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15 API jobs in Broadlands, Romsey + 20 miles
213 exact matches jobs are outside your preferred location
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Low Latency C++ Engineer - Crypto
Low Latency C++ Engineer - Crypto
Understanding Recruitment
UK
£130000 - £185000 per annum + equity, bonus, remote, benefits
£130,000 - £185,000 DOE + RSUs + Bonus + Benefits?? Fully Remote (must be based in the UK) Want to help shape the future of crypto trading? This is a chance to join one of the world's leading crypto trading platforms and a team known for its cutting-edge low-latency systems and lightning-fast execution speeds. They're looking for engineers who thrive in high-performance, high-ownership environments. You'll work alongside some of the brightest minds in trading tech, designing and building distributed C++ systems that handle massive throughput with ultra-low latency. If you've honed your craft in a fast-paced, high-frequency environment, this could be your next big move. * Expert-level C++ experience (ideally in trading, HFT or other low-latency domains) * Proven track record building high-performance, highly available distributed systems * Strong design and architectur
£130,000 - £185,000 DOE + RSUs + Bonus + Benefits?? Fully Remote (must be based in the UK) Want to help shape the future of crypto trading? This is a chance to join one of the world's leading crypto trading platforms and a team known for its cutting-edge low-latency systems and lightning-fast execution speeds. They're looking for engineers who thrive in high-performance, high-ownership environments. You'll work alongside some of the brightest minds in trading tech, designing and building distributed C++ systems that handle massive throughput with ultra-low latency. If you've honed your craft in a fast-paced, high-frequency environment, this could be your next big move. * Expert-level C++ experience (ideally in trading, HFT or other low-latency domains) * Proven track record building high-performance, highly available distributed systems * Strong design and architectur
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Job title: Security Consultant - Location: UK Remote - Contract: 9 months, Outside IR35 - Why Apply? This contract role offers the opportunity to play a key part in strengthening an established Secure SDLC within a complex, large-scale environment. You'll work across application security and project delivery, influencing how security is embedded throughout the lifecycle and helping teams build solutions securely from the outset. * Lead improvements to the Secure Software Development Lifecycle, aligned to NIST CSF 2.0. * Act as an Application Security / Project Guardian, embedding security across delivery lifecycles. * Review and tighten existing vulnerability management practices. * Define and document end-to-end security requirements in a clear, accessible format for delivery teams. * Ensure security controls are applied at the right stage of projects, regardless of
Job title: Security Consultant - Location: UK Remote - Contract: 9 months, Outside IR35 - Why Apply? This contract role offers the opportunity to play a key part in strengthening an established Secure SDLC within a complex, large-scale environment. You'll work across application security and project delivery, influencing how security is embedded throughout the lifecycle and helping teams build solutions securely from the outset. * Lead improvements to the Secure Software Development Lifecycle, aligned to NIST CSF 2.0. * Act as an Application Security / Project Guardian, embedding security across delivery lifecycles. * Review and tighten existing vulnerability management practices. * Define and document end-to-end security requirements in a clear, accessible format for delivery teams. * Ensure security controls are applied at the right stage of projects, regardless of
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Building Application Enhancements using the .NET ecosystem & SQL * Building backend integrations & APIs to support core business applications. * Supporting Business As Usual (BAU) activities, inclusive of maintaining SSIS packages and addressing vulnerabilities & risks. * Documenting business and development processes. * Software Development skills with the .NET ecosystem (C#) with a solid understanding of software architecture and clean code principles. * Solid understanding of Bitbucket & version control. * Proficiency in SQL & Query Optimizations. * Familiarity with Agile/Scrum methodologies. * Positive Team Player with excellent communication and collaboration skills. * Critical thinker and excellent problem-solving skills. * Experience with Banking and Global Payments is a significant benefit. * Experience of application development best practices such as automat
Building Application Enhancements using the .NET ecosystem & SQL * Building backend integrations & APIs to support core business applications. * Supporting Business As Usual (BAU) activities, inclusive of maintaining SSIS packages and addressing vulnerabilities & risks. * Documenting business and development processes. * Software Development skills with the .NET ecosystem (C#) with a solid understanding of software architecture and clean code principles. * Solid understanding of Bitbucket & version control. * Proficiency in SQL & Query Optimizations. * Familiarity with Agile/Scrum methodologies. * Positive Team Player with excellent communication and collaboration skills. * Critical thinker and excellent problem-solving skills. * Experience with Banking and Global Payments is a significant benefit. * Experience of application development best practices such as automat
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Front End Developer - DV Cleared - Hybrid - Various Locations
Front End Developer - DV Cleared - Hybrid - Various Locations
Experis
UK
£70000 - £120000 per annum + Excellent Benefits
Front End Developer - Must have an Active DV Clearance - Hybrid - Location: Bristol, London, Manchester or Cambridge - Salary: £70,000 - £120,000 (depending on experience) We're looking for a skilled and motivated Front End Developer to help deliver modern, user-focused digital services for clients in the Defence sector. This is an exciting opportunity to join a multi-disciplinary team transforming the way Defence users interact with critical systems. You'll work closely with designers, UX specialists, back-end developers and stakeholders to bring ideas to life through intuitive and responsive interfaces. You'll be key to developing new applications, optimising performance, and shaping the digital journey from prototype through to production. * Building responsive, high-quality web applications and user interfaces using HTML, CSS and JavaScript
Front End Developer - Must have an Active DV Clearance - Hybrid - Location: Bristol, London, Manchester or Cambridge - Salary: £70,000 - £120,000 (depending on experience) We're looking for a skilled and motivated Front End Developer to help deliver modern, user-focused digital services for clients in the Defence sector. This is an exciting opportunity to join a multi-disciplinary team transforming the way Defence users interact with critical systems. You'll work closely with designers, UX specialists, back-end developers and stakeholders to bring ideas to life through intuitive and responsive interfaces. You'll be key to developing new applications, optimising performance, and shaping the digital journey from prototype through to production. * Building responsive, high-quality web applications and user interfaces using HTML, CSS and JavaScript
FEATURED
Full Stack Developer - DV Cleared - Hybrid - Various Locations
Full Stack Developer - DV Cleared - Hybrid - Various Locations
Experis
UK
£60000 - £120000 per annum + Excellent Benefits
Full Stack Developer - Must have an Active DV Clearance - Hybrid - Location: Bristol, London, Manchester or Cambridge - Salary: £70,000 - £120,000 (depending on experience and clearance) We are looking for a Full Stack Developer to join a growing public sector team delivering secure, high-impact digital services across Defence & Security. This is a unique opportunity to use your development expertise to help solve real-world challenges for government and national security clients. You'll work on meaningful projects in an agile environment, applying your skills across the full software development lifecycle - from design through to deployment. You'll be part of a collaborative and supportive engineering team, working alongside technical leads, project managers, and stakeholders to deliver robust and scalable solutions.
Full Stack Developer - Must have an Active DV Clearance - Hybrid - Location: Bristol, London, Manchester or Cambridge - Salary: £70,000 - £120,000 (depending on experience and clearance) We are looking for a Full Stack Developer to join a growing public sector team delivering secure, high-impact digital services across Defence & Security. This is a unique opportunity to use your development expertise to help solve real-world challenges for government and national security clients. You'll work on meaningful projects in an agile environment, applying your skills across the full software development lifecycle - from design through to deployment. You'll be part of a collaborative and supportive engineering team, working alongside technical leads, project managers, and stakeholders to deliver robust and scalable solutions.
FEATURED
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Do you want to be the engineer who builds Arms first AI infrastructure for predictive product quality insights and risk identification? Are you excited by the idea of taking full ownership of development while working with data and ML experts across the company? If so, this role is for you! About the Role - Were looking for a confident leader who can guide ambitious results collaboratively. As the sole developer in the team, youll collaborate with multiple data groups at Arm, creating automation workflows, APIs, and applications that connect datasets with ML models including innovative chat-to-data solutions. What Youll Do * Design and develop applications that integrate data pipelines, ML models, and user-friendly interfaces. * Build APIs and automation workflows using Databricks and related tools. * Apply Process Mining methods to uncover quality and risk insights.
Do you want to be the engineer who builds Arms first AI infrastructure for predictive product quality insights and risk identification? Are you excited by the idea of taking full ownership of development while working with data and ML experts across the company? If so, this role is for you! About the Role - Were looking for a confident leader who can guide ambitious results collaboratively. As the sole developer in the team, youll collaborate with multiple data groups at Arm, creating automation workflows, APIs, and applications that connect datasets with ML models including innovative chat-to-data solutions. What Youll Do * Design and develop applications that integrate data pipelines, ML models, and user-friendly interfaces. * Build APIs and automation workflows using Databricks and related tools. * Apply Process Mining methods to uncover quality and risk insights.
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Looking for a Technical Business Analyst to support squads across a high-profile digital environment. You'll work closely with technical and business teams, shaping requirements and supporting delivery from discovery through to live service. The role requires someone confident engaging directly with technical and business stakeholders, translating business needs into technical requirements, and supporting squads through the full lifecycle. * Gather and refine requirements with stakeholders * Translate discovery outputs into clear epics and user stories * Work with architects and developers to validate technical feasibility * Understand RESTful APIs, data flows, and integration patterns * Contribute to agile ceremonies and support iterative delivery * Work across legacy and modern service environments * Proven experience as a Technical BA within digital or engineering
Looking for a Technical Business Analyst to support squads across a high-profile digital environment. You'll work closely with technical and business teams, shaping requirements and supporting delivery from discovery through to live service. The role requires someone confident engaging directly with technical and business stakeholders, translating business needs into technical requirements, and supporting squads through the full lifecycle. * Gather and refine requirements with stakeholders * Translate discovery outputs into clear epics and user stories * Work with architects and developers to validate technical feasibility * Understand RESTful APIs, data flows, and integration patterns * Contribute to agile ceremonies and support iterative delivery * Work across legacy and modern service environments * Proven experience as a Technical BA within digital or engineering
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Location -We are flexible: onsite, hybrid or fully remote, depending on what works for you and the client, UK or Netherlands based. What you will actually be doing - This is not a role where you build clever models that never get used. Your focus is on creating measurable value for clients using data science, machine learning and GenAI, in a consulting and advisory context. You will own work from the very beginning, asking questions like "What value are we trying to create here?" and "Is this the right problem to solve?" through to "It is live, stakeholders are using it and we can see the impact in the numbers." You will work fairly independently and you will also be someone that more junior team members look to for help and direction. A big part of the job is taking messy, ambiguous business and technical problems and turning them into clear, valuable solutions that
Location -We are flexible: onsite, hybrid or fully remote, depending on what works for you and the client, UK or Netherlands based. What you will actually be doing - This is not a role where you build clever models that never get used. Your focus is on creating measurable value for clients using data science, machine learning and GenAI, in a consulting and advisory context. You will own work from the very beginning, asking questions like "What value are we trying to create here?" and "Is this the right problem to solve?" through to "It is live, stakeholders are using it and we can see the impact in the numbers." You will work fairly independently and you will also be someone that more junior team members look to for help and direction. A big part of the job is taking messy, ambiguous business and technical problems and turning them into clear, valuable solutions that
My client are seeking a talentedScala Developerto join their engineering team and contribute to the design and development ofscalable, high-performance applications. This role involves working on modern distributed systems, building APIs, and collaborating with cross-functional teams to deliver enterprise-grade solutions. * Design, develop and maintain backend services and APIs usingScalaandPlay Framework. * Implement RESTful endpoints, manage request/response lifecycle, and handle authentication/authorization flows. * Write well-structured, idiomatic Scala and use functional programming patterns where appropriate. * Build and maintain automated tests (unit, integration), and support test automation efforts. * Collaborate with product owners, UX, QA, and other engineers in an Agile environment (Scrum/Kanban).
My client are seeking a talentedScala Developerto join their engineering team and contribute to the design and development ofscalable, high-performance applications. This role involves working on modern distributed systems, building APIs, and collaborating with cross-functional teams to deliver enterprise-grade solutions. * Design, develop and maintain backend services and APIs usingScalaandPlay Framework. * Implement RESTful endpoints, manage request/response lifecycle, and handle authentication/authorization flows. * Write well-structured, idiomatic Scala and use functional programming patterns where appropriate. * Build and maintain automated tests (unit, integration), and support test automation efforts. * Collaborate with product owners, UX, QA, and other engineers in an Agile environment (Scrum/Kanban).
Palantir Foundry Lead Consultant - Lead architect and hands-on technical owner for Palantir Foundry implementations. You will design and build production-grade data and application workflows on Foundry, own technical decisions end-to-end and work directly with senior stakeholders while mentoring engineering teams. Core Responsibilities - Foundry Solution Architecture & Build - o Data integration (Pipeline Builder/code-based pipelines, connectors, incremental loads). o Ontology modelling (object/relationship design, semantics, versioning). o Application layer (Workshop, Code Repositories, OSDK/APIs, Actions, AIP/agentic workflows). * Define and implement patterns for data modelling, transformation, and lineage tracking. * Design permission models (RBAC/ABAC), object-level security and auditability. * Implement CI/CD and environment promotion strategies for Foundry arte
Palantir Foundry Lead Consultant - Lead architect and hands-on technical owner for Palantir Foundry implementations. You will design and build production-grade data and application workflows on Foundry, own technical decisions end-to-end and work directly with senior stakeholders while mentoring engineering teams. Core Responsibilities - Foundry Solution Architecture & Build - o Data integration (Pipeline Builder/code-based pipelines, connectors, incremental loads). o Ontology modelling (object/relationship design, semantics, versioning). o Application layer (Workshop, Code Repositories, OSDK/APIs, Actions, AIP/agentic workflows). * Define and implement patterns for data modelling, transformation, and lineage tracking. * Design permission models (RBAC/ABAC), object-level security and auditability. * Implement CI/CD and environment promotion strategies for Foundry arte
Implement cloud-native applications leveraging AWS services including Lambda, API Gateway, and S3. * Hands-on experience with AWS serverless services (Lambda, API Gateway, SQS/SNS, Step Functions, S3). * Take ownership of key microservices or API features within your product area.
Implement cloud-native applications leveraging AWS services including Lambda, API Gateway, and S3. * Hands-on experience with AWS serverless services (Lambda, API Gateway, SQS/SNS, Step Functions, S3). * Take ownership of key microservices or API features within your product area.
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Lead .NET/C# Developer - 12 Month Remote Contract (Inside IR35)
Lead .NET/C# Developer - 12 Month Remote Contract (Inside IR35)
Stealth IT Consulting Limited
UK
£475 per day £475 per day (Inside IR35)
Azure API Management
Azure API Management
Senior Software Developer (BPSS Cleared) – SFIA Level 5 (Remote UK)
Senior Software Developer (BPSS Cleared) – SFIA Level 5 (Remote UK)
Stealth IT Consulting Limited
UK
£450 per day £450 per day (Inside IR35)
Configure API gateways and reverse proxies with Kong (CE/EE) and Nginx.
Configure API gateways and reverse proxies with Kong (CE/EE) and Nginx.
The ideal candidate will have strong experience in API development, microservices architecture, CI/CD pipelines, and containerization. Additional Skills: API development, microservices, CI/CD pipelines, containerization (Docker/Kubernetes), Leadership, Greenfield development experience
The ideal candidate will have strong experience in API development, microservices architecture, CI/CD pipelines, and containerization. Additional Skills: API development, microservices, CI/CD pipelines, containerization (Docker/Kubernetes), Leadership, Greenfield development experience
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Proficient in API-centric architecture, microservices, and data integration techniques.
Proficient in API-centric architecture, microservices, and data integration techniques.
FEATURED
Senior Software Developer (BPSS Cleared) - Contract (Remote UK)
Senior Software Developer (BPSS Cleared) - Contract (Remote UK)
Stealth IT Consulting Limited
UK
£380 per day £380 per day
Configure and manage API gateways and reverse proxies using Kong (CE/EE) and Nginx.
Configure and manage API gateways and reverse proxies using Kong (CE/EE) and Nginx.
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ServiceNow Architect – Full Time Onsite (Abu Dhabi) Relocation from UK
ServiceNow Architect – Full Time Onsite (Abu Dhabi) Relocation from UK
NST Recruitment Ltd
UK
From £100,000 to £110,000 per annum GBP equivalent to AED - tax free (
The ServiceNow Architect needs good REST API knowledge as well as licence management.
The ServiceNow Architect needs good REST API knowledge as well as licence management.
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A good understanding of API design (REST or GraphQL) and relational databases
A good understanding of API design (REST or GraphQL) and relational databases
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The role bridges business goals with technical execution, leading client engagements from pre-sales through delivery, while also contributing directly as a software engineer on scalable geospatial components, API and data pipelines.
The role bridges business goals with technical execution, leading client engagements from pre-sales through delivery, while also contributing directly as a software engineer on scalable geospatial components, API and data pipelines.
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Implement single sign-on and API authentication in WorkForces suite and on-premises environments.
Implement single sign-on and API authentication in WorkForces suite and on-premises environments.
Expert knowledge of HTML, CSS, JavaScript Experience developing Frontend Application using Modern Javascript frameworks like React/Vue/Svelte/Angular Writing unit tests with modern front end testing frameworks like Jest Experience of consuming and modifying CI/CD pipelines Experience working with API of varying types and integrating with backend data Experience of working with cloud technologies (Azure/AWS) Capable of teaching/mentoring/pair-programming with other members of the team - Experience of Docker Experience of working in a Continuous Delivery or Deployment environment Experience of developing any backend API frameworks * Experience working with API of varying types and integrating with backend data * Experience of developing any backend API frameworks
Expert knowledge of HTML, CSS, JavaScript Experience developing Frontend Application using Modern Javascript frameworks like React/Vue/Svelte/Angular Writing unit tests with modern front end testing frameworks like Jest Experience of consuming and modifying CI/CD pipelines Experience working with API of varying types and integrating with backend data Experience of working with cloud technologies (Azure/AWS) Capable of teaching/mentoring/pair-programming with other members of the team - Experience of Docker Experience of working in a Continuous Delivery or Deployment environment Experience of developing any backend API frameworks * Experience working with API of varying types and integrating with backend data * Experience of developing any backend API frameworks
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Experience in scripting in (i.e., PowerShell, REST API, PowerShell, JSON).
Experience in scripting in (i.e., PowerShell, REST API, PowerShell, JSON).
NEWPREMIUM
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Solid knowledge: REST API, SSL/TLS, IPv4, JSON, LDAP, Proxies
Solid knowledge: REST API, SSL/TLS, IPv4, JSON, LDAP, Proxies
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Commercial experience of penetration testing including Web Applications and API. * Postman or SOAP UI for API testing with a security focus (e.g. injection, authorisation, token misuse).
Commercial experience of penetration testing including Web Applications and API. * Postman or SOAP UI for API testing with a security focus (e.g. injection, authorisation, token misuse).
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Strong systems and distributed design skills: concurrency, performance, resiliency, API design, and fault isolation.
Strong systems and distributed design skills: concurrency, performance, resiliency, API design, and fault isolation.