About the role
The internal tools team builds the software the rest of the company uses to do its work: expense and procurement flows, access requests, hiring pipelines, deployment dashboards and the admin consoles the ventures run on. We treat staff as customers, and we measure success by how little time a task takes once it is automated.
A small company is only as fast as its internal systems. Good tooling lets Frontier AI ship a model evaluation without a ticket, and lets the on-call engineer on Calkulate see a live dashboard without waiting. The tools also reflect the question behind Clexerl Go: what is the least a person should have to do here? We apply that question to ourselves first.
The team is small and works across the whole company. We ship weekly, keep a public roadmap, and retire tools we no longer need.
What you’ll do
- Build internal web applications and workflows that replace spreadsheets, email approvals and manual data entry.
- Design APIs and data models that connect HR, finance and engineering systems without copying sensitive data between them.
- Work with teams across the company to map a process, agree what to automate, and measure the time it saves.
- Maintain authentication and role-based access control for internal tools, integrated with the company identity provider.
- Write tests and clear documentation so that tools keep working when the person who built them moves on.
- Operate the tools you build, including monitoring, on-call response for critical workflows and quarterly reviews.
- Retire tools that are no longer used, and move their users across with a clear notice and a tested fallback.
What you’ll bring
- Experience building production web applications, with ownership of both backend services and the front-end code that uses them.
- Proficiency in TypeScript and Python or Go, with working knowledge of SQL and relational schema design.
- Familiarity with OAuth and single sign-on, and with the practical details of role-based access control.
- Good product sense for internal users, and the patience to watch someone do a task before automating it.
- Clear written communication, with documentation that a new colleague can follow without asking you questions.
- Fluent British English and a clean, economical writing style, with no padding and no unexplained jargon.
Nice to have
- Experience integrating with SaaS APIs, including webhooks, rate limits and pagination at scale.
- Background in audit logging and compliance controls for systems that handle financial or personnel data.
- Experience building small tools with an LLM in the loop, such as summarising requests or routing approvals with human review.
- Experience with infrastructure-as-code for internal services, such as Terraform or Pulumi.
Work you might take on
- 01
Replace the paper-based access request process with a self-service tool that routes approvals and records each grant automatically.
- 02
Build a deployment dashboard that shows what is running in each venture, with owners and last-changed times.
- 03
Create an onboarding checklist app that provisions accounts, equipment and access from one form, with an audit trail.
- 04
Consolidate three expense reporting tools into one, migrating historical records and retiring the old systems safely.
Compensation
$180K – $280K
The US base salary range for this role. Every offer also includes equity in Clexerl and, when it spins out, in the venture you help build. We tell you the reasoning behind your number.
Benefits
Health, fully covered
Medical, dental and vision for you and your dependants, premiums paid in full.
Two kinds of equity
Equity in Clexerl, plus a stake in the venture you help build when it spins out.
22 weeks parental leave
Fully paid, for every parent, however your family arrives.
Rest that sticks
Flexible time off with a four-week minimum we actually check on, plus a company-wide week in December.
Learning and compute
A yearly budget for courses, conferences and books, and compute credits for side projects.
401(k) with a 4% match
Matched from your first paycheque and vested immediately.
How we hire
Apply 5 minutes
Send links to what you have built and a few lines on why this role. No cover letter needed.
Intro call 30 minutes
A conversation with the hiring manager about the work, the team and what you want next.
Work sample 2–4 hours
A paid take-home or a pairing session on a real-shaped problem. You pick the format.
Studio day One day
Meet the team, go deep on your work and ours. Remote or in person.
Offer Within 5 days
A written offer with the full range, the equity and the reasoning behind both.
Opens an email with a short template. Links beat résumés.