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← NinjaTrader

Sr. Software Engineer II, Backend (Rust)

NinjaTrader
Location
Chicago or Remote*
Posted
1 month ago
Department
Technology
Salary
$140,000.00 - $190,000.00
What they actually want (must-haves)
  • 6+ years of professional software development experience, including substantial production Rust
  • Strong command of Rust in production: ownership and lifetimes, error modeling, trait design, and the async ecosystem (tokio), plus serde and a SQL layer such as sqlx or diesel
  • Demonstrated ability to write highly testable Rust, including pure functions at decision boundaries, table-driven tests, fixture-based integration testing, and strict contract tests
  • Proven experience designing HTTP and event-driven service integrations, including versioning and backward compatibility
  • Experience handling sensitive data under real constraints (encryption, secret management, least-privilege access, and audit requirements) in containerized cloud environments such as Docker and Kubernetes
  • Demonstrated use of AI coding agents (Codex, Cursor, Claude Code) as a standard part of your engineering workflow, with the judgment to review and validate AI-assisted code before it ships
Nice to have
  • Experience with identity verification, KYC/AML, CIP, or fraud and risk decisioning systems
  • Experience in fintech, trading, brokerage, or crypto, particularly in a regulated financial services environment
  • Experience in a large Rust monorepo with shared crates, workspace tooling, and multi-team code ownership
  • Familiarity with policy-driven flow engines (YAML or JSON defined workflows), schema-driven contracts such as gRPC or protobuf, and feature flagging platforms such as Statsig
  • Passion for futures, crypto, derivatives and trading technologies
What the job really is

As a Sr. Software Engineer II at NinjaTrader, you will be responsible for developing and maintaining backend services in Rust that support account creation, identity verification, and KYC/CIP decisioning. You will work on integrations with various providers, ensure data handling correctness for sensitive information, and design scalable service architectures. Additionally, you will mentor other engineers and participate in cross-functional design reviews, significantly impacting the onboarding process for new customers.

Benefits
  • Salary range of $140,000.00 - $190,000.00 USD
  • Annual target bonus of 12%
  • 401K plan with company match up to 3.5%
  • Annual paid time off allowance of 18 days plus seven paid holidays
  • 20 additional flex remote days annually
  • 5 Company Wide Office-Optional weeks tied to major holidays
Things to weigh
  • Remote flexibility is limited to exceptional candidates in specific states
  • Hybrid work schedule for Chicago-based employees requires in-office attendance Tuesday through Thursday
  • No salary listed for remote positions outside of the specified states
Job score4.6/5
Benefits5/5
Freshness4/5
Career value4/5
Role clarity5/5
Pay transparency5/5

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