Senior Full-Stack Developer (Tech Lead)

Quick Facts

• Role: Senior Full-Stack Developer (Tech Lead)

• Focus: Backend development and technical leadership

Description

You will actively develop systems supporting Model Risk Management and Operational Risk Management. The role is full-stack but strongly backend-oriented: designing and building microservices, APIs, and event-driven architectures, plus working on BPMN-based workflows and ensuring production-ready quality. You will also provide technical support and leadership for other team members.

Responsibilities

• Design and develop backend services

• Build APIs and integrations

• Create microservices

• Design technical solutions and prepare technical documentation and diagrams

• Develop BPMN-based workflow capabilities

• Improve application quality, testing, and production readiness

• Provide technical support to the team

Requirements

• 8+ years of commercial experience in building enterprise applications (backend-focused)

• 2+ years in technical leadership: mentoring or technical ownership

• Expert knowledge of Java and Spring (Boot, Data, REST, Security, Profiles)

• Experience with microservice design and deployment

• Experience with event-driven architecture

• Ability to design solutions and create technical documentation and diagrams

• Practical React and TypeScript experience for hands-on frontend contribution

• API design and documentation using Swagger/OpenAPI

• Strong automated testing practices (unit and integration tests)

• Experience with batch processing

• Knowledge of logging, error handling, and production readiness

• Practical experience with Docker and Kubernetes

• Experience deploying solutions in cloud environments

• Experience with code scanning and fixing quality/security issues

• Experience in Agile/Scrum using Jira and Confluence

• English: at least B2

• Strong communication skills and ability to support teammates technically

• Ability to solve complex technical problems

• Independence, proactivity, and responsibility for delivered solutions

Benefits

• Hybrid work model with office presence in Kraków 6 times per month