Senior Full-Stack Developer

🌍Work mode: hybrid (preferably from Krakow or Warsaw): • People from Krakow and Warsaw - 6x per month in the office • People outside of Krakow and Warsaw - 1-2x per month in the office ⏰Start: June/July 2026. 📝Contract: B2B. ⏳Duration: >12 months contracts. 📕Project language: English. 💼Industry: Banking. 📑Workload: Full time. ⚙️Recruitment process: 1h technical screening on zoom. 💻Equipment: Work on emagine or your own equipment. We are looking for a Senior Full-Stack Developer who thrives at the intersection of technical design and hands-on execution. In this role, you will be the technical engine driving key initiatives for integration projects. Unlike a traditional architect role, your focus will be on Solution Design: creating the technical 'how-to' for complex integrations and then leading the end-to-end development. Main Responsibilities: • Draft end-to-end technical designs for API solutions and microservice integration patterns. • Own the full development cycle, ensuring secure, low-latency communication paths between backend systems and UI/UX layers. • Manage the technical integration of platforms using Azure Functions and Service Bus. • Fine-tune Python-based code while having the agility to refactor logic as needed. • Participate in design reviews and incorporate stakeholder feedback. • Support discussions surrounding potential migrations to managed environments. Key Requirements: • 7+ years of hands-on experience in Azure development (Functions, App Insights, APIM, and Service Bus). • Expertise in Python, with strong proficiency in Java or .NET. • A 'quality-first' mindset with extensive experience writing and maintaining unit tests. • Deep expertise in using Application Insights for monitoring and optimizing live applications. • Proven experience in designing and building integration patterns within a CRM context. Nice to Have: • Experience with Google Cloud Platform (GCP). • Prior experience with Highspot, Pendo, or MS Dynamics integrations. Other Details: This position will involve working on integration projects, with potential opportunities for remote collaboration. The role emphasizes hands-on development and strategic planning for future migrations.