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Software Engineer - Core Financial Platform at Basic Capital

We are looking for a Software Engineer to join our Core Financial Platform team in SoHo, NYC, to architect the trading and money-movement systems that power our vision. Working alongside veterans from Stripe, Uber, and Goldman Sachs, you will own the design of high-reliability, event-driven systems that bring transparency to retirement. Backed by Lux Capital and Forerunner Ventures, this is a rare opportunity to tackle deep technical challenges while building a product that addresses wealth inequality and provides market ownership for every American.

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Basic Capital

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Location

New York, United States

Compensation

$180k-$275k + Equity

Company

Basic Capital

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Role overview

As a Software Engineer on the Core Financial Platform team, you will design and build the high-reliability systems responsible for moving money at scale. You will architect event-driven workflows, design reconciliation logic, and own the infrastructure for trading and fund management, ensuring the transparency and reliability that modern retirement investing requires.

Basic Capital is a venture-backed financial technology company focused on retirement and investing products. Its platform provides 401(k) plan services including recordkeeping, advisory, and administration, and it also offers IRA and financing-based investing tools designed to help individuals access productive assets and compound wealth on a larger base.

What you will do

  • Architect and build core trading, financing, and fund management systems that orchestrate and reconcile complex flows of funds with high reliability.
  • Design and implement event-driven backend systems and asynchronous workflows using tools like Kotlin, Temporal, and modern cloud infrastructure.
  • Participate in high-level architecture discussions and code reviews, maintaining complete ownership of mission-critical transaction systems from design to production.

Who this is a fit for

  • Has 3+ years of experience building distributed, high-reliability backend systems and event-driven architectures using languages like Kotlin, Go, or Rust.
  • Demonstrates strong expertise in relational databases like PostgreSQL/MySQL and cloud infrastructure (AWS/GCP), with a focus on correctness and system reliability.
  • Thrives in a fast-paced, high-agency environment and is excited to work in-office in SoHo to solve complex social and financial problems.

Why this role is remarkable

  • Work directly with an elite team of senior engineers who have built mission-critical financial systems at scale for companies like Stripe, Square, and Uber.
  • Tackle deep technical challenges by rebuilding retirement infrastructure from the ground up, replacing decades-old legacy systems with modern, transparent, event-driven architectures.
  • Join a high-impact, $25M Series A startup backed by top-tier investors like Lux Capital, Forerunner Ventures, and Henry Kravis in a high-performance SoHo office.

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