Possible locations
  • Bialystok
  • Bydgoszcz
  • Cracow
  • Czestochowa
  • Gdansk
  • Gliwice
  • Katowice
  • Lodz
  • Lublin
  • Pila
  • Poznan
  • Rzeszow
  • Szczecin
  • Torun
  • Warsaw
  • Wroclaw
  • Remote work
Technologies & tools

Must have:

  • GoLang
  • REST/HTTP

Nice-to-have:

  • Kubernetes
  • JVM
  • AWS

At Sii, we create an environment where experienced developers can truly thrive. We offer a long-term partnership, a culture of innovation, and a focus on professional growth, ensuring that every team member has the tools and support they need to excel. With a dynamic, collaborative approach, we provide the perfect setting for you to tackle exciting challenges while working on impactful projects.

We’re currently looking for a talented Go Developer to join an exciting project—100% remote. You’ll be part of an ambitious team building a next-gen cloud communications platform that handles massive volumes of real-time data. You’ll work on high-performance, distributed systems that power solutions used by global leaders like Airbnb, Viber, and WhatsApp. This project will give you the chance to work on both greenfield and existing systems, leveraging the latest technologies and solving complex problems.

Join Sii as a Senior Go Developer and work on impactful projects with cutting-edge technologies. We’re eager to welcome you to our team — apply now and take the next step in your career!

Your role

  • Developing and maintaining highly concurrent, distributed systems using Golang, ensuring performance and reliability across multiple services
  • Optimizing performance and diagnosing issues, identifying bottlenecks, and ensuring scalability under increased loads
  • Designing, developing, and testing new features, ensuring high availability and robustness while collaborating with cross-functional teams
  • Contributing to the release process, including documentation, testing, and providing post-release support as part of an on-call rotation
  • Defining coding standards and development processes, driving improvements in software quality, and supporting continuous delivery within the remote team

Your skills
  • Minimum 4 years of experience with Golang, specializing in developing enterprise-scale systems
  • Strong background in designing and maintaining highly concurrent, distributed systems, ensuring scalability and performance
  • Experience building and optimizing REST/HTTP-based services for high performance, along with expertise in containerized applications and deployment
  • Familiarity with cloud technologies like AWS and tools such as Kubernetes - nice to have
  • Fluency in English, with the ability to effectively communicate within a global, remote team

Job no. 241108-5QQ8D

Why Sii

Great Place to Work since 2015

it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas

Fascinating projects

prestigious brands from around the world, long-term contracts and preferred partner status for many clients

Project suited to you

Do you want to change your career path? Is your project coming to an end? We’ll find you a new one! We have an app for this – Job Changer

We share the profit with Workers

Last year we allocated PLN 2,1BN to this benefit

PLN 500 000 per year for your ideas

with this amount, we support the passions and voluntary actions of our workers

7 500 experts and many development opportunities

Tech Communities, workshops, a training platform, and a technology blog – you choose

Employment stability

revenue of EUR 480M, no debts, since 2006 on the market

Great, comfortable offices

perfect place to work, integrate, have fun together, and celebrate successes

Open-minded and available management team

quick decision-making, we’re all on a first-name basis

True values

these are not empty words – we’re guided by them every day

Fantastic atmosphere

created by all Sii Power People

Attractive benefits package

private healthcare, benefits cafeteria platform, car discounts and more

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