Full Stack Engineer

Job Description
Full-time, onsite opportunity for a Senior or Staff Full Stack Engineer based in Central Square, Cambridge, MA. Join a venture-backed AI startup building an AI-native expert network that helps consulting firms, investors, and enterprises access expert insights with unprecedented speed and precision. Leveraging generative AI, intelligent search, and AI-powered interviewing technology, the platform is transforming how organizations discover expertise, conduct research, and make critical business decisions. This role offers the opportunity to build the core systems powering the next generation of AI-driven knowledge services.

This is a foundational engineering role working directly alongside the CTO to build and scale core platform capabilities. You'll have significant influence over architecture, engineering standards, hiring, and product direction while contributing hands-on across the full technology stack. Ideal for an experienced startup engineer who enjoys ownership, fast-paced environments, and building AI-first products from the ground up.

Required Skills & Experience

7+ years of professional full-stack software engineering experience
Strong experience building products in startup or high-growth environments
Expertise with Python, Django, and/or FastAPI
Strong proficiency with TypeScript and React
Experience with PostgreSQL and modern database design
Experience building applications on AWS
Experience with Docker and cloud-native development practices
Experience integrating and working with LLM APIs such as GPT, Claude, or similar models
Strong system design, architecture, and debugging skills
Excellent communication and cross-functional collaboration abilities

Desired Skills & Experience

Experience building AI-native or Generative AI products
Experience with hybrid search, retrieval systems, or knowledge platforms
Experience mentoring engineers and influencing engineering culture
Experience making architecture decisions in growing organizations
Familiarity with modern ML workflows and AI infrastructure
Experience working closely with product and design teams

What You Will Be Doing

Tech Breakdown

40% Backend Development (Python, APIs, Infrastructure)
30% Frontend Development (React, TypeScript)
20% Architecture & System Design
10% AI/LLM Integrations & Innovation

Daily Responsibilities

80% Hands On
10% Technical Leadership & Mentorship
10% Team Collaboration

Design, build, and maintain scalable software systems across the full stack
Contribute to architecture decisions that support long-term scalability and performance
Build and enhance AI-powered product capabilities leveraging LLMs and emerging technologies
Partner with product, design, and machine learning teams to deliver customer-facing features
Debug and resolve complex production issues across the platform
Help establish engineering standards, best practices, and development processes
Provide guidance and mentorship to fellow engineers when needed
Evaluate and implement new technologies that improve product capabilities
Influence hiring decisions and help shape the engineering organization
Contribute as a founding team member in building a high-performance engineering culture

The Offer

Competitive salary plus meaningful equity

You will receive the following benefits:

Medical Insurance
Dental Benefits
Vision Benefits
Paid Time Off (PTO)
Equity Participation
Flexible Work Arrangements
Professional Development Opportunities

Applicants must be currently authorized to work in the United States on a full-time basis. This position does not provide sponsorship for new work visas but may support transfers of existing work authorization where applicable.