Fullstack Developer (Python, Java)
Summary
Fullstack developer building and maintaining APIs, backend services, and frontend features for a financial-sector client using Python, Java, and .NET.
Location: Kraków, hybrid work model – 2 days per week in the office, 3 days remote. Cooperation model: Full-time / B2B. Project for our Client from the financial sector.
What you’ll do
- Backend Development
- Design, develop, and maintain APIs using Python and other relevant frameworks
- Work with SQL databases to create, optimize, and manage queries and data models
- Develop and maintain backend services using Java and .NET frameworks
- Automate infrastructure and deployment processes using Ansible
- Observability and Monitoring
- Implement and configure OpenTelemetry to ensure end-to-end observability of applications
- Instrument code to collect telemetry data (traces, metrics, and logs) for monitoring and troubleshooting
- Collaborate with DevOps and SRE teams to integrate telemetry data into monitoring tools like Prometheus, Grafana, or Splunk
- Frontend Development
- Collaborate with frontend developers to ensure seamless integration between backend services and user interfaces
- Contribute to the design and development of user-facing features
- Web Hosting and Deployment
- Configure and manage IIS (Internet Information Services) for hosting web applications
- Ensure high availability, scalability, and security of hosted applications
- Collaboration and Problem-Solving
- Work closely with cross-functional teams to gather requirements and deliver solutions
- Troubleshoot and resolve issues across the full stack, ensuring optimal performance and reliability
- Code Quality and Best Practices
- Write clean, maintainable, and efficient code
- Follow best practices for version control, testing, and deployment
Requirements
- 5+ years of experience in similar position
- Proficiency in Python, Java, and .NET programming languages
- Strong experience in designing and implementing RESTful APIs
- Expertise in SQL for database design, optimization, and querying
- Hands‑on experience with Ansible for configuration management and automation
- Proficiency in OpenTelemetry for collecting and analyzing telemetry data (traces, metrics, logs)
- Experience with IIS for deploying and managing web applications
- Strong analytical and debugging skills to troubleshoot complex issues
- Fluency in English (both spoken and written)
Benefits
- Private medical care (Luxmed)
- Multisport card
- Collaborative team culture and modern tech stack