Senior Backend Engineer (Java/Kotlin and Go)
Summary
Senior Backend Engineer designs and builds scalable, cloud-native SaaS solutions using Java/Kotlin and Go, mentors engineers, and drives architectural modernization in a fintech context.
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.