Senior Backend Engineer - Remote-First (Poland)

Source.ai; Polska; Remote; PLN 268,000 - 373,000; Full time

Benefits offered by this job

Private health insurance

Learning options

Team events

Job summary

Webshare is a fast, self-serve proxy platform used by prosumers and growing businesses worldwide. We’re hiring a backend engineer to design and build high-performance APIs that power our proxy infrastructure.

You’ll join a lean, autonomous, async-first team with a global footprint, tackle production issues, optimize performance, and push cost-efficiency while expanding your backend skills, including Python.

Qualifications

• Strong experience in at least one OOP language.
• Ability to work with industry standard AI tools (LLMs).
• Programming-language-agnostic mindset; eager to grow backend skills including Python.
• Comfortable in infrastructure-heavy environments.
• Proven API design and scalability experience.
• Familiarity with distributed systems and async architectures.
• Willingness to understand deep networking concepts (BGP, CIDR, ASNs).
• Fluent English (international team).
• Can work with a remote team 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 given situation.
• Operate and improve containerized infrastructure.
• Continuously improve system performance, observability, and cost-efficiency.

Skills

OOP language

AI tools (LLMs)

Python

Distributed systems

Networking concepts

English fluency

Remote collaboration

Tools

Python

Go

LLMs

Job description

Webshare is a fast, self-serve proxy platform used by prosumers and growing businesses worldwide. We’re hiring a backend engineer to design and build high-performance APIs that power our proxy infrastructure.

You’ll join a lean, autonomous, async-first team with a global footprint, tackle production issues, optimize performance, and push cost-efficiency while expanding your backend skills, including Python.