Note: The job is a remote job and is open to candidates in USA. Block is a technology company focused on increasing access to the global economy through financial and commerce products. The Senior ML/AI Modeler will build and deploy agentic and generative AI systems for risk and compliance automation, including copilots, autopilots, and transformer-based machine learning models. The role owns end-to-end production systems and drives strategic initiatives with product, engineering, platform, and operations stakeholders.
Responsibilities
- Experiment and deploy AI copilot and autopilot systems at scale to improve analyst productivity and/or eliminate manual decision loops altogether
- Own the end to end system including API calls to disparate data sources, advanced prompt tuning, orchestration, metrics and evaluation, productionization and monitoring
- Leverage diverse data sets that include payment transactions, connected users and asset graphs, unstructured text data and user profile information to build transformer based ML models to improve downstream detection tasks
- Work cross functionally with product, platform, engineering and operational stakeholders to deploy production grade systems and monitor and tune ongoing performance
- Use Python ML stack, LLMs, Pytorch, Snowflake, Airflow based tools, data platform and cloud services (both GCP & AWS) to get the job done
- Leverage agentic tools (Claude Code/Codex/Openclaw) to supercharge your research, development, devOps and documentation work as part of your day to day
Skills
- 8+ years of Machine Learning modeling experience
- A Masters or advanced degree in computer science, data science, operations research, applied math, stats, physics, or a related technical field
- End to end experience of building and deploying ML/AI to production systems (batch and real time) that are performant at scale
- Experience of independently owning, influencing and driving programs with multiple cross functional stakeholders that have significant business impact
- Have a curious, growth-oriented mindset and the ability to think in first principles to identify creative solutions that demonstrate value
- Full stack ML experience is strongly preferred
- 3+ yrs experience with AI engineering, Large language models, and a background in traditional NLP techniques is a strong plus for this role
Benefits
- Remote work
- Medical insurance
- Flexible time off
- Retirement savings plans
- Modern family planning
Company Overview
Company H1B Sponsorship