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Join Us as a Senior Software Development Engineer in Test (SDET)! Overview - We are looking for a Software Development Engineer in Test (SDET) or automation tester who comes from a Java Software Development background. The role is to assist in the development of the new Index platform for the FTSE-Russell Index business of the London Stock Exchange Group (LSEG). The Index Platform team performs the calculation, maintenance and distribution of Index products. You will be working on innovative technologies with a team of engineers to implement solutions which support the strategic growth of the Index business. You will be involved in the development of test tools and solutions as well as new test frameworks, starting from a blank slate in some cases, to help ensure the quality of a greenfield application build.
Join Us as a Senior Software Development Engineer in Test (SDET)! Overview - We are looking for a Software Development Engineer in Test (SDET) or automation tester who comes from a Java Software Development background. The role is to assist in the development of the new Index platform for the FTSE-Russell Index business of the London Stock Exchange Group (LSEG). The Index Platform team performs the calculation, maintenance and distribution of Index products. You will be working on innovative technologies with a team of engineers to implement solutions which support the strategic growth of the Index business. You will be involved in the development of test tools and solutions as well as new test frameworks, starting from a blank slate in some cases, to help ensure the quality of a greenfield application build.
FTSE Russell is a leading global provider of financial services, specializing in the creation and management of indexes, data, and analytic solutions. A subsidiary of the London Stock Exchange Group (LSEG), FTSE Russell supports investors worldwide in making informed decisions across asset classes, investment strategies, and market segments. Its products are trusted by institutional and retail investors, asset managers, and pension funds to benchmark performance, build investment portfolios, and manage risk. With a reputation for innovation, transparency, and robust governance, FTSE Russell plays a critical role in shaping global financial markets. FTSE Russell is seeking a hands-on dynamic software development leader to drive a team of software engineers building robust equity index capabilities and indexes.
FTSE Russell is a leading global provider of financial services, specializing in the creation and management of indexes, data, and analytic solutions. A subsidiary of the London Stock Exchange Group (LSEG), FTSE Russell supports investors worldwide in making informed decisions across asset classes, investment strategies, and market segments. Its products are trusted by institutional and retail investors, asset managers, and pension funds to benchmark performance, build investment portfolios, and manage risk. With a reputation for innovation, transparency, and robust governance, FTSE Russell plays a critical role in shaping global financial markets. FTSE Russell is seeking a hands-on dynamic software development leader to drive a team of software engineers building robust equity index capabilities and indexes.
The LSEG DevSecOps Engineering team inside the cyber security division is looking for Senior Software Engineers to build tools and automations to help secure software development for thousands of developers across the group. You will be working as part of a geographically distributed remote team comprising of security engineers and software engineers. Our teams mission is to allow engineers to embed security best practices frictionlessly as part of their day to day work. * Deep understanding of cyber security principles, secure software development, and threat modeling * Experience conducting security assessments, code reviews, and vulnerability management across diverse technology stacks * Experience in building full-stack products (web applications, APIs, CI tooling or low-level software) * Hands-on experience with cloud technologies (AWS, GCP, Azure) and containers
The LSEG DevSecOps Engineering team inside the cyber security division is looking for Senior Software Engineers to build tools and automations to help secure software development for thousands of developers across the group. You will be working as part of a geographically distributed remote team comprising of security engineers and software engineers. Our teams mission is to allow engineers to embed security best practices frictionlessly as part of their day to day work. * Deep understanding of cyber security principles, secure software development, and threat modeling * Experience conducting security assessments, code reviews, and vulnerability management across diverse technology stacks * Experience in building full-stack products (web applications, APIs, CI tooling or low-level software) * Hands-on experience with cloud technologies (AWS, GCP, Azure) and containers
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About the role - We are looking for an experienced Search Relevance Engineer to help shape and optimise the search experience for millions of users. This role sits at the intersection of engineering and data science, focusing on search relevancy, ranking models, and query understanding. You will work closely with Product, Engineering, DevOps, and Data teams to design and deliver strategic projects that directly impact customer experience. What youll be doing * Fine-tuning keyword search (including BM25), query expansion, and retrieval methods (ANN dense retrieval, sparse retrieval, semantic search). * Applying techniques such as entity/name density recognition, query understanding, query rescorers, and learning-to-rank models. * Experimenting with embeddings and vector search to improve personalisation and semantic relevance.
About the role - We are looking for an experienced Search Relevance Engineer to help shape and optimise the search experience for millions of users. This role sits at the intersection of engineering and data science, focusing on search relevancy, ranking models, and query understanding. You will work closely with Product, Engineering, DevOps, and Data teams to design and deliver strategic projects that directly impact customer experience. What youll be doing * Fine-tuning keyword search (including BM25), query expansion, and retrieval methods (ANN dense retrieval, sparse retrieval, semantic search). * Applying techniques such as entity/name density recognition, query understanding, query rescorers, and learning-to-rank models. * Experimenting with embeddings and vector search to improve personalisation and semantic relevance.
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Role Full Stack Developer - Location - London (Remote) Salary - £70K - £85K - Role Type Permanent - Myn is an AI driven marketplace that connects the candidates, clients and recruiters. Myn collaborates with leading employers to offer exclusive, carefully matched permanent positions. Overview - Are you a talented Full Stack Developer eager to make an immediate impact on exciting projects? Our client is seeking an experienced Full Stack development professional for a hybrid position to be based in Central London, but operating remotely * Design and implement robust web applications using cutting-edge technologies and frameworks. * Collaborate with cross-functional teams to drive the full development lifecycle, from concept to deployment. * Engage in continuous learning and professional development, enhancing your skills and career prospects.
Role Full Stack Developer - Location - London (Remote) Salary - £70K - £85K - Role Type Permanent - Myn is an AI driven marketplace that connects the candidates, clients and recruiters. Myn collaborates with leading employers to offer exclusive, carefully matched permanent positions. Overview - Are you a talented Full Stack Developer eager to make an immediate impact on exciting projects? Our client is seeking an experienced Full Stack development professional for a hybrid position to be based in Central London, but operating remotely * Design and implement robust web applications using cutting-edge technologies and frameworks. * Collaborate with cross-functional teams to drive the full development lifecycle, from concept to deployment. * Engage in continuous learning and professional development, enhancing your skills and career prospects.
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RESTful API design/integration knowledge
RESTful API design/integration knowledge
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API Development
API Development
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Do you bring a breadth of technical expertise across reservation systems, Dynamics CRM, and API design? * Deep technical expertise across API design, integration layers, and data flow management.
Do you bring a breadth of technical expertise across reservation systems, Dynamics CRM, and API design? * Deep technical expertise across API design, integration layers, and data flow management.
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Senior Developer – Elasticsearch or OpenSearch – OUTSIDE IR35
Senior Developer – Elasticsearch or OpenSearch – OUTSIDE IR35
Smart Sourcer Limited
UK
From £450 to £500 per day Fully remote
Experience leveraging AWS cloud-native technologies to ensure scalability & reliability (inc. Lambda, ECS, API Gateway, SQS)
Experience leveraging AWS cloud-native technologies to ensure scalability & reliability (inc. Lambda, ECS, API Gateway, SQS)
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Experience building maintainable and testable code bases, including API design and unit testing techniques
Experience building maintainable and testable code bases, including API design and unit testing techniques
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Skilled in integrating third-party services, including API management (e.g., Google Apigee) and Identity Access Management (e.g., Okta).
Skilled in integrating third-party services, including API management (e.g., Google Apigee) and Identity Access Management (e.g., Okta).
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Strong understanding of JSON data structures and API calls.
Strong understanding of JSON data structures and API calls.
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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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Technical Lead
Technical Lead
Zorba Consulting
UK
From £60,000 to £70,000 per annum 28 days hols, health insurance, soci
Join a fast-growing HR software company as a Technical Lead for their Integration team with Client Facing experience, leading/mentoring technical teams and API development & integrations experience (C#, .NET, SQL Server). * 4+ years experience in API development and integrations (REST, SOAP, GraphQL) * Expertise in AWS services (Lambda, API Gateway, S3, DynamoDB, SQS, SNS)
Join a fast-growing HR software company as a Technical Lead for their Integration team with Client Facing experience, leading/mentoring technical teams and API development & integrations experience (C#, .NET, SQL Server). * 4+ years experience in API development and integrations (REST, SOAP, GraphQL) * Expertise in AWS services (Lambda, API Gateway, S3, DynamoDB, SQS, SNS)
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The Hoddesdon site has state-of-the-art Good Manufacturing Practice (GMP) standard facilities for the development of Active Pharmaceutical Ingredients (API), Formulation Development (FD) and Process Chemistry (PC).
The Hoddesdon site has state-of-the-art Good Manufacturing Practice (GMP) standard facilities for the development of Active Pharmaceutical Ingredients (API), Formulation Development (FD) and Process Chemistry (PC).
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The Hoddesdon site has state-of-the-art Good Manufacturing Practice (GMP) standard facilities for the development of Active Pharmaceutical Ingredients (API), Formulation Development (FD) and Process Chemistry (PC).
The Hoddesdon site has state-of-the-art Good Manufacturing Practice (GMP) standard facilities for the development of Active Pharmaceutical Ingredients (API), Formulation Development (FD) and Process Chemistry (PC).
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Understanding of web services (HTTP, Web API, Web protocols)
Understanding of web services (HTTP, Web API, Web protocols)
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Senior Java Engineering Lead - Digital Markets Infrastructure
Senior Java Engineering Lead - Digital Markets Infrastructure
London Stock Exchange
South East
Competitive
Solid understanding of REST API design principles.
Solid understanding of REST API design principles.
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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.
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See yourself at Dataminr - As a Senior Product Manager, Cybersecurity, you'll lead the development of cutting-edge, AI-powered cybersecurity products at Dataminr. In this role you'll be on the front lines, defining and delivering revolutionary, AI-powered products that solve the most critical security challenges. You'll work with world-class engineers and data scientists to turn groundbreaking ideas into market-defining solutions. This role is for a builder who thrives on fast-paced, high-impact worksomeone who is just as comfortable shaping product strategy as they are digging into the latest LLMs for threat detection. This remote position is open to candidates who are located in the UK or Ireland. AI Innovation at Dataminr - Working at Dataminr youll have the opportunity to tackle the most exciting trends in AI on a daily basis to power a revolutionary product that
See yourself at Dataminr - As a Senior Product Manager, Cybersecurity, you'll lead the development of cutting-edge, AI-powered cybersecurity products at Dataminr. In this role you'll be on the front lines, defining and delivering revolutionary, AI-powered products that solve the most critical security challenges. You'll work with world-class engineers and data scientists to turn groundbreaking ideas into market-defining solutions. This role is for a builder who thrives on fast-paced, high-impact worksomeone who is just as comfortable shaping product strategy as they are digging into the latest LLMs for threat detection. This remote position is open to candidates who are located in the UK or Ireland. AI Innovation at Dataminr - Working at Dataminr youll have the opportunity to tackle the most exciting trends in AI on a daily basis to power a revolutionary product that
Commercial experience of integrating Power Platform with third party API services and performing data migrations using appropriate integration tools (Kingswaysoft SSIS etc)
Commercial experience of integrating Power Platform with third party API services and performing data migrations using appropriate integration tools (Kingswaysoft SSIS etc)
Experience with API design and development (OpenAPI, REST, gRPC)
Experience with API design and development (OpenAPI, REST, gRPC)
About SnapLogic - SnapLogic is the Agentic Integration Company, integrating AI, data, applications, and microservices into one powerful platform that transforms how enterprises connect, automate, and scale. Unlike legacy integration tools, SnapLogic is built for the AI era and trusted by global leaders, including AstraZeneca, Adobe, Verizon, Epsilon and Sony. With its industry-leading platform, SnapLogic empowers every team across the enterprise to securely build faster, smarter, AI-connected workflows all through natural language and intuitive low-code design. We are looking for a customer-centric, intellectually curious, bright, energetic person with the ability to drive the successful architecture and delivery of enterprise grade integration solutions as part of a Professional Services Architecture team.
About SnapLogic - SnapLogic is the Agentic Integration Company, integrating AI, data, applications, and microservices into one powerful platform that transforms how enterprises connect, automate, and scale. Unlike legacy integration tools, SnapLogic is built for the AI era and trusted by global leaders, including AstraZeneca, Adobe, Verizon, Epsilon and Sony. With its industry-leading platform, SnapLogic empowers every team across the enterprise to securely build faster, smarter, AI-connected workflows all through natural language and intuitive low-code design. We are looking for a customer-centric, intellectually curious, bright, energetic person with the ability to drive the successful architecture and delivery of enterprise grade integration solutions as part of a Professional Services Architecture team.
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Experience: 10+ Years in Web Automation, 4+ Years in Python, 2+ Years in API, 2+ Years in SQL. * Automate API testing and integration workflows using Python libraries (e.g., requests, httpx). * Perform data-driven API testing, including authentication handling and response validation. * Practical knowledge of API testing using Postman and Python-based tools.
Experience: 10+ Years in Web Automation, 4+ Years in Python, 2+ Years in API, 2+ Years in SQL. * Automate API testing and integration workflows using Python libraries (e.g., requests, httpx). * Perform data-driven API testing, including authentication handling and response validation. * Practical knowledge of API testing using Postman and Python-based tools.
Tyk is an API Management platform helping to drive the connected world by enabling organizations to connect their systems and services. Our mission is to enable interconnectivity between systems and devices, starting with our API Management platform. As a Mid-Level Full-Stack Engineer (React + Go) at Tyk, you'll be responsible for designing and building compelling solutions for our Dashboard and API Gateway products. * Contribute to the direction of dashboard UI development and API functionality * Understanding of distributed systems design fundamentals and secure API design (REST and/or gRPC) * API management experience * Deliver high-quality UI and API code that meets requirements and improves performance and accessibility
Tyk is an API Management platform helping to drive the connected world by enabling organizations to connect their systems and services. Our mission is to enable interconnectivity between systems and devices, starting with our API Management platform. As a Mid-Level Full-Stack Engineer (React + Go) at Tyk, you'll be responsible for designing and building compelling solutions for our Dashboard and API Gateway products. * Contribute to the direction of dashboard UI development and API functionality * Understanding of distributed systems design fundamentals and secure API design (REST and/or gRPC) * API management experience * Deliver high-quality UI and API code that meets requirements and improves performance and accessibility