Software Engineer - Backend

Luminary
New York, San Francisco
Workplace: HybridFull timeUSD 170,000 - 225,000 annuallyFunction: Software EngineeringExperience: 4+ yearsSkills: ["Correctness","Product-mindedness","Communication","Edge-case thinking"]

Build and own Luminary’s modeling engine for transfer tax computation and downstream waterfall/distribution modeling. You’ll model complex estate and trust domains flexibly, make correctness verifiable with support from JDs and CPAs, and provide deterministic tools so agent workflows don’t have to do math. The backend stack includes Go, Postgres, Temporal, and GraphQL, with monitoring via Honeycomb, Braintrust, and PostHog.

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FursaFursa
Luminary
Luminary
3 days ago

Software Engineer - Backend

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Source: Company careers pageValidated by: Fursa AI
Last checked: 4 hours agoStatus: Live

Job Summary

Build and own Luminary’s modeling engine for transfer tax computation and downstream waterfall/distribution modeling. You’ll model complex estate and trust domains flexibly, make correctness verifiable with support from JDs and CPAs, and provide deterministic tools so agent workflows don’t have to do math. The backend stack includes Go, Postgres, Temporal, and GraphQL, with monitoring via Honeycomb, Braintrust, and PostHog.
Location: New York, San Francisco
Workplace: Hybrid
Employment Type: Full time
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

  • •Own the modeling engine for transfer tax computation, including waterfall and distribution modeling and consolidation under one engine.
  • •Model the estate and trust domain flexibly and thoughtfully as data modeling requirements evolve.
  • •Validate correctness against how practitioners compute things by partnering with JDs and CPAs.
  • •Expose a deterministic modeling layer (and hypothetical modeling) through tools to support agent workflows without doing math.
  • •Support ongoing computation/projection scenarios that reflect complex real-world conditions and edge cases.

Pay and Benefits

Salary: USD 170,000 - 225,000 annually
Equity and Bonus:Equity
Perks:Health InsurancePaid Leave401kParental Leave

Key Requirements

  • •4+ years of software engineering experience at companies with strong engineering practices.
  • •Prefer domain complexity to infrastructure complexity, with an interest in accurately modeling real-world systems.
  • •Be rigorous about correctness, thinking through edge cases and shipping only verifiable logic.
  • •Be product-minded—understand why calculations matter and who depends on them, shaping requirements.
  • •Backend experience with Go, Postgres, Temporal, and GraphQL (Day to day tools).
Experience:4+ years
Skills:CorrectnessProduct-mindednessCommunicationEdge-case thinking
Tech Stack:GoPostgresTemporalGraphQLHoneycombBraintrustPostHogCI

Eligibility

Work Authorization:Authorization required. Sponsorship not provided.

Company Brief

Luminary
Luminary provides an AI-powered platform that digitizes trust and estate documents, creates structured records, visualizations, and what-if analyses to help wealth managers, family offices, and professional advisors streamline estate planning. ([withluminary.com](https://www.withluminary.com/))
Industry: Wealth Management
Company Size: Small (11 to 50 employees)
Growth: Early Stage Startup
Funding: Seed
Headquarters: New York, United States. ([linkedin.com](https://www.linkedin.com/company/withluminary))
Founded: 2022
WebsiteLinkedIn