Project Info

We are looking for a Senior Java Developer for our client, based in Kraków and surrounding areas. The project involves developing a large-scale communication platform in the travel industry that generates traveler documents and delivers time-critical notifications via email and SMS (over 1 million emails and approximately 100,000 SMS messages daily).

The system is responsible for informing travelers about schedule changes, web check-in availability, and flight status (from 24 hours before departure up to the departure time), as well as collecting post-trip feedback.

Job Requirements

• Deep expertise in Java and JVM performance; significant experience designing event driven systems at millions per day scale.
• Handson Spring Boot microservices, asynchronous messaging, API design, and data stores (SQL/NoSQL, caching), Google GCP experience.
• Proven track record with HA, disaster recovery, multiregional patterns, and observability first design.
• Knowledge of email/SMS ecosystems (MTA, deliverability, anti abuse, link tracking, templating, internationalization).
• Security and compliance awareness (PII, GDPR, CAN-SPAM), static analysis workflows (e.g., Veracode).
• Ability to influence across product/engineering; excellent written design documentation.

Nice to have

• Experience enabling new channels (RCS/WhatsApp), running canary/feature flags, and cost/perf optimization on cloud Kubernetes.

Must possess a legal work permit in Poland

General benefits - depends on the form of employment

• Hybrid work model combining office & remote work
• Attractively located office with collaboration spaces
• Onsite parking space for employees
• Referral program with financial bonus
• Life Insurance
• Budget for development (including language courses and others), clear career path with the possibility to gain experience in international environment
• Access to internal Learning Platform with multiple trainings oriented for professional growth

Lifestyle benefits:

• Access to MyBenefit platform (Multisport included)
• Team Building activities
• Charity initiatives
• Working environment promoting diversity and inclusion

Health benefits:

• Private medical care - Platinum Package