Engineer - Fullstack
Company websitediligencesquared.com (DiligenceSquared, opens in new tab)
Base salary $160K to $200K
Employer-published annual base salary, USD. Advertised base range in New York City, NY
You apply on the employer's own site. Six Figure Work does not handle applications.
- LocationNew York City, NY
- WorkplaceOn-site
- Status at last checkSource accepting applications when checked
- Last checked (2 h ago) · observed since
About this job
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.
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.
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
Source: DiligenceSquared on Ashby · View original posting (opens in new tab)
This listingEngineer - Fullstack$160K to $200K
Engineer - Frontend$160K to $200K
Business Lead$160K to $200K
Engineer - Backend$160K to $200K
Talent & People Lead$140K to $190K
Marketing Lead$110K to $150K
Chart as a table
| Role | Published base |
|---|---|
| Engineer - Fullstack (this listing) | $160K - $200K |
| Engineer - Frontend | $160K - $200K |
| Business Lead | $160K - $200K |
| Engineer - Backend | $160K - $200K |
| Talent & People Lead | $140K - $190K |
| Marketing Lead | $110K - $150K |
Observed changes
- First observed on the employer's board
- Began meeting the published-salary criteria
- Observed since
- Employer-stated posting date
- 2025-12-10
Where this pay comes from
Location as the employer wrote it: New York City
USD 160,000 – 200,000 · 1 YEAR · Salary
- Method
- Structured pay field published by the employer
- Checked
- Rule set
- us-base-v2
The employer's job board publishes this pay as a dedicated data field. We read the field directly; no interpretation was needed.
What we verified
- The pay figures come from the employer's own listing, quoted exactly above.
- The pay is an annual base salary in US dollars with a minimum of at least $100,000.
- The role was publicly listed on the employer's job board when last checked.
We do not verify what the employer will actually offer, whether the employer is still recruiting for the role, or anything beyond what the employer published. Full methodology.