Senior Backend Engineer (Java/Kotlin and Go)

Remote: within India, Ukraine, Georgia or within Eastern Europe
About the Role

We are looking for an experienced Senior Backend Engineer to join our engineering leadership team. In this high-impact individual contributor role, you will leverage your deep expertise in Java/Kotlin and Go to architect and build scalable, enterprise-grade SaaS solutions.
 

You will play a pivotal role in bridging the gap between architectural vision and technical execution, mentoring Junior engineers, and driving cross-functional initiatives in a complex cloud environment. If you are a polyglot engineer with a passion for modernizing stacks and solving difficult scale problems in the Fintech space, we want to hear from you.
 

Key Responsibilities

• Technical Leadership: Lead the design and development of large-scale, cloud-native backend services. Act as a technical authority, guiding the team through complex architectural decisions and trade-offs.
• Architectural Evolution: Drive the modernization of our stack, maintaining a strong foundation in Java/Spring Boot while spearheading new initiatives in Go (Golang).
• Cross-Functional Impact: Lead cross-team and cross-feature initiatives, collaborating closely with Product, DevOps, and Frontend teams to deliver robust enterprise features.
• Mentorship: Mentor mid-level & juniors engineers, fostering a culture of code quality, testing excellence, and creative problem-solving.
• Hands-on Development: Remain hands-on in the code (70/30 split), writing high-performance, maintainable production code.
• Innovation: Research and integrate new technologies (databases, messaging systems, frameworks) to optimize platform performance and scalability.
   

Requirements

• Experience:
  • 10+ years of total backend software development experience.
  • 4+ years of experience specifically as a Senior Engineer, leading technical projects in an enterprise SaaS environment.
• Core Stack:
  • Deep expertise in Java (and/or Kotlin) with a mastery of Spring Boot.
  • Production experience with Go (Golang) – an adventage
• Cloud & Architecture: Extensive experience architecting and maintaining large-scale, cloud-based web applications (Azure) with a strong understanding of microservices.
• Data Infrastructure: Strong understanding of database design (RDBMS & NoSQL) and data infrastructure optimization, as well in Elastic Search.
• Modern Web Ecosystem: Familiarity with the broader stack, including TypeScript, React, and GraphQL.
• Education: Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent experience).
• Soft Skills:
  • Excellent verbal and written communication skills in English.
  • A collaborative, team-oriented mindset with the ability to navigate diverse stakeholder requirements.
     

Advantages (Nice to Have)

• Fintech Domain Expertise: Prior experience building financial technology products, payments systems, or trading platforms.
• Experience with event-driven architectures (Kafka, RabbitMQ, NAST).
• Background in migrating monolithic applications to microservices.

What We Offer

• The opportunity to work on high-scale challenges where performance matters.
• A culture that values engineering excellence and autonomy.