Jobs · Engineering · New York

Senior Staff Software Engineer

NewtonX · New York, NY · 2 wk ago
HybridEngineering$200k–$270k/yrFull-time

About the role

We are looking for a Senior Staff Software Engineer with deep expertise in React on the frontend and Python/Django on the backend. You’ll help build and scale high-performing applications used by global teams, with a strong focus on delivering an exceptional user experience. As a Senior Staff Engineer, you will own organization-wide technical initiatives.

What We’re Looking For

  • 6+ years full-stack engineering experience
  • Strong React skills — modern React (hooks, Context API), reusable component libraries, building robust web apps across multiple projects
  • Strong Python/Django expertise — Django + Django Rest Framework, designing and consuming REST APIs
  • Solid experience in JavaScript (ES6+), TypeScript, HTML, CSS/SCSS
  • Experience building scalable systems (race conditions, idempotency, backpressure)
  • Strong SQL knowledge with relational databases (postgres)
  • Unit + integration testing mindset (Jest/React Testing Library, pytest/unittest)
  • Comfortable with Git and Agile workflows
  • A strong, demonstrable commitment to developing secure software, including the ability to identify, defend against, and mitigate common application security vulnerabilities, especially those related to the OWASP Top 10
  • Bonus Skills (Nice-to-Haves): State management (Redux, Zustand, Thunk), Responsive design with Material-UI, Bootstrap, or Tailwind, Cloud + infra experience: GCP, Kubernetes, Docker, Terraform, Messaging/queueing systems (Pub/Sub, Kafka, RabbitMQ, SQS), SOLID design principles

What You’ll Do

  • Lead development of React-based UIs that are performant, scalable, and user-friendly
  • Build and maintain Python/Django REST APIs and backend services
  • Collaborate on architecture, design decisions, and code reviews
  • Maintain and improve test coverage across the stack
  • Debug, resolve technical debt, and improve code quality
  • Contribute to technology/tooling choices and best practices
  • Mentor teammates and help shape engineering processes

What We Offer

  • Excellent medical, dental, and vision insurance
  • 401k match with immediate vesting
  • Generous Paid time off: vacation, holidays, sick, and parental leave
  • A diverse, collaborative, and positive culture where we invest in and celebrate each other’s success
  • Flexible work environment where we work hard but have fun (happy hours, team projects, and retreats)

Compensation Range

$200K - $270K

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