Senior Full-Stack (React + Node.js / Python) Engineer for Cybersecurity Platform

We are looking for a Senior Full-Stack Engineer with a strong focus on frontend development (React + TypeScript) and solid backend experience to join a modern, large-scale cybersecurity platform.

The project is a well-funded, post–Series B cybersecurity product with a strong engineering-driven culture. The team is building and evolving a complex, production-grade platform used by enterprise clients. This is a long-term role with high ownership, end-to-end feature responsibility, and close collaboration with product and engineering teams in a fast-paced startup environment.

Benefits:

• Long-term, full-time engagement
• High level of ownership and real impact on a complex cybersecurity product
• Modern tech stack and challenging engineering problems
• Close collaboration with product and engineering leadership
• Opportunity to influence architecture and technical decisions
• Fast-growing project with potential to scale the team further

Requirements:

• 8+ years of professional software development experience
• Strong expertise in React + TypeScript with clear frontend ownership experience
• Solid backend experience with Node.js (TypeScript, NestJS) and Python
• Experience building and maintaining APIs and distributed backend services
• Strong experience with PostgreSQL, including schema design and migrations
• Hands-on experience with Kafka and Redis
• Prior startup experience (mandatory)
• Experience owning features end-to-end (design → implementation → production)
• Strong understanding of scalable systems and software architecture
• Ability to mentor mid-level engineers and perform thoughtful code reviews

Responsibilities:

• Own and deliver full-stack features end-to-end, with a strong focus on frontend development using React (TypeScript)
• Design, build, and maintain clean, reusable UI components aligned with the design system
• Develop and maintain backend services and APIs using Node.js and Python
• Design and implement PostgreSQL database schemas, migrations, and data models
• Work with messaging and caching systems such as Kafka and Redis
• Collaborate closely with Product Managers, Team Leads, and engineers in an Agile environment
• Ensure production-grade quality through testing, monitoring, debugging, and performance optimization
• Participate in system design and architectural discussions, evaluating trade-offs between scalability, performance, cost, and maintainability
• Review code and mentor mid-level engineers, helping raise overall engineering standards
• Take ownership of incidents, bugs, and operational issues in live environments