Senior Backend Engineer – Proxy & Infra (Remote)

Massive; United States; Remote; USD 140,000 - 200,000; Full time

Job summary

Massive is seeking a senior backend engineer to design, build, and operate proxy-focused backend systems at scale. This fully remote role emphasizes distributed architectures, high-volume traffic, and resilient services.

You’ll collaborate across teams to align infrastructure with product goals and champion best practices in code quality, testing, and operational health. You should be comfortable working asynchronously, contributing to architecture decisions, and mentoring engineers.

Qualifications

• Senior-level experience in backend engineering.
• Proficiency in one or more backend languages.
• Solid understanding of networking fundamentals and proxy-related protocols.
• Experience designing distributed, fault-tolerant, scalable systems.
• Comfort working remotely and asynchronously.

Responsibilities

• Design, develop, and maintain backend services tied to proxy infrastructure.
• Build and scale distributed systems that handle high-volume network traffic reliably.
• Contribute to architectural decisions for infrastructure components and services.
• Ensure stability, performance, and operational health of proxy-related systems.
• Participate in code reviews, testing practices, and engineering documentation.

Skills

Backend engineering

Programming languages

Networking fundamentals

Distributed systems

Asynchronous work

Tools

CI/CD

Containerization

Job description

Massive is seeking a senior backend engineer to design, build, and operate proxy-focused backend systems at scale. This fully remote role emphasizes distributed architectures, high-volume traffic, and resilient services.

You’ll collaborate across teams to align infrastructure with product goals and champion best practices in code quality, testing, and operational health. You should be comfortable working asynchronously, contributing to architecture decisions, and mentoring engineers.