Software Engineer

Company Description

Mitra Bio is building the future of skincare through epigenetics, longevity science, and data. Backed by Khosla Ventures, Illumina, and Innovate UK, we help people better understand their skin over time using simple, non-invasive skin sampling and advanced data analysis. Our goal is to make highly personalised skincare more effective, accessible, and science-driven.

Role Description

We are looking for a skilled software engineer to help the Engineering Team refactor the ‘research-level’ code into production-ready code.

What You'll Own:

• Expanding and optimising our cloud & AI infrastructure and data pipeline architecture
• Optimising data flow and collection throughout our custom-built Clinical Management Interface (CMI)
• Partnering closely with the Data Science Team to support seamless integration with their pipelines

What We're Looking For:

• Minimum 5 years professional software development experience
• Expert proficiency in Python in software development and data science/processing
• Proven experience in refactoring "research-level" code into production-ready software
• Proven experience working with large data, data models, deploying and using AI models
• Proven experience of collaborating effectively in cross-functional team environment
• Software skills including: OOP, test-driven development, unit testing (pytest), Git, CI/CD
• Clear technical writing/documenting
• Working knowledge of R
• Familiarity with cloud environments (ideally AWS)
• Familiarity with containerisation
• Familiarity of workflow management systems (e.g. Snakemake, Nextflow, Airflow, Dagster)
• Familiarity with MLOps

Why Join Us:

• 25 days of annual leave, plus public holidays in England and Wales
• A fast-growing, mission-driven startup at an early stage and a product that directly impacts consumers in a meaningful way
• High ownership, autonomy, and direct impact
• A collaborative, ambitious team of scientists, engineers, and operators building something genuinely new
• Strong in-person/hybrid culture, fast feedback loops, and zero bureaucracy
• Backing from world-class investors
• A fast-moving environment where great ideas can quickly become reality

Interview Process

• 30 minute screen with Talent Acquisition
• 1 hour meeting with the Engineering Team
• 45 minute meeting with the Data Science Team

How to Apply

Please submit:

• Your CV
• A short cover letter explaining why you’re interested in Mitra Bio and what excites you about this role

Diversity, Equity, and Inclusion

At Mitra Bio, we believe the best ideas, products, and breakthroughs come from diverse perspectives and lived experiences. We are committed to building an inclusive environment where people feel respected, supported, and empowered to do their best work. We welcome applicants of all backgrounds, identities, experiences, and ways of thinking — including those who may not meet every qualification listed in the job description. If you’re excited about the role, have the expertise to be successful and believe you could make an impact, we’d love to hear from you. We are committed to creating a fair and accessible hiring process and building a team that reflects the diverse communities we serve.