
Lunar · San Francisco
About Us: Lunar is a stealth technology company building a new type of software platform for health systems. We are on a mission to revolutionize healthcare wi...
Lunar is a stealth technology company building a new type of software platform for health systems. We are on a mission to
revolutionize healthcare with cutting-edge, AI-powered software designed to help every hospital deliver world-class care for their
patients. Our platform is already the core backbone of health systems today, transforming clinical and operational workflows at
scale with the world’s first AI-native hospital information system.
This next-generation platform is a fundamental rebuild of the information infrastructure that runs health systems. All of it –
from doctors, nurses, pharmacists, lab technicians, coders, billers, supply chain, and even patients – Lunar’s software powers
everything, soup-to-nuts. We believe that this mission is the moon landing of healthcare – something so consequential and
ambitious that most people believe it to be impossible.
Backed by Silicon Valley’s preeminent venture capital firms, we believe in the power of a high performance team of seasoned
professionals operating at the peak of their abilities. We value people who are driven, curious, have sound judgement, and care
about doing the best work of their careers.
We run hospitals on Elixir. We’ve embraced Elixir for its fault tolerance, concurrency, and scalability - essential for handling
real-time patient data in mission-critical settings like Emergency Departments, ICUs, and Operating Rooms.
We are looking for a Staff Product Engineer who’s excited to tackle some of the hardest technical problems in healthcare - and do
it with a fast-moving, and deeply mission-driven team. If you care about writing clean, robust code and want to rebuild from
scratch the software infrastructure of modern hospitals, we’d love to talk.
Here are some deep technical problems you may tackle in your first 6 months:
platform with Elixir at its core.
permissions that respects clinical data structure and patient data ownership, while enabling population-level insights for
better public health.
real-time data sync in environments where downtime isn’t an inconvenience - it’s a risk to patient care.
monitors, imaging equipment, lab equipment, and more - reliably and in real time.
and turn confusing, click-heavy workflows into fast, intuitive experiences.
technologies. We use tools such as Phoenix, Elixir, Python, Erlang, Javascript, and more.
applying strong fundamentals and first principles thinking.
Hospitals are some of the most complex, under-served environments in all of tech. We’re bringing the best of modern software
practices to an industry that’s been left behind - and building tools that clinicians love, not tolerate.
If you’re an engineer who wants to work on meaningful problems with real-world impact, this is your chance.
At Lunar, we know our greatest strength is the diverse blend of backgrounds, experiences, and ideas that our team members
contribute. We’re passionate about healthcare, but we are also passionate about creating an inclusive workplace where every unique
talent and perspective is not just respected, but celebrated. We thrive on embracing differences and are fully committed to
fostering a fair, supportive, and dynamic environment where everyone has the opportunity to shine. All applicants will be
considered for employment regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, veteran
or disability status.
About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we’re on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other’s unique experiences and embrace the flexibility to do your best work. Creating a career you love? It’s Possible. At Pinterest, AI isn't just a feature, it's a powerful partner that augments our creativity and amplifies our impact, and we’re looking for candidates who are excited to be a part of that. To get a complete picture of your experience and abilities, we’ll explore your foundational skills and how you collaborate with AI. Through our interview process, what matters most is that you can always explain your approach, showing us not just what you know, but how you think. You can read more about our AI interview philosophy and how we use AI in our recruiting process here. Team & Mission The Measurement Products team helps advertisers measure the incremental impact of their Pinterest campaigns and make informed investment decisions. We own and operate core measurement products including Pinterest Conversion Lift (PCL) Studies and Brand Lift Studies. We build the platform these products run on and are evolving it into our next‑gen Measurement Hub, an extensible platform that enables faster product iteration, onboarding of new study types, and deeper integration with Pinterest’s enterprise data and experimentation systems. Our mission is to measure true incremental impact and translate it into actionable insights for advertisers and partners. Role Summary We’re seeking a Staff Engineer to lead the architecture and technical direction of the measurement platform behind how advertisers understand the impact of their investment on Pinterest. You’ll drive end‑to‑end platform evolution (pipelines, services, correctness, reliability), partner closely with Product and Data Science, and raise the bar on rigor, trust, and operational excellence in ads measurement. WHAT YOU’LL DO: * Own end‑to‑end architecture and delivery of features for lift measurement products, from design and implementation through rollout and ongoing reliability. * Design, build, and optimize large‑scale data pipelines that power study setup, experiment execution, and results computation. * Drive AI enablement across the team by building the supporting tooling and processes (CI checks, test strategy, templates), coaching engineers, and ensuring adoption results in sustained improvements to delivery speed and system quality. * Translate measurement methodology into production systems: partner with Data Science to operationalize study design requirements into pipelines, services, tooling, and guardrails. * Build “rigor by default” mechanisms: automated data validation, randomization/holdout integrity checks, imbalance diagnostics, and continuous verification/backtesting. * Raise the bar on data quality and trust: define SLAs, build monitoring and anomaly detection, and lead root‑cause analysis for pipeline and study issues. * Mentor and up level engineers, driving strong technical execution and cross‑functional collaboration. WHAT WE’RE LOOKING FOR: * BS+ in Computer Science (or related field) or equivalent practical experience. * 8+ years of professional software engineering experience, with a focus on data‑intensive systems. * Strong proficiency building and operating large‑scale data pipelines (batch and/or streaming) using Java/Scala/Kotlin or Python, plus SQL. * Experience designing reliable services and APIs, with solid foundations in distributed systems, data modeling, and performance optimization. * Demonstrated ability to transform a team’s engineering workflow using AI—from pilot to broad adoption—through tooling, enablement, and change leadership, with clear metrics (cycle time, defect rate, on-call load, incident rate). * Experience in AdTech and measurement products (e.g., conversion lift, brand lift) or adjacent experimentation/analytics platforms. * Working knowledge of experimentation and causal measurement fundamentals (randomization, holdouts, confounders, significance, power). * Practical experience with backtesting, controlled rollouts, and continuous verification for correctness in measurement/analytics systems. * Demonstrated ability to lead large cross‑functional initiatives, drive alignment, and deliver measurable impact through technical leadership. In-Office Requirement Statement: * We recognize that the ideal environment for work is situational and may differ across departments. What this looks like day-to-day can vary based on the needs of each organization or role Relocation Statement: * This position is not eligible for relocation assistance. Visit our PinFlex page to learn more about our working model. #LI-REMOTE #LI-KK6 At Pinterest we believe the workplace should be equitable, inclusive, and inspiring for every employee. In an effort to provide greater transparency, we are sharing the base salary range for this position. The position is also eligible for equity. Final salary is based on a number of factors including location, travel, relevant prior experience, or particular skills and expertise. Information regarding the culture at Pinterest and benefits available for this position can be found here. US based applicants only $177,185—$364,795 USD Our Commitment to Inclusion: Pinterest is an equal opportunity employer and makes employment decisions on the basis of merit. We want to have the best qualified people in every job. All qualified applicants will receive consideration for employment without regard to race, color, ancestry, national origin, religion or religious creed, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender, gender identity, gender expression, age, marital status, status as a protected veteran, physical or mental disability, medical condition, genetic information or characteristics (or those of a family member) or any other consideration made unlawful by applicable federal, state or local laws. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. If you require a medical or religious accommodation during the job application process, please complete this form for support. By submitting this application, I certify that all information submitted in my application and throughout the hiring process is true, accurate, and complete to the best of my knowledge. I understand that any false statement, omission, or misrepresentation may disqualify me from employment consideration or result in termination if discovered after hire.
F2 STAFF SOFTWARE ENGINEER, INFRASTRUCTURE Location: San Francisco Employment Type: Full time Location Type: Hybrid Department: Engineering, Product, Design (EPD) Compensation: $200K – $300K • Offers Equity The total rewards package at F2 includes base salary, equity (stock options), and benefits. -- The Role: We are seeking a hands-on Infrastructure Tech Lead who thrives in building from 0‑1 and driving execution, directly contributing production-level systems while shaping our core technical foundation. You will collaborate closely with the founding team to architect, deploy, and scale the cloud infrastructure powering F2's AI-driven enterprise analytics platform. What you'll do: * Hands-on platform building. Architect and implement foundational cloud infrastructure from scratch: compute, networking, CI/CD, and observability. Actively writing infrastructure-as-code and shipping production systems, not just diagrams. * Own the infrastructure architecture. Define and execute the technical vision and multi-year roadmap for our AWS-based platform (ECS/Fargate, containerized Python and Node services), ensuring rapid iteration while scaling reliably with enterprise demand. * Run durable, AI-heavy workloads. Operate and scale our workflow orchestration layer (Temporal), streaming pipelines, vector search infrastructure, and high-throughput LLM inference paths; balancing latency, throughput, and cost. * Design for security and compliance. Build infrastructure that meets SOC 2 requirements from day one: multi-tenant isolation, secrets management, least-privilege IAM, audit logging, and encrypted data flows across storage, database, and AI providers. * Establish operational excellence. Set and uphold standards for IaC, deployment pipelines, incident response, SLOs, and on-call practices; mentor engineers to foster a culture of reliable, observable, cost-efficient systems. * Cross-functional collaboration. Partner with product, backend, frontend, and enterprise customers to translate requirements (data residency, uptime guarantees, deployment models_ into pragmatic infrastructure solutions. What you bring: * Hands-on technical leadership. 7+ years building and scaling mission-critical cloud infrastructure on AWS and/or GCP, with demonstrated experience architecting platforms from the ground up. * Deep container and orchestration expertise. Production experience with ECS/Fargate, Kubernetes, or equivalent: including service networking, autoscaling, zero-downtime deploys, and multi-environment release strategies. * Infrastructure-as-code fluency. Strong command of Terraform, Pulumi, or CloudFormation, plus CI/CD pipeline design (GitHub Actions or similar) and GitOps workflows. * Data and AI infrastructure experience. Familiarity operating Postgres at scale (RDS, Supabase, or self-managed), Redis, message/workflow systems (Temporal, SQS, Kafka), and ideally vector databases or LLM serving infrastructure. * Security-first mindset. Practical experience with SOC 2 (or similar) compliance programs, IAM design, VPC architecture, secrets management, and multi-tenant data isolation. * Execution-driven mindset. You thrive in environments where you own systems end-to-end, iterate rapidly, and deliver production-ready solutions; and you measure success in uptime, latency, and dollars saved. * Passionate builder who enjoys solving complex distributed-systems challenges and iterating toward clear, impactful goals.
About WorkWhile WorkWhile is on a mission to help workers earn a better living and live better lives. More than 80 million Americans work hourly jobs, often with unpredictable schedules that pay close to minimum wage and offer limited benefits, leading to financial instability. WorkWhile is revolutionizing frontline work by creating a more flexible and efficient labor market. Powered by AI, the WorkWhile platform helps businesses quickly access high-quality talent. Workers benefit from same-day pay, free telehealth services, upskilling, and the ability to choose shifts that match their skills and schedules. We have the audacious goal to align incentives and solve inefficiencies in the labor market, disrupting the $650 billion staffing and recruiting market. Backed by Khosla Ventures and recognized by the Inc. 5000 for 10x growth, WorkWhile is reshaping the future of work. What you'll do * Own and evolve complex, user-facing product areas end-to-end - from product definition and system design to implementation, launch, and iteration * Partner closely with product, design, and engineering leadership to shape roadmap decisions and translate ambiguous problems into durable solutions * Lead high-leverage initiatives that span frontend, backend, and data concerns, setting clear technical direction and guiding execution * Make thoughtful tradeoffs between user experience, system complexity, and delivery speed in a fast-moving product environment * Raise the bar on product quality, system correctness, and engineering craft across the stack * Act as a force multiplier for the team: reviewing designs, mentoring engineers, and unblocking others What we're looking for * Significant experience building and owning product systems end-to-end, with depth in either frontend (JavaScript, React/React Native) or backend (Python) * Strong working fluency across the stack, with the ability to lead product work beyond your primary area of expertise * A product-minded approach to engineering — you care deeply about user outcomes, not just technical elegance * Proven ability to operate in ambiguity: framing problems, proposing options, and guiding teams toward pragmatic solutions * Strong communication skills and the ability to influence technical and product direction across disciplines * Experience mentoring engineers and raising team-wide technical quality (people management not required) Nice to have * Experience working on marketplace, fintech, or data-sensitive products * Background in scaling early-stage products or evolving systems as usage grows * Interest in shaping engineering practices and standards as the team scales Engineering @ WorkWhile * We’re a small and mighty team with senior engineers from Rippling, Stripe, DoorDash, Faire among others * We value user-centricity, competence, speed, and having fun * We embrace independence and take ownership of our projects, yet are also great team players * We deal in outcomes, not projects * Read more about our team at https://tech.workwhile.ai/ Benefits & Perks * Remote-friendly work culture with office hubs in SF, NY, Seattle & Toronto * In-person company offsites * Medical, dental, & vision coverage * Flexible time off * 401(k) with employer match * WFH stipend to support your home office needs WorkWhile has a diverse, mission-driven, and supportive culture—we look for people who want to take ownership, are energized by ambiguity, and strive to make a lasting impact. If this resonates with you, we’d love to chat! WorkWhile is an Equal Opportunity Employer. Women, minorities, individuals with disabilities and protected veterans are encouraged to apply.