Full-Stack Engineer - Help Us Build the Future of AI Team Development

Pinnacle is a rapidly-growing Seed-stage AI startup revolutionizing how we work. Our flagship product, Pascal, is an AI performance and career coach that brings world-class executive coaching to every employee, anytime, anywhere. Imagine a 24/7 companion who intimately understands your aspirations and team context, and who offers proactive insights to help you uncover blind spots and excel day-to-day.

If you’ve ever had questions about how to navigate a difficult colleague, struggled through a difficult conversation, wished for more feedback, or wondered why work is so hard, Pinnacle is for you! Join us, and help everyone—from top-performing ICs to frontline managers to C-suite executives—unlock their full potential.

We’re trusted by top startups and unicorns to ensure their teams are performing at the peak of their game. Our Stanford GSB-founded team already has decades of experience in AI & executive coaching, and we’re backed by eLab Ventures, Incisive VC, the Sarah Smith Fund, 57blocks, Jolly VC, Embedding VC, People Tech Partners, StartX, Alchemist Accelerator, and top angels.

As a Full-Stack Engineer, you'll be at the intersection of AI and scalable software architecture, building the foundation that powers personalized career coaching at scale. You'll work in a fast-paced, fully remote environment where your code ships quickly and your impact is immediately visible. As an early team member at our venture-backed startup, you'll have the opportunity to shape our core infrastructure, work directly with cutting-edge AI technology, and make decisions that will impact thousands of users. These will be just some of your key responsibilities:

• Develop React features for enhanced user experience
• Implement robust backend infrastructure for our AI-powered career coaching chatbot
• Integrate and optimize third-party system connections
• Create and optimize API endpoints for seamless frontend and AI model interactions
• Build performant data processing systems using MongoDB
• Manage Docker deployments across cloud environments
• Ensure high performance, reliability, and low-latency responses in AI-driven interactions
• Collaborate with cross-functional teams including ML researchers, frontend developers, and product managers

You should apply if you meet the following qualifications:

• Required:
  • 3-5 years of professional full-stack development experience 
  • Strong Python programming skills
  • Proficient in building scalable applications with Node.js
  • Experience with RESTful API design and implementation
  • Strong front-end web development using React

• Preferred:
  • Advanced React expertise:
    • State management with Zustand
    • Data fetching using TanStack Query
    • Testing implementation with Vitest and Cypress
    • Build system optimization with Vite
  • Experience with in MongoDB database design and optimization and Firebase authentication for web applications
  • Experience with containerization (Docker) and cloud deployment strategies (GCP, Heroku) 
  • Understanding of prompt engineering techniques and agent orchestration
  • Message queue system implementation (RabbitMQ/Redis)
  • Experience with microservices architecture
  • Experience integrating HRIS, communication data (Zoom, Slack, etc.) or similar data pipelines

And if you are someone who has:

• A deep passion for the problem space we’re operating in. 
• Worked on small teams (and preferably at small companies or startups) where flexibility > process
• Worked iteratively through product requirements, coalescing the undefined to make it defined, working to make the unknowns known, and adjusting to changes discovered along the way
• Learned that you never have all the answers but know how to ask questions, research, and experiment to find them
• Learned that asking for help from the team when you’re stuck is better than struggling through it alone

Note: You are free to work remotely (even internationally), but we cannot sponsor an H1-B visa if you need one.