Benchstack Ai

About the Company

Benchstack Ai is a boutique search partner helping AI and deep tech startups in the US and UK hire the people who actually build. From founding engineers to staff-level builders, we work with founders and venture-backed teams from Seed to Series C to scale fast, without compromising on culture or quality.

We specialise in:

Executive Search for technical and commercial leadership

Embedded & Fractional Talent support for high-growth teams

Targeted sourcing of engineers, data scientists, ML/AI specialists, and builders with true 0-to-1 experience

Our difference is simple:

Speed without shortcuts

Cultural fit alongside technical rigour

Founder-first empathy backed by years of in-house recruiting in fintech, SaaS, energy, and blockchain

Whether you’re hiring your first founding engineer, scaling your sales team, or planning workforce growth across a portfolio, Benchstack Ai gives you the edge in finding talent who will actually ship, scale, and stick.

Listed Jobs

Company Name

Benchstack Ai

Job Title

Senior Software Engineer | London | £75K-£110K + Equity

Job Description

**Job title:** Senior Software Engineer **Role Summary:** Lead end‑to‑end full‑stack development, own system design/implementation, and shape engineering practices for a rapidly growing SaaS platform. **Expectations:** Deliver high‑quality code, mentor peers, drive technical direction, and collaborate closely with product, design, and customer teams in a fast‑moving startup. **Key Responsibilities:** 1. Design, build, and deploy end‑to‑end features across frontend, backend, and infrastructure. 2. Develop robust data pipelines and integrations for financial and emissions analytics. 3. Own system lifecycle from architecture to production, making pragmatic technical decisions. 4. Define and enforce best practices to scale engineering culture. 5. Collaborate with product, design, and customer teams to solve real problems and influence product vision. **Required Skills:** - Full‑stack software engineering expertise. - Strong experience building B2B SaaS products. - Proficiency with React, TypeScript, Node.js, Postgres, Docker, AWS, and GitHub Actions. - Familiarity with infrastructure tooling (Terraform, DataDog). - Comfortable spanning frontend, backend, and infrastructure domains. - Ability to thrive in a high‑ownership, fast‑moving startup environment. **Bonus Skills:** - Experience with data pipelines (Dagster, dbt, or similar). - Background in fintech, travel tech, or data‑intensive platforms. - Early‑stage startup experience. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Engineering, or related technical field (or equivalent experience).

London, United kingdom

Hybrid

Senior

06-02-2026

Company Name

Benchstack Ai

Job Title

Full-Stack Engineer - Ai - London

Job Description

**Job Title:** Full‑Stack Engineer – AI **Role Summary:** A product‑focused full‑stack engineer will own feature development from customer discovery through production in a fast‑growing AI startup. Working in a small, autonomous team, the engineer delivers end‑to‑end solutions on 6‑week cycles, interacts directly with enterprise customers, and helps shape AI‑driven product paradigms. **Expactations:** - Demonstrate high agency and take ownership without waiting for direction. - Thrive in a high‑growth, early‑stage environment and adapt quickly to changing priorities. - Communicate effectively with customers and internal stakeholders. - Relocate to or be based in London (or work on‑site 5 days/week). **Key Responsibilities:** - Lead feature conception, design, implementation, and launch across the full stack. - Build scalable, secure web applications using Next.js, NestJS, and TypeScript. - Conduct technical trade‑off analysis to balance speed, impact, and quality. - Participate in on‑site customer visits to gather feedback and validate solutions. - Contribute to product strategy and AI‑driven innovation for target verticals. - Collaborate with product, design, and data science teams in 6‑week sprint cycles. **Required Skills:** - Proven experience shipping full‑stack features in production. - Strong proficiency with Next.js, NestJS, TypeScript, and related web technologies. - Solid understanding of both frontend (React/Next.js) and backend (Node.js/NestJS) architectures. - Experience in high‑growth or early‑stage startup environments; founding or 0‑to‑1 product experience is a plus. - Ability to make informed technical decisions quickly. - Excellent communication and customer‑engagement skills. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience). - No specific certifications required.

London, United kingdom

On site

23-02-2026