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79 Permanent API jobs in South Ockendon + 20 miles
287 exact matches jobs are outside your preferred location
Experience in API-first development
Experience in API-first development
Technical Acumen Conversant in LLM/RAG concepts, latencycost trade-offs, and API- vs UI-based product considerations.
Technical Acumen Conversant in LLM/RAG concepts, latencycost trade-offs, and API- vs UI-based product considerations.
Currently, our micro-services communicate via REST API calls, fostering seamless integration between different services.
Currently, our micro-services communicate via REST API calls, fostering seamless integration between different services.
Integrate messaging campaigns into our existing lifecycle stack (e.g., Braze, WhatsApp Business API). * Technical fluency with tools such as Braze, Twilio, or WhatsApp Business API, and a working knowledge of customer data flows.
Integrate messaging campaigns into our existing lifecycle stack (e.g., Braze, WhatsApp Business API). * Technical fluency with tools such as Braze, Twilio, or WhatsApp Business API, and a working knowledge of customer data flows.
Technology - Golang, Kafka, NoSQL databases, REST and SOAP API, Microservices, Angular/React/Node or similar frameworks * Restful Services (JAX-RS), REST and SOAP API, Microservices
Technology - Golang, Kafka, NoSQL databases, REST and SOAP API, Microservices, Angular/React/Node or similar frameworks * Restful Services (JAX-RS), REST and SOAP API, Microservices
Experience with API Gateways (e.g. GCP). * Knowledge of security best practices in API development (e.g., SAML, OAuth, JWT).
Experience with API Gateways (e.g. GCP). * Knowledge of security best practices in API development (e.g., SAML, OAuth, JWT).
Strong understanding of API design
Strong understanding of API design
Api documentation apiary blueprint, swagger
Api documentation apiary blueprint, swagger
This position will serve as the bridge between development, operations, and integration teams - ensuring automated deployments, robust monitoring, and efficient API/data exchange processes that support business objectives. * Strong hands-on experience with AWS core services (EC2, ECS/EKS, Lambda, S3, RDS, IAM, API Gateway, CloudFormation/Terraform).
This position will serve as the bridge between development, operations, and integration teams - ensuring automated deployments, robust monitoring, and efficient API/data exchange processes that support business objectives. * Strong hands-on experience with AWS core services (EC2, ECS/EKS, Lambda, S3, RDS, IAM, API Gateway, CloudFormation/Terraform).
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Ability to design and build end-to-end applications and API integrations.
Ability to design and build end-to-end applications and API integrations.
You can translate rulebooks or API specs into requirements
You can translate rulebooks or API specs into requirements
Solid experience with cloud platforms, particularly AWS or Azure, and serverless infrastructure such as Lambda, API Gateway, Glue, DynamoDB, etc.
Solid experience with cloud platforms, particularly AWS or Azure, and serverless infrastructure such as Lambda, API Gateway, Glue, DynamoDB, etc.
Collaborate on API design for data access patterns * Experience with both REST API and GraphQL endpoint development * AWS experience preferred (EC2, RDS, Lambda, API Gateway, etc.)
Collaborate on API design for data access patterns * Experience with both REST API and GraphQL endpoint development * AWS experience preferred (EC2, RDS, Lambda, API Gateway, etc.)
Hands-on experience with API integration projects , preferably using MuleSoft , and solid understanding of data contracts and end-to-end data flows in enterprise systems.
Hands-on experience with API integration projects , preferably using MuleSoft , and solid understanding of data contracts and end-to-end data flows in enterprise systems.
Experience with backend testing and API validation.
Experience with backend testing and API validation.
Conduct different testing types and adapt them to the project need: functional testing, regression testing, API testing, integration testing, security testing, performance testing, contract testing. * Implement and maintain automated testing framework for UI, API and AI/ML solutions. * Proficiency in UI and API test automation tools like cypress, cucumber, postman, pytest.
Conduct different testing types and adapt them to the project need: functional testing, regression testing, API testing, integration testing, security testing, performance testing, contract testing. * Implement and maintain automated testing framework for UI, API and AI/ML solutions. * Proficiency in UI and API test automation tools like cypress, cucumber, postman, pytest.
Familiarity with WhatsApp Business API, web-socket or webhook architectures, and common live-chat SDKs.
Familiarity with WhatsApp Business API, web-socket or webhook architectures, and common live-chat SDKs.
This includes native integrations with BI tools, CRMs, AI platforms, and LLMs, as well as expanding and owning our API platform. Own and evolve the GWI Data API by defining key use cases, prioritising the roadmap, maintaining comprehensive documentation, supporting partner integrations, and driving adoption across customers and third-party developers. API Scale Leadership - Proven track record building and scaling public APIs to drive $100 M+ in ARR, from roadmap through adoption and monetization. API Product Leadership - You own APIs end to end, from roadmap to developer experience, and know how to scale adoption and usage.
This includes native integrations with BI tools, CRMs, AI platforms, and LLMs, as well as expanding and owning our API platform. Own and evolve the GWI Data API by defining key use cases, prioritising the roadmap, maintaining comprehensive documentation, supporting partner integrations, and driving adoption across customers and third-party developers. API Scale Leadership - Proven track record building and scaling public APIs to drive $100 M+ in ARR, from roadmap through adoption and monetization. API Product Leadership - You own APIs end to end, from roadmap to developer experience, and know how to scale adoption and usage.
From refining API design to optimising performance and observability, youll be the driving force behind the systems that keep Onetrace running smoothly and growing fast. * RESTful API design and implementation
From refining API design to optimising performance and observability, youll be the driving force behind the systems that keep Onetrace running smoothly and growing fast. * RESTful API design and implementation
Leverage knowledge of data analysis, API documentation and payment processing manage, coach, and develop a team of hybrid L1 and L2 associates
Leverage knowledge of data analysis, API documentation and payment processing manage, coach, and develop a team of hybrid L1 and L2 associates
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Crucially, the ability to understand how these tools integrate (data flow, API concepts) is essential, even if they're not building the integrations from scratch.
Crucially, the ability to understand how these tools integrate (data flow, API concepts) is essential, even if they're not building the integrations from scratch.
Location : London ? Office requirement : Hybrid, 1-2 days per week in office Employment type : Permanent - At GWI we're always looking for extraordinary people who thrive on making an extraordinary impact. Right now we're looking for a Technical Product Manager to play a key role in our calculations squad of the Platform Product team in London. If that's you, and making a difference gets you out of bed in the morning, keep reading. It could be the start of something, well, extraordinary. Sounds great, what will I be doing? As our Technical Product Manager you'll sit within the Calculations squad of the Platform Product team, who are responsible for GWI's high-performance computation engine that processes billions of data points to deliver fast, accurate, and scalable insights. This system sits at the core of our platform, powering in-memory data processing across all
Location : London ? Office requirement : Hybrid, 1-2 days per week in office Employment type : Permanent - At GWI we're always looking for extraordinary people who thrive on making an extraordinary impact. Right now we're looking for a Technical Product Manager to play a key role in our calculations squad of the Platform Product team in London. If that's you, and making a difference gets you out of bed in the morning, keep reading. It could be the start of something, well, extraordinary. Sounds great, what will I be doing? As our Technical Product Manager you'll sit within the Calculations squad of the Platform Product team, who are responsible for GWI's high-performance computation engine that processes billions of data points to deliver fast, accurate, and scalable insights. This system sits at the core of our platform, powering in-memory data processing across all
Any company can tell you about how they are a multi award winning, market leading business and yes, we are both of those things in the world of IoT connectivity! But were more than that. Our mission? To make IoT management a breeze for any device, anywhere. With over 10 million IoT subscriptions active in 165 countries and direct partnerships with 50 mobile networks, we connect you to more than 750 networks worldwide, delivering unmatched value across the IoT connectivity chain. Innovation is in our DNA, and we have an insatiable hunger to wow! While we may not always get it right, our drive to collaborate, innovate, and achieve top-notch customer satisfaction never wavers. We offer industry expertise, stellar service support, and the most flexible, resilient, and secure connectivity solutions on the market.
Any company can tell you about how they are a multi award winning, market leading business and yes, we are both of those things in the world of IoT connectivity! But were more than that. Our mission? To make IoT management a breeze for any device, anywhere. With over 10 million IoT subscriptions active in 165 countries and direct partnerships with 50 mobile networks, we connect you to more than 750 networks worldwide, delivering unmatched value across the IoT connectivity chain. Innovation is in our DNA, and we have an insatiable hunger to wow! While we may not always get it right, our drive to collaborate, innovate, and achieve top-notch customer satisfaction never wavers. We offer industry expertise, stellar service support, and the most flexible, resilient, and secure connectivity solutions on the market.
About Jaja - Our Mission: Empowering our customers to buy, borrow, and builddriven by technology, fuelled by data, and built for the future. Our Company Values: Care Deeply, Adapt & Thrive, Challenge Everything, Go for It! Own It, Make It Simple. Jaja is an innovative UK-based consumer finance business, initially launching a digital credit card in 2018, with a pipeline of consumer finance solutions in development. With backing from major private equity funds, Jaja has grown rapidly, recently acquiring a £530m credit card portfolio from the Bank of Ireland and launching a significant partnership with Asda in the UK. We are on a mission to redefine the consumer finance experience and liberate customers from unnecessary complexity, wasted time, and frustration. Or as we say it, Make It Simple . We aim to delight our customers by making their experience simpler, more enjo
About Jaja - Our Mission: Empowering our customers to buy, borrow, and builddriven by technology, fuelled by data, and built for the future. Our Company Values: Care Deeply, Adapt & Thrive, Challenge Everything, Go for It! Own It, Make It Simple. Jaja is an innovative UK-based consumer finance business, initially launching a digital credit card in 2018, with a pipeline of consumer finance solutions in development. With backing from major private equity funds, Jaja has grown rapidly, recently acquiring a £530m credit card portfolio from the Bank of Ireland and launching a significant partnership with Asda in the UK. We are on a mission to redefine the consumer finance experience and liberate customers from unnecessary complexity, wasted time, and frustration. Or as we say it, Make It Simple . We aim to delight our customers by making their experience simpler, more enjo
London, UK - Full time - 2025-09-08 - Posted 19 Days Ago - 313239 - 10 - The Quality Engineering team works in partnership with other Technology Functions and the Business to ensure quality delivery of our products. The team works in an Agile environment and is located globally. The team is independent in driving all decisions and is responsible for continuously improving customer experience, revenue growth and operations enablement through quick turn-around of development of our products with high quality. * Develop automation scripts that comply with organizational standards, creating reliable, reusable, and maintainable automated regression suites and test harnesses. * Utilize various tools and frameworks to create automation scripts with high-quality code to simplify testing scenarios. * Design and develop test plans and test cases based on functional and design s
London, UK - Full time - 2025-09-08 - Posted 19 Days Ago - 313239 - 10 - The Quality Engineering team works in partnership with other Technology Functions and the Business to ensure quality delivery of our products. The team works in an Agile environment and is located globally. The team is independent in driving all decisions and is responsible for continuously improving customer experience, revenue growth and operations enablement through quick turn-around of development of our products with high quality. * Develop automation scripts that comply with organizational standards, creating reliable, reusable, and maintainable automated regression suites and test harnesses. * Utilize various tools and frameworks to create automation scripts with high-quality code to simplify testing scenarios. * Design and develop test plans and test cases based on functional and design s
Related Jobs
Locations
- The City, City (EC3)
- Southwark
- White Hill
- The City, City (EC2)
- Duxford
- Felbridge
- Lambeth
- Moorgate
- Shoreditch
- Canary Wharf
- City of London
- Cambridge
- Central London
- West End
- Bexhill-On-Sea
- South East London
- East London
- North West London
- Reading
- South West London
- London
- Berkshire
- Cambridgeshire
- Surrey
- East Sussex
- West Sussex
- Essex
- Hertfordshire
- Kent
- Hampshire
- South East
- East Anglia