MERN Full Stack Engineer

Procedure is hiring for WorkHero.

Across the U.S., thousands of small HVAC businesses are drowning in admin. WorkHero pairs seasoned office managers with AI workflows to free up their time, unlock growth, and modernize the trades. We handle everything that touches the back office of a small HVAC operation: billing, rebates, permits, warranties, marketing, and more. Our customers save dozens of hours every week, allowing them to focus on growing their business.

We are building at the intersection of Human and AI automation, and that's where you come in.

How you will help us achieve it

As an Applied AI Engineer, you will collaborate with the company founders, product team, and office managers to develop agentic workflows for many of their daily processes.

You will ideate, design, implement, and maintain the software side of the product. You will design the UX, develop the front end interfaces, build backend routes and design database models.

The bulk of this role is interacting with office managers to understand their workflows and then creating and managing AI agents & workflows to make them more efficient.

In your day to day, you will:

• Partner with our frontline staff to understand their work so you can automate it with AI and save them time
• Live on the cutting edge of Human & AI interactions, keeping up to date with the latest patterns and how they apply to WorkHero and our workflows
• Contribute to exceptional code quality and performance of the code base
• Mentor young engineer(s) to be great at their craft, as our team grows

Key Details

• You can work remotely from anywhere with an overlap of at least four hours with the product team (6 pm to 10 pm IST)
• This role involves participating in calls with US-based stakeholders
• The compensation comes with a salary and an equity component

You'll thrive if you

• Care about your craft and the mission of the software you are developing
• Are enterprising and can figure out how to convert workflows/playbooks to AI agents
• Work with cutting-edge AI tools and APIs
• Don't just complete tickets that are assigned to you; you think deeply about the product and how you can make it great, then put that into action
• Enjoy developing 0-1 software products iteratively
• Are proficient in the Typescript ecosystem, including monorepos.
• Are skilled in React and Express (Koa is a plus) or similar tech
• Are pragmatic and understand trade-offs in software engineering

Requirements

• 4+ years of experience in building software products
• Have created applications using AI and LLMs. Can understand when to prompt, use RAG, create agents or fine-tune an LLM
• Have solid experience with the MERN stack
• Ability to debug and optimize complex systems
• Excellent communication and collaboration skills

Bonus points if you have

• Experience in mentoring junior team members. Better if they had gone to replace you in your team, allowing you to take up a more meaningful role
• Familiarity with our tech stack (React, Koa, Mongo, AWS, React Native)
• A good understanding of UX best practices for SaaS based interfaces & AI
• Built apps using React Native
• A deep understanding of infrastructure and can optimize for cost
• Set up evaluation frameworks for agentic workflows
• Contributed to open-source projects

Your First Six Months

• You will be working on creating AI Agents/Workflows based on the playbooks for some of the crucial workflows of HVAC office managers
• You will work on building the frontend, APIs and apply AI knowledge to add features to the office manager and admin portal, as well as the mobile app
• You will be using Vercel AI SDK to create abstracted AI agents and workflows with the capability of falling back to different providers
• You will demo the agentic workflows to US-based stakeholders—small HVAC business owners, product team and office managers
• You will monitor and manage the AI Workflows, ensuring quality and accuracy, improving them over time

About engineering at WorkHero

We value:

• High ownership and fast iteration
• Deep understanding our tools and systems
• Continuous improvement, both technically and interpersonal

Our technology stack:

• Full Stack TypeScript (React, React Native, KoaJS Backend, CRXJS Browser Extension)
• NX Monorepo with shared typing & libraries
• Infrastructure:
• AWS (ECS, Hosted RMQ)
• MongoDB Atlas
• Firebase & GCP services
• AI Tooling (Anthropic, OpenAI, Gemini, Deepgram)

Our team

• The Company is funded by Workshop Ventures Partners, a US-based venture studio focused on building great companies in Climate Tech
• The team consists of founding members from Harvard Business School and the Workshop Ventures team — Kyler, Furman, Chad, Jason, and Ulhas

Interview Process:

• Screening: Review of your open source contributions and past projects.
• First Round of Technical Evaluation: Assessing your problem-solving and AI integration skills.
• Technical Evaluation + Cultural Fit: Understanding your alignment with our team.