Senior Staff Software Engineer

🕒 March 18

🏢🏡 New York City – Hybrid

💵 $200k - $270k / year

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

🦅 H1B Visa Sponsor

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NewtonX

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2017

🤝 B2B

☁️ SaaS

🤖 Artificial Intelligence

💰 $32M Series B - NewtonX on 2021-12

B2B • SaaS • Artificial Intelligence

NewtonX is a B2B market research and insights company that combines AI-enabled data collection, recruitment of verified expert respondents, and synthetic data augmentation to deliver fast, high-quality market intelligence and analysis. The company provides services across brand & communications, customer research, market opportunity, and product research, and offers a SaaS platform (NewtonX Hub and NewtonX Prime) including AI-moderated interviews and an always-on research analyst (Hub Researcher) to help enterprises and agencies turn complex questions into actionable strategy.

📋 Description

• 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

🎯 Requirements

• 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.

🏖️ Benefits

• 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).