Senior Full Stack Developer

Role: Full Stack Java Developer

Required Skills: Java, Spring, React TypeScript, and AWS

Location: Krakow Poland

Type: B2b/UoP

Project description

Client Custom Messaging generates traveler documents and delivers time critical notifications via email and SMS—at scale (daily >1M emails and ~100k SMS). It informs travelers about schedule changes, web check in eligibility, and flight status from T-24 through departure, and collects post trip feedback.

Job description

• Deliver end‑to‑end features across Java/Spring Boot services and React/TypeScript front‑ends.
• Design clean APIs and data contracts; implement event‑driven integrations and resilient error handling.
• Own quality with automated tests at multiple layers and contribute to CI/CD pipelines.
• Collaborate closely with Product/Design to iterate quickly from discovery to production.
• Proficiency in Java and React/TypeScript with solid understanding of distributed systems and web fundamentals.
• Experience with REST, messaging (e.g., Kafka), SQL/NoSQL and containerized deployments.
• Pragmatic testing mindset and effective code review habits.
• Exposure to email/SMS deliverability and localization at scale.
• Experience building internal admin tooling and dashboards.