Staff Software Engineer in Katowice

Staff Software Engineer# Staff Software Engineer Vonage On-site Poland Software Engineering Posted Oct 27, 2026Join Vonage and help us innovate cloud communications for businesses worldwide!

About Vonage

Vonage is the emerging leader in the $100B+ cloud communications platform (CPaa S) market.

Customers like Airbnb, Viber, Whats App, Snapchat, and many others depend on our APIs and SDKs to connect with their customers all over the world.

As businesses continue to shift to a real-time, customer-centric communications model, we are experiencing a time of impressive growth.

• Why This Role Matters
• The RNE (Registration, Numbers and Enablement) group within
• Vonage's
• Foundation
• Engineering department works across four core product domains: Registration, Numbers, Number
• Intelligence, and Know Your Customer (KYC). As a Staff
• Engineer, you will be a technical anchor for the team, shaping the architecture of our cloud-native platform and influencing engineering culture across the group.

What You Will Do

• Provide technical leadership and vision for the design and development of highly concurrent, distributed backend systems;
• Drive and own significant architectural decisions, ensuring scalability, reliability and maintainability across the platform;
• Lead performance optimisation initiatives and resolve the most complex system-level challenges;
• Set the standard for testing practices, including Unit, Integration and Smoke tests, enabling fully automated promotion of code to production;
• Define, evolve and enforce coding standards and engineering best practices across the team;
• Act as a technical mentor and leader, supporting the growth of engineers at all levels;
• Collaborate closely with product and engineering leadership to align technical strategy with business goals;
• Provide out-of-hours support as part of an on-call rota.
• What You Will Bring

Essential

• Extensive programming experience in Go (Golang) or deep expertise in JVM technologies (Java/Spring Boot) with a strong commitment to adopting Go;
• Extensive, proven experience developing and maintaining enterprise-grade systems at scale;
• Deep expertise in highly concurrent, distributed architectures and systems;
• Extensive experience leading and owning architectural decisions at team and cross-team level;
• Prior experience as a Team Lead or Tech Lead, with a track record of mentoring and growing engineering talent;
• Experience with containerised applications and cloud-native infrastructure;
• Expert-level performance profiling and optimisation skills;
• Deep experience with relational and non-relational databases (e. g. Postgre SQL, Redis);
• Exceptional communication and influencing skills, with the ability to align technical and non-technical stakeholders.

Nice to Have

• Deep hands-on experience with AWS (SQS, SNS, Dynamo DB), Kafka, Kubernetes or Terraform;
• Experience driving Continuous Delivery practices in cloud environments;
• General understanding of the telecommunications industry.

How you’ll benefit

• Medical Insurance (Allianz)
• Life Insurance (Uniqa)
• Glasses Reimbursement
• Kafeteria (My Benefit)
• Discretionary Time Off (DTO)
• Volunteer Time (VTO)
• Ericsson Care Line
• #LI-YB1

There’s no perfect candidate.

You don't need all the preferred qualifications to make a valuable impact on our team.

Our employees and customers come from diverse backgrounds, so if you're passionate about what you could achieve at Vonage, we'd love to hear from you.

To learn how we process your personal data during the recruitment process, please refer to our Privacy Notice.

Who we are

Vonage is a global cloud communications leader.

And your talent will further help brands - such as Airbnb, Viber, Whats App, and Snapchat - accelerate their digital transformation through our fully programmable-based unified communications, contact center solutions, and communications APIs.

Ready to innovate?

Then join us today.

Note: The purpose of this profile is to provide a general summary of essential responsibilities for the position and is not meant as an exhaustive list.

Assignments may differ for individuals within the same role based on business conditions, departmental need or geographic location.