Senior Backend Engineer (Golang) – Blockchain/Fintech
Join a global fintech leader as a Senior Backend Engineer (Golang) — work on blockchain payment systems at scale, tackle high-load challenges, and help shape the future of Web3.
About the Client
Our client is a global fintech company at the forefront of crypto and Web3 payments adoption. Headquartered in Europe with international hubs, the company operates fully remotely with team members across 30+ countries. Recognized multiple times for its innovation, the company is committed to delivering secure, scalable, and regulation-ready crypto payment solutions for businesses worldwide. The culture is remote-first, collaborative, and growth-oriented, with a strong passion for the blockchain industry.
About the Role
We are seeking a Senior Backend Engineer (Golang) with proven blockchain/Web3 experience to strengthen the backend team. This role is fully focused on backend engineering: designing, building, and maintaining high-load fintech systems that process crypto payments and transactions at scale. You will work with complex algorithms, performance optimization, and security challenges, while collaborating closely with product, QA, and DevOps teams. This is a hands-on position where you will not only code but also mentor others and influence key architectural decisions.
Key Responsibilities
Develop robust, scalable, and reusable backend services in Golang.
Ensure high-quality code with unit tests and regular reviews.
Collaborate with QA engineers and cross-functional teams to deliver secure, stable features.
Troubleshoot and optimize backend services for performance and reliability.
Implement monitoring, alerts, and metrics for stable operations.
Contribute to requirements and architecture discussions, ensuring alignment with product goals.
Mentor junior engineers and promote knowledge sharing.
Requirements
3+ years of Golang as a primary working language (5+ years overall backend experience).
Proven experience with blockchain/Web3 or crypto-related products.
Proficiency with message queues (Kafka, NATS, RabbitMQ, etc.).
Experience with Docker, Kubernetes, CI/CD pipelines (ArgoCD, GitLab or similar).
Strong SQL skills (MySQL or similar databases).
Knowledge of observability tools: Prometheus, Grafana, ELK, Opsgenie.
Background in software engineering best practices (testing, code reviews, documentation).
Solid English communication skills (Russian is a plus).
Nice to Have
Experience mentoring or onboarding engineers.
Exposure to high-load fintech or payments environments.
Strong passion for blockchain/Web3 and crypto adoption.
What’s in it for you?
Be part of a fast-scaling fintech company recognized as a leader in crypto payments.
Join a remote-first international team spread across 30+ countries.
Work on high-impact blockchain and Web3 products shaping the future of digital assets.
Competitive compensation and performance-based bonuses.
Flexible remote work setup and opportunities for professional growth.
👉 Apply in 2 minutes to join a global fintech team building the future of blockchain payments.
- Department
- Join Product Development
- Role
- Backend Developer
- Locations
- Warsaw
- Remote status
- Fully Remote
- Compensation Package
- TBD

About Evotym
Evotym is dedicated to building exceptional teams for growing companies.
As a leading Fintech Staffing and Recruitment agency, we connect top-tier talent with Fintech companies, driving their success and growth. Our expertise in the sector allows us to understand its unique challenges and opportunities, ensuring we match the best-fit candidates with our clients.
Join us and be part of a dynamic team and make an impact in the fintech industry.