WHO WE ARE
We’ve been obsessed with brains. We believe everyone deserves a sharper, healthier mind. More than 100 million people turn to Lumosity to boost focus, strengthen memory, and think faster — making brain training part of their everyday lives. We also support the Human Cognition Project, collaborating with over 90 university partners to advance research in cognitive training.
We’re here to do the best work of our lives — building products that make minds sharper and healthier. Join us and help shape the future of brain health.
WHAT WE’RE LOOKING FOR
In this role, you’ll work closely with fellow engineers to design and build software at scale, reaching a large consumer audience. You’ll also collaborate with product managers, designers, scientists, and other stakeholders. We’re looking for someone with a strong history of shipping successful products and a genuine passion for cognitive health and wellness.
KEY RESPONSIBILITIES
- Lead by example through high-quality, scalable code that solves complex problems.
- Contribute and influence system-level architecture and design decisions, working collaboratively with team members
- Design, implement and own scalable distributed systems that meet maintainability, scalability and performance demands
- Lead the definition of implementation details (the “how”) by working with engineering teammates
- Build and scale systems using our core stack : Node.js, TypeScript, GraphQL, Postgres, Kafka, AWS (Lambda, EKS, RDS)
- Collaborate on technical specifications and implementation plans
- Partner with product managers and stakeholders to define precise product requirements
- Champion best engineering practices and propose strategies for continued improvement
- Participate in agile processes and continuously evolve them for better efficiency
- Mentor and guide junior engineers through code reviews, technical discussions, and knowledge sharing
- Lead cross-team initiatives to define and standardize architectural patterns that enhance system scalability and resilience
WHO YOU ARE
A developer at heart with a knack for clean, maintainable, well-documented code that aligns with modern standardsA system thinker capable of designing and evolving high-level architectureSelf-starter — motivated to take initiative and own outcomes end-to-endCollaborative team player who thrives in small teamsA continuous learner — willing to evolve technically and professionallyEmpathetic communicator — respects diverse perspectives and communicates ideas clearlyRisk-aware — proactively identifies and mitigates technical or architectural risksComfortable navigating ambiguity, and excited to bring clarityPassionate about creating meaningful, user-centric productsA technical leader who can guide architectural decisions and mentor teammatesShare the same vibe as we doWHAT YOU HAVE
7+ years of backend development experience in production environmentsProven experience with distributed systems and system design principlesSkilled in building Microservices, RESTful, and GraphQL APIs using modern tech stacksStrong working knowledge of relational (e.g., Postgres) and non-relational databasesProficient in Node.js, TypeScript, or similar backend languagesFamiliarity with modern CI / CD tools and automation pipelinesSolid experience using AWS, particularly with Lambda, EKS (Elastic Kubernetes Service), RDS (Relational Database Service), and other cloud-native servicesStrong ability to analyze and convert business requirements into scalable technical solutionsProven track record in shipping performant, scalable software used by large audiencesPrior startup experience is a bonusExperience driving cross-functional technical efforts and setting long-term architectural directionProven ability to mentor and support the growth of junior and mid-level engineersDeep expertise in performance tuning and scaling distributed backend systemsWHAT WE OFFER
The excitement and flexibility of an early-stage startup with the stability of a mature businessCompetitive salaryAI is in our DNA. From Cursor to ChatGPT, v0 to Claude, we use cutting-edge tools to focus on the things that matterHybrid work model : 3 days a week in office, designed for deeper collaboration and the fun of working side-by-side. Expect spontaneous whiteboard sessions, team lunches, and regular board-game hangoutsFlexible paid time offComprehensive, company-sponsored medical insurance (including spouse, children and parents / in-laws)Annual learning stipend for courses, books, and upskillingOffice commute expense reimbursement and a location just a short walk from the nearest metroSet in a lively neighborhood with plenty of cafés and hangout spots to explore after workMonthly fitness / wellness reimbursementsCatered lunches and a fully stocked pantry — complete with the real MVP : strong South Indian filter coffee. And a library nook stacked with books you’ll actually want to readFree Lumosity Family subscription — finally, a way to settle once and for all who’s the real genius in the family