Senior Machine Learning Engineer, NLP

BenchSci

BenchSci

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Software Engineering

London, UK

GBP 80k-130k / year + Equity

Posted on Oct 29, 2025
We are looking for a Senior Machine Learning Engineer to join our growing engineering team. You’re the perfect fit for this role if you are passionate about solving problems in NLP, have a great appreciation for science and want to transform how it is done.

You Will:

  • Continuously improve the performance and scalability of ML models that are at the core of BenchSci’s products
  • Build and deploy models from inception to live in production pipelines
  • Work with BenchSci's Product Managers and Scientists to correctly capture the nuances of biology
  • Lead or consult the authoring of engineering design proposals following the unified Platform Stream roadmap at BenchSci
  • Leverage a deep understanding of the business context and the team’s goals to unlock independent technical decisions in the face of open-ended requirements
  • Proactively identify new opportunities (from both internal and external sources) and advocate for and implement improvements to the current state of projects
  • Respond with urgency and drive urgency in own team to operational issues, owning resolution within one's sphere of responsibility
  • Advocate for code and process improvements across your team, and help to define best practices based on personal industry experience and research
  • Participate in sprint planning, estimation and reviews. Take ownership of deliverables, and work with teammates to ensure high-quality deliverables

You Have:

  • 5+ years of software development experience
  • Bachelor’s degree in Computer Science or Mathematics
  • Strong experience with NLP
  • A degree in computer science with a focus in machine learning and at least three years of experience in the industry
  • Strong experience with TensorFlow, PyTorch, and image processing libraries such as OpenCV and scikit-image
  • Experience with data processing frameworks and Cloud ML Tooling
  • You have a constant desire to grow and develop
  • You have strong cross-team communication and collaboration skills
  • A team player who strives to see teammates succeed together

Compensation:

    £80,000 - £130,000 GBP • includes equity options

    We know compensation is an important part of choosing your next role. The range shown reflects our target hiring range, informed by market data, internal equity, and the role's current scope. Often the mid-range is where we tend to fall, but individual offers may vary based on experience, skills, and the role scope.

Benefits and Perks:
* A great compensation package that includes BenchSci equity options
* A robust vacation policy plus an additional vacation day every year
* Company closures for 14 more days throughout the year
* Flex time for sick days, personal days, and religious holidays
* Comprehensive health and dental benefits
* Annual learning & development budget
* A one-time home office set-up budget to use upon joining BenchSci
* An annual lifestyle spending account allowance
* Generous parental leave benefits with a top-up plan or paid time off options
* The ability to save for your retirement coupled with a company match!
About BenchSci:

BenchSci's mission is to unravel the complexity of disease biology for the betterment of patients. We do this by applying neuro-symbolic AI to unravel the black box of disease biology — the number one reason drug discovery projects fail.

Despite significant advancements, drug discovery still takes over a decade and billions of dollars — and 90% of clinical trials still fail. The core problem is getting the biology wrong before programs go to scale. BenchSci exists to fix that.

Our platform, ASCEND, is the world's first neuro-symbolic AI built for biopharma disease biology. It gives scientists clarity in hours or weeks that previously took months. Our platform is used by 9 of the top 10 pharmaceutical companies across 4,500+ research centers, and grew 247% over three years (Deloitte Fast 500, 2025). We've raised $200M+ from Generation Investment Management, Google's Gradient Ventures, TCV, and F-Prime.

Our Culture:
Our culture fosters transparency, collaboration, and continuous learning.
We value each other's differences and always look for opportunities to embed equity into the fabric of our work. We foster diversity, autonomy, and personal growth, and provide resources to support motivated self-leaders in continuous improvement.
You will work with high-impact, highly skilled, and intelligent experts motivated to drive impact and fulfill a meaningful mission. We empower you to unleash your full potential, do your best work, and thrive. Here you will be challenged to stretch yourself to achieve the seemingly impossible.
Diversity, Equity and Inclusion: We're committed to creating an inclusive environment where people from all backgrounds can thrive. We believe that improving diversity, equity and inclusion is our collective responsibility, and this belief guides our DEI journey. Learn more about our DEI initiatives.
Accessibility Accommodations: Should you require any accommodation, we will work with you to meet your needs. Please reach out to talent@benchsci.com.

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