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Senior Backend Engineer (Golang, Distributed Systems)
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AI Summary
Build and maintain high-throughput TypeScript backend services for a real-time sports odds trading platform. Design Node.js services and REST/WebSocket APIs, ingest and serve live odds data, and improve performance, observability, and resilience. Requires 2+ years of backend experience, strong TypeScript/Node.js, REST/WebSocket API design, and PostgreSQL; Redis and ClickHouse are a plus.
Key Highlights
Real-time odds infrastructure for sports trading
High-throughput TypeScript/Node.js backend services
On-site role in Lisbon with relocation support
€70k to €80k base salary
Small profitable team of around 21 people
Key Responsibilities
Design, build and maintain scalable Node.js services and REST/WebSocket APIs
Build pipelines that ingest, process and serve odds data in real time
Improve performance, observability and resilience across the platform
Take part in architecture decisions and design reviews
Write clean code and review your teammates' code
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Technical Skills Required
Benefits & Perks
€70k to €80k base salary
Lisbon office, on site, with relocation support
Around 20% flat income tax for eligible newcomers to Portugal
Self-hosted infrastructure: real systems work, no cloud vendor in between
Squads of two that ship every week
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Nice to Have
Startup background, ideally in fintech, payments, crypto or trading
Experience with high-frequency pipelines, compression (zstd) or binary formats (MessagePack)
Honest, direct, no ego
You ship and never settle for good enough
An interest in sports, betting or markets (a plus, not a must)
Job Description
Job Title: Backend Engineer (TypeScript)
Industry: Sports Trading
Location: Lisbon (on-site)
Salary: €70k to €80k
Based in Lisbon, this is a rare chance to join a small, profitable team building real-time odds infrastructure used by the people who trade sport.
Their platform pulls live odds from more than 300 bookmakers and serves around 400 B2B clients, from prediction markets like Polymarket to hedge funds, market makers and major European bookmakers. Profitable, 21 people, mostly engineers, and growing every month.
They're looking for a TypeScript backend engineer to own high-throughput services on their trading and risk platform, where milliseconds matter because clients trade on the data.
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