Hybrid Tech Lead – Java, Ruby

Posted last week

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About the role

  • Lead the architectural transformation and re-platforming of the corporate banking application.
  • Design, build, and maintain secure, high-quality backend services and APIs, ensuring seamless integration with new React-based frontends.
  • Guide the migration of business logic and data from Ruby on Rails to Java microservices, ensuring reliability, maintainability, and performance.
  • Collaborate with cross-functional teams (Product, DevOps, QA, Frontend) to define requirements, refine architecture, and deliver value continuously.
  • Drive best practices in code quality, automated testing, CI/CD, and cloud deployment (AWS).
  • Mentor and support engineers, fostering a culture of technical excellence and continuous improvement.
  • Participate in technical spikes, architecture reviews, and strategic planning for scaling the platform.
  • Ensure compliance with security, regulatory, and quality standards in a regulated banking environment.

Requirements

  • Proven experience as a Technical Lead, Software Architect, or Senior Engineer designing and building scalable, distributed systems in Java and Spring Boot.
  • Hands-on experience with Ruby on Rails (legacy systems, migrations, or interoperability).
  • Strong knowledge of microservices architecture, RESTful API design, and cloud-native development (preferably AWS).
  • Experience with database scaling strategies (multi-tenancy, partitioning, replication).
  • Familiarity with React or willingness to collaborate closely with frontend teams.
  • Proficiency with DevOps practices, CI/CD pipelines, and containerization.
  • Excellent collaboration and communication skills; ability to lead by example and mentor others.
  • Fluent English is required in spoken and written communication.

Benefits

  • Flexibility. Flexible working hours, Hybrid work, and the possibility to work from anywhere in the EU, Iceland, Switzerland, and the UK (in total 90 days per year).
  • Additional weeks of vacation are available to all employees who have been in the company for 1 year or more.
  • Volunteer time off. We care about giving back to society, therefore, you will get additional days off for volunteering purposes.
  • Paid leave. We are proud of our employees who are participating in military training. Therefore, Luminor offers 30 fully paid calendar days for military training every year.
  • A competitive benefits package in addition to your salary that includes health insurance after the first 3 months pass in all three Baltic states, as well as Health days in case of your absence due to sickness without a doctor's note needed.
  • Access to tools and resources that help you feel good and be productive at work and in life.
  • Internal and external training programs, workshops, conferences, online training, etc.
  • Enjoy special offers & pricing for products and services provided by Luminor.

Job title

Tech Lead – Java, Ruby

Job type

Experience level

Senior

Salary

€4,480 - €6,720 per month

Degree requirement

Bachelor's Degree

Location requirements

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