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September 12, 2026
Senior Software Engineer
Senior • Remote
Kraków, Poland
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Quick Facts
- Role focuses on designing, developing, and maintaining scalable web applications and APIs.
Description
You will design, develop, and maintain scalable web applications using Python, FastAPI, React, JavaScript/TypeScript, and Node.js.
- Build and maintain REST or GraphQL APIs, including authentication, authorization, validation, and error handling.
- Work with SQL and NoSQL databases (data modelling, migrations, query optimization).
- Use AI coding agents such as Claude Code to accelerate development while maintaining code quality, security, and maintainability.
- Use message queues such as RabbitMQ for asynchronous processing and background jobs.
- Investigate and resolve bugs, production issues, and performance bottlenecks; create technical documentation and contribute to architectural decisions.
Benefits
- Using AI tools to work faster without compromising quality.
- A strong testing mindset and sense of ownership.
- Curiosity and willingness to work across the full application lifecycle.
- Clear communication and constructive collaboration.
- Ability to turn product requirements into reliable, production-ready outcomes.
Requirements
- Practical software development experience gained through professional work, internships, academic projects, open source, or a strong technical portfolio.
- Strong Python skills and experience with FastAPI (or a similar framework).
- Experience with React and JavaScript/TypeScript.
- Experience building back-end services with Python and/or Node.js.
- Experience designing REST or GraphQL APIs.
- Experience writing unit and integration tests.
- Good understanding of SQL, relational databases, and software engineering principles.
- Experience with Git/GitHub and code-review workflows.
- Experience using Claude Code (or a similar AI coding agent).
- Strong analytical, problem-solving, and communication skills.
- Ability to work independently in a remote environment.
- Professional working proficiency in English.
Nice to Have
- Experience with GraphQL and libraries such as Strawberry, Graphene, Ariadne, or Apollo.
- Experience with Playwright (or another E2E testing framework).
- Familiarity with CI/CD, Docker, and cloud platforms such as AWS, Azure, GCP, or DigitalOcean.
- Experience with RabbitMQ, Kafka, Redis, or similar messaging systems.
- Familiarity with Grafana, Sentry, logging, and observability tools.
- Experience integrating AI/ML models into production applications.
- Knowledge of authentication, RBAC, API security, secrets management, and data protection.
- Experience working in an Agile/Scrum product environment.
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