Engineer - Fullstack
- Location
- New York City, NY
- Job type
- Full-time
- Level
- Mid-level
- Experience
- 3+ years
- Listed
- 22 days ago
Skills & highlights for this role
- React
- TypeScript
- Python
- PostgreSQL
- LLM agentic systems
Also useful
- Next.js
- FastAPI
- Anthropic Claude API
- vector databases
- Supabase
About the role
We're looking for a Software Engineer with deep expertise in full-stack development to help develop the next-generation AI platform for market due diligence. You'll own complete features end-to-end - from AI-powered backend systems to polished frontend interfaces that investment professionals in Private Equity, Hedge Funds, Private Credit, and Corporate M&A use to make billion-dollar decisions.
What you will do
- Build new product features and experiences end-to-end, everything from database models to API endpoints, and integrating them with UI components for our Web App and AI Voice Agent application
- Design and build new AI-powered modules from scratch (e.g., market sizing, competitive analysis) that become core capabilities of our research platform
- Build and own product foundations across the stack (AI agent orchestration, voice AI pipelines, interactive data visualization, app and API performance, intelligent automations)
- Apply learnings from each project into the product, so we're 1% better everyday (Law of Compounding is real. After all, we are founded by investment professionals).
Qualifications
- 3+ years of professional full-stack development experience
- Strong proficiency in React/TypeScript and Python
- Experience building agentic systems with LLM platforms (Anthropic, OpenAI, or similar)
- Deep hands-on experience with LLMs in production - building reliable agentic systems, not just API calls
- Experience with PostgreSQL and SQL database design
- Experience with modern frontend architecture, state management, and API design
- Track record of shipping user-facing products end-to-end
Bonus
- Experience with Next.js and FastAPI
- Experience with Anthropic Claude API and Agent SDK
- Familiarity with agent orchestration frameworks
- Background building interfaces for AI/ML products or data-intensive applications
- Familiarity with vector databases and semantic search
- Experience with Supabase
- Previous startup experience
Who you are
- Love owning complete features rather than just frontend or backend pieces
- Can context-switch effectively between system design and UI polish
- Take pride in your code and want to work with others who do the same
- Act with Urgency so we can empower you with Agency
- Pay high attention to detail and are curious about how great products work
- Feel discomfort when things don't move as fast as you feel they should
About DiligenceSquared
DiligenceSquared is the AI-native consulting firm. We deliver investment-grade market research and commercial due diligence, powered by AI agents and led by experienced consultants. Our founding team brings deep experience from Blackstone and BCG, and we're backed by Y Combinator and Relentless. Our clients include 5 of the 10 largest private equity firms in the world and represent more than $3T in combined AUM.
From DiligenceSquared's careers page, first listed on Rolev.ai on October 17, 2026. Rolev.ai is not the employer.
How Rolev.ai helps with this application
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Common questions
Where is the Engineer - Fullstack job at DiligenceSquared located?
This Engineer - Fullstack position at DiligenceSquared is located in New York City, NY. Always check DiligenceSquared's application page for specific state eligibility or relocation policies.
What qualifications are required for Engineer - Fullstack at DiligenceSquared?
For the Engineer - Fullstack role, DiligenceSquared highlights 3+ years of relevant experience; experience with React, TypeScript, Python, PostgreSQL, LLM agentic systems. Rolev.ai can score your existing resume against these requirements and show any skill gaps before you apply.
How do I apply for the Engineer - Fullstack position at DiligenceSquared?
This listing links directly to DiligenceSquared's Ashby application page. You can apply directly on DiligenceSquared's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Ashby application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.