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Api
York
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Minimum of 8 years' applied experience as an API engineer * Strong experience in API designing and creating architectural artefacts such as gap analysis, low level designs, data models etc.
Minimum of 8 years' applied experience as an API engineer * Strong experience in API designing and creating architectural artefacts such as gap analysis, low level designs, data models etc.
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Lead Automation Test Engineer
Lead Automation Test Engineer
Vallum Associates Limited
Sheffield (S1)
From £450 to £500 per day Inside IR35
Experience of using automation tools such as Selenium web driver IO (WDIO) / Cucumber etc, Selenium for UI testing and RestAssured for API testing
Experience of using automation tools such as Selenium web driver IO (WDIO) / Cucumber etc, Selenium for UI testing and RestAssured for API testing
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Provide architectural guidance on MDM platform selection, cloud vs. on-prem deployment, and integration patterns (API, ETL, messaging).
Provide architectural guidance on MDM platform selection, cloud vs. on-prem deployment, and integration patterns (API, ETL, messaging).
Join our Cloud Native Engineering Lab as a Senior Cloud Platform Engineer (GCP) and help us design, build, and operate secure, automated cloud platforms that empower product teams to deliver API-first services at pace and with confidence. * API-First Enablement: Enable API-first delivery with reusable patterns and golden paths for API producers and consumers. * Strong API design and security skills (REST/OpenAPI, authN/Z, mTLS, certificate lifecycle). o Apigee for API Management * Desirable: Harness, HashiCorp Vault, Dynatrace, Docker/buildah, NodeJS for API tooling, relevant GCP certifications. * Harness, HashiCorp Vault, Dynatrace, Docker/buildah, NodeJS for API tooling, Google Professional Cloud Architect or GCP DevOps certificatio
Join our Cloud Native Engineering Lab as a Senior Cloud Platform Engineer (GCP) and help us design, build, and operate secure, automated cloud platforms that empower product teams to deliver API-first services at pace and with confidence. * API-First Enablement: Enable API-first delivery with reusable patterns and golden paths for API producers and consumers. * Strong API design and security skills (REST/OpenAPI, authN/Z, mTLS, certificate lifecycle). o Apigee for API Management * Desirable: Harness, HashiCorp Vault, Dynatrace, Docker/buildah, NodeJS for API tooling, relevant GCP certifications. * Harness, HashiCorp Vault, Dynatrace, Docker/buildah, NodeJS for API tooling, Google Professional Cloud Architect or GCP DevOps certificatio
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Use automation tools such as Selenium WebDriver IO (WDIO), Cucumber, Selenium (UI), and RestAssured (API). * Exposure to SailPoint IdentityIQ, identity warehousing, and ingestion formats: SCIM, REST API, LDAP, OIDC, CSV. * API testing, API Gateway testing, and Batch/ETL testing.
Use automation tools such as Selenium WebDriver IO (WDIO), Cucumber, Selenium (UI), and RestAssured (API). * Exposure to SailPoint IdentityIQ, identity warehousing, and ingestion formats: SCIM, REST API, LDAP, OIDC, CSV. * API testing, API Gateway testing, and Batch/ETL testing.
Develop, execute, and maintain automated test frameworks and scripts for web, API, database, and cloud-based applications. * Hands-on experience with automation tools such as Selenium WebDriver IO (WDIO), Cucumber, Selenium UI, and RestAssured for API testing. * API Testing, API Gateway testing, Batch/ETL testing. * Experience with SailPoint IdentityIQ, identity warehousing, SCIM, REST API, LDAP, OIDC, CSV ingestion.
Develop, execute, and maintain automated test frameworks and scripts for web, API, database, and cloud-based applications. * Hands-on experience with automation tools such as Selenium WebDriver IO (WDIO), Cucumber, Selenium UI, and RestAssured for API testing. * API Testing, API Gateway testing, Batch/ETL testing. * Experience with SailPoint IdentityIQ, identity warehousing, SCIM, REST API, LDAP, OIDC, CSV ingestion.
Strong theoretical and practical knowledge of API and database testing. * Exposure to AD/ADLDS, API Gateway testing, Batch/ETL testing. * Experience with SailPoint IdentityIQ, Identity Warehousing, SCIM, REST API, LDAP, OIDC, CSV ingestion.
Strong theoretical and practical knowledge of API and database testing. * Exposure to AD/ADLDS, API Gateway testing, Batch/ETL testing. * Experience with SailPoint IdentityIQ, Identity Warehousing, SCIM, REST API, LDAP, OIDC, CSV ingestion.
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Experience of using automation tools such as Selenium web driver IO (WDIO) / Cucumber etc, Selenium for UI testing and RestAssured for API testing * Any exposure to SailPoint IdentityIQ, Identity warehousing, and working with protocols and formats for data ingestion such as SCIM, REST API, LDAP, OIDC and CSV * API Testing, API Gateway testing, Batch ETL testing * API
Experience of using automation tools such as Selenium web driver IO (WDIO) / Cucumber etc, Selenium for UI testing and RestAssured for API testing * Any exposure to SailPoint IdentityIQ, Identity warehousing, and working with protocols and formats for data ingestion such as SCIM, REST API, LDAP, OIDC and CSV * API Testing, API Gateway testing, Batch ETL testing * API
FEATURED
Strong, theoretical, and practical knowledge of API and Database testing
Strong, theoretical, and practical knowledge of API and Database testing
FEATURED
Experience of using automation tools such as Selenium web driver IO (WDIO) / Cucumber etc, Selenium for UI testing and RestAssured for API testing * Any exposure to SailPoint IdentityIQ, Identity warehousing, and working with protocols and formats for data ingestion such as SCIM, REST API, LDAP, OIDC and CSV * API Testing, API Gateway testing, Batch ETL testing * API
Experience of using automation tools such as Selenium web driver IO (WDIO) / Cucumber etc, Selenium for UI testing and RestAssured for API testing * Any exposure to SailPoint IdentityIQ, Identity warehousing, and working with protocols and formats for data ingestion such as SCIM, REST API, LDAP, OIDC and CSV * API Testing, API Gateway testing, Batch ETL testing * API
FEATURED
Minimum of 15 years applied experience as an API engineer * Strong experience in API designing and creating architectural artefacts such as gap analysis, low level designs, data models etc.
Minimum of 15 years applied experience as an API engineer * Strong experience in API designing and creating architectural artefacts such as gap analysis, low level designs, data models etc.
The ideal candidate should not only have technical proficiency in data structures, automation technologies, API interactions, and cloud services, but also exhibit a strong drive to research, investigate, and collaborate effectively within the organization. Experience with API development and integrations with platforms such as Kong API Gateway (ideal), Apigee, AWS API GW, Azure API GW, etc API Integration and Management: Expertise in querying, integrating, and managing APIs. Capable of constructing and executing API calls for data retrieval, updates, and inter-service communication.
The ideal candidate should not only have technical proficiency in data structures, automation technologies, API interactions, and cloud services, but also exhibit a strong drive to research, investigate, and collaborate effectively within the organization. Experience with API development and integrations with platforms such as Kong API Gateway (ideal), Apigee, AWS API GW, Azure API GW, etc API Integration and Management: Expertise in querying, integrating, and managing APIs. Capable of constructing and executing API calls for data retrieval, updates, and inter-service communication.
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Role: Senior Software Engineer - Backend Contract - Rate: C.£550 Outside IR35 Per day - Location: Leeds - Hybrid (2x days on site) Length: 3-6 months - We are working with a growing, forward-thinking technology company dedicated to building scalable, reliable, and high-performing solutions for our customers. As a Senior Software Engineer, you will be responsible for designing, developing, and maintaining server-side applications and services. You'll work closely with cross-functional teams to ensure our systems are performant, secure, and deliver a great user experience. * Design, implement, and maintain backend services, APIs, and databases. * Collaborate with product managers, frontend engineers, and other stakeholders to deliver features end-to-end. * Ensure systems are scalable, reliable, and maintainable. * Write clean, testable, and efficient code following best
Role: Senior Software Engineer - Backend Contract - Rate: C.£550 Outside IR35 Per day - Location: Leeds - Hybrid (2x days on site) Length: 3-6 months - We are working with a growing, forward-thinking technology company dedicated to building scalable, reliable, and high-performing solutions for our customers. As a Senior Software Engineer, you will be responsible for designing, developing, and maintaining server-side applications and services. You'll work closely with cross-functional teams to ensure our systems are performant, secure, and deliver a great user experience. * Design, implement, and maintain backend services, APIs, and databases. * Collaborate with product managers, frontend engineers, and other stakeholders to deliver features end-to-end. * Ensure systems are scalable, reliable, and maintainable. * Write clean, testable, and efficient code following best
Software Engineer (AI & Machine Learning Focus)
Software Engineer (AI & Machine Learning Focus)
Bluetree Group
Rotherham, South Yorkshire
£40,000 - £60,000 a year
Drive E-commerce Innovation: Use AI to Simplify Print for Hundreds of Thousands of Customers. Location: Manvers, Rotherham - Type: Full-time Monday to Friday 9am - 5.30pm with flexible working options. Salary: £40,000-£60,000 depending on experience - We're a leading e-commerce print company operating two distinct online brands, route1print and instantprint. Our core mission is simple: to make print buying as easy as possible for small businesses. We are looking for a talented Software Engineer to leverage cutting-edge technology to drive this mission forward. From automating complex artwork manipulation and streamlining responses to customer queries to identifying proactive opportunities to improve the end-to-end user experience, you will play a crucial role in using AI to enhance the online customer journey,
Drive E-commerce Innovation: Use AI to Simplify Print for Hundreds of Thousands of Customers. Location: Manvers, Rotherham - Type: Full-time Monday to Friday 9am - 5.30pm with flexible working options. Salary: £40,000-£60,000 depending on experience - We're a leading e-commerce print company operating two distinct online brands, route1print and instantprint. Our core mission is simple: to make print buying as easy as possible for small businesses. We are looking for a talented Software Engineer to leverage cutting-edge technology to drive this mission forward. From automating complex artwork manipulation and streamlining responses to customer queries to identifying proactive opportunities to improve the end-to-end user experience, you will play a crucial role in using AI to enhance the online customer journey,
Strong commercial experience with Node.js (Back End services and API development). * Knowledge of RESTful API design and integration.
Strong commercial experience with Node.js (Back End services and API development). * Knowledge of RESTful API design and integration.
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Senior Front-End Developer - 1 Year Contract - Remote
Senior Front-End Developer - 1 Year Contract - Remote
Stealth IT Consulting Limited
UK
From £450 to £500 per day
Understanding of API integrations and cross-functional workflow
Understanding of API integrations and cross-functional workflow
Senior Full Stack Developer (SC Cleared) - 12 Month Contract - Remote
Senior Full Stack Developer (SC Cleared) - 12 Month Contract - Remote
Stealth IT Consulting Limited
UK
From £450 to £500 per day
Strong understanding of API development and microservices
Strong understanding of API development and microservices
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• Strong backend engineering background delivering high-scale systems with AI components (Python/Java, RAG frameworks, vector databases, API engineering).
• Strong backend engineering background delivering high-scale systems with AI components (Python/Java, RAG frameworks, vector databases, API engineering).
My client are seeking a JavaDeveloper with strong expertise in Apache Kafka, Node.js, and AWS cloud services. The role involves designing and implementing scalable, event-driven architectures, building microservices, and deploying solutions in a cloud-native environment. Essential Skills & Experience * Strong commercial experience with Java (core + modern frameworks) * Hands-on experience with Node.js * Proven background delivering solutions in AWS environments * Understanding of microservices, APIs and distributed systems * Experience working in Agile / DevOps environments * Familiarity with CI/CD pipelines and cloud-native tooling * Experience with Kafka Desirable * Previous experience working in public-sector or secure environments
My client are seeking a JavaDeveloper with strong expertise in Apache Kafka, Node.js, and AWS cloud services. The role involves designing and implementing scalable, event-driven architectures, building microservices, and deploying solutions in a cloud-native environment. Essential Skills & Experience * Strong commercial experience with Java (core + modern frameworks) * Hands-on experience with Node.js * Proven background delivering solutions in AWS environments * Understanding of microservices, APIs and distributed systems * Experience working in Agile / DevOps environments * Familiarity with CI/CD pipelines and cloud-native tooling * Experience with Kafka Desirable * Previous experience working in public-sector or secure environments
Java Developer 12 month Contract - 1 Stage Interview
Java Developer 12 month Contract - 1 Stage Interview
Stealth IT Consulting Limited
UK
Up to £400 per day £400 (Inside IR35) Per Day
Role Overview - We are seeking a skilled Java Developer with strong experience across Java, Node.js, and AWS to support large-scale digital transformation projects within a secure public-sector environment. You will join a collaborative engineering team focused on delivering secure, scalable and high-quality services. Key Responsibilities * Develop, maintain and optimise backend services using Java and Node.js * Build and deploy applications on AWS following best practices * Work within an Agile delivery team, contributing to sprints, ceremonies and code reviews * Collaborate with architects, product owners and other engineers to deliver high-impact features * Ensure code quality, security and performance are upheld * Support CI/CD processes, testing and automation - Essential Skills & Experience * Strong commercial experience with Java (core + modern frameworks)
Role Overview - We are seeking a skilled Java Developer with strong experience across Java, Node.js, and AWS to support large-scale digital transformation projects within a secure public-sector environment. You will join a collaborative engineering team focused on delivering secure, scalable and high-quality services. Key Responsibilities * Develop, maintain and optimise backend services using Java and Node.js * Build and deploy applications on AWS following best practices * Work within an Agile delivery team, contributing to sprints, ceremonies and code reviews * Collaborate with architects, product owners and other engineers to deliver high-impact features * Ensure code quality, security and performance are upheld * Support CI/CD processes, testing and automation - Essential Skills & Experience * Strong commercial experience with Java (core + modern frameworks)
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QA Tester - Python/Gherkin/BDD - SC Cleared
QA Tester - Python/Gherkin/BDD - SC Cleared
Hays
UK
£450.0 - £500.0 per annum + £450 - £500 inside IR35
Your new company - One of the largest Public Sector Organisations in the UK managing trade - Your new role - What you'll need to succeed - We are supporting a client in seeking an experienced Quality Assurance (QA) contractor to help design, build, and operationalise robust testing capabilities across our web application stack. You will play a key role in ensuring the reliability, performance, and security of our systems, which include a Django/Wagtail CMS backend, microservices architecture, and a modern JavaScript/CSS frontend. You will develop and execute comprehensive test strategies, covering both manual and automated testing. This is a strategic and technical role, with a strong emphasis on quality uplift, process definition, and knowledge transfer across the team. You will be instrumental in validating deployments across multiple environments, supporting Agile
Your new company - One of the largest Public Sector Organisations in the UK managing trade - Your new role - What you'll need to succeed - We are supporting a client in seeking an experienced Quality Assurance (QA) contractor to help design, build, and operationalise robust testing capabilities across our web application stack. You will play a key role in ensuring the reliability, performance, and security of our systems, which include a Django/Wagtail CMS backend, microservices architecture, and a modern JavaScript/CSS frontend. You will develop and execute comprehensive test strategies, covering both manual and automated testing. This is a strategic and technical role, with a strong emphasis on quality uplift, process definition, and knowledge transfer across the team. You will be instrumental in validating deployments across multiple environments, supporting Agile
Job Title: Product Security Architect (Contract) Location: UK-based / Remote - Contract: 3 months initially, Outside IR35 - Why Apply? This is an opportunity to play a key role in shaping Product Security for an international technology organisation. The role offers exposure to a federated environment across multiple business units, providing strategic influence and hands on technical impact. * Define, lead, and evolve a group-wide Product Security and Secure SSDLC strategy across all business units. * Assess current AppSec capabilities, identify gaps, and implement practical, scalable improvements. * Collaborate with Product Architects, engineering, and security teams to integrate security into GitHub, CI/CD pipelines, and development workflows. * Provide architecture guidance and implement secure coding practices, threat modelling, and security tooling.
Job Title: Product Security Architect (Contract) Location: UK-based / Remote - Contract: 3 months initially, Outside IR35 - Why Apply? This is an opportunity to play a key role in shaping Product Security for an international technology organisation. The role offers exposure to a federated environment across multiple business units, providing strategic influence and hands on technical impact. * Define, lead, and evolve a group-wide Product Security and Secure SSDLC strategy across all business units. * Assess current AppSec capabilities, identify gaps, and implement practical, scalable improvements. * Collaborate with Product Architects, engineering, and security teams to integrate security into GitHub, CI/CD pipelines, and development workflows. * Provide architecture guidance and implement secure coding practices, threat modelling, and security tooling.
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Role: Developer - Tech Stack: .NET, C#, AWS, MongoDB - IR35 Status: Outside IR35 - Day Rate: £400.00 - Location: Remote - Contract Length: 3 Months (highly likely to extend to 6 Months+) Start Date: Immediate - We are seeking a Developer to join the agile delivery team supporting the development of a major government digital platform. You will be responsible for developing secure, performant, and maintainable features, working across both front-end and back-end elements of the system. This role is suitable for developers with a strong foundation in .NET and cloud-native engineering, and offers scope to grow technical ownership within a supportive, delivery-focused team. You'll be working in an environment that values collaboration, learning, and continuous improvement. Key Responsibilities * Design, build, test, and deploy robust software components using modern devel
Role: Developer - Tech Stack: .NET, C#, AWS, MongoDB - IR35 Status: Outside IR35 - Day Rate: £400.00 - Location: Remote - Contract Length: 3 Months (highly likely to extend to 6 Months+) Start Date: Immediate - We are seeking a Developer to join the agile delivery team supporting the development of a major government digital platform. You will be responsible for developing secure, performant, and maintainable features, working across both front-end and back-end elements of the system. This role is suitable for developers with a strong foundation in .NET and cloud-native engineering, and offers scope to grow technical ownership within a supportive, delivery-focused team. You'll be working in an environment that values collaboration, learning, and continuous improvement. Key Responsibilities * Design, build, test, and deploy robust software components using modern devel
Scala Developer - Remote Contract - Immediate Start
Scala Developer - Remote Contract - Immediate Start
Stealth IT Consulting Limited
UK
£380 per day £380 per day (Inside IR35)
Role Overview - We are seeking an experienced Scala Developer to join a dynamic team working on high-impact projects. The ideal candidate will have strong expertise in Scala and Play Framework, with a passion for building robust, scalable backend services and APIs. This is a fully remote contract role with an immediate start. Key Responsibilities * Design, develop, and maintain backend services and APIs using Scala and Play Framework. * Implement RESTful endpoints, manage request/response lifecycle, and handle authentication/authorization flows. * Write clean, idiomatic Scala code and apply functional programming principles where appropriate. * Develop and maintain automated tests (unit and integration) and support test automation initiatives. * Collaborate with product owners, UX designers, QA, and other engineers in an Agile environment (Scrum/Kanban).
Role Overview - We are seeking an experienced Scala Developer to join a dynamic team working on high-impact projects. The ideal candidate will have strong expertise in Scala and Play Framework, with a passion for building robust, scalable backend services and APIs. This is a fully remote contract role with an immediate start. Key Responsibilities * Design, develop, and maintain backend services and APIs using Scala and Play Framework. * Implement RESTful endpoints, manage request/response lifecycle, and handle authentication/authorization flows. * Write clean, idiomatic Scala code and apply functional programming principles where appropriate. * Develop and maintain automated tests (unit and integration) and support test automation initiatives. * Collaborate with product owners, UX designers, QA, and other engineers in an Agile environment (Scrum/Kanban).
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