Senior Software Engineer

Chicago full timeOn Site

senior

$200k–$250k

H1B: yes

Optimal The Senior Software Engineer at Optimal Market Technologies designs and builds next-generation options trading platform components and maintains existing systems. The role emphasizes design judgment, verification, review, and use of AI coding agents.

Responsibilities

Your Primary Responsibilities:
Design and Build:
Own a defined part of our next-generation trading platform, from design through release.
Design for failure: durability, failover and recovery.
Keep business logic deterministic and testable in isolation, separate from the code that sends messages.
Verify and Review:
Create discrete tasks with executable acceptance criteria from business specifications.
Build checks that are independent of the implementation.
Share code review with the team’s existing reviewers.
AI Tools and productivity:
We use Claude Code; fluency with it or similar is expected.
Work with the team to develop shared agent practice.

Qualification

Basic working use of Python and SQLClear communication

Required

5+ years of professional software engineering, including designing systems where failure has serious financial or regulatory consequences.
Strong programming and critical code review in statically typed, compiled languages, including C++.
Production software shipped using AI coding agents, with a method you can explain.
Experience designing tests that check correctness independently of the implementation.
Able to turn a business specification into discrete tasks with clear acceptance criteria.
Basic working use of Python and SQL; deeper experience is a plus.
Clear communication: you say what you have and have not verified.
Experience with trading systems or financial markets is a plus.

Company

Optimal

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Source: greenhouse

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