About NewtonX
NewtonX is a B2B insights company trusted by the world's most innovative companies to make high-stakes decisions with confidence. We combine a verified network of business professionals with AI-powered research tools to deliver research intelligence faster, more precise, and more defensible than traditional methods.
Our clients include Google, Microsoft, TikTok, DoorDash, Stripe, and Coinbase. Our research has been cited by Fortune, Forbes, TechCrunch, Adweek, and the Wall Street Journal.
NewtonX has raised $47M from investors including Two Sigma Ventures, Third Prime, XFund, and Citi Ventures.
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 For6+ 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 workflowsA 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.
State management (Redux, Zustand, Thunk)
Responsive design with Material-UI, Bootstrap, or TailwindCloud + infra experience: GCP, Kubernetes, Docker, Terraform
Messaging/queueing systems (Pub/Sub, Kafka, RabbitMQ, SQS)SOLID design principles
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
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).
NewtonX is proud to be an equal opportunity workplace. We do not discriminate based upon race, religion, color, national origin, sex, sexual orientation, gender identity/expression, age, status as a protected veteran, status as an individual with a disability, or any other applicable legally protected characteristics.
Skills Required
- 6+ years full-stack engineering experience
- Strong React skills (modern React, hooks, Context API, reusable component libraries)
- Python and Django expertise including Django Rest Framework
- Experience designing and consuming REST APIs
- JavaScript (ES6+), TypeScript, HTML, CSS/SCSS
- Experience building scalable systems (race conditions, idempotency, backpressure)
- Strong SQL knowledge with relational databases (Postgres)
- Unit and integration testing mindset (Jest, React Testing Library, pytest, unittest)
- Comfortable with Git and Agile workflows
- Ability to identify and mitigate application security vulnerabilities (OWASP Top 10)
- State management (Redux, Zustand, Thunk)
- Responsive design with Material-UI, Bootstrap, or Tailwind
- Cloud and infrastructure experience (GCP, Kubernetes, Docker, Terraform)
- Messaging/queueing systems (Pub/Sub, Kafka, RabbitMQ, SQS)
- Familiarity with SOLID design principles
What We Do
NewtonX matches the world’s toughest questions with the only minds who know the answers. We find the right subject matter expertise from an open network of 1.1 billion professionals. To do this, we use the most sophisticated search engine in the research industry– the NewtonX Graph. It identifies the exact audience for our clients’ business questions. We ensure every professional is 100% verified, so you can ground your work in true expertise and make strides with confidence. As the world’s leading B2B research company, we field large-scale quantitative surveys, facilitate qualitative interviews, engage in long-term consultations, and create customized research plans. NewtonX partners with the world’s top consultancies, marketers, and technology companies. Together with our clients, we’re ushering in a new standard of truth in B2B research.
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