Company Name: Trial Library Job Details: Hiring,Remotely,in,San,Francisco,,CA,In-Office,or,Remote,155K-205K,Annually,Senior,level Job Url: https://builtin.com/job/senior-engineer-backend-data/7916588 Job Description: Our mission is to improve health equity by expanding access to cancer precision medicine.About Trial LibraryTrial Library, Inc. is a venture-backed startup founded in 2022 focused on accelerating enrollment and retention to clinical trials with an AI-platform. Trial Library is a mission-driven health technology company dedicated to improving health equity in cancer care by expanding access to precision medicine through clinical trials. We work with community oncology sites, patients, and industry partners to ensure that clinical research is accessible, navigable, and inclusive.We are seeking a hands-on Senior Engineer to build new critical systems and scale our clinical trial recruitment platform. You'll take ownership of major initiatives as we expand into new markets and service offerings. This could include building an external-facing reporting and analytics platform, standing up production-grade APIs for partner interconnectivity, or scaling our data infrastructure.Our engineering team embodies our company culture: high trust and low politics, where fast decision-making and open feedback are the norm. We foster a psychologically safe, collaborative environment where engineers are empowered to take action, speak up, and solve problems efficiently.Your ResponsibilitiesDesign and build scalable backend systems: Own the architecture and implementation of core backend services, APIs, data systems, and infrastructureDrive technical decisions: Make pragmatic architectural choices, evaluate tradeoffs, and set technical direction for your areas of ownershipShip production code daily: Write code, review PRs, debug issues, and deliver features hands-on as a working engineerAdvocate for quality: Push back on unrealistic timelines, champion technical excellence, and ensure we're building sustainablyCollaborate cross-functionally: Partner with engineering leadership, product, frontend engineers, AI engineers, and SDET to deliver end-to-end solutionsEnsure compliance and security: Maintain healthcare compliance standards (HIPAA) and implement security best practices across systemsElevate engineering practices: Establish testing strategies, development workflows, and technical standards as the team scalesQualificationsStrong Python and SQL skills: our stack is Python (AWS Lambda) + Postgres, and you'll be writing both dailyStartup experience: you've built things from scratch at an early-stage company and embraced the fast-paced, dynamic environmentSmall team comfort: excited to wear many hats, jump into different areas as needed, and thrive without rigid role boundariesHigh autonomy:  as the second backend engineer, you'll work directly with a Staff Engineer and have real influence on technical direction. You figure things out independently, make decisions with incomplete information, and own outcomesHands-on mentality: you're an engineer first who writes code daily, not an architect who only reviews0-1 building experience: you've taken something from idea to production and know what it takesSystems thinking: strong understanding of backend architecture, APIs, databases, and scalabilityCommunication skills: can push back respectfully, explain technical tradeoffs, and work cross-functionallyHealthcare alignment: genuinely interested in improving clinical trial access and health equityNice to HaveData and analytics platform experience: building data warehouses, ETL pipelines, analytics infrastructure, and external-facing reporting/analytics platformsCloud infrastructure experience: we use AWS, but experience with any major cloud provider is valuableAPI design experience: RESTful APIs, API documentation, versioning strategiesAI-augmented development: experience leveraging AI coding tools (Claude Code, Cursor, GitHub Copilot, etc.) to boost productivityHealthcare/regulated industry background: HIPAA, clinical data, healthcare techDevOps/Infrastructure: CI/CD, monitoring, logging, infrastructure as codeOur Core Values1. Ally is our favorite moniker2. The most inclusive approach is worth the work3. Celebrate measurable improvements in equity outcomes4. Fearless advocates for belonging5. Incentives matter to stakeholders choosing our products6. Taking initiative is actually giving 7. We are accountable for the experience of patients and providers8. Empathy and humility are the real dynamic duoTrial Library, Inc. provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws, regulations, and ordinances.