Staff Machine Learning Scientist
San Francisco / $200000 - $260000 annum
INFO
SALARY:
$200000 - $260000
LOCATION
San Francisco
Permanent
Staff Machine Learning Scientist
Location: SF Bay Area - Hybrid (3 days/week onsite)
Salary: $200-260k base + Equity
A leading commerce marketplace with 130M+ users and billions of daily events is hiring a Staff Machine Learning Scientist to drive innovation across personalization, feed ranking, computer vision, and GenAI. You'll work on high-impact ML solutions that directly shape user experience and business outcomes at massive scale.
What You'll Do
- Lead full-lifecycle ML projects from idea to production across core areas like personalization, trust & safety, marketing optimization, and user engagement.
- Own the ML development process-from data exploration and feature engineering to model training, deployment, and post-launch optimization.
- Collaborate cross-functionally with ML engineers, PMs, and business stakeholders to identify and prioritize high-leverage initiatives.
- Experiment with emerging AI techniques, including GenAI, computer vision, and LLMs, to push the boundaries of what's possible on the platform.
- Build scalable, production-ready ML systems that enhance key metrics like retention, engagement, and conversion.
What You Bring
- 7-10 years of experience building, deploying, and maintaining ML models at scale.
- Deep expertise in Python, SQL, Spark (PySpark or Scala) and frameworks like PyTorch or TensorFlow.
- Proven track record in consumer tech or large-scale marketplaces companies.
- Hands-on experience with CNNs, Transformers, Vision Transformers, and personalization algorithms.
- Background in user behavior modeling, search relevance, or real-time data systems.
- Strong foundation in experimentation (A/B testing), statistics, and applied ML.
- Exceptional communication skills and the ability to translate technical insights into business value.
- Experience with LLMs, RAG (Retrieval-Augmented Generation), or PEFT (Parameter-Efficient Fine-Tuning) techniques.
CONTACT
Joshua Poore
VP Recruiting – Data Science, ML & AI
SIMILAR
JOB RESULTS
Machine Learning Scientist
$219054.6 - $255563.7
+ Data Science & AI
PermanentUSA
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Machine Learning Scientist
USA (Remote)
$180,000 to $210,000 base + bonus + equity
This is an opportunity to join a high-impact Machine Learning team where experimentation, ownership, and real-world impact sit at the core of the role. You will work on systems that directly influence commercial outcomes at scale, with the autonomy to design, test, and deploy solutions that power critical decision-making.
The Company
This organisation operates at the intersection of data, commerce, and risk, building advanced machine learning systems to solve complex transactional challenges. Their platform processes high volumes of real-time decisions, using AI to optimise customer experiences while managing risk. Machine learning is central to their product and growth, not a supporting function, giving teams strong visibility across the business.
They foster a culture that values scientific thinking, creativity, and engineering rigour, with teams structured to own their services end to end.
The Role
You will contribute to the development of production-grade machine learning systems, working across the full lifecycle from experimentation through to deployment.
* Designing and implementing machine learning models that drive real-time decisioning
* Building and optimising scalable ML pipelines to enable rapid experimentation
* Exploring and integrating new ML techniques to improve model accuracy and scalability
* Collaborating closely with Product, Engineering, and Risk teams
* Owning projects end to end, with full accountability for outcomes in production
Your Skills and Experience
* Strong commercial experience building and deploying machine learning models from first principles
* Hands-on experience working in distributed computing environments such as Spark
* Proficiency in Python and SQL for data processing and model development
* Experience designing and running experiments rather than relying on pre-built models or APIs
* Ability to translate business problems into scalable machine learning solutions
What They Offer
* Competitive base salary up to $210,000 depending on experience
* Annual bonus / equity package
* Fully remote working within the USA
* Flexible working and unlimited paid time off
* Generous parental leave and learning and development support
* The opportunity to work on high-scale systems with meaningful business impact
How to Apply
If you are interested in applying your machine learning expertise to real-world challenges at scale, please submit your CV to learn more.

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Analytics Engineer
City of London
£70000 - £90000
+ Advanced Analytics & Marketing Insights
PermanentCity of London, London
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Analytics Engineer (12 Month FTC)
Fully remote/London
Up to £90,000
Overview
This is an opportunity to join a purpose driven organisation using data to improve access to high quality care. You will step into a key role within a growing data function, taking ownership of critical data pipelines and models while working with a modern cloud stack. The environment offers autonomy, meaningful impact, and the chance to shape how data is used across the business.
The Company
They are a fast growing digital health organisation focused on delivering accessible, high quality services at scale. Operating remotely, they bring together a collaborative team that values flexibility, inclusivity, and real world impact. Having recently matured from a start up into a more structured platform environment, they are investing heavily in their data capabilities. Their work sits within a highly regulated space, where strong governance and quality data processes are essential.
The Role
You will work closely with the Head of Data and data engineering colleagues to maintain and build out analytics models and pipelines.
- Own and maintain core data models built in dbt
- Ensure the smooth running of billing and automation pipelines
- Develop new data models to support evolving business needs
- Collaborate with data engineers and analysts to improve data quality and usability
- Review and optimise SQL and dbt code across the analytics layer
- Contribute to the ongoing evolution of a modern data platform using cloud technologies
- Operate effectively in a fast moving environment with changing priorities
Your Skills and Experience
- Strong commercial experience working with dbt in a production environment
- Advanced SQL skills and the ability to write efficient, scalable queries
- Experience using Python within data workflows
- Exposure to modern cloud data platforms or lakehouse environments
- Familiarity with Databricks is beneficial but not essential
- Comfortable working in evolving or less structured environments
- Able to work autonomously and take ownership within a small team
- Experience working with governed or regulated data environments is advantageous

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DevSecOps Manager
$200000 - $250000
+ Data Engineering
PermanentUSA
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DevSecOps Manager
Location: Remote (EST/CST)
Pay: $200k – $250k Base + Bonus & Equity
Overview:
A global, high-scale data and analytics platform is seeking a Senior Manager, DevSecOps to lead multiple teams focused on embedding security across modern engineering environments. This organisation operates at massive scale, processing billions of real-time events daily, and partners with leading global brands.
This role blends deep technical leadership with strategic oversight, driving secure DevOps, cloud-native security, and AI/ML security initiatives. You’ll play a critical role in shaping secure software delivery and AI lifecycle governance across the business.
Responsibilities:
- Lead and mentor multiple DevSecOps and security engineering teams across infrastructure and platform environments
- Define and execute DevSecOps strategy, including CI/CD, IaC security, and cloud-native architectures
- Implement and oversee security controls for AI/ML pipelines, including protection against model and data threats
- Establish governance frameworks for AI security, including policies, risk management, and compliance practices
- Drive automation of security tooling across pipelines (SAST, DAST, SCA, and AI artefact scanning)
- Design scalable security architectures across distributed systems and cloud platforms
- Lead incident response for security events, including AI-specific threat scenarios
- Partner with senior stakeholders to align security initiatives with broader business objectives
- Establish KPIs and metrics to track security posture, risk exposure, and team performance
Must Have Qualifications:
- 5-6+ years of experience in DevSecOps, DevOps, or Cybersecurity, including team leadership
- Strong expertise in cloud security (AWS, GCP, or OCI), CI/CD pipelines, and Infrastructure-as-Code (Terraform, Ansible, etc.)
- Hands-on experience with application and container security (Kubernetes, Docker, SAST/DAST/SCA tools)
- Exposure to AI/ML security concepts (LLMs, model security, or pipeline security)
- Experience with compliance frameworks (SOC 2, ISO 27001, SOX)
- Bachelor’s degree in Computer Science, Information Systems, or equivalent experience

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Credit Operations Analyst
London
£50000 - £70000
+ Risk Analytics
PermanentLondon
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Credit Operations Analyst
London
£50,000 to £70,000
This is an opportunity to join a growing, data-led financial services business where you will directly influence how credit decisions are made at scale. The role offers strong exposure across credit, data, and product, with a clear focus on automation and impact.
The Company
They are a fast-growing, technology-driven financial services organisation focused on improving how consumers manage their finances. The business takes a data-first approach, using modern tools and customer insights to inform decision-making. With continued growth and investment in their data capabilities, they are building out a high-performing analytics and credit function.
The Role
You will work at the intersection of credit risk, data, and decisioning, helping to improve and automate lending processes.
- Develop and enhance automated credit decisioning and underwriting logic
- Analyse lending performance and identify opportunities to improve accuracy and efficiency
- Collaborate with product, engineering, and credit teams to reduce manual processes
- Use customer and transactional data to inform lending decisions
- Support improvements in affordability assessment and decision frameworks
- Contribute to building a scalable, data-driven credit operation
Your Skills & Experience
- Strong commercial experience in credit risk within a lending environment
- Experience working on underwriting, decisioning, or credit policy using data
- Strong SQL skills for data analysis and manipulation
- Ability to translate data insights into practical lending decisions
- Solid understanding of how credit decisions are made
- Exposure to affordability assessment or open banking data is beneficial
What They Offer
- Salary between £50,000 and £70,000
- Share options
- Private medical insurance
- Statutory pension
- Opportunity to join a growing business with strong career development potential

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Staff Engineer (AI)
City of London
£150000 - £170000
+ Data Engineering
PermanentCity of London, London
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Staff Engineer (AI)
£150,000 – £170,000 + benefits
London (Hybrid)
This is a great opportunity to join a high‑growth, PE‑backed organisation where you can take ownership of building and scaling an AI‑native data platform from the ground up.
THE COMPANY:
The group’s mission is to unify their businesses into a single, powerful data platform, creating comprehensive global datasets. With strong funding and a clear acquisition strategy, they are building a category‑defining B2B data business.
THE ROLE:
You will take ownership of building and rapidly iterating on core platform features as part of a highly agile engineering team. Key responsibilities include:
- Developing and shipping working prototypes within days
- Building and improving data platform components and internal tools
- Turning complex data assets into user‑ready products
- Collaborating with senior engineers and leadership on architecture decisions
- Helping modernise and scale early‑stage prototypes into production systems
YOUR SKILLS AND EXPERIENCE:
You will bring strong capability in:
- Strong experience in Python, SQL, and TypeScript
- Hands‑on software engineering experience
- Proven ability to build and deliver products quickly in fast‑paced environments
- Experience working with data‑heavy systems or platforms
- Solid understanding of modern engineering practices
THE BENEFITS:
You will receive a salary of £150,000 – £170,000 depending on experience, along with a comprehensive benefits package and the opportunity to shape a high‑impact AI platform from day one.
HOW TO APPLY:
Please register your interest by sending your CV to Molly Bird via the apply link on this page.

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ML Engineer
London
£450 - £550
+ Data Science & AI
ContractLondon
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Machine Learning Engineer
Contract
London
Outside IR35
£450-£550 Per Day
Fully Remote
Immediate Start
The Company
They are a data-driven organisation investing heavily in modern data platforms and AI capability. With strong stakeholder engagement across the business, they are focused on embedding machine learning into core products and decision-making processes. Their environment is collaborative, with close alignment between data science, engineering, and product teams. This role offers the chance to contribute to a growing and ambitious data function.
The Role and Deliverables
- Build, deploy, and maintain machine learning models in a production environment
- Collaborate with data scientists to translate models into scalable solutions
- Develop robust data pipelines to support model training and inference
- Optimise model performance and ensure reliability in live systems
- Implement best practices for MLOps, monitoring, and version control
- Work with stakeholders to understand requirements and deliver end-to-end solutions
Your Skills & Experience
- Strong experience in machine learning engineering and model deployment
- Proficiency in Python and experience with relevant ML frameworks
- Experience working with cloud platforms and modern data infrastructure
- Strong understanding of data pipelines, APIs, and scalable systems
- Ability to collaborate effectively with both technical and non-technical stakeholders
- Familiarity with MLOps tools and best practices
How to Apply
If you are interested in delivering impactful machine learning solutions in a collaborative environment, please apply with your CV.

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Senior Machine Learning Engineer – Animation
$200000 - $275000
+ Data Science & AI
PermanentUSA
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Senior Machine Learning Engineer – Animation & Real-Time Systems
We are partnering with a Series C startup at the forefront of animation and gaming technology, building next-generation 3D avatar systems powered by machine learning. This team is redefining how characters are created, animated, and brought to life in real-time environments.
We are seeking a Senior Machine Learning Engineer with strong experience in animation systems and real-time integration. This role sits at the intersection of ML model development and production-grade runtime systems, with a heavy focus on deploying intelligent animation behaviors into interactive pipelines.
Responsibilities
- Design and develop ML-driven systems for 3D avatar generation, including skeletal structures, rigging, and motion synthesis
- Build and integrate models for motion prediction, gesture generation, and animation control into real-time pipelines
- Translate model outputs into production-ready systems within Unity or Unreal Engine environments
- Develop and optimize runtime systems for animation playback, motion matching, and behavior orchestration
- Work with mocap data pipelines, including ingestion, cleaning, and model training
- Collaborate closely with graphics engineers, technical artists, and gameplay teams to ensure seamless integration
- Contribute across the ML lifecycle, with approximately 25% focused on training and fine-tuning models and 75% on engineering, integration, and runtime systems
Requirements
- 5+ years of experience in machine learning engineering, graphics, or animation systems
- Strong proficiency in C++ and Python
- Hands-on experience with Unity or Unreal Engine in a production environment
- Deep understanding of animation systems, including skeletons, rigging, motion matching, and behavior trees
- Experience integrating ML models into real-time systems or interactive applications
- Familiarity with mocap data processing and animation pipelines
- Strong systems engineering mindset with the ability to optimize for performance and latency
Nice to Have
- Experience with character animation, procedural animation, or physics-based animation systems
- Background in gaming, simulation, or interactive media
- Familiarity with generative models applied to motion or animation
- Experience working with large-scale ML pipelines or real-time inference systems
Compensation & Location
- Base salary: $200,000 – $280,000 + equity
- Open to remote candidates; preference for Los Angeles or San Francisco
Why This Role
This is an opportunity to work on cutting-edge ML-driven animation systems that bridge offline model development and real-time interactive experiences. You will have direct impact on how next-generation avatars move, behave, and interact in dynamic environments.

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Staff Software Engineer
San Francisco
$200000 - $350000
+ Data Science & AI
PermanentSan Francisco, California
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Staff Software Engineer – AI Platform · Full-Time
About the Role
We’re looking for a Staff Software Engineer to join our AI platform team at a fast-growing, healthcare-focused startup. This is a hands-on technical leadership role – you’ll be the person who dreams up what’s possible, architects the solution, writes the code, and then hands off polished specs
You won’t be managing people. You’ll be doing the work: designing agentic AI workflows, building generative AI features, and thinking creatively about what could make our platform genuinely better for the people using it. If you’ve ever been the person in the room who says “what if we just built it this way” and then goes home and actually builds it – this role is for you.
What You’ll Do
- Design, architect, and implement agentic AI and generative AI workflows that power core platform capabilities
- Take ownership from idea to implementation – whiteboard it, validate it, ship it
- Identify creative, non-obvious opportunities to leverage AI across the platform and bring those ideas to life
- Contribute to marketing technology initiatives and help build commercially viable AI models
What We’re Looking For
- Proven experience building agentic AI systems or AI-powered chatbots from scratch – not just integrating APIs, but architecting the underlying system
- Strong Python skills across relevant frameworks – Django, Flask, and/or FastAPI
- Comfort with the full development lifecycle: design, implementation, testing, validation, and iteration
- Experience building and deploying on AWS
- Ability to code without relying on AI-assisted tooling – you understand what you’re writing and why
- A builder mentality – you move fast, think creatively, and take pride in shipping things that work
- Frontend experience with React is a plus, though backend depth is what matters most here
Nice to Have
- Experience with LangChain, LlamaIndex, CrewAI, AutoGen, or similar agentic frameworks
- Background in healthcare, health tech, or a similarly regulated industry
- Experience working with distributed or cross-timezone engineering teams
Why This Role
- Greenfield AI work – you’ll have real influence over what gets built and how
- Collaborate with a tight-knit, high-trust international team
- Meaningful domain – the work you do will have a direct impact on how healthcare is delivered
- Salary range up to 350k for the right level

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ML Scientist
San Francisco
$200000 - $280000
+ Life Science Analytics
PermanentSan Francisco, California
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ML Scientist / Researcher
Oncology AI · Foundation Models · Life Sciences
Remote
About the Role
We are building foundation models trained on human tumor biology – one of the most consequential and technically demanding challenges at the intersection of AI and medicine. As an ML Scientist, you will be a core research contributor designing and training these models across multimodal omics datasets, partnering closely with biologists and fellow research scientists to advance the state of the art in oncology AI.
This is a research-forward role for scientists who want their work to matter. We are looking for people with a track record of research excellence – those who have gone deep on model architecture, training dynamics, and rigorous experimental design. If you have built models from the ground up and published findings, we want to talk.
What You’ll Do
- Design and train large-scale foundation models on multimodal biological datasets, including genomics, transcriptomics, and other omics modalities
- Collaborate deeply with computational biologists, research scientists, and domain experts to translate biological questions into tractable modeling problems
- Drive the full research lifecycle: hypothesis formation, experimental design, model development, and rigorous analysis of results
- Contribute to agentic AI systems that reason over complex biological data
- Communicate findings internally and, where appropriate, through peer-reviewed publication
What We’re Looking For
Must-Haves
- Strong research background, typically evidenced by a PhD in machine learning, computational biology, statistics, physics, or a related quantitative field – or equivalent industry research experience
- Demonstrated ability to build and train models end-to-end, including experimental analysis and iteration
- Research excellence: first-author publications at top ML, AI, or computational biology venues are a strong positive signal
- Deep familiarity with foundation model concepts: pretraining, self-supervised learning, attention mechanisms, and large-scale training
- Comfort working at the intersection of biology and machine learning – even without a formal biology degree
Nice-to-Haves
- Experience with biological or omics data (genomics, proteomics, pathology imaging, etc.)
- Prior work in multimodal learning or multi-omics integration
- Familiarity with agentic AI systems or tool-use frameworks
- Background in oncology or disease biology
What This Role Is Not
This is not a production ML engineering or MLOps role. We are not looking for candidates whose primary experience is model deployment, serving infrastructure, or engineering-heavy systems work. The emphasis here is firmly on research depth and model development.
Compensation & Location
Base Salary: $250,000 – $288,000 (depending on experience) + equity
Location: Remote-friendly; office in South San Francisco, CA

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Director of AI
Los Angeles
$230000 - $400000
+ Data Science & AI
PermanentLos Angeles, California
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Senior AI/ML Engineer – Foundation Models & Agentic AI
Life Sciences AI | Biotech / Therapeutics / Computational Biology
What You’ll Work On
- Develop and train proprietary foundation models on multi-omics data (genomics, transcriptomics, proteomics, metabolomics)
- Design novel algorithms to integrate and differentiate across omics modalities
- Own the full training pipeline: data ingestion, tokenization, pretraining, and evaluation
- Push the state of the art – we are building models that do not exist yet
Agentic AI for Life Sciences
- Build and deploy AI agents that assist researchers across therapeutic development, computational chemistry, and biology
- Design multi-agent architectures using LangChain, LangGraph, and custom orchestration layers
- Integrate agents with internal databases, experimental systems, and third-party scientific tools
- Develop agentic workflows for use cases in cosmetics R&D, drug discovery, and clinical analysis
Production ML Infrastructure
- Own model deployment, scaling, and serving infrastructure
- Optimize inference using NVIDIA TensorRT-LLM, Dynamo, Triton, and related tooling
- Partner with software engineering on integration into our broader platform
- Maintain reliability, performance, and observability across deployed models
What We’re Looking For
Required
- Strong hands-on ML/AI engineering experience – you write real code, not just direct others
- Deep proficiency in Python and PyTorch – this is non-negotiable
- Experience training, fine-tuning, and deploying foundation models from scratch or from pretrained checkpoints
- Familiarity with the Hugging Face ecosystem (Transformers, Datasets, PEFT, Accelerate)
- Experience with LangChain and/or LangGraph for agentic pipeline development
- Working knowledge of the NVIDIA stack: TensorRT-LLM, Triton Inference Server, Dynamo
- Comfort with large-scale distributed training tools: DeepSpeed, xFormers
- Strong understanding of state-of-the-art model architectures (transformers, SSMs, diffusion, etc.)
- Ability to collaborate across technical and non-technical teams – bio, chem, software, clinical
- Excellent communication skills – you can explain a training run to a chemist
Strongly Preferred
- Experience with omics data (any modality: genomic, proteomic, transcriptomic, metabolomic)
- Background in computational biology, computational chemistry, or bioinformatics
- Prior work in biotech, pharma, or life sciences AI (not required but a plus)
- Experience building or contributing to multi-agent systems in a production environment
- Track record of independent research or open-source contributions in ML
Technical Skills Summary
Core ML / Training
- PyTorch – primary framework
- DeepSpeed – distributed training and ZeRO optimization
- xFormers – memory-efficient attention and transformer components
- Hugging Face Transformers, PEFT, Accelerate
- Training and fine-tuning large language and multimodal models
Inference & Deployment
- NVIDIA TensorRT-LLM – high-performance LLM inference
- NVIDIA Dynamo – inference orchestration and scheduling
- Triton Inference Server – model serving and batching
- Model quantization, distillation, and latency optimization
Agentic & Orchestration
- LangChain / LangGraph – agent design and multi-agent orchestration
- Tool-use, RAG pipelines, and memory systems
- API and system integration across scientific data sources

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Clinical Data Scientist
San Francisco
$160000 - $190000
+ Data Science & AI
PermanentSan Francisco, California
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Clinical Data Scientist
San Francisco, California
Remote
$160,000 – $190,000 + Equity
About the Company
This innovative health tech startup is working to improve the oncology drug development process by providing better patient data to drug developers as well as better access to clinical trials for patients. This series B startup is expending to meet demand.
About the Role
As a Clinical Data Scientist, you’ll execute the last leg of the clinical data pipeline by transforming, cleaning, validating, and delivering high‑quality clinical datasets for pharma partners. Heavy collaboration with Clinical Ops, AI Engineering, and Data Delivery.
Role Responsibilities
- Transform raw, abstracted, and AI‑processed data into CDISC SDTM/ADaM datasets
- Program statistical outputs (tables, listings, figures) in SAS/R/Python
- Investigate data anomalies across multiple messy data inputs
- Define data dictionaries and standards before study kickoff
- Handle data in a HIPAA‑aligned manner
Key Requirements
- 2-5 years in clinical data science, stat programming, or clinical data management
- Pharma/Biotech experience
- SAS, R, Python, SQL
- Real‑world clinical data or oncology trials
- CDISC SDTM/ADaM

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AI Engineer
San Francisco
$200000 - $220000
+ Life Science Analytics
PermanentSan Francisco, California
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AI Engineer
San Francisco, California
Remote
$200,000 – $220,000 + Equity
About the Company
This innovative health tech startup is working to improve the oncology drug development process by providing better patient data to drug developers as well as better access to clinical trials for patients. This series B startup is expending to meet demand.
About the Role
As an AI Engineer, you will design and deliver applied AI systems (LLMs/CV/multimodal) that automate clinical variable abstraction and clinical note generation-with repeatable validation, robust documentation, and HITL feedback loops. Heavy emphasis on data engineering and backend rigor to make models usable and efficient.
Role Responsibilities
- Build models and pipelines across EMR/EHR, imaging, clinical reports
- Translate ambiguous clinical requirements into measurable ML objectives
- Define metrics, design experiments, estimate error; review peer work
- Deliver validated AI components for abstraction/note generation; meaningfully reduce manual QA workload via HITL; standardize documentation/testing; establish performant data manipulation patterns (e.g., PySpark, SQL/Postgres) that speed iteration.
Key Requirements
- Python
- Pytorch or Tensorflow
- Data engineering: PySpark, SQL, Postgres, query tuning, data modeling
- Cloud data platforms (e.g., Databricks, S3/Snowflake/Azure/GCP)
- Nice to have experience in oncology/biotech/health tech

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