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About the Role
As a Senior Software Engineer at Formation Bio, you will build high-leverage software across the organization, turning ambiguous problems into products and systems that enhance decision-making and speed. This AI-native role involves using modern AI and agentic development tools as a core part of the engineering workflow and creating software that incorporates AI responsibly.
Responsibilities
- Own meaningful product or platform outcomes from problem definition through design, implementation, launch, and iteration.
- Build and operate production services, APIs, integrations, databases, asynchronous workflows, and distributed systems.
- Build software for people, applications, AI Enabled Employees, and Agents, including the tools, APIs, permissions, state, observability, and failure handling required for reliable use.
- Design and ship AI-enabled and agentic workflows, including tool use, retrieval, data access, evaluation, and appropriate human review.
- Use LLMs and agentic coding systems daily for exploration, prototyping, implementation, testing, debugging, documentation, and automation while maintaining a high bar for validation.
- Partner with Data Engineering on application data models, data products, data contracts, and access patterns.
- Partner with Data Science on ML-powered capabilities, model interfaces, evaluation, and production integration.
- Partner with SRE on deployment, reliability, observability, security, and infrastructure decisions.
- Make pragmatic tradeoffs between speed, quality, maintainability, and future flexibility.
- Use engineering rigor proportional to the risk and context of the system.
- Reprioritize quickly as new information changes the highest-value path, and communicate decisions and tradeoffs clearly to technical and non-technical partners.
- Review designs and code, mentor engineers, and raise the bar for product judgment and engineering quality.
Requirements
- 5+ years of experience building and shipping production software, or equivalent senior-level experience.
- Experience in pharmaceutical, biology, and/or biotechnology software and data is a strong plus.
- Strong backend and systems engineering fundamentals, including APIs, distributed systems, databases, cloud services, and asynchronous workflows.
- Daily experience using AI tools, LLMs, or agentic development systems as part of the engineering workflow.
- Experience building AI-enabled software, agentic workflows, retrieval systems, tool integrations, or other ML-powered products is a strong plus.
- Familiarity with ML concepts such as training versus inference, embeddings, retrieval, evaluation, data quality, and model limitations is a plus.
- Strong product judgment and the ability to make progress with incomplete information, identify high-value problems, and adapt quickly as priorities change.
- Experience operating production software with appropriate testing, observability, security, and follow-through after launch.
- Exceptional communication and collaboration skills across Product Engineering, Data Engineering, Data Science, SRE, and non-technical partners.
Skills
- Backend Engineering
- Systems Engineering
- Product Engineering
- AI Engineering
- APIs
- Distributed Systems
- Databases
- Cloud Services
- Asynchronous Workflows
- AI Tools
- LLMs
- Agentic Development Systems
- AI-enabled Software
- Agentic Workflows
- Retrieval Systems
- Tool Integrations
- ML-powered Products
- ML Concepts (training vs inference, embeddings, retrieval, evaluation, data quality, model limitations)
- Testing
- Observability
- Security
- Communication
- Collaboration
Location
- New York City metro area
- Boston metro area
- Research Triangle (NC)
- San Francisco Bay Area
Work Type
- Hybrid (3 days per week in office)
Experience Level
- Senior
Salary/Compensations
- $185,500 - $232,000
Benefits
- Equity
- Comprehensive benefits
- Generous perks
About the Company
- Formation Bio is a tech and AI driven pharma company focused on efficient drug development.
- Advancements in AI and drug discovery have created more candidate drugs than the industry can progress due to the high cost and time of clinical trials.
- Formation Bio has built technology platforms, processes, and capabilities to accelerate all aspects of drug development and clinical trials.
- The company partners, acquires, or in-licenses drugs to develop programs past clinical proof of concept and beyond.
- Formation Bio is backed by investors including a16z, Sequoia, Sanofi, Thrive Capital, John Doerr, Spark Capital, SV Angel Growth, and others.
- The company's values are the driving force behind its mission to revolutionize the pharma industry.
- Every team and individual at the company shares these values and plays a key part in the mission to bring new treatments to patients faster and more efficiently.
Equal Opportunity
- Formation Bio is committed to building a diverse and inclusive team.
- We are an equal opportunity employer and welcome candidates from all backgrounds.
- All qualified applicants will receive consideration for employment without regard to race, color, creed, religion, national origin, ancestry, sex (including pregnancy, childbirth, breastfeeding, and related medical conditions), gender identity or expression, sexual orientation, age, disability, genetic information, marital status, military or veteran status, or any other characteristic protected by federal, state, or local law.