Block Labs
Crypto • Web 3 • B2B
Block Labs is a Web3-focused builder, investor, and marketing partner for blockchain projects. The company provides end-to-end blockchain development (smart contracts, decentralized wallets, NFT exchanges, payment gateways), web3-native marketing (social management, influencer/KOL campaigns, paid media, PR, partnerships), and investment support from seed to Series A. Block Labs works with founders to accelerate growth through technical development, go-to-market strategies, and strategic capital, operating from Sofia, Bulgaria.
Senior Software Engineer – Go
November 24
Block Labs
Crypto • Web 3 • B2B
Block Labs is a Web3-focused builder, investor, and marketing partner for blockchain projects. The company provides end-to-end blockchain development (smart contracts, decentralized wallets, NFT exchanges, payment gateways), web3-native marketing (social management, influencer/KOL campaigns, paid media, PR, partnerships), and investment support from seed to Series A. Block Labs works with founders to accelerate growth through technical development, go-to-market strategies, and strategic capital, operating from Sofia, Bulgaria.
📋 Description
• Design and build distributed backend services that power a multi-tenant cashier and transaction management system. • Develop core platform features for wallet orchestration, payment routing, reconciliation, and tenant onboarding. • Integrate with blockchain networks, payment gateways, and third-party crypto APIs. • Collaborate with product, frontend, and infrastructure teams to deliver reliable, end-to-end systems. • Contribute to architectural design and drive technical decisions across services. • Ensure scalability, fault-tolerance, and compliance within a regulated financial context. • Maintain clean, testable, and well-documented Go code following industry best practices.
🎯 Requirements
• 6+ years of experience in backend development, ideally in high-throughput or financial systems. • Strong proficiency in Go as a primary backend language; experience with gRPC and RESTful APIs is highly valued. • Solid understanding of distributed systems, multi-tenant architectures, and microservices. • Experience with blockchain integrations, crypto custody, or payment rails is a strong advantage. • Comfortable working in cloud-native environments. • Deep commitment to software reliability, observability, and security best practices. • Excellent communication skills and a collaborative mindset.
🏖️ Benefits
• Health insurance • 401(k) matching • Flexible work hours • Paid time off • Remote work options
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