Senior Backend Developer

Summary

Join a foundational team building a next-generation Enterprise VPN platform. As a skilled Backend Developer, you will design and develop secure, scalable APIs and backend services for user access, session management, and policy enforcement. The role involves working with Node.js, TypeScript, and NestJS to build RESTful APIs and collaborate on system design and performance improvements. You will write and maintain tests, participate in code reviews, and support CI/CD workflows. This is a high-impact role influencing product direction and company growth, offering competitive pay, a fully remote work environment, and self-managed time off.

Requirements

• 6+ years of backend development experience with Node.js and TypeScript
• Proficiency with NestJS, and ecosystem i.e. RxJS, Jest, Axios, Helmet, Pino, and Supertest)
• Deep understanding of RESTful API design and familiarity with gRPC, Protocol Buffers, and GraphQL
• Solid grasp of networking fundamentals (TCP/IP, UDP, DNS, TLS/SSL, firewalls); hands-on experience with Linux networking (i.e. nftables, iptables, conntrack)
• Strong expertise in authentication and authorization protocols (i.e. OAuth 2.0, OpenID Connect, JWT, and SAML)
• Experience building multi-tenant, high-availability, and secure client-server applications
• Hands-on experience with CI/CD pipelines (ArgoCD preferably), Docker, and Testcontainers
• Familiarity with both relational and non-relational databases (PostgreSQL, Redis) and message brokers (i.e. RabbitMQ, MQTT, SNS/SQS)
• Strong experience with cloud platforms (preferably AWS: EC2, ECS, Lambda, IAM)
• Proven ability to write and review clean, secure, and maintainable code within a monorepo architecture
• Excellent communication skills and ability to work independently in a remote team

Responsibilities

• Design and maintain secure, scalable, and observable backend services using Node.js, TypeScript, and NestJS
• Build and evolve RESTful APIs with robust authentication, authorization, and access control
• Collaborate with the architecture team to improve system design and performance
• Write and maintain unit, integration, and end-to-end tests
• Participate in code reviews, design discussions, and agile ceremonies
• Support CI/CD workflows and contribute to deployment pipelines

Preferred Qualifications

• Background in VPN technologies, access management, or cybersecurity
• Experience with policy engines (e.g., OPA, Cedar)
• Familiarity with Cloudflare (e.g., Workers, DNS, WAF)
• Exposure to SaaS infrastructure and Kubernetes orchestration
• Experience scaling high-traffic, production-grade systems
• Prior experience in a startup environment
• BSc/MSc in Computer Science, Engineering, or related field

Benefits

• Competitive pay rates
• Fully remote work environments
• Self-managed time off