NewtonX

Senior Staff Software Engineer

NewtonX • $130K — $180K *
US-AnywhereRemote in New York, NY
Information Technology
5 - 7 years of experience
Reposted 2 months ago
Job Overview by Ladders

Qualifications

  • 6+ years full-stack engineering experience
  • Strong expertise in modern React (including hooks and Context API)
  • Proficient in Python/Django and RESTful API design
  • Solid understanding of JavaScript (ES6+), TypeScript, HTML, and CSS/SCSS
  • Experience in building scalable systems
  • Strong SQL knowledge with PostgreSQL
  • Testing mindset with experience in Jest, React Testing Library, and pytest

Responsibilities

  • Lead development of performant and user-friendly React-based UIs
  • Build and maintain robust Python/Django REST APIs
  • Collaborate on architecture and design decisions
  • Ensure high test coverage and improve code quality
  • Debug and resolve technical debt effectively
  • Contribute to technology choices and best practices
  • Mentor team members and shape engineering processes

Benefits

  • Comprehensive medical, dental, and vision insurance
  • 401k matching with immediate vesting
  • Generous paid time off including vacation, holidays, and parental leave
  • Supportive and diverse work culture that celebrates success
  • Flexible work environment with social activities
Full Job Description
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).

About NewtonX

NewtonX is an AI-powered expert search engine that connects companies with the world's leading experts in any industry. It provides a platform that enables businesses to find, vet, and hire experts for their research, consulting, and advisory needs. The platform uses advanced natural language processing and machine learning algorithms to identify and rank the most relevant experts based on their expertise, experience, and reputation. NewtonX aims to help companies to make better decisions, faster, by providing them with the insights and knowledge they need to succeed.
Learn more about NewtonX
Size
50 employees
Industry
Information Technology
Founded
2016
* Ladders Estimates

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