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7 Contract API jobs in Hemel Hempstead + 20 miles
Experience in cloud based and API driven architectures.
Experience in cloud based and API driven architectures.
PREMIUM
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Performance and Monitoring Engineer
Performance and Monitoring Engineer
Solus Accident Repair Centres
North London, London
GBP £40,000.00/Yr. - GBP £50,000.00/Yr.
Excellent understanding of cloud performance, IaaS/PaaS, networking fundamentals, API performance and capacity modelling * Confident scripting and automation skills (PowerShell, Azure Automation, Graph API)
Excellent understanding of cloud performance, IaaS/PaaS, networking fundamentals, API performance and capacity modelling * Confident scripting and automation skills (PowerShell, Azure Automation, Graph API)
NEW
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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
Software Engineering Manager - Tooling and Optimisations
Software Engineering Manager - Tooling and Optimisations
Centrica - CHP
Windsor, Berkshire
Competitive + Benefits
Support data-driven and API-centric integration design * Expertise in API management, integration patterns, event-driven architecture and microservices.
Support data-driven and API-centric integration design * Expertise in API management, integration patterns, event-driven architecture and microservices.
PREMIUM
Champion the use of strategic platforms and shared integration/API frameworks.
Champion the use of strategic platforms and shared integration/API frameworks.
PREMIUM
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Senior Electronics Development Engineer
Senior Electronics Development Engineer
X-Ray Innovation Ltd
Tring (HP23)
From £55,000 to £75,000 per annum depending on qualifications & experi
API development/Hardware abstraction layers for Win32/Linux IOCTL
API development/Hardware abstraction layers for Win32/Linux IOCTL
Experience with streaming platforms (Kafka, EventHub) and API-based integration.
Experience with streaming platforms (Kafka, EventHub) and API-based integration.
FEATURED
121 exact matches jobs are outside your preferred location
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Principle Java Engineer
Principle Java Engineer
Profile 29
South East London (SE1)
From £70,000 to £90,000 per annum + benefits + hybrid (or remote) work
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
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Senior Product Engineer, Full Stack - Energy
Senior Product Engineer, Full Stack - Energy
MFK Recruitment Ltd
Piccadilly, Central London (W1), W1S 4NS
From £70,000 to £95,000 per annum
£70,000 to £95,000 - Permanent - London, hybrid - The opportunity - Our client is hiring a Senior Product Engineer, Full Stack, to help build the next generation of customer-facing software in the energy market. Operating in a complex, high-value sector, the business is combining technology, data, and product thinking to modernise an area of the energy industry that has historically been underserved by great software. We have already placed 3 people into the business and are pleased to be supporting them again on this important hire. This is a genuinely exciting opportunity for a frontend-strong engineer who wants real ownership, autonomy, and the chance to build products from scratch. They are looking for someone with strong React and TypeScript capability, alongside solid backend exposure across Python, APIs, and databases.
£70,000 to £95,000 - Permanent - London, hybrid - The opportunity - Our client is hiring a Senior Product Engineer, Full Stack, to help build the next generation of customer-facing software in the energy market. Operating in a complex, high-value sector, the business is combining technology, data, and product thinking to modernise an area of the energy industry that has historically been underserved by great software. We have already placed 3 people into the business and are pleased to be supporting them again on this important hire. This is a genuinely exciting opportunity for a frontend-strong engineer who wants real ownership, autonomy, and the chance to build products from scratch. They are looking for someone with strong React and TypeScript capability, alongside solid backend exposure across Python, APIs, and databases.
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AWS (Lambda, Fargate, API Gateway, AppSync)
AWS (Lambda, Fargate, API Gateway, AppSync)
FEATURED
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QA Engineer / Junior Test Analyst - 6 month FTC
QA Engineer / Junior Test Analyst - 6 month FTC
Ashdown Group
Bishop's Stortford, Hertfordshire, CM23
£30,000
Performing functional, integration, API and exploratory testing across web-based applications
Performing functional, integration, API and exploratory testing across web-based applications
FEATURED
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As part of this journey, they're looking for an Engineering Manager to build and lead a brand-new engineering function focused on developing scalable Python services, API architecture, and large-scale data integrations that enable AI products across the organisation. * Experience delivering API-first platforms and distributed systems.
As part of this journey, they're looking for an Engineering Manager to build and lead a brand-new engineering function focused on developing scalable Python services, API architecture, and large-scale data integrations that enable AI products across the organisation. * Experience delivering API-first platforms and distributed systems.
FEATURED
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Good understanding of backend engineering and API development
Good understanding of backend engineering and API development
PREMIUM
API development experience, ideally with FastAPI or similar frameworks
API development experience, ideally with FastAPI or similar frameworks
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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
NEWPREMIUM
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As a global leader in application and API security, F5 is expanding its capabilities into AI Runtime Security, ensuring organizations can safely operationalize Generative AI across critical business workflows.
As a global leader in application and API security, F5 is expanding its capabilities into AI Runtime Security, ensuring organizations can safely operationalize Generative AI across critical business workflows.
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Show technical leadership, by identifying best practices for API integration and assisting customers with their implementation
Show technical leadership, by identifying best practices for API integration and assisting customers with their implementation
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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.
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Programming Skills: Proficiency in Python for data manipulation and scripting; familiarity with API integrations. * Experience architecting or implementing system automations and integrations via iPaas or API gateways.
Programming Skills: Proficiency in Python for data manipulation and scripting; familiarity with API integrations. * Experience architecting or implementing system automations and integrations via iPaas or API gateways.
NEW
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Accountability for a portion of the ~150 site External Manufacturing (EM) network, which covers Medicines and Vaccines Large Molecule Drug Substance and Drug Product, Medicine Small Molecule API and secondary, including newer product types such as Antibody Drug Conjugates and Oligonucleotides. * Engineering experience in small molecule primary and secondary, including API (Active Pharmaceutical Ingredient) /high toxicity API manufacture.
Accountability for a portion of the ~150 site External Manufacturing (EM) network, which covers Medicines and Vaccines Large Molecule Drug Substance and Drug Product, Medicine Small Molecule API and secondary, including newer product types such as Antibody Drug Conjugates and Oligonucleotides. * Engineering experience in small molecule primary and secondary, including API (Active Pharmaceutical Ingredient) /high toxicity API manufacture.
Deliver Value-Based Technical Messaging: Fluent in both 'API' and 'ROI,' you will translate working prototypes into solid business cases. * Strong Data Engineering Skills & Builder Credibility: Experience working with SQL, Python and building data pipelines and API integrations.
Deliver Value-Based Technical Messaging: Fluent in both 'API' and 'ROI,' you will translate working prototypes into solid business cases. * Strong Data Engineering Skills & Builder Credibility: Experience working with SQL, Python and building data pipelines and API integrations.
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Python in one hand, infrastructure-as-code in the other? Come automate a plant at serious scale. Our client is a market leader in the financial and trading space, right in the middle of a DevOps transformation. You'll build the real-time APIs and back-end integrations that turn desired state into actual state across a huge, highly automated F5 and Infoblox environment making infrastructure-on-demand a reality. Ideal for a Python developer who's automated a network, compute or middleware plant (Ansible modules or Terraform providers a real plus) or a network/compute engineer who's been scripting low-level config and wants to go all-in on automation. You'll * Build automation for certification and plant management with Python and Ansible * Extend and integrate APIs to deliver infrastructure-on-demand * Automate lab-based testing for new hardware and software certification
Python in one hand, infrastructure-as-code in the other? Come automate a plant at serious scale. Our client is a market leader in the financial and trading space, right in the middle of a DevOps transformation. You'll build the real-time APIs and back-end integrations that turn desired state into actual state across a huge, highly automated F5 and Infoblox environment making infrastructure-on-demand a reality. Ideal for a Python developer who's automated a network, compute or middleware plant (Ansible modules or Terraform providers a real plus) or a network/compute engineer who's been scripting low-level config and wants to go all-in on automation. You'll * Build automation for certification and plant management with Python and Ansible * Extend and integrate APIs to deliver infrastructure-on-demand * Automate lab-based testing for new hardware and software certification
NEW
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Job Description - Meet The Team - As a member of Talos, you will support cutting-edge detection and mitigation technologies. You will work towards keeping yourself abreast of the latest industry threat creation and defense techniques, and you will develop proof-of-concept solutions, provide domain expertise, and guide implementation to facilitate a successful security posture in Ciscos products. If you enjoy vulnerability research, crash analysis, reverse engineering, and researching new techniques and writing tools to automate these tasks, this job is for you! Your Impact - Essential Duties and Responsibilities * Conduct security research, including the development of tools for vulnerability analysis and mitigation. * Develop static and run-time analysis tools to identify root causes and input conditions related to vulnerabilities.
Job Description - Meet The Team - As a member of Talos, you will support cutting-edge detection and mitigation technologies. You will work towards keeping yourself abreast of the latest industry threat creation and defense techniques, and you will develop proof-of-concept solutions, provide domain expertise, and guide implementation to facilitate a successful security posture in Ciscos products. If you enjoy vulnerability research, crash analysis, reverse engineering, and researching new techniques and writing tools to automate these tasks, this job is for you! Your Impact - Essential Duties and Responsibilities * Conduct security research, including the development of tools for vulnerability analysis and mitigation. * Develop static and run-time analysis tools to identify root causes and input conditions related to vulnerabilities.
Implementation and delivery of new server-side components, microservices, Web APIs, and enhancements to the BestX product. * Exhibiting superior skills across modern Agile engineering, cloud-native architectures, server-side development, and database design. * Developing a strong understanding of Transaction Cost Analysis (TCA) and the key benchmarks required for MiFID II / MiFIR. * Maintaining and enhancing core applications while influencing and shaping technology and architectural decisions. * Taking full ownership of tasks and seeing them through to completion with a strong sense of accountability and quality. * Establishing and enforcing best practices, including clean code, robust design patterns, and maintainable system architectures. * Acting as a catalyst for change, driving continuous improvement and modernisation across the engineering organisation.
Implementation and delivery of new server-side components, microservices, Web APIs, and enhancements to the BestX product. * Exhibiting superior skills across modern Agile engineering, cloud-native architectures, server-side development, and database design. * Developing a strong understanding of Transaction Cost Analysis (TCA) and the key benchmarks required for MiFID II / MiFIR. * Maintaining and enhancing core applications while influencing and shaping technology and architectural decisions. * Taking full ownership of tasks and seeing them through to completion with a strong sense of accountability and quality. * Establishing and enforcing best practices, including clean code, robust design patterns, and maintainable system architectures. * Acting as a catalyst for change, driving continuous improvement and modernisation across the engineering organisation.
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At Moody's, we unite the brightest minds to turn todays risks into tomorrows opportunities. We do this by striving to create an inclusive environment where everyone feels welcome to be who they arewith the freedom to exchange ideas, think innovatively, and listen to each other and customers in meaningful ways. Moodys is transforming how the world sees risk. As a global leader in ratings and integrated risk assessment, were advancing AI to move from insight to actionenabling intelligence that not only understands complexity but responds to it. We decode risk to unlock opportunity, helping our clients navigate uncertainty with clarity, speed, and confidence. If you are excited about this opportunity but do not meet every single requirement, please apply! You still may be a great fit for this role or other open roles.
At Moody's, we unite the brightest minds to turn todays risks into tomorrows opportunities. We do this by striving to create an inclusive environment where everyone feels welcome to be who they arewith the freedom to exchange ideas, think innovatively, and listen to each other and customers in meaningful ways. Moodys is transforming how the world sees risk. As a global leader in ratings and integrated risk assessment, were advancing AI to move from insight to actionenabling intelligence that not only understands complexity but responds to it. We decode risk to unlock opportunity, helping our clients navigate uncertainty with clarity, speed, and confidence. If you are excited about this opportunity but do not meet every single requirement, please apply! You still may be a great fit for this role or other open roles.