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Full Stack Java Developer - Contract
Added 02/09/2026
Reference: 09103JAVAFULL_1788378758

Full Stack Java DeveloperContract | HybridWe're seeking a senior Full Stack Java Developer to join a high-performing engineering... Read more

Full Stack Java Developer

Contract | Hybrid

We'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 testing practicesGitLab and CI/CD pipeline implementationOpenAPI Specification (OAS) and YAMLAWS cloud engineering experienceSecure coding and application security best practicesDevOps and Continuous Delivery methodologies

This is an excellent opportunity to work on large-scale digital transformation programmes using modern engineering practices and cloud technologies.

Apply now for immediate consideration, interviews to take place next week

GCS is acting as an Employment Business in relation to this vacancy.

Read less
Negotiable

London, England, United KingdomContractRemote

Java Full stack developer
Added 04/06/2026
Reference: Ref34567_1780560623

We are excited to announce a fully remote opportunity with a leading financial client based in Poland. We're... Read more

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

This is a fantastic chance to work with a financial industry leader, contribute to cutting-edge projects, and collaborate with a global team-all from the comfort of your home.

GCS is acting as an Employment Business in relation to this vacancy.

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£30.00 - £40.00
Per hour

PolandContract

Sr. Full Stack Java Developer
Added 19/05/2026
Reference: 56326_1779226993

🚀 Senior Full Stack Developer - IAM📍 Locations: Atlanta 📄 Type: 12+ months ContractWe're looking for a Senior... Read more

🚀 Senior Full Stack Developer - IAM

📍 Locations: Atlanta
📄 Type: 12+ months Contract

We're looking for a Senior Full Stack Developer to build and support secure IAM (Identity & Access Management) applications in a cloud-first environment.

🔧 Key ResponsibilitiesDevelop secure full stack applications (Angular + Java/Spring Boot)Build and maintain REST APIsImplement authentication & authorization (OAuth2, OIDC, JWT)Support AWS cloud-native and migration initiativesCollaborate with cross-functional teams and lead technical efforts✅ RequirementsStrong experience in Angular (latest versions) + Java 17 + Spring BootHands-on AWS (Lambda, S3, ECS/Fargate, DynamoDB)Solid understanding of IAM & security best practicesExperience with Spring Security & secure API designKnowledge of MySQL, MongoDB, RedisProven ability to lead and mentor teams⚠️ Must Have

✅ IAM / Security experience
✅ Full stack expertise
✅ Cloud (AWS) experience
✅ Leadership mindset

GCS is acting as an Employment Business in relation to this vacancy.

Read less
$75.00 - $80.00
Per hour

Atlanta, Georgia, United States of AmericaContractRemote

Sr. Full Stack Java Developer
Added 19/05/2026
Reference: 56327_1779226932

🚀 Senior Full Stack Developer - IAM📍 Location: Philadelphia, PA (Remote Available) 📄 Type: Long-Term ContractWe're looking for... Read more

🚀 Senior Full Stack Developer - IAM

📍 Location: Philadelphia, PA (Remote Available)
📄 Type: Long-Term Contract

We're looking for a Senior Full Stack Developer to build and support secure IAM (Identity & Access Management) applications in a cloud-first environment.

🔧 Key ResponsibilitiesDevelop secure full stack applications (Angular + Java/Spring Boot)Build and maintain REST APIsImplement authentication & authorization (OAuth2, OIDC, JWT)Support AWS cloud-native and migration initiativesCollaborate with cross-functional teams and lead technical efforts✅ RequirementsStrong experience in Angular (latest versions) + Java 17 + Spring BootHands-on AWS (Lambda, S3, ECS/Fargate, DynamoDB)Solid understanding of IAM & security best practicesExperience with Spring Security & secure API designKnowledge of MySQL, MongoDB, RedisProven ability to lead and mentor teams⚠️ Must Have

✅ IAM / Security experience
✅ Full stack expertise
✅ Cloud (AWS) experience
✅ Leadership mindset

GCS is acting as an Employment Business in relation to this vacancy.

Read less
$75.00 - $80.00
Per hour

Philadelphia, Pennsylvania, United States of AmericaContractRemote

Sr. Full Stack Java Developer
Added 19/05/2026
Reference: 56323_1779226442

🚀 Senior Full Stack Developer - IAM📍 Locations: Chicago 📄 Type: 12+ months ContractWe're looking for a Senior... Read more

🚀 Senior Full Stack Developer - IAM

📍 Locations: Chicago
📄 Type: 12+ months Contract

We're looking for a Senior Full Stack Developer to build and support secure IAM (Identity & Access Management) applications in a cloud-first environment.

🔧 Key ResponsibilitiesDevelop secure full stack applications (Angular + Java/Spring Boot)Build and maintain REST APIsImplement authentication & authorization (OAuth2, OIDC, JWT)Support AWS cloud-native and migration initiativesCollaborate with cross-functional teams and lead technical efforts✅ RequirementsStrong experience in Angular (latest versions) + Java 17 + Spring BootHands-on AWS (Lambda, S3, ECS/Fargate, DynamoDB)Solid understanding of IAM & security best practicesExperience with Spring Security & secure API designKnowledge of MySQL, MongoDB, RedisProven ability to lead and mentor teams⚠️ Must Have

✅ IAM / Security experience
✅ Full stack expertise
✅ Cloud (AWS) experience
✅ Leadership mindset

GCS is acting as an Employment Business in relation to this vacancy.

Read less
$75.00 - $80.00
Per hour

Chicago, Illinois, United States of AmericaContractRemote

Sr. Full Stack Java Developer
Added 19/05/2026
Reference: 56325_1779226394

🚀 Senior Full Stack Java Developer - IAM📍 Locations: Austin 📄 Type: Long-Term ContractWe're looking for a Senior... Read more

🚀 Senior Full Stack Java Developer - IAM

📍 Locations: Austin
📄 Type: Long-Term Contract

We're looking for a Senior Full Stack Developer to build and support secure IAM (Identity & Access Management) applications in a cloud-first environment.

🔧 Key ResponsibilitiesDevelop secure full stack applications (Angular + Java/Spring Boot)Build and maintain REST APIsImplement authentication & authorization (OAuth2, OIDC, JWT)Support AWS cloud-native and migration initiativesCollaborate with cross-functional teams and lead technical efforts✅ RequirementsStrong experience in Angular (latest versions) + Java 17 + Spring BootHands-on AWS (Lambda, S3, ECS/Fargate, DynamoDB)Solid understanding of IAM & security best practicesExperience with Spring Security & secure API designKnowledge of MySQL, MongoDB, RedisProven ability to lead and mentor teams⚠️ Must Have

✅ IAM / Security experience
✅ Full stack expertise
✅ Cloud (AWS) experience
✅ Leadership mindset

GCS is acting as an Employment Business in relation to this vacancy.

Read less
$75.00 - $80.00
Per hour

Austin, Texas, United States of AmericaContractRemote

Sr. Full Stack Java Developer
Added 19/05/2026
Reference: 56324_1779226228

🚀 Senior Full Stack Java Developer - IAM📍 Locations: New York City 📄 Type: Long-Term ContractWe're looking for... Read more

🚀 Senior Full Stack Java Developer - IAM

📍 Locations: New York City
📄 Type: Long-Term Contract

We're looking for a Senior Full Stack Developer to build and support secure IAM (Identity & Access Management) applications in a cloud-first environment.

🔧 Key ResponsibilitiesDevelop secure full stack applications (Angular + Java/Spring Boot)Build and maintain REST APIsImplement authentication & authorization (OAuth2, OIDC, JWT)Support AWS cloud-native and migration initiativesCollaborate with cross-functional teams and lead technical efforts✅ RequirementsStrong experience in Angular (latest versions) + Java 17 + Spring BootHands-on AWS (Lambda, S3, ECS/Fargate, DynamoDB)Solid understanding of IAM & security best practicesExperience with Spring Security & secure API designKnowledge of MySQL, MongoDB, RedisProven ability to lead and mentor teams⚠️ Must Have

✅ IAM / Security experience
✅ Full stack expertise
✅ Cloud (AWS) experience
✅ Leadership mindset

GCS is acting as an Employment Business in relation to this vacancy.

Read less
$75.00 - $80.00
Per hour

United States of AmericaContractRemote

Sr. Full Stack Java Developer
Added 19/05/2026
Reference: 56322_1779225529

🚀 Senior Full Stack Java Developer - IAM📍 Locations: San Francisco 📄 Type: 12+ months ContractWe're looking for... Read more

🚀 Senior Full Stack Java Developer - IAM

📍 Locations: San Francisco
📄 Type: 12+ months Contract

We're looking for a Senior Full Stack Developer to build and support secure IAM (Identity & Access Management) applications in a cloud-first environment.

🔧 Key ResponsibilitiesDevelop secure full stack applications (Angular + Java/Spring Boot)Build and maintain REST APIsImplement authentication & authorization (OAuth2, OIDC, JWT)Support AWS cloud-native and migration initiativesCollaborate with cross-functional teams and lead technical efforts✅ RequirementsStrong experience in Angular (latest versions) + Java 17 + Spring BootHands-on AWS (Lambda, S3, ECS/Fargate, DynamoDB)Solid understanding of IAM & security best practicesExperience with Spring Security & secure API designKnowledge of MySQL, MongoDB, RedisProven ability to lead and mentor teams⚠️ Must Have

✅ IAM / Security experience
✅ Full stack expertise
✅ Cloud (AWS) experience
✅ Leadership mindset

GCS is acting as an Employment Business in relation to this vacancy.

Read less
$75.00 - $80.00
Per hour

San Francisco, California, United States of AmericaContractRemote

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