Senior Software Engineer – Contact Centre Platform (CCaaS)

Vonage Applications:

Our Applications business unit focuses on delivering a suite of advanced communication tools designed to enhance customer engagement. From cloud contact centers to feature-rich unified communications solutions, our Applications team is dedicated to providing businesses with the tools they need to streamline operations and improve customer experiences.

Why this role matters:

Every second a contact centre agent is on a call, our platform is working behind the scenes. As a Senior Software Engineer on our CCaaS Technology Team, you will own and evolve the critical services that agents depend on — in a global, multi-tenant, real-time environment serving thousands of concurrent users.

This is not a role where you ship features and move on. You will shape the architecture, set the engineering standard, and have a genuine influence on how the team works and what it builds next. If you want to lead from the front, mentor others, and make a real difference to the product — this role was made for you.

Your key responsibilities:

Domain Leadership:

• Lead multiple initiatives end-to-end — from early refinement through to production deployment — owning reliability, performance, and long-term maintainability
• Contribute to architectural decisions that shape the future of the platform, representing the team in cross-team design discussions and architecture forums
• Drive technical excellence: set the standard for code quality, test coverage, and engineering best practices across the team

Business Leadership:

• Actively care about the product and its users — contributing to improvement beyond code implementation
• Collaborate cross-functionally with Product, UX, and other engineering teams, representing the team's technical perspective and influencing delivery outcomes
• Be a key player in the team's strategy, with significant influence on project outcomes and the team's ability to move fast and deliver value

People Leadership:

• Mentor and coach less experienced engineers through pairing, code reviews, and knowledge-sharing sessions
• Contribute to the team's engineering culture — participating in working groups, hackathons, and community initiatives across the wider VCC engineering organization

What you'll bring

Required:

• 5+ years of relevant software development experience, with a track record of leading projects and delivering complex solutions independently
• Strong proficiency in TypeScript/JavaScript and modern front-end frameworks
• Solid experience with C# and back-end service development on .NET Core
• Familiarity with cloud technologies (AWS) and distributed systems, including messaging mechanisms (Kafka / SNS / SQS)
• Understanding of data management and caching layers (Redis, Aurora / MySQL, Parameter Store)
• Excellent communication skills — written, verbal, and listening — to collaborate effectively with both technical and non-technical stakeholders
• A degree in Computer Science, Electrical Engineering, or a related field — or equivalent practical experience

Experience we consider a plus:

• Hands-on experience with end-to-end and UI test automation frameworks (e.g. Playwright)
• Experience with CI/CD pipelines and infrastructure-as-code tools (e.g. Terraform, GitHub Actions)
• Ability to responsibly utilize AI tools to enhance development productivity and quality

How you’ll benefit:

• Legal & General Pension
• Life Assurance
• Income Protection
• Private Medical & Dental Insurance
• Eligible for Free Eye Tests
• Shopping Discounts
• Optum Employee Assistance Programme
• Unlimited Discretionary Time Off
• Three Paid Volunteer Days a Year
• Additional benefits and perks will be shared and discussed with you by the recruiter during the interview process.

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