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Solvd, Inc.

Senior Software Engineer (Kotlin, Stripe)

Solvd, Inc.
Poland · Full-time · Mid-Senior

We are looking for a Senior Software Engineer (Java, Kotlin with Stripe experience) to join our growing team.


Responsibilities


  • Develop and maintain the server-side logic of our applications using Java.
  • Implement efficient and performant backend code for high-volume production applications.
  • Conduct performance testing and tuning to improve system efficiency and scalability.
  • Monitor application health and reliability in production environment.
  • Collaborate with the frontend development team to integrate user-facing elements with server-side logic.
  • Contribute to all phases of the development lifecycle, from concept to deployment.
  • Review and refactor code, establishing best practices for code hygiene and organization.
  • Provide mentorship to less-experienced developers, fostering an environment of continuous learning and improvement.


Mandatory requirements


  • 5+ years of backend development experience.
  • Strong proficiency in Java and Kotlin, with a good knowledge of its ecosystems.
  • Proficiency with Java frameworks such as Spring and Hibernate.
  • Experience with microservice application development.
  • Experience with RESTful API design and server-side implementation.
  • Proficient understanding of code versioning tools, such as Git.
  • Experience with CI/CD tools and practices.
  • Understanding of performance troubleshooting and debugging tools.
  • Strong experience with RDBMS and message brokers.
  • Experience with Stripe is critical.
  • English: B1+.
  • Strong communication and team collaboration skills.
  • Ability to learn quickly and adapt to new technologies.
  • Passion for writing clean, efficient, and maintainable code (and encouraging others to do so).


Optional requirements


  • Experience with integration of GenAI LLMs into productions (ideally) or pet projects at least (OpenAI, Azure OpenAI, Bard, llama) is a nice to have.
  • Previous experience leading dev team is a plus.
  • Experience interviewing candidates from the market is a plus.
  • Experience with containerization and orchestration tools like Docker and Kubernetes is considered a strong advantage.
  • Experience with core AWS services is a plus (EC2, S3, RDS) or core Azure services is considered a strong advantage.

Key Skills

Ranked by relevance

server java containerization kubernetes kotlin docker cicd aws s3
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Posted
Jun 02, 2025
Type
Full-time
Level
Mid-Senior
Location
Poland

Industries

IT Services IT Consulting

Categories

Engineering

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