Full Stack Engineer

Mem0

$130K — $180K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Proven experience shipping full-stack web applications at scale using Next.js/React and Python.
  • Strong Python skills with familiarity in modern web stacks (REST/GraphQL, Postgres, Redis, Celery/queues).
  • Solid front-end skills including component architecture, state management, forms, accessibility, SSR/ISR.
  • Demonstrated ownership of features end-to-end from design to deployment and post-launch iteration.
  • Strong focus on code quality: testing, type safety, CI/CD, and diligent review culture.
  • Excellent communication and teamwork abilities in cross-functional settings.
  • Experience operating production systems under low-latency conditions.

Responsibilities

  • Ship end-to-end features by designing APIs, building UIs, writing backend logic, and deploying to production.
  • Optimize performance for scale and speed including latency, caching, and reliable backend performance.
  • Ensure code quality through testing, linting, reviewing pull requests, and maintaining documentation.
  • Collaborate with Design for UX improvements, Research for new capabilities, and customers for refining requirements.
  • Add observability to systems, set alerts, debug production issues, and drive continuous improvement.
  • Lead with product insight by prioritizing features and using data and feedback for iteration.
  • Take initiative beyond defined roles by helping teams unblock and adapting to new tools quickly.

Benefits

  • Opportunity to work on innovative AI memory technology.
  • Collaborative office-first culture in San Francisco promoting spontaneous idea sharing.
  • Emphasis on building reliable and thoughtfully designed systems for long-term success.
  • Extreme ownership culture where every team member can solve problems and implement solutions.
  • High trust environment that celebrates diverse ideas and contributions based on merit.
Full Job Description
Role Summary

Build the product surface of the Mem0 Platform, our memory infrastructure powering the next generation of AI agents.

You'll own features end to end across Next.js and Python, shipping quickly without compromising code quality, performance, or reliability. You'll partner closely with design, research, customers, and leadership to transform real-world problems into elegant, scalable product experiences.

This is an opportunity for an engineer who thrives on ownership, enjoys building across the stack, and wants to have an outsized impact on both the product and the company.

What You'll Do
  • Ship end-to-end features: Design APIs, build intuitive UIs, implement backend services, own data models, and deploy production-ready software.
  • Build for scale and speed: Optimize latency, caching, database queries, and application performance to deliver fast, reliable user experiences.
  • Own quality: Write comprehensive tests, maintain strong typing and linting standards, participate in thoughtful code reviews, and keep the codebase clean and maintainable.
  • Collaborate deeply: Work closely with Design to craft exceptional UX, partner with Research to integrate cutting-edge memory capabilities, and engage directly with customers to refine requirements.
  • Operate what you build: Implement observability, monitor production systems, troubleshoot issues, and continuously improve reliability and performance.
  • Lead with product sense: Make thoughtful technical and product tradeoffs, prioritize effectively, and iterate based on user feedback and data.
  • Go beyond your lane: Unblock teammates, embrace new technologies, and do whatever it takes to deliver exceptional outcomes.


Minimum Qualifications
  • 5+ years of experience building and shipping production-grade full-stack applications at scale.
  • Strong proficiency in Python and modern web application architecture.
  • Experience building with Next.js, React, REST APIs, PostgreSQL, Redis, background job systems, and modern backend frameworks.
  • Demonstrated track record of owning features end to end, from technical design through deployment and post-launch iteration.
  • Strong engineering fundamentals with a focus on testing, CI/CD, type safety, maintainability, and code quality.
  • Experience operating production systems using logging, metrics, tracing, and monitoring tools while meeting low-latency performance requirements.
  • Excellent communication and collaboration skills with the ability to work cross-functionally across engineering, design, research, and go-to-market teams.
  • Bachelor's or Master's degree in Computer Science or a related technical field, or equivalent coursework and practical experience.
Nice to Have
  • Experience building AI-native products using LLMs, RAG, embeddings, or vector databases.
  • Familiarity with vLLM, model serving, or lightweight ML infrastructure.
  • Experience building real-time applications using streaming, WebSockets, Server Actions, background jobs, or large-scale file processing.
  • Infrastructure experience with Docker, Kubernetes, IaC, AWS, GCP, or Vercel.
  • Strong product intuition with attention to UI polish, accessibility, design systems, and frontend performance.
  • Understanding of security and privacy best practices, including PII handling and audit logging.


Benefits & Perks
  • Health, dental & vision coverage - Comprehensive plans, fully covered for you (and subsidized for dependents)
  • Lunch & dinner, on us - Daily meals catered in-office, because good food fuels good work
  • Flexible PTO - Take the time you need to recharge, no rigid accrual counting
  • Equity in an early-stage company - Real ownership in what you're building, not just a paycheck
  • Regular team happy hours & events - Built into the culture, not an afterthought
  • Top-tier equipment - The laptop and setup you need to do your best work

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