Post a Job
Post a role →
HOME Software Engineering & Dev Senior Backend Engineer (Poland)
Source.Ai VERIFIED EMPLOYER

Senior Backend Engineer (Poland).

Remote Software Engineering & Dev Full-Time
♡ Save to shortlist
??% CV Match
Sign in to upload a CV and see how you match

Senior Backend Engineer (Poland): our view in 3 lines...

  • The Role:This role is for an experienced engineer who builds and maintains backend APIs for large-scale proxy infrastructure and high-volume request systems.
  • The Person:The person will build and maintain high-performance backend APIs, own the design and delivery of services handling billions of requests daily, and investigate and resolve production issues across distributed systems.
  • Requirements:The ideal candidate has strong experience in at least one OOP language, proven experience designing and scaling APIs, familiarity with distributed systems and async architectures, and a willingness to understand deep networking concepts such as BGP, CIDR, and ASNs.

About the role

Webshare is an affordable and powerful self-serve proxy infrastructure. Built for prosumers, solopreneurs, and growing businesses, it delivers enterprise-grade capabilities without the premium price tag or the sales calls. 
That same principle shapes the team: lean, flat, and async by default, where clarity and follow-through matter more than hierarchy.
Webshare is an enterprise-grade proxy platform delivering fast, self-service access to over 80 million global IPs across 195 countries. Built for extreme reliability with 99.97% network uptime, it enables tens of thousands of businesses worldwide to run large-scale web scraping, market research, and automated data collection through dev-friendly APIs.

In this role, you’ll:

  • 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.

    • Your skills & experience:

     
  • 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, you're eager to learn and excited to grow your backend engineering skills, including working with 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).

    • Nice to have:

  • Experience with Python.
  • Experience with very large datasets.
  • Experience with proxies or other networking-related technologies.
  • Experience with golang.

    • Salary & Benefits:

  • Gross salary: 24 000 - 33 400 PLN/month gross + quarterly KPI-based performance bonus. Keep in mind that we are open to discussing a different salary based on your skills and experience.
  • Growth & Learning: 40+ internal learning options, external conferences, mentorship, and year-round knowledge-sharing.
  • Health & Well-being: Private health insurance.
  • Celebration & Community: Team events, an overseas workation and plenty of ways to mark milestones together.
    • Webshare is part of Source, a data ecosystem for a world built on intelligence. One of a growing network of independent technology companies connected by shared standards, expertise, and a belief in responsible access to web data.
     
    Up for the challenge? Let’s talk!
    Published October 20, 2026
    Location Poland, Poland
    Category Software Engineering & Dev  
    Job Type Full-Time  

    Read our Cookie Policy