Senior Backend Developer

  • 360 Code Lab Sp. z o.o.
  • Warsaw
  • 19 000 - 22 000 PLN net / month
  • B2B


Experience level: Senior

Technical requirements:

  • Experience in Java (5+ years)
  • Experience in Kotlin would be a plus
  • ElasticSearch knowledge
  • Experience working with third-party developer tools (e.g., APIs, SDKs, client libraries)
  • Experience with relational databases
  • Thorough understanding of web protocols
  • Familiar with Linux Operating systems
  • Experience with Docker
  • Experience with AWS would be a plus
  • Interested in DevOps

Skills requirements:

  • Bachelor‘s or Master's degree in engineering, information technology, data communications, telecommunications, computer science, or equivalent educational or professional experience and/or qualifications
  • Strong analytical and conceptual skills, with a curious mind for troubleshooting and building software
  • Focused on automatization and microservice architecture
  • Ability to understand business requirements and translate them into technical requirements
  • A solid understanding of software development life cycle (SDLC) and programming fundamentals
  • Strong interest in new technologies and willingness to learn and curiosity
  • Hands-on mentality & Can-Do-Attitude with a knack for benchmarking and optimization
  • Excellent oral and written communication skills and an ability to work with technical and non-technical staff
  • Fluency in English, both written and verbal

Only CVs in English will be considered.


Necessary on this position:
  • Java
  • ElasticSearch
  • Linux
  • Docker
  • DevOps
  • Kotlin
  • AWS

Project you can join

Main activities:

  • Design, implement or improve features in a variety of backend systems including our REST APIs, microservices, data ingestion and processing systems
  • Write and maintain scalable, performant code that can be shared across platforms
  • Meaningfully contribute to the product and core backend systems by suggesting and executing improvements
  • Improve engineering standards, tooling, and processes
  • Practice test-driven development
  • Debug production issues across services and multiple levels of the stack


  • Laptop
  • PC
  • Additional monitor
  • Headphones
  • Personal container
  • Phone
  • Freedom to pick your tools
  • Operating system

Work environment

  • Tech supervisor
  • Open space
  • Separate rooms
  • Dress code
  • Flexible working hours
  • Business trips: Usually once per quarter


  • Healthcare package
  • Healthcare package for families
  • Leisure package
  • Leisure package for families
  • Cold beverages
  • Hot beverages
  • Fruits
  • Snacks
  • Lunches
  • Adaptation tips
  • Language courses
  • Temporary housing
  • Help finding an apartment
  • Visa Services
  • Sign up bonus
  • Flight ticket
  • Money for moving expenses
  • Conferences
  • Trainings
  • Books
  • Car parking
  • Bicycle parking
  • Shower
  • Chill room
  • Playroom for children
  • Integration events

Contact this employer

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