Steven.com
Founding Product Engineer
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Founding Product Engineer
FOUNDING PRODUCT ENGINEER
COMPANY: CultureTest / Steven.com ROLE: Founding Product Engineer REPORTING TO: CTO, CultureTest LOCATION: London
About CultureTest
This role sits within CultureTest, a venture within the Steven.com ecosystem—a company scaling the infrastructure behind high-performing teams. Most hiring decisions rely on CVs, interviews, and gut instincts—all weak predictors of on-the-job behaviour. As companies grow, critical hiring choices are often made with less structure. CultureTest introduces company-specific, scenario-based behavioural screening early in the hiring process. Instead of generic personality tests, we help teams assess how candidates would fit into the company before interviews influence perception.
We are early-stage, customer-facing, shipping quickly, and iterating based on real usage.
Role Mission
Own the frontend experience end-to-end, designing and shipping the UI that hiring teams and candidates interact with daily. Help define CultureTest’s product approach as the platform scales.
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As the first dedicated frontend engineer, you’ll:
- Take ownership of the existing frontend, building in Next.js (App Router) and TypeScript
- Contribute across the full stack over time
- Work closely with the CTO to shape frontend architecture, product decisions, and engineering standards, with high autonomy and influence on both product and engineering culture
Key Outcomes
- Take full ownership of the existing frontend and ship core product features in Next.js (App Router) and TypeScript
- Define and own the frontend architecture across the expanding SaaS platform
- Translate product ideas into fast, polished, and highly usable experiences
- Shape how behavioural data is presented so hiring teams can interpret and act on it efficiently
- Collaborate on API contracts and system design with the CTO
- Help establish early engineering practices and standards as the team scales
Core Competencies
- Deep expertise in React, Next.js (App Router), and TypeScript
- Strong product instincts with an eye for high-UX quality
- Systems thinking—designs aligned with long-term architecture, not just individual components
- Comfort with ambiguity, defining solutions without excessive process constraints
- Clear collaboration on API design and full-stack considerations
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Why You’ll Thrive Here
You:
- Have shipped real SaaS products and seek foundation-level ownership
- Prefer high autonomy, minimal process, and influencing both product and engineering culture
- Are curious about the broader system (Go, PostgreSQL, AWS), even with a frontend focus
- Enjoy direct customer collaboration and quick iteration based on real-world use
- Hold a high bar for UX and care about product feel—right as much as escape velocity
Ideal Background
- A strong frontend or product engineer with production SaaS shipping experience
- Deep, hands-on expertise in React, Next.js, and TypeScript
- Ability to think in systems and willingness for broader system ownership over time
- A track record of startup or early-stage experience is a strong plus
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