Block Labs

Technology

SeniorBackendEngineer(Go)

€55–80k ~AI est. Portugal FULL TIME Remote Friendly
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Senior candidates.

The Brief

“Senior Backend Engineer (Go) at Block Labs. Skills: Backend development, Distributed systems, Go. Design distributed backend services. Build distributed backend services”

Industry & Context.

Technology

What They're Looking For.

Must Have

6+ years backend development, Proficiency in Go, Experience with gRPC, Experience with RESTful APIs, Solid understanding of distributed systems, Solid understanding of multi-tenant architectures, Solid understanding of microservices, Comfortable working in cloud-native environments, Deep commitment to software reliability, Deep commitment to observability, Deep commitment to security best practices

Nice to Have

Experience building consumer-facing services, Experience building platform services, Experience with rules engines, Experience with real-time scoring, Experience with decisioning systems, Background in fintech, Background in real-time gaming, Background in entertainment platforms, Background in high-traffic consumer products, Familiarity with event-driven systems, Familiarity with Kafka, Familiarity with message queues, Prior experience designing APIs for multi-tenant products, Prior experience designing APIs for white-label products

What You'll Do.

Design distributed backend services

Build distributed backend services

Develop core platform features

Develop core platform services

Consume player activity streams

Process player activity streams

Integrate with internal platforms

Integrate with third-party tools

Collaborate with product teams

Collaborate with frontend teams

Collaborate with data teams

Collaborate with infrastructure teams

Deliver end-to-end systems

Contribute to architectural design

Drive technical decisions

Ensure fault-tolerance

Ensure data integrity

Maintain clean Go code

Maintain testable Go code

Maintain well-documented Go code

How You'll Work.

Team & Collaboration

Cross-functional teams

Full Job Description

ABOUT BLOCK LABS Block Labs is a premier technology studio operating at the bleeding edge of Web3, Artificial Intelligence, and iGaming. We don't just ship features; we engineer high-scale, production-grade platforms that power the next generation of digital products. We are a collective of senior engineers, product strategists, and builders who refuse to compromise on architecture. Whether we are designing autonomous multi-agent AI systems, building decentralized financial infrastructure, or architecting high-frequency iGaming platforms, our standard is excellence. We move fast, but we build for the long term. If you are looking to work alongside a team that values deep technical expertise, thoughtful system design, and product ownership, Block Labs is where you belong. ABOUT THE ROLE We are building the backend that powers how players experience our platform: a set of multi-tenant services that turn high-volume player activity into engaging, personalised, and trustworthy experiences. It is a broad and evolving remit, with real room to shape new products and capabilities as the platform grows. You’ll be joining a senior, highly technical team building greenfield backend services that react to player activity in real time and at scale. We value autonomy, craftsmanship, and long-term thinking, and we’re building event-driven systems designed for resilience, low latency, and trust. KEY RESPONSIBILITIES: - Design and build distributed backend services that power player engagement across a multi-tenant platform. - Develop core platform features and services across a broad and evolving set of player-facing domains, from engagement and personalisation to platform integrity. - Consume and process high-volume player activity streams, integrating with internal platforms (payments, game providers, player data) and relevant third-party tools. - Collaborate with product, frontend, data, and infrastructure teams to deliver reliable, end-to-end systems. - Contribute to architectu

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