Suggested rewrite: Led a cross-functional initiative that improved [business outcome] by [measurable result], demonstrating experience relevant to this role...
Staff Software Engineer
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- Remote from
- Poland
- Salary
- Undisclosed
- Department
- Software Engineering
- Employment
- Full Time
- Experience
- Senior
- Published
- Apply before
- 26 Nov 2026
- Listing views
- 15
- Application actions
- 1
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The role, at a glance.
Vonage is seeking a Staff Software Engineer to provide technical leadership for cloud-native backend systems in its Registration, Numbers and Enablement group. The role owns major architectural decisions for highly concurrent distributed services, with a focus on scalability, reliability, performance, and automated delivery. The engineer will mentor colleagues, establish engineering standards, and align technical strategy with product and engineering leaders. Core technical requirements include Go or Java/Spring Boot, containerized infrastructure, databases such as PostgreSQL and Redis, and strong system profiling skills. The role also includes participation in an out-of-hours on-call rotation.
Role DNA
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Pace & Pressure
4/5Autonomy Level
5/5Communication Load
5/5Salary analysis
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Core skills
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Sample interview questions
I would start by defining consistency, latency, availability, and auditability requirements for each workflow. I would use idempotent APIs, durable event-driven processing, carefully scoped transactional boundaries, and explicit concurrency controls to prevent duplicate allocations. I would also build observability around allocation states, retries, reconciliation, and regional failure scenarios.
I would document the problem, constraints, options, operational risks, and expected outcomes in a concise design proposal. After involving affected engineers, product partners, and platform stakeholders early, I would use data from prototypes or production telemetry to make trade-offs visible. Once aligned, I would deliver in stages with success metrics and a rollback plan.
I first confirm user impact and establish a baseline using service-level metrics such as latency, error rate, saturation, and throughput. I then correlate traces, logs, database metrics, and CPU, memory, garbage collection, lock, and goroutine or thread profiles to isolate the bottleneck. I validate a focused fix under realistic load and monitor the result after release.
I use a layered strategy: fast unit tests for business logic, integration tests for infrastructure boundaries, contract tests for service interactions, and targeted smoke tests after deployment. Tests should be reliable, deterministic, and mapped to meaningful risks rather than used only to increase coverage. I pair this with progressive delivery, monitoring, and fast rollback capabilities.
I set clear architectural principles and decision-making boundaries, then encourage engineers to own designs and present their reasoning. I provide timely review focused on trade-offs, operational concerns, and long-term maintainability instead of prescribing every implementation detail. Regular design discussions and written decision records help scale knowledge while keeping ownership distributed.
About this role.
Join Vonage and help us innovate cloud communications for businesses worldwide!
About Vonage
Vonage is the emerging leader in the $100B+ cloud communications platform (CPaaS) market. Customers like Airbnb, Viber, WhatsApp, 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. PostgreSQL, 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, DynamoDB), 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.
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Who we are:
Vonage is a global cloud communications leader. And your talent will further help brands – such as Airbnb, Viber, WhatsApp, 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.
Annual salary information is not provided for this position. Explore salary ranges for similar roles in our Salary Directory ›
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