Senior Fullstack Consultant

What will you do?

You will join an international engineering team building modern, high-impact digital platforms, taking end-to-end ownership across backend services, APIs, and user-facing applications in an Agile, cloud-native environment, with a strong focus on engineering quality, reliability, and practical delivery.

Daily tasks

• Design, develop, and maintain full-stack applications used by global users.
• Build and evolve backend services and REST APIs primarily in Java with Python used for services, automation, and scripting.
• Develop frontend features using modern JavaScript frameworks such as React.
• Contribute to solution design, technical discussions, and pragmatic trade-offs.
• Deliver changes through CI/CD pipelines and engineering quality gates.
• Write automated tests and participate in code reviews to ensure high quality.
• Support production systems through incident investigation, fixes, and continuous improvement.
• Collaborate closely with product, engineering, and platform or security partners to deliver reliable software.

Requirements

• Strong commercial experience in full-stack software engineering.
• Strong backend expertise in Java (11+ or 17+) with Spring and Spring Boot.
• Working knowledge of Python for services, automation, and scripting.
• Experience designing and building REST APIs and microservices.
• Frontend experience with JavaScript or TypeScript and React or similar frameworks.
• Experience with SQL databases and data modelling such as PostgreSQL or Oracle.
• Familiarity with CI/CD, Git, and DevOps practices.
• Ability to work effectively in Agile teams and communicate in English.
• Openness to hybrid work 2 days a week from our client office (for candidates from Kraków) and 6 days per month for candidates based outside Kraków.

Nice to have

• Experience with cloud platforms such as AWS, Azure, or GCP.
• Docker and Kubernetes experience.
• Experience with messaging or event-driven systems such as Kafka or MQ.
• Monitoring, observability, and production support experience.
• Experience with data validation formats such as JSON or XML and integration testing.

Must have: Java, Spring, Spring Boot, Python, REST API, JavaScript, TypeScript, React, SQL, PostgreSQL, Oracle, CI/CD, Git

Nice to have: Cloud, Docker, Kubernetes, Kafka, Messaging, JSON, Integration test