Tessl
AI devtools, London
AI-native software development platform where specs, not code, drive software. It raised $100m in its Series A in November 2024. It has 7 roles open, 4 of them in the UK.
Backed by Accel, boldstart ventures, GV and Index Ventures. Total raised ~$125m.
On the Home Office register of licensed visa sponsors.
- 56 daystypical age of an open role
- 1roles open for more than 60 days
- 4roles taken down since we started tracking
- 0%of roles list a salary
Open roles
7 live today- Salary not listed22 Sept 2026Apply
- Member of Marketing Staff - Marketing Manager (Demand Generation)
London Office (hybrid)
Licensed to sponsor visas
Salary not listed21 Sept 2026Apply - Salary not listed21 Sept 2026Apply
- Salary not listed7 Sept 2026Apply
- Salary not listed7 Sept 2026Apply
- Salary not listed7 Sept 2026Apply
- Member of Technical Staff- Research Engineer (Harness Engineering and Agentic Orchestration)
London Office (hybrid)
Licensed to sponsor visas
Salary not listed28 May 2026Apply
Open roles over time
Hiring momentum
Roles per weekAdded (by posting date)Closed (removed from the board)
Open roles by function
Open roles by team
As the company labels themIn the news
All 7 stories- Otherremio, 21 days agoTessl Coding Agent Guardrails Turn Repository Files Into a Control Layer
- Otherfinance.biggo.com, 27 days agoHarness Engineering: How to Build a Software Factory — Dru Knox, Tessl｜AI Engineer
- OtherDevOps.com, 20 Aug 2026AI Agents Are Writing Code Faster Than Anyone Can Review It. Tessl Is Betting On Standards To Close That Gap
- OtherSnyk, 17 Mar 2026Securing the Agent Skills Registry: How Snyk and Tessl Are Setting the Standard
- OtherDevOps.com, 19 Nov 2025Tessl Details Plan to Build Platform for Managing AI Agents Embedded in DevOps Workflows
- Productcalcalistech.com, 18 Sept 2025Guy Podjarny unveils Tessl’s vision for AI-driven software