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Lead Engineer

Role overview

Qualifications

  • 5+ years of experience building production backend or server-side systems
  • Strong hands-on proficiency with TypeScript and Node.js
  • Working proficiency in at least one of Python, Go, Rust, or Java
  • Advanced SQL skills and strong relational data modeling experience, ideally with PostgreSQL

Responsibilities

  • Build and own production-grade backend systems using TypeScript, Node.js, and supporting languages such as Python, Go, Rust, or Java.
  • Design automation workflows that connect structured documents, databases, third-party systems, and governance processes.
  • Develop data pipelines that ingest blockchain, market, protocol, pricing, and third-party API data.
  • Create data infrastructure that can be queried by AI agents for risk analysis and business intelligence.

About the company

W3 Sourcing logo

W3 Sourcing

Human Resources, Staffing & Recruiting

W3 Sourcing is the Recruitment and Human Capital acquisition arm of First Global Direct.​With its core leadership team coming from the Banking and Finance, HR & Sales, and Marketing spaces for over 2 decades and the AI, Digital Asset, and Web 3 development space since 2017 we are experts at sourcing the right Talent in these verticals. W3 is a specialized agency that focuses on recruiting top-tier talent for businesses operating in the fields of artificial intelligence (AI), Web3, Blockchain and associated ecosystems. Our team consists of experienced recruitment professionals with deep industry knowledge, and we have a robust network of qualified candidates and clients. We aim to provide the best recruitment solutions to our clients by matching them with the right talent, helping them to build strong teams and achieve their business objectives.​​The market for AI and Web3 talent is rapidly growing, with demand outpacing supply in many cases. Companies are looking to build and expand their teams with top-tier talent that can help them stay ahead of the competition. Our agency aims to fill this gap by providing our clients with a pipeline of highly qualified candidates and industry experts.

Company details

Company typeStartup
IndustryHuman Resources, Staffing & Recruiting
Company size2 - 10

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Job description

Lead Engineer

AI Infrastructure / Backend Engineering | USA Remote

US-based candidates only|Visa sponsorship is not available.


We are representing an early-stage technology venture building AI-powered workflow, governance, and data infrastructure for a large-scale decentralized finance ecosystem. The company is creating advanced tools that help technical and operational teams manage complex knowledge systems, automate governance workflows, and support risk analysis through reliable data infrastructure.

This is a confidential search for a senior, hands-on engineer who can operate across backend systems, data pipelines, AI agent infrastructure, and product foundations.

The Role

This is an opportunity to join a high-impact technical team as a Lead Engineer, owning the architecture and delivery of core automation systems, data infrastructure, and AI-augmented tools for complex decision-making workflows.

You will build backend services, integrations, data pipelines, and interfaces that help automate governance processes, improve traceability, and enable analysts and AI agents to work with structured, reliable information. The role is ideal for someone who enjoys 01 engineering, high-ambiguity environments, and end-to-end ownership.

What You'll Do

  • Build and own production-grade backend systems using TypeScript, Node.js, and supporting languages such as Python, Go, Rust, or Java.
  • Design automation workflows that connect structured documents, databases, third-party systems, and governance processes.
  • Build reliable importers, exporters, validation layers, change tracking, and hierarchical diffing systems.
  • Develop data pipelines that ingest blockchain, market, protocol, pricing, and third-party API data.
  • Design schemas for chain data, market data, and protocol state with strong data quality and historical accuracy.
  • Create data infrastructure that can be queried by AI agents for risk analysis and business intelligence.
  • Build monitoring, alerting, validation, observability, and rollback paths for production systems.
  • Develop foundations for advanced knowledge-work interfaces, including tree explorers, document review workflows, preview systems, and consistency checks.
  • Contribute to AI agent infrastructure, including tool definitions, execution environments, provenance tracking, and guardrails.
  • Help design systems for data integrity, provenance, permissions, and temporal querying.
  • Drive engineering milestones independently while communicating risks, tradeoffs, and progress clearly.

What We're Looking For

  • 5+ years of experience building production backend or server-side systems.
  • Strong hands-on proficiency with TypeScript and Node.js.
  • Working proficiency in at least one of Python, Go, Rust, or Java.
  • Advanced SQL skills and strong relational data modeling experience, ideally with PostgreSQL.
  • Experience building data pipelines that integrate with third-party APIs.
  • Strong systems thinking and comfort working across backend services, data infrastructure, and product-facing tooling.
  • Experience shipping iteratively with tests, observability, monitoring, and clear rollback strategies.
  • Ability to lead technical work in a high-ambiguity startup environment.
  • Comfort operating remotely in a distributed team.
  • Strong written communication and ability to coordinate across technical and non-technical stakeholders.

Nice to Have

  • Experience with Notion, Supabase, or similar workflow/database tools.
  • Experience building automation or data infrastructure for complex technical platforms.
  • Exposure to blockchain, DeFi, governance systems, risk analytics, or financial infrastructure.
  • Experience with AI agent infrastructure, tool-use systems, provenance tracking, or guardrails.
  • Experience with large-tree interfaces, document diffing, knowledge graphs, spatial canvases, or advanced knowledge-work tools.
  • Familiarity with cryptographic proof systems, Merkle trees, commitment schemes, event sourcing, or permission systems.
  • Open-source contributions in TypeScript, Node.js, Python, Go, or Rust.
  • Prior 0-1 startup engineering experience.

Why This Role Is Exciting

  • Own foundational systems for a technically ambitious AI and data infrastructure platform.
  • Work on hard engineering problems across automation, data quality, AI tooling, and governance workflows.
  • Build systems where correctness, traceability, provenance, and reliability genuinely matter.
  • Operate with significant autonomy in a senior, hands-on technical leadership role.
  • Join at an early stage with the opportunity to shape architecture, engineering practices, and product direction.
  • Work at the intersection of AI agents, decentralized finance, risk analytics, and advanced knowledge-work interfaces.
  • Build tools used for real-world decision-making in a complex, high-stakes technical environment.

Work Model

  • Full-time role.
  • USA remote.
  • US-based candidates only.
  • Visa sponsorship is not available.

Apply Now!

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MR

Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
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