Full Stack Java Developer - Contract

Added 02/09/2026

Full Stack Java DeveloperContract | HybridWe're seeking a senior Full Stack Java Developer to join a high-performing engineering team delivering modern, cloud-native applications within an enterprise environment.You'll play a key role in designing, building and deploying scalable systems across the full software development lifecycle, working within agile teams focused on quality, automation and continuous delivery.Essential Skills & Experience5+ years' commercial Full Stack Engineering experience5 years strong React or React Native development expertiseProven Java and Spring Boot development experienceRESTful API design and developmentMicroservices architecture and distributed systemsSQL and database technologiesTest Driven Development (TDD) and Behaviour Driven Development (BDD)Unit, integration and automated...

Java Developer

Added 29/07/2026

Java Data Engineer IV (Contractor)Location: Philadelphia, PA (1701 John F. Kennedy Blvd) Type: ContractAbout the RoleOur team is seeking a Java Data Engineer IV to support a high-impact data engineering initiative focused on modernizing and scaling enterprise analytics. This role will be instrumental in building and enhancing the data pipelines that power inventory, supply, and yield reporting, enabling business-critical analytics delivered through Tableau Cloud.You'll work alongside experienced data engineers to develop robust ETL solutions, migrate legacy data workloads, and build cloud-native data pipelines using AWS, Databricks, and Snowflake. This is an excellent opportunity for an engineer who enjoys solving complex...

Java Full stack developer

Added 04/06/2026

We are excited to announce a fully remote opportunity with a leading financial client based in Poland. We're looking for talented Full stack engineer who are passionate about building modern web applications and have strong expertise in Java, Springboot, Microservices, React, CSS and NX Monorepo. Key requirements:Strong experience in Java and Spring BootHands-on expertise with microservices architectureFrontend development experience with React and TypeScriptExperience working with Nx monorepo setups and CSSMandatory experience with authentication systems such as Keycloak and OAuth2Good experience in Microfrontends.Background in building and shipping scalable applications with reusable componentsSolid understanding of SDLC processes, CI/CD automation, and deployment pipelines...

Senior Software Engineer (Java/AWS)

Added 26/08/2026

Senior Software Engineer (Java/AWS)Permnent Role (No sponsroship is provided) | Dublin (Hybrid)Location: Dublin, Ireland Work Arrangement: Hybrid (minimum 3 days per week in the office)About the CompanyOur client is a global technology company building large-scale cloud software solutions for enterprise customers. Their products support complex business processes through highly available, scalable, and performance-driven platforms used across multiple industries worldwide.The engineering organisation is focused on delivering reliable SaaS products, modern cloud infrastructure, and exceptional user experiences while operating within complex and demanding technical environments.Role OverviewAs a Senior Software Engineer, you will design, develop, and enhance cloud-based backend services within a modern...

Senior Java Data Engineer

Added 29/07/2026

Senior Java Data Engineer (AWS | Databricks | Spring Boot) - ContractLocation: Philadelphia, PA (Hybrid) Duration: ContractBuild the Data Platform Behind Enterprise AnalyticsWe're looking for an experienced Java Data Engineer to join a growing Data Engineering team responsible for building the next generation of cloud-based data solutions. In this role, you'll help modernize enterprise data platforms by developing scalable ETL pipelines, enhancing legacy applications, and delivering reliable data assets that power business intelligence and analytics.This position is ideal for someone who enjoys working across software engineering and data engineering, building cloud-native solutions using AWS, Databricks, and Snowflake while leveraging Java,...

Java Backend Engineer

Added 17/07/2026

Job Role - Java Backend EngineerLocation: Remote (Candidates must be based in Poland)Office Hub: Kraków, PolandContract: 12 Months (B2B/Freelance) We are seeking an experienced Senior Java Backend Engineer to join a high-performing engineering team on a 12-month B2B/Freelance contract, with a strong possibility of extension.This is an exciting opportunity to work on a leading technology platform, collaborating with top-tier engineers in a fast-paced, international environment. You'll play a key role in shaping scalable backend solutions, driving technical excellence, and supporting teams across multiple stakeholders.Key ResponsibilitiesCollaborate with highly skilled engineering teams to build and scale a best-in-class platform.Drive technical excellence and...

Kotlin Developer

Added 22/09/2026

Kotlin Developer (Contract)📍 Sheffield, UK (Hybrid - 2 Days Onsite per Week) 📄 Contract | Full-TimeAbout the RoleWe are looking for a talented Kotlin Developer to join a dynamic Developer Experience (DevX) Standards & Controls team. You'll play a key role in building and enhancing platforms that enable engineering teams and control owners to manage and monitor compliance with software development standards and controls.This is an excellent opportunity to work on modern, enterprise-scale applications built using Kotlin, Java, APIs, and Microservices, while contributing to innovative proof-of-concept solutions and business-critical platforms.What You'll Be DoingDesign, develop, and maintain Kotlin and Java-based applications...

Python Developer (DevOps Experience mandatory)

Added 22/09/2026

Overview: Own and evolve our Jenkins Shared Library powering multi-language builds (Java/Maven, Node/NPM, Python, Helm, Terraform, containers). Deliver fast, secure, provenance-rich pipelines (SLSA, SBOM, digests) and strengthen supply‑chain integrity across teams.Core Responsibilities:Design and maintain Groovy pipeline steps (build, test, package, scan, deploy).Extend Python tooling for SLSA provenance, SBOM generation, hash/digest accuracy, and security scan aggregation (SonarQube, Sonatype IQ, SAST/Container).Optimize performance (parallel builds, caching, scope-reduced BOMs, dependency prefetch).Ensure artifact integrity (correct SHA1/SHA256 mapping, reproducible inputs, evidence modeling).Refactor legacy scripts (remove global state, consolidate hashing, standardize templates).Document ci-config.yaml standards and usage patterns.Mentor engineers on secure pipeline development and supply-chain practices.Troubleshoot and prevent...

IAM Developer | GCP | Identity & Access Management | Contract

Added 21/09/2026

One of our leading banking clients is looking for an experienced IAM Developer to join a large-scale Identity & Access Management transformation programme.Key Skills Required:Identity & Access Management (IAM)Auth0, Okta, WorkOS, or similar identity platformsPython, Go, or Node.jsREST API & Micro services developmentGCP (Cloud Run, Cloud Functions, GKE)Pub/Sub / Event-Driven ArchitectureTerraform & CI/CDOAuth2, OIDC, JWT, SAMLNice to Have:ReactKubernetesAzure AD / Entra IDPing IdentityFinancial Services experienceThis is an excellent opportunity to work on a high-profile cloud and identity transformation programme within a global banking environment.If interested, please share your updated CV and contact details. GCS is acting as an Employment Business...

Python Developer - Agentic AI / GenAI - Investment Banking

Added 21/09/2026

Python Developer - Agentic AI / GenAI - Investment BankingLondon, Farringdon | Hybrid | Inside IR35 | ContractWe are looking for a highly experienced Python Developer / AI Engineer to join a consulting engagement delivering Agentic AI and Generative AI solutions within an Investment Banking environment.This is a hands-on development role requiring strong Python engineering alongside proven commercial experience building Agentic AI, LLM and RAG solutions.Key SkillsStrong commercial Python developmentHands-on Agentic AI / AI Agent developmentLLMs / Generative AIRAG (Retrieval-Augmented Generation)OpenAI / GPTAnthropic ClaudeLangChain, LangGraph, AutoGen, CrewAI or similarFastAPI / API developmentAI orchestration, tool calling and guardrailsStrong Investment Banking /...

PLC Developer

Added 16/09/2026

Role- PLC DeveloperLocation- Durham, NCJob Type- ContractContract Duration- 12-Month Contract About the RoleWe are seeking PLC Developer to support the deployment, commissioning, maintenance, and troubleshooting of Building Management Systems (BMS) and Electrical Power Monitoring Systems (EPMS) across mission-critical data center environments.This is an excellent opportunity for controls, automation, instrumentation, HVAC, and electrical professionals looking to work on large-scale infrastructure projects in a rapidly growing data center sector.Key ResponsibilitiesInstall, configure, and commission BMS and EPMS systems.Perform point-to-point testing of sensors, controllers, and HMIs.Troubleshoot controls, automation, and communication issues.Load software and configurations onto controllers, IPCs, and HMIs.Install, replace, calibrate, and validate field...

PLC Developer

Added 16/09/2026

Role- PLC DeveloperLocation- Reston, VA Job Type- ContractContract Duration- 12-Month Contract About the RoleWe are seeking PLC Developer to support the deployment, commissioning, maintenance, and troubleshooting of Building Management Systems (BMS) and Electrical Power Monitoring Systems (EPMS) across mission-critical data center environments.This is an excellent opportunity for controls, automation, instrumentation, HVAC, and electrical professionals looking to work on large-scale infrastructure projects in a rapidly growing data center sector.Key ResponsibilitiesInstall, configure, and commission BMS and EPMS systems.Perform point-to-point testing of sensors, controllers, and HMIs.Troubleshoot controls, automation, and communication issues.Load software and configurations onto controllers, IPCs, and HMIs.Install, replace, calibrate, and validate...

AI Copilot Developer

Added 15/09/2026

AI Copilot Developer - Power Apps - Power platform - Banking - Hybrid Role - AI Copilot DeveloperRate - £490 per day (Inside IR35)Duration - 6 months with very likely extensionLocation - Hybrid / Canary Wharf - 3 days per week in a Canary Wharf officeTech StackCopilotPowerappsPower platformJavascriptRoleDevelopment and support of low code Business applications using Power platform, M365, C#, JavaScript. You will collaborate closely with business analysts, business users and stakeholders to understand requirements, design innovative solutions, and bring them to life through development, testing, and deployment.TasksDesign, develop, test, and deploy AI-powered solutions using Microsoft Copilot Studio, Power Platform,...

Senior C# Developer

Added 15/09/2026

Contract Opportunity | Tier 1 Investment Bank | Canary WharfOverviewOur client, a Tier 1 Investment Bank based in Canary Wharf, is seeking an experienced C# Developer to join a strategic application modernisation programme. This role sits within a technology team responsible for evolving critical business applications, supporting a transition from legacy desktop solutions to modern web-based and cloud-enabled platforms.The successful candidate will work across the full software development lifecycle, contributing to the enhancement of existing applications while helping shape the future-state architecture.Key InformationRole: Senior C# Developer Location: Canary Wharf, London (Hybrid Working) Contract Length: 6 Months Initial Contract Rate: £416...

Full Stack Python Developer

Added 15/09/2026

Role- Full Stack Pythomn DeveloperType- ContractDuration- 12+ monthsLocation- Philadelphia, PAOverview Seeking a Full Stack Python Developer to build AI-driven security automation solutions within a Cyber Security Operations Center (CSOC). This is a hands-on engineering role focused on developing intelligent agents and automated workflows that improve threat detection, investigations, and incident response.Key ResponsibilitiesDesign, develop, deploy, and maintain production-grade security automation and AI-powered workflows.Build AI agents capable of accessing security data, using tools, maintaining context, and executing multi-step tasks.Automate processes across:Threat IntelligenceThreat HuntingDetection EngineeringSecurity InvestigationsIncident ResponseSecurity Data AnalysisApply advanced AI techniques including:Tool CallingRetrieval-Augmented Generation (RAG)Structured GenerationPlanning & ReflectionVerificationModel RoutingMulti-Agent CoordinationDesign memory, context...