NewtonX · 11 hours ago
Senior Staff Software Engineer (Remote)
United States
Full-time
Remote
Senior Level, Lead/Staff
$200K/yr - $270K/yr
6+ years expNewtonX is the leading AI-powered B2B research company that helps businesses make informed decisions by connecting them with verified subject matter experts. They are seeking a Senior Staff Engineer with deep expertise in React and Python/Django to lead projects and collaborate on technical initiatives, focusing on building and scaling high-performing applications.
B2BInformation ServicesInformation TechnologyManagement ConsultingMarket Research
Responsibilities
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
Qualification
Required
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
Preferred
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
Benefits
Excellent medical, dental, and vision insurance.
401k match with immediate vesting.
Generous Paid time off: vacation, holidays, sick, and parental leave.
Company
NewtonX
The world’s leading businesses find their advantage with NewtonX. Make your next bold move with 100% verified B2B insights.
51-200 employees
H1B Sponsorship
NewtonX has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
2023 (3)
2022 (5)
2021 (4)
2020 (5)
Funding
Current Stage
Growth StageTotal Funding
$47MKey Investors
MarbruckTwo Sigma VenturesThird Prime
2021-12-08Series B· $32M
2019-06-18Series A· $12M
2017-08-31Seed· $3M
Leadership Team
Germain Chastel
Co-Founder and CEO
Sascha Eder
CEO and Co-Founder
Recent News
Social Media Today
2025-11-06
Company data provided by crunchbase