Tech Lead - Distributed Systems & Frontend Architect

Worky; Greater London; On-site; GBP 120,000 - 175,000; Full time

Benefits offered by this job

Competitive salary

Equity participation

Job summary

HASH is seeking a Tech Lead to own the architecture of the frontend, integrations, and distributed workflow execution atop hgres. You will be a player‑coach, balancing hands‑on work with guiding architecture across a broad surface area and partnering with engineers for high‑impact outcomes.

You will define interfaces, drive RFCs and architectural decisions, and lead code reviews while shaping engineering standards.

Qualifications

• Advanced or expert proficiency in TypeScript and Rust.
• Knowledge of distributed systems including state, concurrency, messaging, retries, idempotency, observability.
• Track record owning architecture across a complex product or platform.
• Experience leading engineers with regular 1:1s and coaching.
• Excellent written technical communication including RFCs and architectural decisions.
• Strong judgment in design and pull‑request review.
• Experience with event‑driven or workflow systems and distributed coordination.
• Understanding of modern frontend architecture.
• Ability to turn product goals into tractable technical plans and expose risk early.
• High agency and responsibility across team and system boundaries.
• Willingness to work with us in person from our London office.
• Knowledge graphs, graph databases, connectors or synchronization platforms are useful but not required.

Responsibilities

• Own and evolve the technical architecture of HASH outside the hGraph core, including the frontend, application services, integrations infrastructure and Flows.
• Define clear interfaces between these systems and hGraph, working closely with hGraph's technical owners on cross‑cutting decisions.
• Design for correctness and resilience across distributed workflows, connector execution, long‑running operations, retries, failures and partial state.
• Write, maintain and drive alignment around technical specifications, RFCs, architectural decisions and implementation plans.
• Review designs and pull requests across TypeScript, Rust and frontend code, improving implementation quality and engineering judgment.
• Establish pragmatic engineering standards for testing, reliability, security, observability, operability and maintainability.
• Hold regular 1:1s with engineers, provide direct feedback and coaching, support career development and address performance issues early.
• Help engineers break ambiguous initiatives into milestones, owners, dependencies and risks, while preserving room for technical judgment.
• Remain close to the code: prototype critical paths, establish patterns, debug cross‑system failures and contribute directly when needed.
• Improve incident response and operational learning to prevent recurring issues.
• Partner with Product and Design to shape plans reflecting technical constraints and opportunities.
• Participate in hiring and help build a team with high standards and clear ownership.

Skills

TypeScript

Rust

Distributed systems

Architecture ownership

People leadership

RFCs & specs

Frontend architecture

1:1 coaching

Code review

London office

Job description

HASH is seeking a Tech Lead to own the architecture of the frontend, integrations, and distributed workflow execution atop hgres. You will be a player‑coach, balancing hands‑on work with guiding architecture across a broad surface area and partnering with engineers for high‑impact outcomes.

You will define interfaces, drive RFCs and architectural decisions, and lead code reviews while shaping engineering standards.