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3 Permanent API jobs in Kings Langley + 20 miles
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Associate Director, Engineering (Education)
Associate Director, Engineering (Education)
IRIS Recruitment
Slough (SL3)
Competitive plus bonus and benefits
Ensure scalable, API-first, cloud-native platform design * Strong understanding of DevOps, SRE, API architecture and AI integration
Ensure scalable, API-first, cloud-native platform design * Strong understanding of DevOps, SRE, API architecture and AI integration
FEATURED
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Experience with infrastructure-as-code, production-grade Linux environments, and API services (Flask/Gunicorn).
Experience with infrastructure-as-code, production-grade Linux environments, and API services (Flask/Gunicorn).
FEATURED
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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
118 exact matches jobs are outside your preferred location
Senior Android Developer – Kotlin / Mobile Applications
Senior Android Developer – Kotlin / Mobile Applications
Intelligent Talent Solutions Ltd
Bracknell (RG12)
From £68,000 to £88,000 per annum Pension, staff discounts, medical
Implement robust REST API integrations
Implement robust REST API integrations
Assist with API integration and monitoring using API Management platforms. * Understanding of WAF and API security basics.
Assist with API integration and monitoring using API Management platforms. * Understanding of WAF and API security basics.
FEATURED
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Network Automation Engineer Specialist (telecoms/ network)
Network Automation Engineer Specialist (telecoms/ network)
Talent Locker
Reading (RG1)
£60000 - £65000 per annum
Experience with API management platforms (Apigee, Kong, OpenShift API Management) and Web Application Firewalls (WAF) is highly desirable. * Implement and manage API Management solutions and Web Application Firewalls (WAF). * Experience with API management (Apigee, Kong, OpenShift API Management) and API lifecycle.
Experience with API management platforms (Apigee, Kong, OpenShift API Management) and Web Application Firewalls (WAF) is highly desirable. * Implement and manage API Management solutions and Web Application Firewalls (WAF). * Experience with API management (Apigee, Kong, OpenShift API Management) and API lifecycle.
FEATURED
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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Lead React Native Engineer / Engineering manager
Lead React Native Engineer / Engineering manager
Sanderson Recruitment
City of London (EC1), EC1
£600 - £700 per day + Outside IR35
Strong API/integration experience: REST / GraphQL, auth flows, contract design and resilience patterns
Strong API/integration experience: REST / GraphQL, auth flows, contract design and resilience patterns
FEATURED
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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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Well versed in industry standards such as ISO, API and HI with hands-on experience in design validation and product testing.
Well versed in industry standards such as ISO, API and HI with hands-on experience in design validation and product testing.
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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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Large Scale Solar Electrician
Large Scale Solar Electrician
Astute Technical Recruitment Ltd
Reading (RG1)
£38000.00 - £48000.00 per annum + Van, fuel card, bonus & more
Astute's Renewables team is very proudly partnered with a huge player in the global solar market. We have a focus on the UK market for them and we're actively looking for a Solar Technician / Field Solar Engineer to join the team. The client delivers varying services, from O&M to full design and system integration. This position is field based and we're looking for a Solar Technician / Solar Engineer with a basic salary of up to £48,000 and you'd also receive a hugely impressive benefits package. Large scale / utility scale solar experience is key in achieving the top end of the salary bracket. If you're a Solar Technician or Solar Engineer looking to work for a key organisation in the market, then submit your CV to apply today. Responsibilities and duties of the Field Solar Engineer role * Planned and reactive works across a variety of ground mount solar assets
Astute's Renewables team is very proudly partnered with a huge player in the global solar market. We have a focus on the UK market for them and we're actively looking for a Solar Technician / Field Solar Engineer to join the team. The client delivers varying services, from O&M to full design and system integration. This position is field based and we're looking for a Solar Technician / Solar Engineer with a basic salary of up to £48,000 and you'd also receive a hugely impressive benefits package. Large scale / utility scale solar experience is key in achieving the top end of the salary bracket. If you're a Solar Technician or Solar Engineer looking to work for a key organisation in the market, then submit your CV to apply today. Responsibilities and duties of the Field Solar Engineer role * Planned and reactive works across a variety of ground mount solar assets
Solar Farm Electrician
Solar Farm Electrician
Astute Technical Recruitment Ltd
Northampton (NN1)
£38000 - £48000.00 per annum + van, fuel card, bonus & more
Astute's Renewables team is very proudly partnered with a huge player in the global solar market. We have a focus on the UK market for them and we're actively looking for a Solar Technician / Field Solar Engineer to join the team. The client delivers varying services, from O&M to full design and system integration. This position is field based and we're looking for a Solar Technician / Solar Engineer with a basic salary of up to £45,000 and you'd also receive a hugely impressive benefits package. Large scale / utility scale solar experience is key in achieving the top end of the salary bracket. If you're a Solar Technician or Solar Engineer looking to work for a key organisation in the market, then submit your CV to apply today. Responsibilities and duties of the Field Solar Engineer role * Planned and reactive works across a variety of ground mount solar assets
Astute's Renewables team is very proudly partnered with a huge player in the global solar market. We have a focus on the UK market for them and we're actively looking for a Solar Technician / Field Solar Engineer to join the team. The client delivers varying services, from O&M to full design and system integration. This position is field based and we're looking for a Solar Technician / Solar Engineer with a basic salary of up to £45,000 and you'd also receive a hugely impressive benefits package. Large scale / utility scale solar experience is key in achieving the top end of the salary bracket. If you're a Solar Technician or Solar Engineer looking to work for a key organisation in the market, then submit your CV to apply today. Responsibilities and duties of the Field Solar Engineer role * Planned and reactive works across a variety of ground mount solar assets
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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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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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£100k - Equity | Remote Flexibility - Typescript | Azure | Python | LLM | Terraform - The Company - We’re working with an early-stage technology company bringing digital transformation to traditionally manual supply chain and product data processes. They are looking for an experienced engineer who can balance hands-on engineering with technical strategy as the business moves through its next phase of growth. This role suits someone who enjoys operating in a small but growing team, is motivated by building solutions, solving complex problems, and is comfortable rolling up their sleeves to deliver. The environment is fast-paced, where priorities can evolve quickly and ambiguity is often part of the journey. The successful candidate will be excited by the autonomy of an early-stage environment and the opportunity to shape the technical direction of a high-potential B2B SaaS platform.
£100k - Equity | Remote Flexibility - Typescript | Azure | Python | LLM | Terraform - The Company - We’re working with an early-stage technology company bringing digital transformation to traditionally manual supply chain and product data processes. They are looking for an experienced engineer who can balance hands-on engineering with technical strategy as the business moves through its next phase of growth. This role suits someone who enjoys operating in a small but growing team, is motivated by building solutions, solving complex problems, and is comfortable rolling up their sleeves to deliver. The environment is fast-paced, where priorities can evolve quickly and ambiguity is often part of the journey. The successful candidate will be excited by the autonomy of an early-stage environment and the opportunity to shape the technical direction of a high-potential B2B SaaS platform.
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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.
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Our client is seeking a contract Threat Detection Engineer to support the ongoing delivery of detection engineering activities within a busy SOC environment. This role is centred on hands-on engineering and execution, ensuring detection content, automations, and integrations are delivered effectively and aligned to operational priorities. Working closely with threat hunting and SOC teams, you will translate detection requirements into practical outcomes, contributing directly to sprint-based delivery and continuous service improvement. This is a highly technical role suited to someone who enjoys building, tuning, and optimising detection capabilities across modern security platforms. Key Responsibilities * Develop and deliver detection content in line with sprint priorities and operational requirements
Our client is seeking a contract Threat Detection Engineer to support the ongoing delivery of detection engineering activities within a busy SOC environment. This role is centred on hands-on engineering and execution, ensuring detection content, automations, and integrations are delivered effectively and aligned to operational priorities. Working closely with threat hunting and SOC teams, you will translate detection requirements into practical outcomes, contributing directly to sprint-based delivery and continuous service improvement. This is a highly technical role suited to someone who enjoys building, tuning, and optimising detection capabilities across modern security platforms. Key Responsibilities * Develop and deliver detection content in line with sprint priorities and operational requirements
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