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2 Contract API jobs in The City, City of London + 20 miles
Junior Presales Engineer, UK (German & English)
Junior Presales Engineer, UK (German & English)
Optibus Transportation Limited
The City, EC2M 5TQ
From £39,000 to £45,000 per annum Salary displays OTE, which is 80% &
Optibusis a unified software platform revolutionizing public transportation planning, scheduling, and operations in over 7,000 cities worldwide. Using AI, ML, and optimization algorithms, it empowers agencies to design more efficient, equitable, and sustainable transit networks, enhancing passenger access, reducing emissions, and improving driver conditions. With offices globally and a team of 350+ employees, Optibus fosters a collaborative culture centered on innovation, determination, and impact. As the first unicorn in public transportation technology, Optibus is driving the modernization of mass transit to make it the preferred choice for cities and passengers alike. We are looking for a Junior Presales Engineer to join our global Revenue team! Based in London, this individual will play a crucial role in supporting core presales engineering activities in showcasin
Optibusis a unified software platform revolutionizing public transportation planning, scheduling, and operations in over 7,000 cities worldwide. Using AI, ML, and optimization algorithms, it empowers agencies to design more efficient, equitable, and sustainable transit networks, enhancing passenger access, reducing emissions, and improving driver conditions. With offices globally and a team of 350+ employees, Optibus fosters a collaborative culture centered on innovation, determination, and impact. As the first unicorn in public transportation technology, Optibus is driving the modernization of mass transit to make it the preferred choice for cities and passengers alike. We are looking for a Junior Presales Engineer to join our global Revenue team! Based in London, this individual will play a crucial role in supporting core presales engineering activities in showcasin
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Staff Back End Engineer
Staff Back End Engineer
John Lewis & Partners
SW1V, South West London, SW1V 2QQ
From £75,000 to £92,000 per annum
REST API development and/or consumption.
REST API development and/or consumption.
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17 exact matches jobs are outside your preferred location
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Full Stack Software Engineer - AI Innovation
Full Stack Software Engineer - AI Innovation
Connexa
MK1, Milton Keynes
£60000 - £70000 per annum + 20% Bonus
Our client, a growing consultancy delivering cutting-edge AI and data-led services to government and public sector clients, is looking for a Full Stack Software Engineer to join their forward-thinking team in Milton Keynes. This is a fantastic opportunity to contribute to a nationally recognised AI innovation platform used to drive sensitive data discovery, redaction, and secure archiving for government departments. You'll work across a modern tech stack and play a key role in the development, deployment, and support of a secure full stack system used across the UK public sector. * Design, build, and test full stack software in a secure, client-focused environment * Work with modern front-end technologies (React, TypeScript, HTML/CSS) to deliver intuitive UI/UX * Develop robust back-end services using Java and Spring Boot
Our client, a growing consultancy delivering cutting-edge AI and data-led services to government and public sector clients, is looking for a Full Stack Software Engineer to join their forward-thinking team in Milton Keynes. This is a fantastic opportunity to contribute to a nationally recognised AI innovation platform used to drive sensitive data discovery, redaction, and secure archiving for government departments. You'll work across a modern tech stack and play a key role in the development, deployment, and support of a secure full stack system used across the UK public sector. * Design, build, and test full stack software in a secure, client-focused environment * Work with modern front-end technologies (React, TypeScript, HTML/CSS) to deliver intuitive UI/UX * Develop robust back-end services using Java and Spring Boot
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Head of Engineering (Hands on)- London Hybrid
Head of Engineering (Hands on)- London Hybrid
Develop
London
£90000 - £120000 per annum + + benefits & stocks
Deliver front-end excellence: Build fast, responsive web apps using Vite, React Query, Context API, and CSS frameworks. * Design for scale: Lead on API design, performance optimisation, and secure, cloud-ready architectures.
Deliver front-end excellence: Build fast, responsive web apps using Vite, React Query, Context API, and CSS frameworks. * Design for scale: Lead on API design, performance optimisation, and secure, cloud-ready architectures.
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Technical Agile Business Analyst/ Product Engineer
Technical Agile Business Analyst/ Product Engineer
Hays
London, EC3A 4BF
£50000.0 - £60000.0 per annum + 50000-60000
Proficient with tools such as JIRA, Confluence, Figma and an API documentation platform
Proficient with tools such as JIRA, Confluence, Figma and an API documentation platform
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Halian Technology are searching for an Lead Android Engineerto join our clients forward-thinking mobile team. Our client isone of the UKs most trusted and innovative omni-channel retailers, where technology and customer experience go hand in hand. If youre passionate about delivering high-quality mobile experiences and want to work with modern tools, great people, and at a company where learning and development are core valuesthis is the role for you. * Influence architecture and development strategy within a high-performing Agile squad. * Provide technical assurance and guidance across complex, high-impact projects. * Collaborate cross-functionally with iOS Engineers, BAs, QAs, Designers, and UX Specialists. * Champion Android best practices including Accessibility, CI/CD, TDD, and clean architecture.
Halian Technology are searching for an Lead Android Engineerto join our clients forward-thinking mobile team. Our client isone of the UKs most trusted and innovative omni-channel retailers, where technology and customer experience go hand in hand. If youre passionate about delivering high-quality mobile experiences and want to work with modern tools, great people, and at a company where learning and development are core valuesthis is the role for you. * Influence architecture and development strategy within a high-performing Agile squad. * Provide technical assurance and guidance across complex, high-impact projects. * Collaborate cross-functionally with iOS Engineers, BAs, QAs, Designers, and UX Specialists. * Champion Android best practices including Accessibility, CI/CD, TDD, and clean architecture.
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Halian Technology are searching for an Lead Android Engineerto join our clients forward-thinking mobile team. Our client isone of the UKs most trusted and innovative omni-channel retailers, where technology and customer experience go hand in hand. If youre passionate about delivering high-quality mobile experiences and want to work with modern tools, great people, and at a company where learning and development are core valuesthis is the role for you. * Influence architecture and development strategy within a high-performing Agile squad. * Provide technical assurance and guidance across complex, high-impact projects. * Collaborate cross-functionally with iOS Engineers, BAs, QAs, Designers, and UX Specialists. * Champion Android best practices including Accessibility, CI/CD, TDD, and clean architecture.
Halian Technology are searching for an Lead Android Engineerto join our clients forward-thinking mobile team. Our client isone of the UKs most trusted and innovative omni-channel retailers, where technology and customer experience go hand in hand. If youre passionate about delivering high-quality mobile experiences and want to work with modern tools, great people, and at a company where learning and development are core valuesthis is the role for you. * Influence architecture and development strategy within a high-performing Agile squad. * Provide technical assurance and guidance across complex, high-impact projects. * Collaborate cross-functionally with iOS Engineers, BAs, QAs, Designers, and UX Specialists. * Champion Android best practices including Accessibility, CI/CD, TDD, and clean architecture.
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Halian Technology are searching for an Lead Android Engineerto join our clients forward-thinking mobile team. Our client isone of the UKs most trusted and innovative omni-channel retailers, where technology and customer experience go hand in hand. If youre passionate about delivering high-quality mobile experiences and want to work with modern tools, great people, and at a company where learning and development are core valuesthis is the role for you. * Influence architecture and development strategy within a high-performing Agile squad. * Provide technical assurance and guidance across complex, high-impact projects. * Collaborate cross-functionally with iOS Engineers, BAs, QAs, Designers, and UX Specialists. * Champion Android best practices including Accessibility, CI/CD, TDD, and clean architecture.
Halian Technology are searching for an Lead Android Engineerto join our clients forward-thinking mobile team. Our client isone of the UKs most trusted and innovative omni-channel retailers, where technology and customer experience go hand in hand. If youre passionate about delivering high-quality mobile experiences and want to work with modern tools, great people, and at a company where learning and development are core valuesthis is the role for you. * Influence architecture and development strategy within a high-performing Agile squad. * Provide technical assurance and guidance across complex, high-impact projects. * Collaborate cross-functionally with iOS Engineers, BAs, QAs, Designers, and UX Specialists. * Champion Android best practices including Accessibility, CI/CD, TDD, and clean architecture.
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QA Test Automation Engineer Python
QA Test Automation Engineer Python
Client Server
Milton, CB24
£50000 - £65000 per annum + bonus + benefits
You have API testing experience
You have API testing experience
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What we are building - Mimica's mission is to empower enterprises, teams, and individuals to reclaim their most precious resource time and work more efficiently, with greater purpose and impact. Our AI-powered task mining observes employee actions across the desktop and categorizes them into detailed process maps. Mimicas process intelligence highlights inefficiencies, prioritizes improvements based on ROI, recommends the optimal technology for automation (RPA, intelligent document processing, GenAI), and provides a blueprint for building new automations and transforming work. Our approach to engineering * We prioritize customer needs first * We work in small, project-based teams * We have flexibility in terms of the problems we work on * We own the full lifecycle of our projects * We avoid silos and encourage taking up tasks in new areas * We balance quality and velo
What we are building - Mimica's mission is to empower enterprises, teams, and individuals to reclaim their most precious resource time and work more efficiently, with greater purpose and impact. Our AI-powered task mining observes employee actions across the desktop and categorizes them into detailed process maps. Mimicas process intelligence highlights inefficiencies, prioritizes improvements based on ROI, recommends the optimal technology for automation (RPA, intelligent document processing, GenAI), and provides a blueprint for building new automations and transforming work. Our approach to engineering * We prioritize customer needs first * We work in small, project-based teams * We have flexibility in terms of the problems we work on * We own the full lifecycle of our projects * We avoid silos and encourage taking up tasks in new areas * We balance quality and velo
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1. Build and automate workflows that streamline operations, from quoting to delivery. 2. Work with AI and prompt engineering techniques to enhance internal tools and supplier performance systems. 3. Translate business problems into scalable technical solutions using a mix of no-code, low-code, and custom-built products. 4. You will work directly with the CEO and collaborate with Product, Data, Quality, and Operations teams across the UK, India, and China. 5. Own and deliver supply chain optimisation tools and automation strategies . 6. Identify inefficiencies - 7. Design, test, and deploy automation using Zapier, Make, Airtable, SQL, APIs - 8. Develop and refine AI prompt frameworks for internal tools - 9. Collaborate with engineers and data scientists - 10. Translate business goals into product specifications - 11. Lead experiments in automation - 12.
1. Build and automate workflows that streamline operations, from quoting to delivery. 2. Work with AI and prompt engineering techniques to enhance internal tools and supplier performance systems. 3. Translate business problems into scalable technical solutions using a mix of no-code, low-code, and custom-built products. 4. You will work directly with the CEO and collaborate with Product, Data, Quality, and Operations teams across the UK, India, and China. 5. Own and deliver supply chain optimisation tools and automation strategies . 6. Identify inefficiencies - 7. Design, test, and deploy automation using Zapier, Make, Airtable, SQL, APIs - 8. Develop and refine AI prompt frameworks for internal tools - 9. Collaborate with engineers and data scientists - 10. Translate business goals into product specifications - 11. Lead experiments in automation - 12.
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Experience with microservice and API-based development, including designing and implementing REST and GraphQL APIs, and understanding API security patterns.
Experience with microservice and API-based development, including designing and implementing REST and GraphQL APIs, and understanding API security patterns.
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Who we are - At Twilio, we're shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work, and strong culture of connection and global inclusion means that no matter your location, you're part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we're acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. See yourself at Twilio - Join us as our next Senior Solutions Engineer on Twilio's Digital Sales Communications team! About the job - This position is needed to enable our customers to build the future of communications.
Who we are - At Twilio, we're shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work, and strong culture of connection and global inclusion means that no matter your location, you're part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we're acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. See yourself at Twilio - Join us as our next Senior Solutions Engineer on Twilio's Digital Sales Communications team! About the job - This position is needed to enable our customers to build the future of communications.
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Solid understanding of networking concepts, security policies, and API gateways in cloud environments. * Building SDKs or client libraries to support API consumption.
Solid understanding of networking concepts, security policies, and API gateways in cloud environments. * Building SDKs or client libraries to support API consumption.
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Job Title: Social Media Technology Executive - Location: 1HQ - Type of contract: full-time, permanent - Diageo is the worlds leading premium drinks company, a business built on the principles and foundations laid by the giants of our industry. Arthur Guinness, Alexander Walker, and many other dedicated people that followed in their footsteps, cared deeply about the people and businesses they fostered, and the communities in which they operated. Today we stand on the shoulders of these giants and act with the same entrepreneurial spirit. We are a spirited company born of an incredible entrepreneurial legacy. The success of Guinness, Smirnoff, Johnnie Walker, Tanqueray, Baileys and many more brands led to the formation of our company in 1997. And we only thrive today because of the talent of our people to grow our brands, old and new, and keep them strong.
Job Title: Social Media Technology Executive - Location: 1HQ - Type of contract: full-time, permanent - Diageo is the worlds leading premium drinks company, a business built on the principles and foundations laid by the giants of our industry. Arthur Guinness, Alexander Walker, and many other dedicated people that followed in their footsteps, cared deeply about the people and businesses they fostered, and the communities in which they operated. Today we stand on the shoulders of these giants and act with the same entrepreneurial spirit. We are a spirited company born of an incredible entrepreneurial legacy. The success of Guinness, Smirnoff, Johnnie Walker, Tanqueray, Baileys and many more brands led to the formation of our company in 1997. And we only thrive today because of the talent of our people to grow our brands, old and new, and keep them strong.
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Have practical knowledge of C#, Web API testing, Azure portal.
Have practical knowledge of C#, Web API testing, Azure portal.
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Familiarity with relevant standards (DNV, API, ISO) and regulatory frameworks.
Familiarity with relevant standards (DNV, API, ISO) and regulatory frameworks.
Experience integrating front-end applications with Internal/External API. * Experience with API development.
Experience integrating front-end applications with Internal/External API. * Experience with API development.
Binance is a leading global blockchain ecosystem behind the worlds largest cryptocurrency exchange by trading volume and registered users. We are trusted by over 280 million people in 100+ countries for our industry-leading security, user fund transparency, trading engine speed, deep liquidity, and an unmatched portfolio of digital-asset products. Binance offerings range from trading and finance to education, research, payments, institutional services, Web3 features, and more. We leverage the power of digital assets and blockchain to build an inclusive financial ecosystem to advance the freedom of money and improve financial access for people around the world. Binance is looking for an experienced QA Engineer (mid to senior level) to drive and support Integration Testing of our high-performance backend software stack.
Binance is a leading global blockchain ecosystem behind the worlds largest cryptocurrency exchange by trading volume and registered users. We are trusted by over 280 million people in 100+ countries for our industry-leading security, user fund transparency, trading engine speed, deep liquidity, and an unmatched portfolio of digital-asset products. Binance offerings range from trading and finance to education, research, payments, institutional services, Web3 features, and more. We leverage the power of digital assets and blockchain to build an inclusive financial ecosystem to advance the freedom of money and improve financial access for people around the world. Binance is looking for an experienced QA Engineer (mid to senior level) to drive and support Integration Testing of our high-performance backend software stack.
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World Class Defence Organisation is currently looking to recruit a Test Development Engineer on an initial 6 month contract. The Test Equipment Hardware Design Capability group is a function home to the engineers working as part of the Test Equipment Centre of Excellence (TE CofEx), within Electronic Engineering (EE) Directorate. * Skilled Hardware Design Engineers with proven experience to support the design, integration and validation of test system hardware solutions. * Knowledge of test needs and techniques in support of product life cycle development. * Define & specify test approaches; identifying any potential improvements to test/diagnostic processes. * Experience of Design Proving and perform
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Lead Engineer - Global investment bank
Lead Engineer - Global investment bank
McGregor Boyall Associates Limited
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£150000 - £180000 per annum + bonus, pension, healthcare
This is an opportunity to join at SVP level as a hands-on Technical Lead, steering engineering standards, cloud strategy, and distributed system design for one of the most ambitious financial technology projects in the world. * Lead technical direction of a next-gen cross-asset risk platform - We are partnering with a global financial institution on a Greenfield platform build that will redefine large-scale risk and trading technology. Why apply? * Greenfield engineering - modern tech stack: Java, Spring Boot, Kubernetes (EKS & GKE), Kafka, Apache Ignite, MongoDB, RabbitMQ, Solace * Massive scale - billions of risk calculations per day across trading desks globally * Impact & visibility - shape the technical direction while mentoring global engineering teams * Hybrid working - Moorgate Innovation Lab, 2 days per week onsite * Compensa
This is an opportunity to join at SVP level as a hands-on Technical Lead, steering engineering standards, cloud strategy, and distributed system design for one of the most ambitious financial technology projects in the world. * Lead technical direction of a next-gen cross-asset risk platform - We are partnering with a global financial institution on a Greenfield platform build that will redefine large-scale risk and trading technology. Why apply? * Greenfield engineering - modern tech stack: Java, Spring Boot, Kubernetes (EKS & GKE), Kafka, Apache Ignite, MongoDB, RabbitMQ, Solace * Massive scale - billions of risk calculations per day across trading desks globally * Impact & visibility - shape the technical direction while mentoring global engineering teams * Hybrid working - Moorgate Innovation Lab, 2 days per week onsite * Compensa
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Configuration PLM Specialist - Are you a detail-oriented Configuration or PLM professional with a background in aerospace or defence? This is a fantastic opportunity to take ownership of configuration and change management processes for both legacy and new product development. As a Configuration PLM Specialist, youll be responsible for managing the full lifecycle of change and configuration data across engineering disciplines. * Lead the application of aerospace configuration standards across a range of products. * Manage and improve change workflows and configuration baselines using SolidWorks Manage. * Drive continuous improvement in change and configuration processes. * Create configuration management plans tailore
Configuration PLM Specialist - Are you a detail-oriented Configuration or PLM professional with a background in aerospace or defence? This is a fantastic opportunity to take ownership of configuration and change management processes for both legacy and new product development. As a Configuration PLM Specialist, youll be responsible for managing the full lifecycle of change and configuration data across engineering disciplines. * Lead the application of aerospace configuration standards across a range of products. * Manage and improve change workflows and configuration baselines using SolidWorks Manage. * Drive continuous improvement in change and configuration processes. * Create configuration management plans tailore
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We are looking for a motivated Performance engineer to influence the roadmap of our communication libraries. This is an outstanding opportunity for someone with HPC and performance background to advance the state of the art in this space. * M.S. (or equivalent experience) or PHD in Computer Science, or related field with relevant performance engineering and HPC experience * Experience conducting performance benchmarking and triage on large scale HPC clusters - NVIDIA is leading the way in groundbreaking developments in Artificial Intelligence, High Performance Computing and Visualization. Our GPU communication libraries are crucial for scaling Deep Learning and HPC applications! The DL and HPC applications of today have a huge compute demand and run on scales which go up to tens of thousands of GPUs. Communication performance between the GPUs has a direct impact on th
We are looking for a motivated Performance engineer to influence the roadmap of our communication libraries. This is an outstanding opportunity for someone with HPC and performance background to advance the state of the art in this space. * M.S. (or equivalent experience) or PHD in Computer Science, or related field with relevant performance engineering and HPC experience * Experience conducting performance benchmarking and triage on large scale HPC clusters - NVIDIA is leading the way in groundbreaking developments in Artificial Intelligence, High Performance Computing and Visualization. Our GPU communication libraries are crucial for scaling Deep Learning and HPC applications! The DL and HPC applications of today have a huge compute demand and run on scales which go up to tens of thousands of GPUs. Communication performance between the GPUs has a direct impact on th
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We’re looking for an Engineering Manager or Head of Engineering to take the reins of a talented, growing team at a well-funded scale-up that’s transforming how an entire industry operates. * Lead, coach, and grow a multi-disciplinary engineering team (2 technical leads + DevOps) building career paths, mentoring juniors, and creating a culture of ownership. * Be part of a growth journey with real ownership, influence, and scope to shape how engineering operates. Engineering Leadership Role – Scale-Up in Growth Mode (London, Office-First) This fast-moving, high-impact leadership role has you working directly with the founders and senior product leaders to scale teams, drive delivery, and embed a high-performance engineering culture where engineers thrive. You’ll inherit a strong foundation team (2 pods, 15+ engineers across front-end, back-end, full stack, DevOps) and t
We’re looking for an Engineering Manager or Head of Engineering to take the reins of a talented, growing team at a well-funded scale-up that’s transforming how an entire industry operates. * Lead, coach, and grow a multi-disciplinary engineering team (2 technical leads + DevOps) building career paths, mentoring juniors, and creating a culture of ownership. * Be part of a growth journey with real ownership, influence, and scope to shape how engineering operates. Engineering Leadership Role – Scale-Up in Growth Mode (London, Office-First) This fast-moving, high-impact leadership role has you working directly with the founders and senior product leaders to scale teams, drive delivery, and embed a high-performance engineering culture where engineers thrive. You’ll inherit a strong foundation team (2 pods, 15+ engineers across front-end, back-end, full stack, DevOps) and t
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We are looking for senior engineers who are mindful of performance analysis and optimization to help us squeeze every last clock cycle out of Deep Learning training, inference and NVIDIA AI Services. Work with world class software engineers to implement blazingly fast SOTA deep learning models that help understanding the end-to-end performance of NVIDIAs DL software and hardware stack. We are working across all layers of the hardware/software stack, from GPU architecture to Deep Learning Framework, to achieve peak performance. * Implement deep learning models from multiple data domains (CV, NLP/LLMs, ASR, TTS, RecSys and others) in mu
We are looking for senior engineers who are mindful of performance analysis and optimization to help us squeeze every last clock cycle out of Deep Learning training, inference and NVIDIA AI Services. Work with world class software engineers to implement blazingly fast SOTA deep learning models that help understanding the end-to-end performance of NVIDIAs DL software and hardware stack. We are working across all layers of the hardware/software stack, from GPU architecture to Deep Learning Framework, to achieve peak performance. * Implement deep learning models from multiple data domains (CV, NLP/LLMs, ASR, TTS, RecSys and others) in mu
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