Senior Java Developer (Back end engineer)

Added 20/10/2025

JOB DESCRIPTION:Hiring: Senior Java DeveloperType: Contract Inside IR35 -12 months ExtendableExperience : 7+yearsLocation : Hamphshire, UK [ Hybrid - 2 days onsite / week ]Rate : GBP 500 - 650 /day Inside IR35ResponsibilitiesAnalyze, design, program, test, and deploy new user stories and features with high quality (security, reliability, operations) to productionTends to Associate Application Engineers by providing learning tasks as well as work related tasks, directs the work of Senior Associate Application Engineers, and helps them continue to growAchieves team commitments (and influence others to do the same) by using informal leadership & highly developed communication skillsHas an oversight on...

Java Developer (Back end engineer)

Added 17/09/2025

Hiring: Java DeveloperType: Contract Inside IR35 -12 months ExtendableExperience : 3+yearsLocation : Farnborough, UK [ Hybrid - 2 days onsite / week ]Rate : GBP 300 - 420 /day Inside IR35ResponsibilitiesAnalyze, design, program, test, and deploy new user stories and features with high quality (security, reliability, operations) to productionTends to Associate Application Engineers by providing learning tasks as well as work related tasks, directs the work of Senior Associate Application Engineers, and helps them continue to growAchieves team commitments (and influence others to do the same) by using informal leadership & highly developed communication skillsHas an oversight on design decisions...

Delivery Manager - Java / Spring Boot Migration to Kubernetes

Added 14/10/2025

Delivery Manager - Java / Spring Boot Migration to Kubernetes (GCP) Contract Our client, a global technology organisation, is migrating a core on-premise Java Spring Boot application to Kubernetes on Google Cloud Platform (GCP). They're seeking an experienced Delivery Manager to lead this critical modernisation initiative. Role OverviewYou'll manage the end-to-end delivery of the migration, coordinating cross-functional engineering, DevOps, and architecture teams. The role requires strong delivery leadership, technical awareness, and experience driving outcomes in complex, cloud-focused environments. Key Skills & ExperienceProven track record delivering cloud or platform migrations (on-prem to cloud).Solid understanding of Java / Spring Boot, Kubernetes, and...

ML Engineer (machine learning engineer) contract- remote

Added 23/09/2025

Machine Learning Engineer (Contract)Enterprise AI & Data IntegrationLocation: Remote with travel to London- once every two weeksContract: 6 months + possible extensionAbout the ClientOur client is a leading enterprise driving AI innovation at scale, leveraging Microsoft Azure and vast enterprise data ecosystems to unlock actionable insights and automation. They're seeking a Machine Learning Engineer with solid AI expertise and hands-on experience accessing and integrating complex data for AI consumption.Role OverviewAs a Machine Learning Engineer, you will design, build, and deploy scalable ML models and pipelines tailored to enterprise data. You'll work within Azure cloud environments, collaborating across teams to harness...

BI Specialist (SQL / Azure) - Perm (FTC) - Hybrid

Added 16/10/2025

Role - BI Specialist (SQL / Azure)Industry - AutomotiveType - Fixed term contract (2 months, extension thereafter)Rate - £75,000 per annum, pro rataLocation - Hybrid, 50% of the month in the office (London, Victoria)PURPOSE OF POST: Experienced Microsoft / Azure Business Intelligence (BI) Specialist to design, build, and support BI solutions across the Microsoft stack, including SSAS, SSRS, and Power BI. The post holder will play a key role in delivering high-quality, enterprise-grade analytics for platforms, while also enabling integration with third-party reporting tools such as Tableau and Amazon QuickSight. The successful candidate will have strong proficiency in SQL and...

GenAI Full Stack Engineer - RAG- LLM - Remote contract

Added 23/09/2025

Full Stack Engineer - GenAI Specialist LLMs | Python | RAG | ContractLocation: UK / Remote Contract Length: 6 months Start Date: ASAP We are working with an innovative enterprise client on a cutting-edge GenAI platform, and they are seeking a Full Stack GenAI Specialist with strong expertise in LLMs, prompt engineering, and AI-powered automation.You'll play a central role in building AI agents and primitives that drive automated code modernisation, delivering value across the full AI lifecycle - from model training pipelines to production-ready full-stack systems.This is a contract opportunity to work on highly advanced AI use cases using the...

Data Engineer- AI, Azure -Contract- Remote

Added 23/09/2025

Data Engineer - AI, Azure We're looking for a Data Engineer with solid experience working in Azure environments, and a strong focus on enabling AI and machine learning through accessible, well-structured enterprise data.You'll help design and maintain the data infrastructure that powers AI across the organisation, ensuring data is available, clean, secure, and aligned with enterprise standards. Key skillsDesign, build and maintain data pipelines on Azure to support AI/ML workloadsPrepare and transform enterprise data to meet the needs of AI models and analyticsIntegrate data from various sources (e.g., ERP, CRM, internal systems) using Azure toolsWork closely with data scientists and...

Data Engineer- AI, Azure -Contract- Remote

Added 10/07/2025

Data Engineer - AI, Azure We're looking for a Data Engineer with solid experience working in Azure environments, and a strong focus on enabling AI and machine learning through accessible, well-structured enterprise data.You'll help design and maintain the data infrastructure that powers AI across the organisation, ensuring data is available, clean, secure, and aligned with enterprise standards. Key skillsDesign, build and maintain data pipelines on Azure to support AI/ML workloadsPrepare and transform enterprise data to meet the needs of AI models and analyticsIntegrate data from various sources (e.g., ERP, CRM, internal systems) using Azure toolsWork closely with data scientists and...

Product Designer - AI project- contract- Remote

Added 27/08/2025

Contract Product Designer - AI ProjectRemote (UK-based)6 months | Sector: Artificial Intelligence / Digital services Tools: Figma, Agile, Miro, AI-enhanced design tools We're seeking a Product Designer to join a multidisciplinary team delivering a next-gen AI-powered service for a public sector organisation. This is a hands-on role spanning discovery through to high-fidelity prototyping and developer handoff.You'll work closely with researchers, developers, and product owners to shape intuitive, accessible digital experiences enhanced by AI capabilities. Key ResponsibilitiesLead design planning, scoping, and team alignmentSupport user research and co-create research artefactsTranslate insights into journeys, wireframes, and user storiesBuild and iterate prototypes in FigmaCollaborate...

Senior C# DotNet Developer (Contract)

Added 30/09/2025

Sr C# .Net DeveloperDublin - Hybrid7+ years required€450/day - €500/day We're looking for a Senior C# developer with strong .NET experience to build and support cloud-ready applications. You'll work across Windows, Mac, and Linux, using AWS services, and you'll get to dive into Systems & Connectivity, Databases, and Software Integrity. If you enjoy clean, test-driven code, automation, and working with Git in a collaborative team, this role offers plenty of technical variety and real impact.GCS is acting as an Employment Business in relation to this vacancy.

Senior DevSecOps Engineer - Fully Remote - Financial Services

Added 24/06/2025

The Role:12-month contract with potential for extensionFully remote working modelUp to 450 EurosImmediate StartI'm currently working with a Banking Client aiming to upskill their team with the introduction of an experienced Senior Engineer on a contract basis.As a Senior DevSecOps Engineer, you will be responsible for driving the Design, Implementation, and operational readiness of CI/CD Pipelines during the application migration, ensuring they are secure.Key ResponsibilitiesIndependently manage the full migration lifecycle, including build, test, and deployment automation.Validate systems for security, stability, and readiness for production deployment and sign-off.Assess current CI/CD pipelines and propose enhancements that align with industry standards, regulatory requirements,...

Senior Backend Javascript Developer - Remote - outside IR35

Added 25/09/2025

Senior Backend JavaScript DeveloperOutisde IR35 Remote and once in the London office every 2 weeks Our client, an innovative and forward-thinking technology business, is looking for a Senior Backend JavaScript Developer to join their growing engineering team. This is a fantastic opportunity for a seasoned developer who thrives on solving complex problems, building scalable systems, and mentoring others in a collaborative, agile environment.You will play a pivotal role in shaping the backend architecture, delivering high-quality code, and ensuring the platform continues to perform at scale as the business expands globally. Key skillsStrong proficiency in JavaScript/TypeScript with proven backend development experience.Hands-on...

Senior C# .Net Developer (Legacy Migration) - Remote

Added 22/09/2025

For our client who is a leading global information services company, providing data and analytical tools to our clients around the world. we are looking for below hiring . JOB DESCRIPTION:Role : Senior C# .NET Developer (Oracle to PostgreSQL Migration Project)Duration : 6 months extendableLocation : Nottingham ( Fully Remote )Rates : £500 - 520 per day Inside IR35Overview:About the ProjectWe are undertaking a strategic transformation of a legacy system built on PHP and Oracle, migrating to a modern architecture using PostgreSQL and .NET (C#).* 5+ years of experience in .NET/C# development, with a strong focus on backend services and...

Azure Platform Engineer - Azure ML Studio, Terraform- Contract

Added 07/10/2025

Azure Platform Engineer - Azure ML Studio / Terraform / Data EngineeringHybrid- majority remoteContractOverview:We are seeking an experienced Azure Platform Engineer with a strong background in Azure Machine Learning (ML) Studio, Infrastructure as Code (Terraform), and Data Engineering. You will play a key role in designing, building, and maintaining cloud-based data and ML platforms to support large-scale analytics and AI initiatives.Key Responsibilities:Design, implement, and manage Azure cloud infrastructure to support ML and data workloads.Develop and maintain Terraform scripts for infrastructure automation and environment provisioning.Collaborate with data scientists and engineers to deploy and operationalize ML models using Azure ML Studio.Build and...

Automation Test Engineer - Contract

Added 06/10/2025

We're looking for an experienced Automation Test Engineer to design, build, and maintain automated API and UI tests in a modern CI/CD environment for our client. You'll work closely with developers, DevOps, and QA teams in Agile workflows to ensure high-quality, scalable solutions.Key ResponsibilitiesDevelop and maintain automated API and UI tests.Integrate test suites into CI/CD pipelines.Support performance testing and optimize test coverage.Collaborate with cross-functional teams in Agile/Scrum environments.Essential SkillsAPI Testing: RestSharp, Postman, or similar; validate functionality, performance, and security.Test Automation: C# or similar; Selenium WebDriver for UI automation.CI/CD & DevOps: Pipeline integration and automation workflows.Performance Testing: Familiarity with tools like...