Software Engineer, Data Platform

Every breach, every failed audit, every new hire stuck in onboarding purgatory traces back to the same question: who has access to what — and should they?

Identity is where modern companies break. Too much access leaks data. Too little grinds the business to a halt. Lumos is the industry's first Autonomous Identity Platform — software that doesn't just surface access risk, but acts on it. We started with a self-service AppStore and grew into the critical infrastructure connecting apps, identities, and data for GitHub, MongoDB, Mars, Pinterest, Anduril, Intercom, Roku, and Netskope. At the center is Albus, our AI agent for identity — mining roles, approving access, and catching the drift humans miss.

You'll ship work that thousands of IT and security teams touch every day. You'll own problems without playbooks, because the category is being redefined in real time — by us.

Why Lumos?

• 🚀 Jump on a rocketship. Since launching out of stealth in April 2022, we've grown from 20 to ~130 Alchemists and raised over $65M from a16z, Scale, Neo, Greg Brockman (President at OpenAI), and Phil Venables (CISO at Google).
• ⭐ Customers love us — and so does the industry. Named a Strong Performer in the 2026 Gartner Voice of the Customer for IGA — 4.7/5, with 96% of reviewers saying they'd recommend us. Our customers cut time-to-access by 98%, slash IT tickets by 72%, and eliminate excess privilege at scale.
• 🏆 A culture worth joining. Three years running on Forbes' Top 100 Best Startup Employers in America (2024, 2025, 2026) — measured on culture, retention, growth, and job creation. That's our Alchemists, not our marketing.

At the heart of our products is our identity data platform, the systems that ingest identity data from hundreds of third-party integrations and turns it into the trusted, insight-rich primitives that power every Lumos product.

As a Software Engineer on our Data Platform team you will drive the evolution of our identity data backbone, the systems every Lumos product depends on. You will be instrumental in building robust, scalable, and reliable platform software. You will play a key role in designing and operating the software that turns raw identity inputs into a trusted foundation for the product.

We’re a startup that values ownership, curiosity, and trust—and we’re looking for engineers who love building platform infrastructure that enables teams to move faster while improving resilience and visibility.

✨ YOUR RESPONSIBILITIES

• Design, develop, and operate systems that transform high volumes of identity data from third-party integrations to product consumers with correctness, freshness, and operational rigor.
• Build the shared primitives and interfaces (APIs, services, materialized models) that abstract raw identity data into the building blocks that power our products.
• Contribute to the technical vision for a world-class data infrastructure that empowers engineering, product, and AI teams, enabling seamless access to high-quality data.
• Establish SLOs, observability, and operational tooling that catch and remediate failures in identity data systems before they reach customers.
• Promote and implement software engineering best practices for building scalable, reliable, and secure data-centric applications. Elevate the principles of software engineering within the data domain.

🙌 WHAT WE VALUE

While specific qualifications are less important than your drive and potential, the following experiences will set you up for success in this role:

• 3-7 Years of experience as a backend or platform engineer building production data systems other teams depend on, either ingestion and sync pipelines (Dagster, Airflow, or comparable orchestration) or service layers in front of a transactional database (MySQL/Postgres) that abstract storage from internal consumers.
• Strong backend development skills in Python, Go, or TypeScript, with a focus on clean API design, testability, and observability.
• Strong instinct for data correctness, observability, and SLOs in systems where downstream products take action on the output.
• Experience designing service or API interfaces over a transactional datastore (MySQL/Postgres) defining contracts that let producers and consumers evolve independently.
• Familiarity with identity and access governance (IGA) data (e.g. identities, accounts, entitlements, group memberships) and how its correctness, freshness, and traceability shape downstream governance outcomes at scale.

💰 PAY RANGE

• $170,000 - $220,000 Note that this range is a good faith estimate of likely pay for this role; upon hire, the pay may differ due to skill and/or level of experience.

💸 Benefits and Perks:

• 💻 Remote-first culture – Work from anywhere within ±4 hours of Pacific Time.
• 🏥 Medical, dental & vision insurance – 100% of premiums covered for employees, 60% for dependents. HSA and FSA available with employer contribution. International benefits align with local standards.
• 🧠 Mental health support – Access to mental health resources and support.
• 💪 Monthly wellness stipend – A monthly stipend for gym memberships, fitness apps, and whatever helps you recharge.
• 🛡️ Life & disability insurance – Life insurance, short-term disability, and long-term disability coverage available.
• 🌴 Flexible PTO – Flexible time off with a minimum annual requirement, because rest is part of doing your best work.
• 👶 Parental leave – Up to 16 weeks of paid parental leave for expecting parents.
• 📚 $1,000 annual learning stipend – An annual budget for courses, books, conferences, and certifications.
• ✈️ Company & team offsites – Company and team bonding trips throughout the year, fully covered by Lumos.
• 💰 401(k) with matching – Employer 401(k) matching to help you save for the future.