Senior Java Developer

Team Creation Limited; Greater London; On-site; GBP 90,000 - 125,000; Full time

Benefits offered by this job

26 days holiday

Pension

Life Assurance (4x salary)

Private Medical Insurance

Team Building

Local discounts

Competitive salary

Job summary

Team Creation Limited is seeking a Senior Java Developer to join our Core Platform Team, building and maintaining scalable backend infrastructure for our back-office system. You will architect backend services powering games, player management, reporting tools, and third-party integrations, in collaboration with Product Owners, Frontend, DevOps, and QA.

As a Senior Java Developer, you will design and implement backend systems to support thousands of concurrent connections, develop modular

Qualifications

• 5+ years of experience in Java software development, backend focus.
• Strong understanding of Spring Framework (Boot, Security, Data).
• Experience building high-concurrency systems and distributed microservices.
• Proficiency in API design and relational databases (PostgreSQL/Oracle).
• Familiarity with Kubernetes, Docker, and cloud environments (AWS, GCP, Azure).
• Experience with monitoring tools (Prometheus, Grafana, ELK).
• Strong communication and collaboration skills.

Responsibilities

• Design backend systems to handle thousands of concurrent connections across services.
• Develop scalable microservices to support game logic, session management, and ops tools.
• Develop APIs and ensure low-latency data processing for game engines.
• Collaborate with product, frontend, DevOps and QA for feature delivery.
• Work with PostgreSQL and Oracle to ensure reliable data operations.
• Manage deployments on Kubernetes with AWS/GCP/Azure integrations.
• Monitor and debug services; write unit and integration tests.
• Produce API, architecture, and deployment documentation.

Skills

Java backend

Spring Framework

High concurrency

Microservices

SQL (PostgreSQL/Oracle)

Kubernetes

Docker

Cloud platforms (AWS/GCP/AZURE)

API design

Communication

Tools

Kubernetes

Docker

AWS

GCP

Azure

PostgreSQL

Oracle

Job description

Company Overview:

Team Creation Limited is a fast-growing software development company operating across Asia and Europe. We provide services including market research, artificial intelligence solutions, cloud computing, and mobile application development for a broad range of international clients. Our focus is on delivering innovative and high-quality technology solutions while supporting the continued growth and development of our professional workforce.

Role Overview:

We are seeking a Senior Java Developer to join our Core Platform Team. This role is critical to building and maintaining the scalable backend infrastructure of our back office system platform, ensuring it can support high-concurrency gameplay, real-time interactions, and a distributed microservices architecture.

As a Senior Java Developer, you will architect and develop backend systems that power our games, player management, reporting tools, and third-party integrations. You will work closely with Product Owners, Frontend Developers, DevOps, and QA to ensure smooth, efficient, and secure platform operations.

Key Responsibilities:

• Design and implement backend systems capable of handling thousands of concurrent player connections across multiple services.




• Develop scalable, modular microservices to support game logic, session management, and operational services.




• API Development.




• Ensure low-latency data processing to support game engines.




• Collaborate with the product team to build new features, improve system performance, and support business requirements.




• Work with relational databases such as PostgreSQL and Oracle to ensure reliable and efficient data operations.




• Manage service deployment on Kubernetes, with integrations into AWS, GCP, or Azure.




• Monitoring & Debugging.




• Write clean, maintainable code with strong unit and integration test coverage. Conduct peer reviews.




• Produce clear documentation for APIs, architecture, and deployment processes.

Qualifications & Skills:

• 5+ years of experience in Java software development, with a focus on backend systems.




• Strong understanding of Spring Framework (Boot, Security, Data, etc.).




• Experience building and maintaining high-concurrency systems.




• Solid background in microservices architecture and API design.




• Proficiency in SQL and experience with relational databases (PostgreSQL, Oracle).




• Familiarity with Kubernetes, Docker, and cloud environments (AWS, GCP, Azure).




• Experience with monitoring tools (e.g., Prometheus, Grafana, ELK, or similar).




• Strong communication and collaboration skills.

We Offer:

• Experience a dynamic and team-orientated work environment




• Opportunities for personal growth and learning




• An open, inclusive and supportive team where you will be valued, and your suggestions will be welcome




• 26 days paid holiday per year, in addition to local public holidays




• Competitive salary




• Risk Benefits such as pension, Life Assurance (4x annual salary), Private Medical Insurance




• Team Building activities




• Local discounts and more...!