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26 Contract API jobs in Hertfordshire + 20 miles
159 exact matches jobs are outside your preferred location
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Join a global financial services leader at the forefront of electronic trading infrastructure. They are looking for a skilled Python Software Engineer to contribute to cutting-edge automation tools powering low-latency trading systems. This is a Senior engineering role within a high-impact team shaping infrastructure for global markets. What You'll Do * Design, build, and maintain automation tools supporting electronic trading infrastructure * Take ownership of components from design to deployment * Collaborate across teams in a fast-paced, regulated environment?? Tech You'll Work With * Core Python with OOP, data structures, and regex * Linux CLI, debugging with tcpdump, strace, etc. * Git, Jenkins, TDD, and CI pipelines * RESTful APIs, Ansible (bonus), and even Golang (bonus)? What We're Looking For * Strong Python development skills and testing experience
Join a global financial services leader at the forefront of electronic trading infrastructure. They are looking for a skilled Python Software Engineer to contribute to cutting-edge automation tools powering low-latency trading systems. This is a Senior engineering role within a high-impact team shaping infrastructure for global markets. What You'll Do * Design, build, and maintain automation tools supporting electronic trading infrastructure * Take ownership of components from design to deployment * Collaborate across teams in a fast-paced, regulated environment?? Tech You'll Work With * Core Python with OOP, data structures, and regex * Linux CLI, debugging with tcpdump, strace, etc. * Git, Jenkins, TDD, and CI pipelines * RESTful APIs, Ansible (bonus), and even Golang (bonus)? What We're Looking For * Strong Python development skills and testing experience
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Hybrid Python Developer – 9-12 Month Contract (Outside IR35)
Hybrid Python Developer – 9-12 Month Contract (Outside IR35)
Halian Technology Limited
RG1, Reading
From £375 to £450 per day
HybridPython Developer 9-12 Month Contract (Outside IR35) * Location: Hybrid (1 day a week in London, UK) * Contract Duration: 9-12 months * Rate: £375-£450 per day (Outside IR35) Exciting Projects: Work on innovative digital solutions in a start-up environment. Flexible Working: Enjoy a hybrid role with one day a week in London. Collaborative Culture: Be part of a talented, supportive team that values your input. We are recruiting on behalf of an innovative Insurance company looking for experienced Python Developers. This is an excellent opportunity for experienced developers eager to work on exciting projects in a dynamic and fast-paced environment. Our client is a rapidly expanding start-up backed by a major insurer and specialising in pay-as-you-go car insurance growing quicklywith over a million customers.
HybridPython Developer 9-12 Month Contract (Outside IR35) * Location: Hybrid (1 day a week in London, UK) * Contract Duration: 9-12 months * Rate: £375-£450 per day (Outside IR35) Exciting Projects: Work on innovative digital solutions in a start-up environment. Flexible Working: Enjoy a hybrid role with one day a week in London. Collaborative Culture: Be part of a talented, supportive team that values your input. We are recruiting on behalf of an innovative Insurance company looking for experienced Python Developers. This is an excellent opportunity for experienced developers eager to work on exciting projects in a dynamic and fast-paced environment. Our client is a rapidly expanding start-up backed by a major insurer and specialising in pay-as-you-go car insurance growing quicklywith over a million customers.
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Lead SAP Analytics Cloud (SAC) Consultant
Lead SAP Analytics Cloud (SAC) Consultant
LA International Computer Consultants Ltd
London
£600 - £650 per day
6 Month contract initially - Based: Hybrid/London (Max - 3 days p/w onsite) Rate: £600 - £650 p/d (via Umbrella company) We have a great opportunity with a world leading organisation where you will be provided with all of the support and development to succeed. A progressive organisation where you can really make a difference. We have a great opportunity for a Lead SAP Analytics Cloud (SAC) Consultant to join the team. We are seeking an experienced and strategic SAP Professional to lead the design, implementation, and optimization of solutions using SAP Analytics Cloud (SAC). This role will be responsible for managing and implementing cloud data integration, analytics strategy, and ensuring business insights are delivered effectively across the organization. It is also expected the candidate should have fair knowledge of SAP S4/HANNA Professional Services processes.
6 Month contract initially - Based: Hybrid/London (Max - 3 days p/w onsite) Rate: £600 - £650 p/d (via Umbrella company) We have a great opportunity with a world leading organisation where you will be provided with all of the support and development to succeed. A progressive organisation where you can really make a difference. We have a great opportunity for a Lead SAP Analytics Cloud (SAC) Consultant to join the team. We are seeking an experienced and strategic SAP Professional to lead the design, implementation, and optimization of solutions using SAP Analytics Cloud (SAC). This role will be responsible for managing and implementing cloud data integration, analytics strategy, and ensuring business insights are delivered effectively across the organization. It is also expected the candidate should have fair knowledge of SAP S4/HANNA Professional Services processes.
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We're looking for an experienced Engineering Manager to oversee the technical migration of a Product Information Management (PIM) system - namely STIBO STEP - from an on-premise setup to a SaaS solution. This role requires close collaboration with internal product and engineering teams, as well as with external partners. * 10+ years in software engineering and delivery, with at least 5 years in leadership, principal, or managerial roles. * Strong expertise in PIM/MDM platforms, with hands-on experience in STIBO STEP essential. * Proven track record migrating enterprise applications to SaaS, ideally within large-scale, complex environments. * Languages: Java 17+ (Java 21 preferred) * Frameworks: Micronaut (preferred), Spring Boot * Testing: JUnit, Mockito * Build Tools: Gradle * Data & Messaging: Kafka, MongoDB * APIs: GraphQL Federation, REST
We're looking for an experienced Engineering Manager to oversee the technical migration of a Product Information Management (PIM) system - namely STIBO STEP - from an on-premise setup to a SaaS solution. This role requires close collaboration with internal product and engineering teams, as well as with external partners. * 10+ years in software engineering and delivery, with at least 5 years in leadership, principal, or managerial roles. * Strong expertise in PIM/MDM platforms, with hands-on experience in STIBO STEP essential. * Proven track record migrating enterprise applications to SaaS, ideally within large-scale, complex environments. * Languages: Java 17+ (Java 21 preferred) * Frameworks: Micronaut (preferred), Spring Boot * Testing: JUnit, Mockito * Build Tools: Gradle * Data & Messaging: Kafka, MongoDB * APIs: GraphQL Federation, REST
Agile Project Manager, ideally with expereince of Salesforce Education Cloud, or similar SaaS platforms is required to support our London University client to deliver the implementation of Salesforce Education Cloud and associated systems. The Agile Project Manager will be tasked with leading the day-to-day management of Salesforce Education Cloud implementation, leading the Agile delivery of the Salesforce Education Cloud platform and associated initiatives (UX, AI tools, dashboards). Essential Experience * Experience of managing large-scale digital transformation or CRM/ERP implementations. * Strong understanding of delivery and integration of Salesforce (ideally Education Cloud) or similar SaaS platforms. * Experience working with multiple suppliers in a complex stakeholder environment. * Strong stakeholder management, particularly in Higher Education or similar pu
Agile Project Manager, ideally with expereince of Salesforce Education Cloud, or similar SaaS platforms is required to support our London University client to deliver the implementation of Salesforce Education Cloud and associated systems. The Agile Project Manager will be tasked with leading the day-to-day management of Salesforce Education Cloud implementation, leading the Agile delivery of the Salesforce Education Cloud platform and associated initiatives (UX, AI tools, dashboards). Essential Experience * Experience of managing large-scale digital transformation or CRM/ERP implementations. * Strong understanding of delivery and integration of Salesforce (ideally Education Cloud) or similar SaaS platforms. * Experience working with multiple suppliers in a complex stakeholder environment. * Strong stakeholder management, particularly in Higher Education or similar pu
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Rest API's and Microservice architecture * Restful API Design and development fundamentals * Good SQL knowledge
Rest API's and Microservice architecture * Restful API Design and development fundamentals * Good SQL knowledge
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Rest API's and Microservice architecture * Restful API Design and development fundamentals * Good SQL knowledge
Rest API's and Microservice architecture * Restful API Design and development fundamentals * Good SQL knowledge
Application Security (secure coding, API security, SAST/DAST, WAF integration).
Application Security (secure coding, API security, SAST/DAST, WAF integration).
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Work closely with the team to develop new features, such as better interpretation layers, enhanced data decoding, and improved API coverage for various blockchain data.
Work closely with the team to develop new features, such as better interpretation layers, enhanced data decoding, and improved API coverage for various blockchain data.
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At BNY, our culture empowers you to grow and succeed. As a leading global financial services company at the center of the worlds financial system we touch nearly 20% of the worlds investible assets. Every day around the globe, our 50,000+ employees bring the power of their perspective to the table to create solutions with our clients that benefit businesses, communities and people everywhere. We continue to be a leader in the industry, awarded as a top home for innovators and for creating an inclusive workplace. Through our unique ideas and talents, together we help make money work for the world. This is what #LifeAtBNY is all about. Were seeking a future team member for the role of Business Analyst to join our Trustee & Depositary team. This role is located in London - Hybrid (4 days in office).
At BNY, our culture empowers you to grow and succeed. As a leading global financial services company at the center of the worlds financial system we touch nearly 20% of the worlds investible assets. Every day around the globe, our 50,000+ employees bring the power of their perspective to the table to create solutions with our clients that benefit businesses, communities and people everywhere. We continue to be a leader in the industry, awarded as a top home for innovators and for creating an inclusive workplace. Through our unique ideas and talents, together we help make money work for the world. This is what #LifeAtBNY is all about. Were seeking a future team member for the role of Business Analyst to join our Trustee & Depositary team. This role is located in London - Hybrid (4 days in office).
FIEQ Product, BNY London - At BNY, our culture allows us to run our company better and enables employees growth and success. As a leading global financial services company at the heart of the global financial system, we influence nearly 20% of the worlds investible assets. Every day, our teams harness cutting-edge AI and breakthrough technologies to collaborate with clients, driving transformative solutions that redefine industries and uplift communities worldwide. Recognized as a top destination for innovators and champions of inclusion, BNY is where bold ideas meet advanced technology and exceptional talent. Together, we power the future of finance and this is what #LifeAtBNY is all about. Join us and be part of something extraordinary. The Markets business helps our clients formulate, implement and operationalize their investment strategies.
FIEQ Product, BNY London - At BNY, our culture allows us to run our company better and enables employees growth and success. As a leading global financial services company at the heart of the global financial system, we influence nearly 20% of the worlds investible assets. Every day, our teams harness cutting-edge AI and breakthrough technologies to collaborate with clients, driving transformative solutions that redefine industries and uplift communities worldwide. Recognized as a top destination for innovators and champions of inclusion, BNY is where bold ideas meet advanced technology and exceptional talent. Together, we power the future of finance and this is what #LifeAtBNY is all about. Join us and be part of something extraordinary. The Markets business helps our clients formulate, implement and operationalize their investment strategies.
Define and document integration standards, including API strategies, event schemas, and interface contracts to enable decoupled, reusable services * Strong proficiency in API design (REST/GraphQL), microservices architecture, and middleware solution
Define and document integration standards, including API strategies, event schemas, and interface contracts to enable decoupled, reusable services * Strong proficiency in API design (REST/GraphQL), microservices architecture, and middleware solution
Our API-first platform provides fully automated validators, staking & DeFi protocols access, and comprehensive data and commission management.
Our API-first platform provides fully automated validators, staking & DeFi protocols access, and comprehensive data and commission management.
Node.js for services and API development
Node.js for services and API development
API testing with Postman or similar tools
API testing with Postman or similar tools
Role Confluent Solution Architect - Technology Apache Kafka, Confluent Platform, Stream Processing - Location UK - Job Description - Today, the corporate landscape is dynamic and the world ahead is full of possibilities! None of the amazing things we do at Infosys would be possible without an equally amazing culture, the environment where ideas can flourish and where you are empowered to move forward as far as your ideas will take you. At Infosys, we assure that your career will never stand still, we will inspire you to build whats next and we will navigate further together. Our journey of learnability, values and trusted relationships with our clients continue to be the cornerstones of our organization and these values are upheld only because of our people. Your role - As a Confluent Solution Architect, you will lead the design and architecture of enterprise-grade st
Role Confluent Solution Architect - Technology Apache Kafka, Confluent Platform, Stream Processing - Location UK - Job Description - Today, the corporate landscape is dynamic and the world ahead is full of possibilities! None of the amazing things we do at Infosys would be possible without an equally amazing culture, the environment where ideas can flourish and where you are empowered to move forward as far as your ideas will take you. At Infosys, we assure that your career will never stand still, we will inspire you to build whats next and we will navigate further together. Our journey of learnability, values and trusted relationships with our clients continue to be the cornerstones of our organization and these values are upheld only because of our people. Your role - As a Confluent Solution Architect, you will lead the design and architecture of enterprise-grade st
Strong technical skills: HTML, CSS, basic JavaScript, API integrations, Workato and troubleshooting.
Strong technical skills: HTML, CSS, basic JavaScript, API integrations, Workato and troubleshooting.
Oversee API integration strategy, including duplication checks, system alignment, and end-to-end flow * Strong business acumen with a clear understanding of technical API integration principles and tools
Oversee API integration strategy, including duplication checks, system alignment, and end-to-end flow * Strong business acumen with a clear understanding of technical API integration principles and tools
AWS Services - including Lambda (Java), Secrets Manager, API Gateways
AWS Services - including Lambda (Java), Secrets Manager, API Gateways
Working with top developers from around the world, helping to implement Kong Products and Technologies, including our API Gateway, AI Gateway and ServiceMesh solutions - Kong is THE cloud native API platform with the fastest, most adopted API gateway in the world (over 300m downloads!). As the innovation leader of cloud API technologies, Kong is on a mission to enable companies around the world to become "API-first" and securely accelerate AI adoption. 83% of web traffic today is API calls!
Working with top developers from around the world, helping to implement Kong Products and Technologies, including our API Gateway, AI Gateway and ServiceMesh solutions - Kong is THE cloud native API platform with the fastest, most adopted API gateway in the world (over 300m downloads!). As the innovation leader of cloud API technologies, Kong is on a mission to enable companies around the world to become "API-first" and securely accelerate AI adoption. 83% of web traffic today is API calls!
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.
[Nice to have] Experience in fintech, payments, or API-first companies
[Nice to have] Experience in fintech, payments, or API-first companies
Basic understanding of backend systems (e.g. Node.js, AWS) to debug issues and contribute to API design discussions
Basic understanding of backend systems (e.g. Node.js, AWS) to debug issues and contribute to API design discussions
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Strong understanding of API design
Strong understanding of API design
Youll go far beyond traditional API docs, creating user-friendly guides, help articles, and blog posts that make our features shine and empower our community.
Youll go far beyond traditional API docs, creating user-friendly guides, help articles, and blog posts that make our features shine and empower our community.