Senior Full Stack Developer
- Belgrado
- Breslavia
- Cracovia
- Lodz
- Lublinie
- Remote.Poland
- Varsovia
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Project overview
Position overview
Technology stack
Responsibilities
- Design, develop, and maintain new features and modules across backend and frontend components
- Support, enhance, and continuously improve the existing codebase
- Build deep product knowledge, including its integrations, data flows, and ecosystem
- Investigate and troubleshoot technical issues, working closely with support teams to provide end-to-end solutions
- Collaborate with Product Managers, Software Engineers, QA Engineers, SRE teams, and other stakeholders throughout the development lifecycle
- Create unit and integration tests to ensure software quality and reliability
- Participate in peer code reviews and promote engineering best practices
- Develop and maintain integrations with third-party tools and external systems
Requirements
- 5+ years of commercial experience in full-stack software development
- Strong backend expertise with Java and Spring (Boot, MVC, Data)
- Experience designing and implementing APIs
- Solid knowledge of relational databases, particularly PostgreSQL, including debugging performance and data-related issues
- Strong understanding of OOP principles, design patterns, and Test-Driven Development (TDD)
- Hands-on experience building production-grade applications with React, including hooks, component composition, and performance optimization
- Strong proficiency in TypeScript, including advanced typing and type-safe application design
- Experience working with state management libraries such as MobX, Redux, or similar solutions
- Good understanding of modern build tools and frontend tooling, including Vite or Webpack
- Strong analytical and problem-solving skills with the ability to investigate unfamiliar technical challenges
- High level of ownership and ability to work independently in a remote environment
- Ability to start tasks with incomplete specifications and refine requirements during implementation
- Upper-intermediate (B2+) or higher level of spoken and written English
- Strong communication skills and ability to collaborate effectively in an international environment
Nice to have
- Experience developing applications within the Atlassian ecosystem (e.g. Atlassian Forge)
- Familiarity with analytics, reporting solutions, or data integration protocols
- Experience working with AWS services (EC2, ElastiCache, RDS), Kubernetes, and CI/CD pipelines
- Knowledge of performance optimization techniques and secure coding practices
- Experience supporting customer-facing products and collaborating with support teams
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