Senior Backend Developer

Galaxy

Senior Backend Developer designing and building backend systems for blockchain infrastructure at Galaxy. Contributing to cutting-edge projects in the realm of finance and artificial intelligence.

Posted 6/24/2026full-timeRemote • 🇺🇸 United StatesSeniorWebsite

Tech Stack

Tools & technologies

AWSCloudDistributed SystemsFluxGoKubernetesNode.js

About the role

Key responsibilities & impact

Build and own backend systems
Design and build APIs, services, Ethereum data pipelines and indexers, staking and validator infrastructure integrations, and monitoring and operational tooling.
Own system design end-to-end: architecture, implementation, testing, deployment, and observability.
Work across the Ethereum stack, integrating with both execution layer and consensus layer clients.
Contribute to Liquid Collective alongside other staking and blockchain infrastructure projects across Galaxy.
Set and maintain the bar on API design, testing strategies for distributed systems, reliability and fault tolerance, and security and key management practices.
Operate in a spec-first development environment — translate product and protocol requirements into clear technical specs before building.
Leverage AI-assisted development workflows (e.g. Claude Code) and work with emerging paradigms like MCP (Model Context Protocol) and agent-based tooling.
Work cross-functionally with protocol, product, and infrastructure teams.
Mentor engineers through code review, design feedback, and raising the overall quality of what the team ships.
Contribute to how the team evolves its practices — not just executing within the current system, but improving it.
Embrace and champion the thoughtful adoption of AI to improve team performance and business outcomes.
Leverage AI tools (e.g., generative AI, automation platforms, data copilots) to improve productivity, decision-making, and output quality in your day-to-day work.

Requirements

What you’ll need

7+ years of professional software engineering experience.
Strong experience building backend systems in Golang.
Deep understanding of distributed systems.
Experience working with blockchain systems, preferably Ethereum — including familiarity with execution vs consensus layers, node operation, and data flow.
Experience with cloud-native infrastructure: AWS, Kubernetes, Helm, GitOps (e.g. Flux).
Strong testing practices for complex and stateful systems.
Experience working in remote, asynchronous teams.
High agency, low ego — you own your work end-to-end and hold yourself accountable for quality.

Benefits

Comp & perks

Competitive base salary and discretionary bonus
Hybrid/Flexible Working Arrangements
Flexible Time Off (paid)
3% 401(k) company contribution
Company-paid health and protective benefits for employees, partners, and other dependents
Generous paid Parental Leave
Competitive family planning benefits for US employees
Opportunities to learn about the Crypto industry
Smart, entrepreneurial, and fun colleagues
Free daily snacks and weekly breakfasts/lunches
Employee Resource Groups
Free coaching and counseling sessions through Headspace

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

backend systemsAPIsEthereumGolangdistributed systemscloud-native infrastructuretesting practicesmonitoringobservabilitydata pipelines

Soft Skills

mentoringcross-functional collaborationhigh agencyaccountabilityimprovement mindsetcommunicationdesign feedbackcode reviewteam performancethought leadership