Founding Full Stack Software Engineer (MERN)
Boock.ai
AnywhereSENIOR
RemoteFounding TeamMERNFull StackScalableSecurityAI
Job Description
As a Founding Full Stack Engineer (MERN), you’ll own end-to-end delivery of major features across frontend and backend.
Responsibilities
- Own end-to-end delivery of major features across frontend and backend.
- Work alongside our CTO and product leads to ship scalable, secure, and fast B2B and B2C applications.
Qualifications
- 3–6 years of hands-on experience building modern cloud-based SaaS solutions in production
- Build and maintain core product modules using React, Node.js, Next.js, TypeScript, Express, and MongoDB
- Solid API design skills (auth, pagination, idempotency, error models)
- Hands-on with AWS (serverless preferred) and cloud-native patterns
- Optimize performance, security, and scalability for a global user base
- Experience with distributed systems basics: queues, retries, rate limits, observability
- Integrate AI-powered features (e.g., recommendations, chat, automations)
Nice to have
- Strong background in building AI-first web applications, with hands-on experience integrating LLMs (e.g., Bedrock, OpenAI, Anthropic) : tool calling, structured outputs, evals, safety guardrails
- Experience with DynamoDB (single-table or well-structured multi-table) and data modeling
- Experience with serverless architectures and working knowledge of vector DBs and RAG.
- Agentic workflow experience: planners/executors, long-running tasks, event-driven orchestration
- Experience with media pipelines (TTS, video/audio processing, manifests, CDN delivery)
Benefits
- Scope: Be part of the founding team and build the solution from ground up.
- Fully Remote and work from home with flexible work hours.
- AI-first: Design for intelligent workflows, not static screens.
- Voice: Be part of the founding team - your design DNA will define the product.
- Impact: Help transform a $600B industry.
- Equity & Ownership: Competitive compensation and early-stage upside.