Senior Java Developer
Kindgeek
Kindgeek is looking for an experienced and thoughtful Senior Java Developer who brings depth, curiosity, and craft to every line of code. Your mission will be to grow and shape a live fintech product used by 100,000+ users — working directly with the client, making technical decisions that matter, and owning them with confidence. This is a role for someone who doesn’t just write code but shapes solutions.
We're Looking For a Senior Java Developer Who Has
The client is a UK-based fintech business that partners with leading UK banks and companies to deliver digital and physical credit cards and other financing services. The platform is a white-label solution — simple on the surface, complex under the hood — with robust security measures protecting sensitive financial data and the flexibility to be customised for each client’s customers. The product is live, actively used by 100,000+ users, and continuously evolving with a strong focus on technical improvements and AI.
We're Looking For a Senior Java Developer Who Has
- 5+ years of relevant experience in the IT industry;
- Strong knowledge of Java Core, OOP/OOD, and design patterns;
- Hands-on experience with the Spring Framework (IoC, templates) and ORM/Hibernate (Spring Data JPA);
- Solid SQL knowledge and experience with at least one RDBMS;
- Practical understanding of microservice architecture patterns;
- Experience working with REST and SOAP APIs;
- Experience with message brokers, particularly Kafka;
- Hands-on experience with AI tools in practice: using LLMs for coding assistance, integrating AI APIs, or building AI-powered features — not just awareness, but regular use;
- Experience in the fintech or banking domain — understanding of financial processes, compliance considerations, or payment systems;
- Upper-intermediate or higher English level — able to communicate ideas, designs, and documentation clearly and concisely.
- Experience with Vault for secrets management;
- Familiarity with Kubernetes, Terraform, and Helm.
- Contribute to implementing solution code with great attention to detail while fulfilling Java development best practices;
- Write reusable and testable code, create functional and practical technical documentation;
- Work closely with other team members and the client to implement designs – we are developing a product from scratch. Thus, we communicate directly with the management of the client company;
- Proactively address technical issues and risks that could impact the project schedule and integrity of the application environment.
The client is a UK-based fintech business that partners with leading UK banks and companies to deliver digital and physical credit cards and other financing services. The platform is a white-label solution — simple on the surface, complex under the hood — with robust security measures protecting sensitive financial data and the flexibility to be customised for each client’s customers. The product is live, actively used by 100,000+ users, and continuously evolving with a strong focus on technical improvements and AI.
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