Frontend Engineer
HASHLondon, England, United Kingdom
Posted January 28, 2026
Full Time
About the Company
HASH's open-source platform helps firms integrate both structured and unstructured information into knowledge graphs that support simulating, optimizing and automating processes.
Job Description
We're a fast-growing deep-tech company crafting web-based tools that help people model, understand, and optimize real-world systems and processes using AI. We're hiring a senior Frontend Engineer to join our team in London or Berlin.
Requirements
- Expertise with React, TypeScript, modern HTML & CSS
- Proven track record architecting and delivering rich web apps that involve complex user interactions
- Rigorous approach to documenting and versioning components for external audiences
- Experience profiling and debugging performance in devtools
- Comfortable taking a visible technical leadership role
- Excellent written & verbal communication in English
Benefits
- Leading equity-weighted total compensation
- Employer pension contributions
- At least 30 days holiday annually
- Twice-yearly in-person team retreats around the world
