We are looking for an experienced Senior Golang Backend Developer to design and build reliable backend services for billing and payment processing systems.
This role requires strong hands-on experience in Go and proven ability integrating with payment providers and financial infrastructure.
You will work on systems responsible for payment processing, billing logic, provider integrations and transaction workflows, ensuring reliability, scalability and correctness of financial operations.
Backend services responsible for billing and payment flows
Integrations with multiple payment providers
Systems handling transactions, retries, reconciliation and provider communication
Focus on high reliability, correctness and observability
Backend stack primarily Golang
Design and develop scalable backend services in Golang
Implement and maintain billing and payment processing logic
Integrate with external payment providers and financial APIs
Build reliable transaction processing pipelines, including retries, reconciliation and error handling
Ensure reliability and correctness of financial operations
Write maintainable and well-tested production code
Monitor and debug payment and transaction flows
5+ years of commercial Golang backend development with solid understanding of Go concurrency and internals
Hands-on experience with billing or payment systems, including at least one of:
Payment provider / gateway integration (Adyen, Stripe, Checkout.com, or similar)
Subscription billing and lifecycle management
Financial reconciliation and transaction matching
Experience working with REST APIs, asynchronous processing, and event-driven systems
Experience with PostgreSQL or similar relational databases
Understanding of transactional systems, data consistency, and idempotency
Ability to write, own, and debug production code in live payment environments
Important: Commercial hands-on experience with payment or billing systems is required.
Experience with multiple payment providers
Experience with subscription billing systems
Experience working with high-load backend systems
Knowledge of distributed systems architecture
Experience with message queues (Kafka, RabbitMQ, etc.)
Experience with observability tools (metrics, tracing, logging)
Strong ownership and accountability
Ability to work independently and make architectural decisions
Attention to reliability and correctness of financial systems
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