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Api
East Sussex
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0 Permanent API jobs in East Sussex + 20 miles
66 exact matches jobs are outside your preferred location
This is a hands-on quality engineering role responsible for designing, executing, and maintaining automated and manual tests for backend and API-driven systems in a financial services environment. * Working knowledge of test automation frameworks and tools (e.g., API automation, backend test frameworks, or UI automation where applicable).
This is a hands-on quality engineering role responsible for designing, executing, and maintaining automated and manual tests for backend and API-driven systems in a financial services environment. * Working knowledge of test automation frameworks and tools (e.g., API automation, backend test frameworks, or UI automation where applicable).
Design, develop, and maintain automated test frameworks for digital asset platforms, with a strong focus on API and backend testing
Design, develop, and maintain automated test frameworks for digital asset platforms, with a strong focus on API and backend testing
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Knowledge in JavaScript, HTML, CSS and understanding of CI/CD, REST API
Knowledge in JavaScript, HTML, CSS and understanding of CI/CD, REST API
PREMIUM
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The organisation's website operates on a headless architecture using Contentful CMS, with the front-end hosted on Vercel, and integrates with CRM, analytics, and internal systems through API-driven services. * Design and implement API-driven integrations between core systems including CRM, website platforms, marketing tools, analytics environments, and internal databases, ensuring systems operate as a connected digital ecosystem. * Experience building API-driven integrations between enterprise platforms including CRM systems, web platforms, marketing systems, and analytics environments.
The organisation's website operates on a headless architecture using Contentful CMS, with the front-end hosted on Vercel, and integrates with CRM, analytics, and internal systems through API-driven services. * Design and implement API-driven integrations between core systems including CRM, website platforms, marketing tools, analytics environments, and internal databases, ensuring systems operate as a connected digital ecosystem. * Experience building API-driven integrations between enterprise platforms including CRM systems, web platforms, marketing systems, and analytics environments.
PREMIUM
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Product Management - Private markets, Charles River Development, Assistant Vice President
Product Management - Private markets, Charles River Development, Assistant Vice President
State Street Corporation
London
Competitive
Define and deliver the roadmap for horizontal platform capabilities serving all private markets asset classes including core data services, cross-fund analytics, workflow automation, and API infrastructure. * Familiarity with data architecture concepts: data modeling, ETL pipelines, API design, and event-driven systems. * Experience with API-first product design and developer experience (DX) programs.
Define and deliver the roadmap for horizontal platform capabilities serving all private markets asset classes including core data services, cross-fund analytics, workflow automation, and API infrastructure. * Familiarity with data architecture concepts: data modeling, ETL pipelines, API design, and event-driven systems. * Experience with API-first product design and developer experience (DX) programs.
Strong expertise in Snowflake architecture and AWS cloud services (incl API interfaces).
Strong expertise in Snowflake architecture and AWS cloud services (incl API interfaces).
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T24 Technical Specialist (Temenos Transact)
T24 Technical Specialist (Temenos Transact)
Hireful
Central London, London
£66K Basic + Bonus + Benefits package
We are seeking an experienced T24 Technical Specialist to join a dynamic international banking technology team in Central London. This is an excellent opportunity for a technically strong professional with deep expertise in Temenos Transact (T24) to play a key role in supporting, enhancing, and evolving a critical core banking platform. This is an in-house, end client role with exceptional career security, progression & stability. Location: Central London (Hybrid: 4 days office / 1 day home) Salary: £66,000 per annum starting salary + bonus & very good corporate bank benefits package - Job title: Temenos Transact (T24) Systems Developer. The Role - You will act as a subject matter expert for T24, ensuring smooth day-to-day operations, driving system improvements, and supporting integrations across the bank’s IT landscape.
We are seeking an experienced T24 Technical Specialist to join a dynamic international banking technology team in Central London. This is an excellent opportunity for a technically strong professional with deep expertise in Temenos Transact (T24) to play a key role in supporting, enhancing, and evolving a critical core banking platform. This is an in-house, end client role with exceptional career security, progression & stability. Location: Central London (Hybrid: 4 days office / 1 day home) Salary: £66,000 per annum starting salary + bonus & very good corporate bank benefits package - Job title: Temenos Transact (T24) Systems Developer. The Role - You will act as a subject matter expert for T24, ensuring smooth day-to-day operations, driving system improvements, and supporting integrations across the bank’s IT landscape.
FEATURED
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Freshfields is undergoing an exciting period of digital transformation, and we are looking for an Innovation Engineer to help us accelerate it. This is a high-impact, hands-on role for someone who loves to build, experiment, and turn innovative ideas into working solutions that make a meaningful difference across our global firm. Working within our Innovation team, you will rapidly prototype, develop, and iterate new tools, workflows, and AI-powered solutions helping our people work smarter, faster, and more effectively. If you thrive in fast-moving environments, enjoy collaborating across teams, and have a passion for creating real, usable technology, wed love to hear from you. Working at Freshfields - Youll join a fast-paced, globally connected team focused on shaping the future of legal work. We work in a hybrid model, collaborating with colleagues across time zones, and ...
Freshfields is undergoing an exciting period of digital transformation, and we are looking for an Innovation Engineer to help us accelerate it. This is a high-impact, hands-on role for someone who loves to build, experiment, and turn innovative ideas into working solutions that make a meaningful difference across our global firm. Working within our Innovation team, you will rapidly prototype, develop, and iterate new tools, workflows, and AI-powered solutions helping our people work smarter, faster, and more effectively. If you thrive in fast-moving environments, enjoy collaborating across teams, and have a passion for creating real, usable technology, wed love to hear from you. Working at Freshfields - Youll join a fast-paced, globally connected team focused on shaping the future of legal work. We work in a hybrid model, collaborating with colleagues across time zones, and ...
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Position Overview - Job Title Lead Engineer - Location London - Corporate Title Vice President - You will play a key role in the transformation of Rates and Credit Fixed Income technology landscape. As part of our multi-year platform modernisation project, you will be responsible for building a suite of new, real-time, high-performance applications supporting various trading workflows. You will be involved in architecting solutions across the stack, encouraging best practices and working closely with Business stakeholders to build a maintainable, operationally efficient and scalable platform to last the next decade. What well offer you - A healthy, engaged and well-supported workforce are better equipped to do their best work and, more importantly, enjoy their lives inside and outside the workplace. Thats why we are committed to providing an environment with your development and ...
Position Overview - Job Title Lead Engineer - Location London - Corporate Title Vice President - You will play a key role in the transformation of Rates and Credit Fixed Income technology landscape. As part of our multi-year platform modernisation project, you will be responsible for building a suite of new, real-time, high-performance applications supporting various trading workflows. You will be involved in architecting solutions across the stack, encouraging best practices and working closely with Business stakeholders to build a maintainable, operationally efficient and scalable platform to last the next decade. What well offer you - A healthy, engaged and well-supported workforce are better equipped to do their best work and, more importantly, enjoy their lives inside and outside the workplace. Thats why we are committed to providing an environment with your development and ...
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Summary - Posted: 18 Mar 2026Weekly Hours: 35 - Role Number:200650956-2114Apple is a place where extraordinary people gather to do their best work. Together we create products and experiences people once couldnt have imagined - and now cant imagine living without. If youre motivated by the idea of making a real impact, and joining a team where we pride ourselves in being one of the most diverse and inclusive companies in the world, a career with Apple might be your dream job! You will become a member of the Sales Finance team at Apple. With approximately 150 employees based across 4 regional hubs within EMEIA (Europe, Middle East, India and Africa), we create value, collaborating with many teams to provide outstanding commercial and financial support. We set the bar high; go out of our way to help others; share knowledge; filter out noise to focus on the essential; encourage ...
Summary - Posted: 18 Mar 2026Weekly Hours: 35 - Role Number:200650956-2114Apple is a place where extraordinary people gather to do their best work. Together we create products and experiences people once couldnt have imagined - and now cant imagine living without. If youre motivated by the idea of making a real impact, and joining a team where we pride ourselves in being one of the most diverse and inclusive companies in the world, a career with Apple might be your dream job! You will become a member of the Sales Finance team at Apple. With approximately 150 employees based across 4 regional hubs within EMEIA (Europe, Middle East, India and Africa), we create value, collaborating with many teams to provide outstanding commercial and financial support. We set the bar high; go out of our way to help others; share knowledge; filter out noise to focus on the essential; encourage ...
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We are seeking an experienced Systems Engineer with strong expertise in enterprise IoT infrastructure, server engineering, and networking to support and implement IoT/OT solutions for a global financial services environment. This is not a traditional Windows Administrator or L1 support role. The position requires L2 to early L3 technical depth, combining architectural understanding with hands-on implementation, troubleshooting, and operational support across devices, networks, servers, SaaS platforms, and security frameworks. The role supports enterprise-grade IoT deployments, including device configuration, patch testing, secure integrations, and rollout activities, while working closely with internal teams, vendors, and stakeholders. Key Responsibilities * Support and implement enterprise IoT/OT device infrastructure, including configuration, maintenance, patching, and ...
We are seeking an experienced Systems Engineer with strong expertise in enterprise IoT infrastructure, server engineering, and networking to support and implement IoT/OT solutions for a global financial services environment. This is not a traditional Windows Administrator or L1 support role. The position requires L2 to early L3 technical depth, combining architectural understanding with hands-on implementation, troubleshooting, and operational support across devices, networks, servers, SaaS platforms, and security frameworks. The role supports enterprise-grade IoT deployments, including device configuration, patch testing, secure integrations, and rollout activities, while working closely with internal teams, vendors, and stakeholders. Key Responsibilities * Support and implement enterprise IoT/OT device infrastructure, including configuration, maintenance, patching, and ...
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81357 - Power System & Product Development Engineer
81357 - Power System & Product Development Engineer
CBSbutler Holdings Limited
City of London (EC1)
bonus
Power System & Product Development Engineer - London - Hybrid Salary: £80,574 + 3% bonus - We are seeking a Power System & Product Development Engineer to support the development of a smarter, more flexible electricity network. This role combines power systems engineering with digital product development, focusing on building tools that support flexible connections, DER integration, and DERMS operations across the network. Responsibilities * Lead development of smart grid digital tools supporting flexible connections and DERMS. * Perform power system studies (thermal, voltage, fault level) to identify network constraints. * Develop Python-based tools, data pipelines, dashboards, and APIs. * Use GitHub for version control and collaborative development. * Work with teams across DSO, Planning, Operations, and IT, as well as external partners.
Power System & Product Development Engineer - London - Hybrid Salary: £80,574 + 3% bonus - We are seeking a Power System & Product Development Engineer to support the development of a smarter, more flexible electricity network. This role combines power systems engineering with digital product development, focusing on building tools that support flexible connections, DER integration, and DERMS operations across the network. Responsibilities * Lead development of smart grid digital tools supporting flexible connections and DERMS. * Perform power system studies (thermal, voltage, fault level) to identify network constraints. * Develop Python-based tools, data pipelines, dashboards, and APIs. * Use GitHub for version control and collaborative development. * Work with teams across DSO, Planning, Operations, and IT, as well as external partners.
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Senior Solutions Engineer
Senior Solutions Engineer
SCALERS GROUP LIMITED
The City, City of London (EC2), EC3V
From £80,000 to £90,000 per annum
UK, Remote - Scalers HQ is proud to be partnering with an innovative SaaS FinTech & Payments business in the UK. The SaaS platform our client has built takes away a lot of pain points of payment fragmentation. Were looking for a Senior Solution Engineer, ideally with SaaS or Payments background to contribute towards ambitious growth plans across EMEA. This is an exciting time to join our FinTech partner, and youll join a scaling a team that are rapidly growing. Responsibilities * Communicate with C-suite and senior leaders across commercial and tech to support them in building incredible experiences for their customers * Writing integration plans and sample code for sellers to assist them in implementing their own personalised integration * Lead technical discovery and solution design for global enterprises with complex requirements. * Mentor new & junior members
UK, Remote - Scalers HQ is proud to be partnering with an innovative SaaS FinTech & Payments business in the UK. The SaaS platform our client has built takes away a lot of pain points of payment fragmentation. Were looking for a Senior Solution Engineer, ideally with SaaS or Payments background to contribute towards ambitious growth plans across EMEA. This is an exciting time to join our FinTech partner, and youll join a scaling a team that are rapidly growing. Responsibilities * Communicate with C-suite and senior leaders across commercial and tech to support them in building incredible experiences for their customers * Writing integration plans and sample code for sellers to assist them in implementing their own personalised integration * Lead technical discovery and solution design for global enterprises with complex requirements. * Mentor new & junior members
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Production Engineers (PEs) at Meta are specialized software engineers who develop the underlying infrastructure for all of Meta's products and services, forming the backbone of every major engineering effort that keeps our platforms running smoothly and scaling efficiently.PEs work across Metas product and infrastructure teams to ensure our services are reliable, performant, and capable of supporting billions of users. This means writing high-quality code, solving complex problems in live production, and tackling challenges that impact over 2 billion people worldwide. Our PEs are embedded in teams across the spectrum, from products like Instagram, WhatsApp, Oculus, and Videos to critical backend services such as Storage, Cache, and Networking. The team brings together diverse levels of experience and backgrounds.
Production Engineers (PEs) at Meta are specialized software engineers who develop the underlying infrastructure for all of Meta's products and services, forming the backbone of every major engineering effort that keeps our platforms running smoothly and scaling efficiently.PEs work across Metas product and infrastructure teams to ensure our services are reliable, performant, and capable of supporting billions of users. This means writing high-quality code, solving complex problems in live production, and tackling challenges that impact over 2 billion people worldwide. Our PEs are embedded in teams across the spectrum, from products like Instagram, WhatsApp, Oculus, and Videos to critical backend services such as Storage, Cache, and Networking. The team brings together diverse levels of experience and backgrounds.
This means writing high-quality code, solving complex problems in live production, and tackling challenges that impact over 2 billion people worldwide. Our PEs are embedded in teams across the spectrum from products like Instagram, WhatsApp, Oculus, and Videos to critical backend services such as Storage, Cache, and Networking. The team brings together diverse levels of experience and backgrounds. Working alongside some of the best engineers in the industry, youll contribute to code and systems that go into production and are used by millions every day. In Production Engineering at Meta, we navigate uncharted waters daily solving problems at a scale few others face. * Own the end-to-end reliability and scalability of the platforms, services, and products built on top of Metas underlying infrastructure and network
This means writing high-quality code, solving complex problems in live production, and tackling challenges that impact over 2 billion people worldwide. Our PEs are embedded in teams across the spectrum from products like Instagram, WhatsApp, Oculus, and Videos to critical backend services such as Storage, Cache, and Networking. The team brings together diverse levels of experience and backgrounds. Working alongside some of the best engineers in the industry, youll contribute to code and systems that go into production and are used by millions every day. In Production Engineering at Meta, we navigate uncharted waters daily solving problems at a scale few others face. * Own the end-to-end reliability and scalability of the platforms, services, and products built on top of Metas underlying infrastructure and network
This means writing high-quality code, solving complex problems in live production, and tackling challenges that impact over 2 billion people worldwide. Our PEs are embedded in teams across the spectrum from products like Instagram, WhatsApp, Oculus, and Videos to critical backend services such as Storage, Cache, and Networking. The team brings together diverse levels of experience and backgrounds. Working alongside some of the best engineers in the industry, youll contribute to code and systems that go into production and are used by millions every day. In Production Engineering at Meta, we navigate uncharted waters daily solving problems at a scale few others face. * Own back-end services like our Hadoop data warehouses, front-end services like Messenger and Newsfeed, infrastructure components like our Memcache infrastructure, and everything in between
This means writing high-quality code, solving complex problems in live production, and tackling challenges that impact over 2 billion people worldwide. Our PEs are embedded in teams across the spectrum from products like Instagram, WhatsApp, Oculus, and Videos to critical backend services such as Storage, Cache, and Networking. The team brings together diverse levels of experience and backgrounds. Working alongside some of the best engineers in the industry, youll contribute to code and systems that go into production and are used by millions every day. In Production Engineering at Meta, we navigate uncharted waters daily solving problems at a scale few others face. * Own back-end services like our Hadoop data warehouses, front-end services like Messenger and Newsfeed, infrastructure components like our Memcache infrastructure, and everything in between
LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, manage risk and create jobs. Its how weve contributed to supporting the financial stability and growth of communities and economies globally for more than 300 years. Through a comprehensive suite of trusted financial market infrastructure services and our open-access model we provide the flexibility, stability and trust that enable our customers to pursue their ambitions with confidence and clarity.
LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, manage risk and create jobs. Its how weve contributed to supporting the financial stability and growth of communities and economies globally for more than 300 years. Through a comprehensive suite of trusted financial market infrastructure services and our open-access model we provide the flexibility, stability and trust that enable our customers to pursue their ambitions with confidence and clarity.
Join our team here at StepStone and youll be responsible for providing technical leadership to all engineering and development areas across your domain, developing and executing an engineering strategy aligned to the portfolio and global tech strategies. Working in the Design and Platform Performance domain, you willlead the technology side of web and mobile analytics for a platform with over 50 million visits each month, deliver the best user experiences and personalisation for talent and talent seekers. We built in-house large scale tracking platform, powered by Tealium, Kafka and Adobe Analytics, and successfully rolled it out to 10 of our brands. Along with the tracking we are owners of our AB testing tool Optimizely, our in-house Design System Genesys and Frontend Framework, which when put together powers the product development at scale using a data driven ...
Join our team here at StepStone and youll be responsible for providing technical leadership to all engineering and development areas across your domain, developing and executing an engineering strategy aligned to the portfolio and global tech strategies. Working in the Design and Platform Performance domain, you willlead the technology side of web and mobile analytics for a platform with over 50 million visits each month, deliver the best user experiences and personalisation for talent and talent seekers. We built in-house large scale tracking platform, powered by Tealium, Kafka and Adobe Analytics, and successfully rolled it out to 10 of our brands. Along with the tracking we are owners of our AB testing tool Optimizely, our in-house Design System Genesys and Frontend Framework, which when put together powers the product development at scale using a data driven ...
PREMIUM
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Principle Java Engineer
Principle Java Engineer
Profile 29
South East London (SE1)
From £65,000 to £75,000 per annum + benefits + hybrid home working
Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Profile 29 recruitment keywords: Java software engineer object-oriented design OOD Camunda BPMN DMN Spring Boot REST API microservice architecture Docker Kubernetes containerisation orchestration Git CI/CD pipelines automated testing frameworks Kafka RabbitMQ Security authentication integration patterns enterprise systems agile digital transformation automation Java developer Camunda developer Zeebe Cloud AWS Azure GCP Terraform Helm process automation agentic AI artificial intelligence security clearance SC DV eDV London home based hybrid lead senior manager manage
Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Profile 29 recruitment keywords: Java software engineer object-oriented design OOD Camunda BPMN DMN Spring Boot REST API microservice architecture Docker Kubernetes containerisation orchestration Git CI/CD pipelines automated testing frameworks Kafka RabbitMQ Security authentication integration patterns enterprise systems agile digital transformation automation Java developer Camunda developer Zeebe Cloud AWS Azure GCP Terraform Helm process automation agentic AI artificial intelligence security clearance SC DV eDV London home based hybrid lead senior manager manage
Principle Java Engineer
Principle Java Engineer
Profile 29
South East London (SE1)
From £65,000 to £75,000 per annum + benefits + hybrid home working
Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Profile 29 recruitment keywords: Java software engineer object-oriented design OOD Camunda BPMN DMN Spring Boot REST API microservice architecture Docker Kubernetes containerisation orchestration Git CI/CD pipelines automated testing frameworks Kafka RabbitMQ Security authentication integration patterns enterprise systems agile digital transformation automation Java developer Camunda developer Zeebe Cloud AWS Azure GCP Terraform Helm process automation agentic AI artificial intelligence security clearance SC DV eDV London home based hybrid lead senior manager manage
Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Profile 29 recruitment keywords: Java software engineer object-oriented design OOD Camunda BPMN DMN Spring Boot REST API microservice architecture Docker Kubernetes containerisation orchestration Git CI/CD pipelines automated testing frameworks Kafka RabbitMQ Security authentication integration patterns enterprise systems agile digital transformation automation Java developer Camunda developer Zeebe Cloud AWS Azure GCP Terraform Helm process automation agentic AI artificial intelligence security clearance SC DV eDV London home based hybrid lead senior manager manage
Principle Java Engineer
Principle Java Engineer
Profile 29
South East London (SE1)
From £65,000 to £75,000 per annum + benefits + hybrid home working
Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Profile 29 recruitment keywords: Java software engineer object-oriented design OOD Camunda BPMN DMN Spring Boot REST API microservice architecture Docker Kubernetes containerisation orchestration Git CI/CD pipelines automated testing frameworks Kafka RabbitMQ Security authentication integration patterns enterprise systems agile digital transformation automation Java developer Camunda developer Zeebe Cloud AWS Azure GCP Terraform Helm process automation agentic AI artificial intelligence security clearance SC DV eDV London home based hybrid lead senior manager manage
Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable, and resilient digital services. Profile 29 recruitment keywords: Java software engineer object-oriented design OOD Camunda BPMN DMN Spring Boot REST API microservice architecture Docker Kubernetes containerisation orchestration Git CI/CD pipelines automated testing frameworks Kafka RabbitMQ Security authentication integration patterns enterprise systems agile digital transformation automation Java developer Camunda developer Zeebe Cloud AWS Azure GCP Terraform Helm process automation agentic AI artificial intelligence security clearance SC DV eDV London home based hybrid lead senior manager manage
Experience in large code bases, including API design techniques
Experience in large code bases, including API design techniques
With over 300 million downloads and processing 5+ billion images annually, we serve both individual creators and major enterprises like Amazon, DoorDash, and Decathlon through our B2C app and B2B API solutions. * Role: Senior API Engineer (Fast API/Python) Our Image Editing API enables anyone to easily create high-quality images with a variety of AI-powered features including background removal, AI shadows, AI backgrounds * You will collaborate with your team to prioritize and implement the most impactful features for the API. * You will get fast feedback from API users and will iterate quickly (we update the API several times a week). You will follow the usage of the API and make decisions based on that. * The API is growing fast and sits at the intersection of developer experience and state-of-the-art AI image models.
With over 300 million downloads and processing 5+ billion images annually, we serve both individual creators and major enterprises like Amazon, DoorDash, and Decathlon through our B2C app and B2B API solutions. * Role: Senior API Engineer (Fast API/Python) Our Image Editing API enables anyone to easily create high-quality images with a variety of AI-powered features including background removal, AI shadows, AI backgrounds * You will collaborate with your team to prioritize and implement the most impactful features for the API. * You will get fast feedback from API users and will iterate quickly (we update the API several times a week). You will follow the usage of the API and make decisions based on that. * The API is growing fast and sits at the intersection of developer experience and state-of-the-art AI image models.
Additional Experience: Experience with microservices architecture and API management.
Additional Experience: Experience with microservices architecture and API management.
Architecting and implementation of middleware or service-layer solutions (e.g., Dell Boomi, Kafka, API Gateways) to support scalable, event-driven integrations * REST API & Integration Engineering * API security (OAuth2, JWT, API Gateways, mTLS)
Architecting and implementation of middleware or service-layer solutions (e.g., Dell Boomi, Kafka, API Gateways) to support scalable, event-driven integrations * REST API & Integration Engineering * API security (OAuth2, JWT, API Gateways, mTLS)