# Full Stack Engineer

**Company:** [Mem0](https://hotfix.jobs/companies/mem0)
**Location:** San Francisco, CA
**Role:** Fullstack Engineering
**Salary:** $150k – $180k/yr
**Skills:** Next.js, React, Python, Postgres, Redis, GraphQL, Rest, Celery, TypeScript, Docker, Kubernetes, AWS, GCP, Tailwind, WebSockets
**Posted:** 2026-01-18

> Builds end-to-end features for Mem0's memory platform using Next.js/React for UI and Python for backend, optimizing for scale, speed, and reliability. Collaborates with design, research, and customers while owning production operations and code quality.

## Job Description

## What You'll Do
- Ship end-to-end features: Design APIs, build UIs, write backend logic, own data models, and deploy to production.
- Build for scale & speed: Optimize latency, caching, and query patterns; keep pages snappy and backends reliable.
- Own quality: Write tests, enforce typing/linting, review PRs, and maintain clean, well-documented code.
- Collaborate deeply: Work with Design for great UX, with Research to integrate new memory capabilities, and with customers to refine requirements.
- Operate what you build: Add observability, set alerts, debug prod issues, and drive continuous improvements.
- Lead with product sense: Prioritize ruthlessly, make tradeoffs explicit, and iterate based on data and feedback.
- Go beyond your lane: Unblock teams, learn new tools on the fly, and do what it takes to deliver.

## Minimum Qualifications
- Proven experience shipping full-stack web applications at scale using **Next.js/React** and **Python**.
- Strong **Python** skills and familiarity with modern web stacks (**REST/GraphQL**, **Postgres**, **Redis**, **Celery/queues**).
- Solid front-end chops: component architecture, state management, forms, accessibility, **SSR/ISR**.
- Track record of owning features E2E: from design docs to rollout and post-launch iteration.
- Code quality mindset: testing (unit/integration), type safety (**TS/pyright/mypy**), **CI/CD**, and thoughtful review culture.
- Excellent communication and teamwork; comfortable working cross-functionally with design, research, and GTM.
- Comfortable operating production systems (logs, metrics, tracing) and meeting low-latency requirements.

## Nice to Have
- Experience integrating LLM/memory features (**RAG**, embeddings, **vector DBs**) into products.
- Familiarity with **vLLM**, model serving, or lightweight ML infra integrations.
- Real-time features (**WebSockets/Server Actions/streaming**), file uploads, and background jobs at scale.
- Infra awareness: **Docker**, **IaC**, basic **K8s/Vercel/AWS/GCP** deployment patterns and cost thinking.
- Product/UI polish: **Tailwind/Design Systems**, charts, empty states, error UX, and performance budgets.
- Security & privacy basics (PII handling, audit/logging).

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**Apply:** https://hotfix.jobs/jobs/2e00b550-3656-4b9f-b3f3-4d907c563483
**Canonical:** https://hotfix.jobs/jobs/2e00b550-3656-4b9f-b3f3-4d907c563483