Software Engineer Product

Excelity; Greater London; On-site; GBP 80,000 - GBP 100,000; Full time

Job summary

A leading biotech company in the United Kingdom is seeking a Software Engineer to build user-facing systems for Boltz Lab, aiding scientists in drug discovery. This role involves designing and implementing features that make advanced AI capabilities usable. Candidates should have experience with user-facing product development, strong software engineering fundamentals, and effective communication skills. Join a talent-dense team and impact thousands of scientists daily while enjoying competitive compensation and equity ownership.

Benefits

Opportunity for significant impact

Work with a talented team

Ownership of projects

Highly competitive salary

Substantial equity ownership

Qualifications

• Strong experience building and shipping user-facing products in production environments.
• Solid software engineering fundamentals, with an emphasis on clean abstractions, maintainability, and testing.
• Ability to collaborate closely with designers and product partners to turn user needs into thoughtful technical solutions.
• Experience owning features end-to-end, from initial design through implementation, iteration, and maintenance.
• Strong communication skills and comfort working across engineering, product, and research teams.

Responsibilities

• Build user-facing systems that make Boltz Lab intuitive and powerful.
• Design and ship product features translating advanced machine-learning and molecular modeling capabilities.
• Collaborate with product designers, ML researchers, and domain scientists.

Job description

Boltz is a public benefit company building the next generation of AI-powered molecular modeling tools to make biology programmable and accelerate drug discovery, while keeping frontier capabilities broadly accessible.

Boltz-1, Boltz-2, and BoltzGen are open models trusted by 100,000+ scientists across biotech and academia, and used in programs at every Top 20 pharma as well as leading agrichemical and industrial research organizations.

We deliver these capabilities through Boltz Lab, our platform for running our latest models and design agents as reliable, production-grade tools. Boltz Lab is designed around real chemistry and biology workflows, so teams can start from a target and a hypothesis and quickly generate, evaluate, and rank candidate molecules. We provide the compute, the scalable infrastructure, and the collaboration layer, so scientists can iterate faster and stay focused.

You can read more about our mission, research and product vision on our manifesto.

About the role

As a Software Engineer in Product, you will build the user-facing systems that make Boltz Lab intuitive, powerful, and indispensable for scientists designing new medicines. Your primary responsibility will be to design and ship product features that translate advanced machine-learning and molecular modeling capabilities-Za into clear, usable workflows.

You will work closely with product designers, ML researchers, and domain scientists to shape the end-to-end experience, from interactive interfaces and APIs to the underlying application logic that supports exploration, iteration, and decision-making. This role sits at the intersection of engineering, product, and science, with direct impact on how researchers interact with and trust our models.

This role is ideal for someone who cares deeply about usability and clarity, enjoys turning complex technical systems intopụ elegant products, assusth and is motivated by building tools that scientists rely on daily in real drug-discovery workflows.

About you

• Strong experience building and shipping user-facing products in production environments.
• Solid software engineering fundamentals, with an emphasis on clean abstractions, maintainability, and testing.
• Ability to collaborate closely with designers and product partners to turn user needs into thoughtful technical solutions.
• Experience owning features end-to-end, from initial design through implementation, iteration, and maintenance.
• Strong communication skills and comfort working across engineering, product, and research teams.

Nice to have:

• Experience building tools for technical or scientific users (e.g. developer platforms, data tools, or research software).
• Familiarity with ML-powered products or systems that expose model outputs to users.
• Exposure to computational biology, chemistry, or other scientific domains.
• Experience designing interactive workflows for complex data or model-driven systems.
• Prior experience in an early-stage startup or fast-moving product team.

What we offer

• Opportunity to drive outsized real-world impact by building tools that empower thousands of scientists across the industry.
• Work alongside one of the most talent-dense teams in the field.
• Significant ownership and independence, with responsibility for driving projects from concept to deployment.
• Highly competitive salary with substantial equity ownership.