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 (Kotlin or Neo4j)

Added 01/10/2026

Experience in Kotlin (or significant Java experience with a willingness to learn Kotlin)Experienced in API development, SQL/databases, HTML/JavascriptExcellent writing skills and attention to detail in codeProactive person who will not wait to be told what to do next or be unblocked by othersExperience working with standard developer collaboration Tools: Github/Bitbucket, Jira, Confluence, etcThe Developer Experience (DevX) Standards and Controls function is building a platform for control owners and development teams to manage/view their compliance with a range of software development controls.The candidate would be working on Kotlin and Java-based web applications and APIs. There are 2-3 applications and PoCs we...

Java Developer (with Neo4J)

Added 28/09/2026

Job titleJava Developer with Neo4jJob TypeContract (6 Months)Client / IndustryBank Required: Languages: Java 11+, HTML5, JavaScriptFront-End Frameworks: AngularAPIs: RESTful API DesignDatabases: Neo4j, PostgreSQLTesting: Junit, Mockito, CucumberBuilding: MavenTooling: GitHub, JIRA, Confluence, GitHub Copilot The Developer Experience (DevX) Standards and Controls function is building a platform for control owners and development teams to manage/view their compliance with a range of software development controls. The candidate would be working on re-platforming an application from a vendor platform (PCF) over to an internal bring your own code (BYOC) platform as well as modernising the application and resolving dependency issues. YOUR RESPONSIBILITIESCollaborate with developers, testers...

Java Developer

Added 22/09/2026

Required: Languages: Java 11+, HTML5, JavaScriptFront-End Frameworks: AngularAPIs: RESTful API DesignDatabases: Neo4j, PostgreSQLTesting: Junit, Mockito, CucumberBuilding: MavenTooling: GitHub, JIRA, Confluence, GitHub CopilotThe Developer Experience (DevX) Standards and Controls function is building a platform for control owners and development teams to manage/view their compliance with a range of software development controls.The candidate would be working on re-platforming an application from a vendor platform (PCF) over to an internal bring your own code (BYOC) platform as well as modernising the application and resolving dependency issues.YOUR RESPONSIBILITIES Collaborate with developers, testers and the wider organisation to build and run productsDesign, develop & implement...

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 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 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...

Azure Ops Engineer - Contract

Added 12/10/2026

Azure Operations Engineer We are seeking an experienced **Azure Operations Engineer** to support the management, maintenance and ongoing improvement of a cloud infrastructure environment.This role will suit an engineer with strong hands-on experience across Microsoft Azure, infrastructure operations, identity management and cloud security. You will be responsible for maintaining a secure, reliable and well-performing environment, troubleshooting complex technical issues and supporting the continuous improvement of cloud operations.This is an infrastructure-focused position, ideal for someone with a strong Azure engineering background who enjoys working across cloud services, systems administration, security and automation.## Key Responsibilities- Manage, maintain and support Microsoft Azure infrastructure...

Fully Remote | Contract | Active SC Clearance Required

Added 05/10/2026

We're looking for an experienced Integration Developer with strong SSIS, SQL Server, Azure Data Factory, and Logic Apps expertise to support enterprise-wide integration projects.Key Skills:SSIS & SQL ServerAzure Data FactoryLogic AppsC# (SSIS Script Tasks)REST/SOAP APIsXML & JSONSystem-to-system integrationsEvent-driven interfacesEssential: ✅ Active SC Clearance ✅ Strong SSIS experience in transactional/system integration environments (not just reporting or data warehousing)Location: Fully Remote Type: ContractIf you have a proven track record delivering enterprise integrations and are available for a new contract opportunity, I'd be keen to speak with you. Please apply with your latest CV. GCS is acting as an Employment Business in relation...

Agile Coach - Release Train - Contract

Added 02/10/2026

Agile Coach / Consultant - Release Train 6-Month Contract We are looking for an experienced Agile Coach / Consultant to support a major programme, with a particular focus on Agile Release Train delivery and coaching.You will work closely with delivery teams, leadership and key stakeholders to improve Agile ways of working, strengthen delivery practices and help teams operate effectively across a complex programme environment. Key experience:Strong background as an Agile Coach / Agile ConsultantExperience working with Agile Release TrainsStrong knowledge of SAFe / scaled Agile environmentsExperience coaching teams and senior stakeholdersFacilitation of PI Planning and wider Agile ceremoniesAbility to identify...

Enterprise Security Architect - 12M Contract

Added 01/10/2026

Enterprise Cyber Security Architect We are seeking an experienced Enterprise Cyber Security Architect to support the development and delivery of cyber security architecture across a large, complex organisation operating critical technology environments.This is a 12-month contract opportunity, with the successful candidate providing senior security architecture leadership across enterprise IT, cloud and operational technology environments. The role will work closely with architecture, engineering, project and security teams to ensure security is embedded into major technology programmes and change initiatives.Key ResponsibilitiesDevelop and maintain the enterprise Cyber Security Architecture roadmap, standards, principles and reference architectures.Provide security architecture guidance and assurance across major projects,...

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...

Cloud Security Engineer - 12M Contract

Added 21/09/2026

Cloud Security EngineerLocation: Dublin City Centre 12 Month ContractAn established organisation undergoing significant technology modernisation is seeking an experienced Cloud Security Engineer. This role is ideal for an engineer with extensive Microsoft cloud security expertise, strong cybersecurity awareness, and experience operating within ITIL-aligned environments.Key ResponsibilitiesThe successful candidate will have experience across cloud infrastructure, cybersecurity, and enterprise IT operations, including:Configuration and administration of Microsoft Entra ID (Azure AD), including Conditional Access, Identity Governance and Multi-Factor Authentication.Implementation and management of Privileged Identity Management (PIM) and Role-Based Access Control (RBAC).Deployment and administration of Microsoft Intune for endpoint management, compliance, application deployment and device...

Growth Marketing Manager :: London :: Contract :: Hybrid

Added 18/09/2026

We're looking for a data-driven Performance Marketing Manager to lead full-funnel media campaigns across Meta, TikTok, Amazon, Google and Programmatic channels.You'll own audience strategy, first-party data activation, attribution, measurement, ROAS optimisation, and campaign performance, helping shape how marketing investment drives measurable business outcomes.📍 London (Hybrid) | 📅 5-Month ContractKey Skills✅ Performance Marketing / Paid Media ✅ Audience Segmentation & First-Party Data ✅ Attribution & Incrementality Testing ✅ ROAS, CPA, MER & Media Effectiveness ✅ GA4, Adobe Analytics, GTM ✅ Pixels, CAPI & Server-Side Tracking ✅ Meta, TikTok, Amazon, DV360Ideal BackgroundPerformance Marketing Manager | Growth Marketing Manager | Media Effectiveness Manager...