Senior Backend Engineer - Scalable APIs for Global Proxy

Source; United States; Remote; USD 75,000 - 90,000; Full time

Benefits offered by this job

Private health insurance

Gym allowance

Wellness app

Team events

Overseas workation

KPI bonus

Barista coffee

Job summary

Webshare, part of Source, is seeking a backend engineer to build high-performance APIs powering a global proxy platform. You’ll own services handling billions of requests, collaborate in an autonomous remote-friendly team, and push observability and cost-efficiency improvements.

We value strong OOP experience, API design skills, and comfort with distributed systems, async architectures, and networking basics.

Qualifications

• Strong experience in at least one OOP language.
• Ability to work with industry standard AI tools (LLMs) while balancing code quality and speed, but never compromising on reliability and architecture.
• Ability to work in a programming language agnostic environment; eager to learn and grow backend skills, including Python.
• Comfortable working in an infrastructure heavy environment.
• Proven experience designing and scaling APIs.
• Familiarity with distributed systems and async architectures.
• Willingness to understand deep networking concepts (BGP, CIDR, ASNs).
• Fluent English (international team).
• Can handle working with a remote team (we're worldwide).

Responsibilities

• Build and maintain high-performance backend APIs that power Webshare’s proxy infrastructure.
• Own the design and delivery of services that handle billions of requests daily.
• Collaborate in a highly autonomous team to scope, plan, and execute work with minimal meetings.
• Investigate and resolve production issues across distributed systems.
• Balance speed and quality, by identifying which trade-off is better for a particular situation.
• Operate and improve our containerized infrastructure.
• Continuously improve system performance, observability, and cost-efficiency.

Skills

OOP language experience

AI tools for LLMs

Python proficiency

API design

Distributed systems

Async architectures

Networking concepts (BGP, CIDR, ASNs)

English fluency

Remote collaboration

Tools

Go (Golang)

Docker

Kubernetes

APIs (REST/GraphQL)

Job description

Webshare, part of Source, is seeking a backend engineer to build high-performance APIs powering a global proxy platform. You’ll own services handling billions of requests, collaborate in an autonomous remote-friendly team, and push observability and cost-efficiency improvements.

We value strong OOP experience, API design skills, and comfort with distributed systems, async architectures, and networking basics.