Senior / Staff Computational Scientist

Sr. / Staff Computational Scientist

USA – South San Francisco, CA (Hybrid, 3 days onsite)

Job Description

Twist is seeking a Sr./Staff Computational Scientist to join our Scientific Computing team and help scale Twist Solutions. You will build computational systems and analysis workflows that sit directly on the critical path of antibody programs

This is a builder role for someone who enjoys owning ambiguous problems end to end and delivering durable solutions used by scientists and operations teams every day. You will collaborate closely with wet-lab scientists, assay development, QC, software engineers, and ML partners. Some overlap with applied AI/ML is expected and beneficial, especially where models can improve triage, quality, consistency, and scale.

Job title and compensation will be determined based on several factors, including but not limited to the candidate's years of experience, individual skills, knowledge, and abilities.

What you’ll be doing

• Build and own antibody sequence intake and screening workflows that evaluate sequence integrity, format expectations, and manufacturability risks, producing clear, explainable outputs with traceable evidence.

• Develop antibody-aware annotation and feature extraction that supports common antibody modalities and engineered formats, including multi-chain constructs.

• Create configurable validation and reporting logic that balances scientific rigor with customer flexibility.

• Build robust pipelines that convert raw experimental exports and metadata into structured, versioned, analysis-ready datasets.

• Implement quantitative analysis and analysis logic for high-throughput characterization data.

• Partner with assay scientists and QC stakeholders to define controls, acceptance criteria, and failure modes, then translate them into automated checks and consistent reporting.

• Experience developing and applying AI/ML models for antibody/protein sequences and experimental assay data (for example developability prediction, QC triage, or sequence-to-property modeling) is a strong plus.

• Collaborate with Data Science/ML teammates on dataset creation, feature engineering, baselines, benchmarking, and model integration.

• Apply statistical learning or lightweight ML methods where they provide clear value (for example anomaly detection, drift detection, QC triage, prioritization, risk scoring), emphasizing reliability, interpretability, and measurable impact.

• Build maintainable scientific software in Python and contribute to good engineering hygiene (version control, testing, documentation, reproducibility, and robust error handling).

What you’ll bring to the team

• MS with 8–12 years of industry experience, or PhD with 4–8+ years of industry experience (or equivalent) in Computational Biology, Bioinformatics, Biophysics, Immunology, Protein Engineering, Machine Learning, Computer Science, or a related field.

• Strong grounding in antibody science and engineering concepts, with the ability to reason about antibody sequence, format constraints, and developability considerations.

• Strong Python programming skills (pandas, numpy, scipy) and a track record of shipping tools that automate scientific workflows.

• Experience working with experimental datasets, applying quantitative methods, and building QC frameworks that produce reliable, consistent outputs.

• Comfort collaborating cross-functionally with wet-lab and engineering teams, and ability to translate scientific intent into pragmatic, usable software.

Nice to have

• Experience with engineered antibody formats (for example bispecific or multi-specific constructs) and challenges around representation, pairing, and assessment.

• Applied ML experience, such as feature engineering, evaluation, baselines, model development, or integrating models into production workflows using scikit-learn and/or PyTorch/TensorFlow.

• Experience interfacing with lab systems and data sources (for example LIMS, lab automation, instrument data exports).

• Familiarity with containers and cloud tooling (for example Docker and AWS/GCP).

About Twist Bioscience

Twist Bioscience synthesizes genes from scratch, known as “writing” DNA. Just as children learn to both read and write, the next phase of development for the genomics revolution is the ability to write DNA.

At Twist Bioscience, we work in service of people who are changing the world for the better. In fields such as health care, agriculture, industrial chemicals and data storage, our unique silicon-based DNA Synthesis Platform provides precision at a scale that is otherwise unavailable to our customers.

Twist Bioscience Corporation is an Equal Opportunity Employer. Twist Bioscience Corporation provides equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, genetic characteristics, or any other category protected by law.

The base cash compensation for this California-based role is below. In addition to base salary, this role is eligible for bonus, equity, and a generous benefits package. Final compensation amounts are determined by multiple factors, including candidate skill, experience, expertise, and location and may vary from the amount listed above. Compensation may be different in other locations.
San Francisco Bay Area Pay Range
$173,000—$200,000 USD