Senior Software Engineer

Two Sigma; Gaithersburg (MD); Hybrid; USD 124,000 - 163,000; Full time

Job summary

Two Sigma is seeking a Senior Software Engineer to own end-to-end development of facilitation and modern tooling. In this contract role, you’ll collaborate with on-site and remote teams from Gaithersburg, MD, applying a strong Webpack foundation and modern tech like GraphQL, Node.js, Angular, and Docker.

You’ll coordinate releases, enhance test automation, and document architecture and APIs, delivering real impact from week one while balancing multiple priorities and delivering high-quality code

Qualifications

• Clear thinking under pressure in fast-paced deadlines.
• Comfort working in a ruthlessly-focused environment.
• Strong foundation in Webpack with 5+ years of refinement.
• A portfolio that speaks louder than a resume.
• Meticulous attention to detail across every deliverable.
• Sharp written and verbal communication, tested under scrutiny.

Responsibilities

• Coordinate releases with stakeholders across Gaithersburg, MD and remote teams.
• Enhance test automation frameworks to increase release confidence.
• Document technical decisions, architecture, and APIs for the broader org.
• Wire up Docker feature flags so Two Sigma can test on Gaithersburg traffic risk-free.
• Partner with QA to define test coverage and catch regressions early.
• Own the full lifecycle of technology systems from prototype to production.
• Tune GraphQL queries until the MD database stops timing out under load.
• Translate Angular metrics into the one chart leadership checks each morning.

Skills

Webpack

GraphQL

Node.js

Angular

Docker

APIs

Job description

Build the tools that thousands of developers depend on as a Senior Software Engineer working with Facilitation and modern tooling. With 5 years of experience under your belt, you'll step into a contract position paying $124,000 - $163,000 where ownership and momentum matter.

Key Responsibilities

• Coordinate releases with stakeholders across Gaithersburg, MD and remote teams
• Enhance test automation frameworks to increase release confidence
• Document technical decisions, architecture, and APIs for the broader org
• Wire up Docker feature flags so Two Sigma can test on Gaithersburg traffic risk-free
• Partner with QA to define test coverage and catch regressions early
• Own the full lifecycle of technology systems from prototype to production
• Tune GraphQL queries until the MD database stops timing out under load
• Translate Angular metrics into the one chart Two Sigma leadership checks each morning

What You'll Bring

• Clear thinking under the kind of pressure Gaithersburg, MD deadlines bring
• Comfort working in a fast-paced, ruthlessly-focused environment
• A solid foundation in Webpack, refined over 5+ years
• A portfolio that speaks louder than any line on your resume
• Meticulous attention to detail across every deliverable
• Sharp written and verbal communication, tested under scrutiny
• A steady hand when three priorities all claim to be number one

Three things define Two Sigma: a Gaithersburg address, a deeply-curious culture, and a near-religious devotion to Facilitation. New hires ship something real in week one, because we'd rather you learn by doing.

The number is $124,000 - $163,000; the rest is mentorship, health coverage, paid growth time, and a contract arrangement that respects your evenings.

Whether GraphQL or Node.js is your strong suit, this Senior Software Engineer seat has room for both.