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Backend Engineer - Go

Blockbyblock Technologies — Greece · Posted ~2 hours ago

Mid Full-time Hybrid

Skills

Go backend development low-latency systems blockchain nodes decentralized exchanges DeFi protocols performance optimization production reliability Ethereum Solana blockchain DeFi

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Summary ✨ AI‑Generated

A backend engineering opportunity for a Go developer interested in low-latency systems and on-chain trading infrastructure. You’ll build reliable production services, integrate with blockchain nodes and decentralized financial protocols, investigate performance bottlenecks, and own features from design through deployment. A Computer Science degree or equivalent experience and at least 2 years of experience are required. Candidates must currently be based in Greece.

Highlights

Work on high-performance financial infrastructure, solve deep technical and reliability challenges, own features end to end, and collaborate on sophisticated blockchain and trading systems with remote or hybrid flexibility.

Description

About the job At BlockByBlock Technologies, we’re building MEV-aware execution systems and high-performance on-chain trading engines across Ethereum and Solana. We’re looking for a Go backend engineer who enjoys understanding systems deeply, solving technical problems, and building reliable production software. Candidates must currently be based in Greece. Remote or hybrid working and attendance at our Athens office can be agreed with the successful candidate. What You’ll Do Build and optimize reliable, low-latency backend systems in Go for on-chain trading.Integrate with blockchain nodes, decentralized exchanges, and DeFi protocols.Investigate performance bottlenecks and production reliability issues.Collaborate with the team to improve trading execution and system performance.Contribute to design decisions and take ownership of features through implementation, testing, and deployment. What We’re Looking For Bachelor’s in Computer Science (or equivalent experience).2+ years of backend development, with hands-on experience building production systems in Go (Golang).Strong understanding of data structures and design patterns.Hacker mindset: curious, resourceful, and pragmatic—reads source, instruments systems, and finds root causes quickly.Easy-going and collaborative—we value clear communication and a low-ego approach.Comfortable working in a fast-paced environment where priorities can shift.Fluent with Claude Code (or equivalent AI coding workflows)—we expect you to multiply your output with it.Fluent in Greek and English. Bonus Points Experience with low-latency trading, exchange, or market-data systems.Hands-on performance profiling and optimization experience.Linux power-user skills.Blockchain node or client development, particularly Ethereum.Ethereum or Solana infrastructure, DEX integrations, or MEV experience.Solidity and familiarity with DeFi protocols. Why Join Us Competitive salary.Flexible working arrangements within Greece and an async-friendly culture.Ownership of meaningful features and services, from implementation to production.Hands-on work on trading execution, blockchain infrastructure, and DeFi.