Senior Backend Engineer

Obsidian Search • United State
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AI Summary

Join a fast-growing, early-stage company building AI for finance. As a senior backend engineer, you'll lead product initiatives, work closely with customers, and own technical decisions. This role requires strong Python skills, a product mindset, and experience with distributed systems.

Key Highlights
Lead major product initiatives
Work closely with customers to turn business problems into technical solutions
Own technical decisions and trade-offs
Key Responsibilities
Take new features from idea to production
Build scalable backend services and APIs
Work directly with customers and finance teams
Improve reliability, observability, and developer experience
Technical Skills Required
Python FastAPI Distributed-systems patterns
Benefits & Perks
Salary: $150K–$250K
Competitive equity
Hybrid work arrangement (2 days/week in the office)
Visa sponsorship available
Nice to Have
Experience with data tooling like DuckDB and dbt
TypeScript or front-of-stack ability
Background in fintech, finance, or other data-heavy products

Job Description


About the company


An early-stage, founder-led company building the AI layer for the modern finance function. It pulls revenue and customer data into one reliable view, so CFOs at private-equity-backed businesses can make decisions from numbers they trust. It's bootstrapped, revenue is doubling quarter on quarter, and it's on a clear path to profitability. The leadership team is small and has built and scaled major SaaS companies before, and AI runs through both the product and the way the team works.


About the role


A hands-on backend role with ownership from day one. You'll report to the Head of Engineering on a small, fast-moving team and lead major product initiatives, including the systems behind the company's AI financial analysis engine.


How you think and whether you care about the product matter more here than your CV. You'll work close to customers, make the technical calls yourself, and ship features that go straight into production. The draw is autonomy, hard technical problems, and meaningful equity in a company on a clear path to profitability.


Role responsibilities


  • Take new features from idea to production, work out what customers need, then design, build and ship it end to end.
  • Build scalable backend services and APIs in Python and FastAPI, applying distributed-systems patterns where they fit.
  • Work directly with customers and finance teams to turn business problems into technical solutions, and own the trade-offs that go with it.
  • Use AI tooling across your workflow to ship faster, it's part of how this team builds day to day.
  • Improve reliability, observability and developer experience as the platform and team grow.


Role requirements


Essential

  • 2+ years as a backend-leaning software engineer shipping production code.
  • Strong Python, experience with modern API frameworks like FastAPI, and a good grasp of distributed-systems patterns.
  • A product mindset, you care about solving the customer's problem, not just closing the ticket.
  • Comfortable owning work end to end and moving quickly in an early-stage setup.
  • Happy working directly with non-technical people and making pragmatic calls.


Desirable

  • Experience with data tooling like DuckDB and dbt.
  • Some TypeScript or front-of-stack ability.
  • A background in fintech, finance or other data-heavy products.


The details


  • Salary: $150K–$250K, plus competitive equity
  • Location & model: Greater Boston area, hybrid (two days a week in the office)
  • Type: Full-time
  • Visas: Sponsorship available for selected visa types (e.g. O-1, TN) and open to transfers; H-1B sponsorship isn't offered.


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