We're looking for an experienced FreeSWITCH Developer / VoIP Software Engineer to design, develop, and maintain the telephony solutions that power Vonage's call processing platform. You'll build real-time voice communication systems that handle millions of calls, developing features like call processing, recording, voicemail, conferencing, and external service integrations. This is a critical role where your work directly impacts business communications for customers worldwide.

What You'll Do

Core Responsibilities

• Build scalable telephony systems — Design and develop distributed, high-volume production telephony applications for our UCaaS platform that handle real-time voice traffic at scale
• Develop custom FreeSWITCH solutions — Create custom modules, dialplan configurations, and ESL (Event Socket Library) integrations for advanced call control and automation
• Deliver advanced telephony features — Implement call recording, voicemail transcription, fax processing, audio streaming, and other mission-critical voice features
• Rapid prototyping to production — Build proof-of-concepts quickly and evolve them into production-ready, maintainable code
• Drive technical innovation — Evaluate emerging telephony technologies and recommend architectural improvements that enhance our platform capabilities
• Mentor and lead — Guide team members on design patterns, best practices, and telephony architecture decisions

Day-to-Day Collaboration

• Participate in the full agile development lifecycle: sprint planning, design reviews, standups, and demos
• Respond promptly to production incidents affecting customers and business operations
• Work independently on end-to-end feature delivery while contributing to broader team goals
• Partner closely with Product Management, QA, and Operations teams to deliver cohesive solutions
• Communicate progress, blockers, and technical decisions clearly with engineering leadership

What You'll Bring

Required Experience & Skills

Telephony & VoIP Expertise (Must-Have)

• 6+ years of software development experience
• 3+ years hands-on experience with telephony platforms: FreeSWITCH, Asterisk, or similar open-source PBX systems
• Deep understanding of:
• SIP (Session Initiation Protocol) and RTP protocols
• VoIP architecture and NAT traversal techniques (STUN, ICE, TURN)
• Audio codecs (G.711, Opus, etc.)
• Dialplan development and call flow design

Programming & Development

• Strong proficiency in Java, C/C++, Python, and SQL
• Experience with CI/CD pipelines and modern development workflows
• Infrastructure as Code practices
• Containerization with Docker and Kubernetes

Cloud & Infrastructure

• Hands-on experience with AWS services: EC2, EKS, Lambda, S3, SNS, SQS, CloudFront
• Linux systems expertise: performance tuning, networking, file systems
• Database experience with:
• Relational: MySQL, PostgreSQL
• NoSQL: Redis, MongoDB

Problem-Solving & Debugging

• Proven troubleshooting skills in complex, distributed production environments
• Systematic debugging approach for real-time communication systems
• Experience analyzing performance bottlenecks and system failures

Nice to Have

• Experience with WebRTC
• Familiarity with Kamailio, OpenSIPS, or other SIP proxies
• Knowledge of PSTN interconnection and carrier integrations
• Previous UCaaS or CPaaS platform experience
• Contributions to open-source telephony projects
• Experience with monitoring and observability tools (Prometheus, Grafana, Datadog)

Why This Role Matters

As a FreeSWITCH Developer at Vonage, you'll work on voice infrastructure that powers critical business communications globally. Your code will directly enable features that millions of users depend on daily, and you'll have the opportunity to shape the architecture of next-generation voice platforms.

Work Style

• Ownership mindset — Take features from concept to production
• Collaborative approach — Work across teams while driving your work independently
• Customer focus — Balance feature velocity with reliability and user experience
• Continuous improvement — Stay current with telephony trends and share knowledge with the team

About the Role:

We're looking for an experienced FreeSWITCH Developer / VoIP Software Engineer to design, develop, and maintain the telephony solutions that power Vonage's call processing platform. You'll build real-time voice communication systems that handle millions of calls, developing features like call processing, recording, voicemail, conferencing, and external service integrations. This is a critical role where your work directly impacts business communications for customers worldwide.

What You'll Do

Core Responsibilities

• Build scalable telephony systems — Design and develop distributed, high-volume production telephony applications for our UCaaS platform that handle real-time voice traffic at scale
• Develop custom FreeSWITCH solutions — Create custom modules, dialplan configurations, and ESL (Event Socket Library) integrations for advanced call control and automation
• Deliver advanced telephony features — Implement call recording, voicemail transcription, fax processing, audio streaming, and other mission-critical voice features
• Rapid prototyping to production — Build proof-of-concepts quickly and evolve them into production-ready, maintainable code
• Drive technical innovation — Evaluate emerging telephony technologies and recommend architectural improvements that enhance our platform capabilities
• Mentor and lead — Guide team members on design patterns, best practices, and telephony architecture decisions

Day-to-Day Collaboration

• Participate in the full agile development lifecycle: sprint planning, design reviews, standups, and demos
• Respond promptly to production incidents affecting customers and business operations
• Work independently on end-to-end feature delivery while contributing to broader team goals
• Partner closely with Product Management, QA, and Operations teams to deliver cohesive solutions
• Communicate progress, blockers, and technical decisions clearly with engineering leadership

What You'll Bring

Required Experience & Skills

Telephony & VoIP Expertise (Must-Have)

• 8+ years of software development experience
• 5+ years hands-on experience with telephony platforms: FreeSWITCH, Asterisk, or similar open-source PBX systems
• Deep understanding of:
• SIP (Session Initiation Protocol) and RTP protocols
• VoIP architecture and NAT traversal techniques (STUN, ICE, TURN)
• Audio codecs (G.711, Opus, etc.)
• Dialplan development and call flow design

Programming & Development

• Strong proficiency in Java, C/C++, Python, and SQL
• Experience with CI/CD pipelines and modern development workflows
• Infrastructure as Code practices
• Containerization with Docker and Kubernetes

Cloud & Infrastructure

• Hands-on experience with AWS services: EC2, EKS, Lambda, S3, SNS, SQS, CloudFront
• Linux systems expertise: performance tuning, networking, file systems
• Database experience with:
• Relational: MySQL, PostgreSQL
• NoSQL: Redis, MongoDB

Problem-Solving & Debugging

• Proven troubleshooting skills in complex, distributed production environments
• Systematic debugging approach for real-time communication systems
• Experience analyzing performance bottlenecks and system failures

Nice to Have

• Experience with WebRTC
• Familiarity with Kamailio, OpenSIPS, or other SIP proxies
• Knowledge of PSTN interconnection and carrier integrations
• Previous UCaaS or CPaaS platform experience
• Contributions to open-source telephony projects
• Experience with monitoring and observability tools (Prometheus, Grafana, Datadog)

Why This Role Matters

As a FreeSWITCH Developer at Vonage, you'll work on voice infrastructure that powers critical business communications globally. Your code will directly enable features that millions of users depend on daily, and you'll have the opportunity to shape the architecture of next-generation voice platforms.

Work Style

• Ownership mindset — Take features from concept to production
• Collaborative approach — Work across teams while driving your work independently
• Customer focus — Balance feature velocity with reliability and user experience
• Continuous improvement — Stay current with telephony trends and share knowledge with the team

#LI-CK1

We are seeking a QA Automation engineer to support Vonage’s Residential platform.  As part of this role, the candidate will learn, automate our front end and backend Business Support Systems (BSS) including billing , product catalog, ordering shipping and more.  The components also support the APIs for all frontend applications including support tools, customer self service, subscribe and online account.

Specific Requirements (Technical Knowledge, Responsibilities, Software, Etc.)

• A minimum of 6+ years of experience in the role of a QA Automation Engineer is required.
• Excellent communication skills (written and oral)
• Linux based systems (RedHat, Docker, etc.) 
• Develop automated tests and test frameworks to enhance software quality.
• Conduct functional and non-functional testing, including performance, security, resiliency, and chaos testing.
• Identify and implement quality processes to enhance engineering efficiency.
• Automate various aspects of the software development lifecycle.
• Strong automation testing expertise for REST and SOAP APIs, with coding proficiency in Python or Java.
• Hands-on experience with performance testing frameworks (e.g., Selenium, Cucumber) and CI/CD tools like Jenkins or GitHub Actions.
• Experience with Apache & WebLogic platforms 
• Understanding of various database architectures (SQL / Oracle, Mongo, etc.)
• Working knowledge of GIT, SVN, JIRA, AWS, Puppet, SOAPUI
• Experience partnering and collaborating with both on and off-shore teams
• Experience working in an agile environment

Additional Skills (would like to have but not required)

• Knowledge of billing platforms
• Familiarity with cloud platforms, particularly AWS, and infrastructure-as-code tools like Terraform and CloudFormation.
• Experience with observability and monitoring tools like Grafana and Kibana.
• Understanding of JMS or other message processing platforms.

#LI-CK1

What you will do:

You'll work on end-to-end projects in a full-stack role, aligned with your skills and career goals. As a part of your job, you will be charged with designing, researching, developing, and testing the functional and non-functional areas. 

We design and implement new projects while constantly making sure we support large scales of data and traffic, backward and upward compatibility, and more.

Requirements

• Min 6+ years of experience in full-stack development using JavaScript and TypeScript
• Strong experience with modern web frameworks, particularly Vue.js and Nest.Js
• Experience with AngularJS or React.js is also acceptable
• Extensive hands-on experience with AWS cloud technologies
• Solid backend development experience using Node.js
• Demonstrated proficiency in designing, developing, and deploying microservices-based applications. Ability to architect and implement scalable, loosely coupled, and maintainable microservices.
• Having experience in implementing CI/CD pipelines for automated testing, building, and deploying applications.
• Ability to lead end-to-end projects, working with other team members across the world
• Deep understanding of system architecture , and distributed systems
• Enjoy working in a fast-paced environment
• Able to work collaboratively within different teams and with differing levels of seniority

What you will bring:

• Work closely with cross-functional teams such as Development, Operations, and Product Management to ensure seamless integration of new features and services with a focus on reliability, scalability, and performance
• Experience with back-end technologies
• Good knowledge and understanding of client-side architecture
• Capable of managing time well and working efficiently and independently
• Ability to collaborate with multi-functional teams
• Excellent communication skills

Nice to Have

• Bachelor's or Master's degree in CS or related field/experience

#LI-CK1

What you will do:

You'll work on end-to-end projects in a full-stack role, aligned with your skills and career goals. As a part of your job, you will be charged with designing, researching, developing, and testing the functional and non-functional areas. 

We design and implement new projects while constantly making sure we support large scales of data and traffic, backward and upward compatibility, and more.

Requirements

• Min 3 years of experience in full-stack development using JavaScript, TypeScript, and Java
• Strong experience with modern web frameworks, particularly Vue.js
• Experience with AngularJS or React.js is also acceptable
• Extensive hands-on experience with AWS cloud technologies
• Solid backend development experience using Node.js
• Demonstrated proficiency in designing, developing, and deploying microservices-based applications. Ability to architect and implement scalable, loosely coupled, and maintainable microservices.
• Having experience in implementing CI/CD pipelines for automated testing, building, and deploying applications.
• Ability to lead end-to-end projects, working with other team members across the world
• Deep understanding of system architecture , and distributed systems
• Enjoy working in a fast-paced environment
• Able to work collaboratively within different teams and with differing levels of seniority

What you will bring:

• Work closely with cross-functional teams such as Development, Operations, and Product Management to ensure seamless integration of new features and services with a focus on reliability, scalability, and performance
• Experience with back-end technologies
• Good knowledge and understanding of client-side architecture
• Capable of managing time well and working efficiently and independently
• Ability to collaborate with multi-functional teams
• Excellent communication skills

Nice to Have

• Bachelor's or Master's degree in CS or related field/experience

#LI-CK1

Why this role matters:

As a Staff Platform/SRE Engineer, you are a key technical leader for our India-based engineering team, acting as a bridge between high-level architectural vision and world-class execution. Working closely with Senior Management and the Global Architecture team, you will help shape Vonage’s engineering culture. You will drive the implementation of our long-term technical roadmap for our Cloud-Native Kubernetes platform, ensuring our global production APIs remain resilient, cost-efficient, and secure. Your mission is to eliminate systemic friction through software engineering, ensuring a seamless experience for hundreds of developers interacting with the cloud.

Your key responsibilities:

• Collaborative Technical Leadership: Work in partnership with the architecture team to scope, size, and execute large-scale initiatives. You serve as a primary technical authority and escalation point for the team in India.
• Predictive Problem Solving: Use deep systems knowledge to foresee architectural bottlenecks. You proactively design solutions for future scale, ensuring the platform stays ahead of business demands.
• Mentorship & Multiplier: Act as a lead mentor for junior and senior engineers. You provide the guidance needed to raise the engineering bar, fostering a culture of technical excellence and self-sufficiency.
• Infrastructure as Code (IaC) Culture: Drive the evolution of our IaC practices using tools like Terraform and Crossplane, moving the organization toward a Kubernetes-native management style.
• Reliability & Systems Debugging: Respond effectively to service failures by diving into AWS/EKS, Linux, and ArgoCD. Lead the team in performing thorough, blame-free Root Cause Analysis (RCA).
• CI/CD Modernization: Support the transition from legacy systems to modern automation. While expertise in GitHub Actions and enterprise-grade workflows is highly valued, your primary goal is ensuring a robust and automated deployment pipeline.

What you'll bring

• Experience: 12+ years of progressive experience in software engineering, systems design, and cloud architecture.
• AWS & Kubernetes Excellence: Expert-level experience managing massive, high-traffic, multi-tenant Kubernetes environments specifically on AWS (EKS).
• Cloud-Native Proficiency: Deep understanding of the AWS ecosystem, including networking, storage, and security layers.
• Observability Architecture: Experience implementing and managing observability stacks using tools like Prometheus, Grafana, VictoriaMetrics, or Thanos.
• FinOps & Efficiency: A proven track record of optimizing cluster topologies to balance performance with cost-efficiency goals.
• Treats AI assisted engineering as a core part of modern software practice, leveraging AI tools to enhance design, coding, testing, troubleshooting, and documentation, while guiding the team in adopting effective patterns and evolving best practices for AI enabled ways of working

What's required for application

• CI/CD Transformation: Experience migrating from Jenkins to GitHub Actions (custom actions, API integration, and self-hosted runners).
• Coding & Automation: Proficiency in Go (preferred) or Python to build integrated bot solutions and automation tools.
• Governance: Experience managing Harbor or Artifactory lifecycles.

How you’ll benefit:

• Attractive Discretionary Time Off
• Private Medical Insurance with optional dependent coverage
• Educational Assistance Reimbursement Program
• Opportunities for reimbursement for conferences, trainings, and other personal development events
• Maternity and Paternity Leave
• Ask recruiter for country specific information

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.

Why this role matters:

We are seeking a Staff Engineer / Staff Architect to provide end-to-end technical leadership across our Jumper AI / Conversational Commerce platform. This role spans backend systems, frontend architecture, cloud infrastructure, and platform design, with responsibility for guiding teams building Journey Builders, event-driven orchestration engines, commerce and payment platforms, and multi-channel messaging systems.

You will operate at the architecture and system design layer, working across multiple teams and domains rather than owning a single feature. The role requires deep technical judgment, strong communication skills, and the ability to balance product velocity with long-term platform health.

Your key responsibilities:

• Define and evolve platform architecture across backend, frontend, and cloud infrastructure.
• Lead architectural design for complex systems, including workflow orchestration engines, Journey Builders, commerce, and messaging platforms.
• Establish architectural principles, patterns, and standards that scale across teams and products.
• Provide technical leadership for distributed, event-driven backend systems with strong reliability guarantees.
• Guide frontend architecture for complex, high-scale products, ensuring performance, consistency, and usability.
• Drive cloud-native design on Google Cloud Platform with a focus on scalability, resilience, and operational excellence.
• Act as a trusted technical advisor, mentoring senior engineers and influencing cross-team technical decisions.

What you'll bring

• 12+ years of experience building and operating large-scale, production-grade software systems.
• Deep expertise in distributed systems, microservices architecture, and event-driven platforms.
• Strong hands-on background in backend system design using Python or Go lang or similar ecosystems.
• Proven experience designing workflow engines, routing systems, or stateful execution platforms.
• Solid understanding of frontend architecture principles and performance considerations for complex UIs.
• Strong cloud architecture experience, preferably on Google Cloud Platform.
• Ability to communicate complex technical concepts clearly and influence decisions across engineering, product, and leadership teams.
• Treats AI assisted engineering as a core part of modern software practice, leveraging AI tools to enhance design, coding, testing, troubleshooting, and documentation, while guiding the team in adopting effective patterns and evolving best practices for AI enabled ways of working.

Experience we consider a plus:

• Prior experience as a Staff Engineer, Principal Engineer, or Platform Architect.
• Experience defining internal platform standards adopted by multiple teams.
• Exposure to SRE practices such as SLIs, SLOs, and error budgets.
• Experience working on revenue-critical, high-traffic, or regulated systems.

How you’ll benefit:

• Attractive Discretionary Time Off
• Private Medical Insurance with optional dependent coverage
• Educational Assistance Reimbursement Program
• Opportunities for reimbursement for conferences, trainings, and other personal development events
• Maternity and Paternity Leave
• Ask recruiter for country specific information

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.

Why this role matters:

We're looking for a skilled Full Stack Engineer to join our expanding Jumper AI / Conversational Commerce platform team. This role requires robust experience in both frontend development (Vue.js / React.js) and backend development (Golang, Gin/Echo/Fiber). You will be instrumental in the design, development, and maintenance of scalable, secure, and high-performing applications that power our conversational commerce platform. This platform is used globally by enterprises to provide personalized, omnichannel experiences to their customers.

This position offers the chance to work across the entire technology stack, from crafting intuitive and dynamic user interfaces to building APIs and backend services deployed on Google Cloud Platform. You will collaborate closely with cross-functional teams, including design, product, data, and DevOps, to deliver impactful, customer-centric solutions.

Your key responsibilities:

• Design and build interactive, responsive frontend applications using Vue.js / React.js, and modern JavaScript.
• Translate UI/UX designs from Figma into high-quality, production-ready frontend code.
• Architect, build, and maintain backend services and REST APIs using Python (FastAPI, Flask, Django).
• Integrate frontend applications with backend APIs and third-party services to deliver seamless user experiences.
• Design and optimize data models, caching strategies, and database queries for performance and scalability.
• Deploy, scale, and operate applications on Google Cloud Platform with a focus on reliability and observability.
• Collaborate closely with Product, Design, QA, and Engineering teams; conduct code reviews and mentor junior engineers.

What you'll bring

• 5 plus years of hands-on full stack development experience in production environments.
• Strong proficiency in Vue.js or React.js, modern JavaScript (ES6+), HTML, and CSS.
• Solid backend engineering experience with Golang,  Gin / Echo / Fiber.
• Experience working with SQL and NoSQL databases such as PostgreSQL, BigQuery, Redis, or Datastore.
• Hands-on experience deploying and operating applications on Google Cloud Platform.
• Understanding of secure coding practices, authentication, and authorization using OAuth2 / JWT.
• Strong collaboration skills and experience working in Agile teams using Jira and Confluence.
• Embed AI assisted engineering into daily practice to accelerate delivery and enhance outcomes
• Proactively adopt emerging AI capabilities to improve workflows and shares best practices with the team

Experience we consider a plus:

• Experience building SaaS, e-commerce, or conversational AI platforms.
• Exposure to CI/CD pipelines using GitHub Actions or GCP Cloud Build.
• Experience optimizing frontend performance, accessibility, and responsiveness across devices.

How you’ll benefit:

• Attractive Discretionary Time Off
• Private Medical Insurance with optional dependent coverage
• Educational Assistance Reimbursement Program
• Opportunities for reimbursement for conferences, trainings, and other personal development events
• Maternity and Paternity Leave
• Ask recruiter for country specific information

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.

About Vonage: Vonage is a global cloud communications business that offers flexible and scalable voice, messaging, video and data capabilities across Unified Communications, Contact Centres and Communications APIs. Our mission is to drive efficiencies and build synergy across engineering, product and customer support to make customer and employees experience outstanding.

By joining Vonage’s Lean Agile Centre of Excellence, you’ll have an opportunity to shape the future of customer engagement by supporting our engineering and product teams to deliver a truly immersive platform experience.

Why this role matters

We are seeking a dynamic and pragmatic Agile Delivery Manager to join our diverse global team. As a Agile Delivery Manager, you will play a crucial role in supporting our Agile transformation. This is an excellent opportunity for someone who is passionate about Agile and eager to take the next step in their career supported by an experienced Agile team.

Vonage is entering an exciting new chapter, focused on consolidating and aligning a business that has grown and diversified through acquisition. This role will be part of the Lean Agile Center of Excellence (LACE) at Vonage. The LACE are implementing Agile at Scale across the business to help align our teams and maximize the value they deliver. This role is a chance to get real experience of driving agile transformation you won’t get from training or certification.

What you will do

As an Technical Delivery Manager at Vonage, you will drive delivery excellence through Agile transformation across the organization. Your primary focus will be enabling high-performing delivery flows and fostering a strong Agile culture within one or more teams. You will also support Release Train Engineers in planning and executing SAFe events.

• Coach and Mentor Agile Teams
  Guide teams in adopting Agile values, principles, and practices. Provide hands-on training and ongoing support to embed Agile ways of working.
  
  
• Promote Data-Driven Improvement
  Leverage metrics to help teams understand performance trends and encourage a culture of continuous improvement.
  
  
• Enable Effective Team Collaboration
  Encourage open communication and active engagement both within and across teams to strengthen collaboration.
  
  
• Remove Delivery Impediments
  Identify blockers that impact team performance, and work collaboratively to resolve them swiftly.
  
  
• Facilitate Stakeholder Alignment
  Ensure clear, consistent communication between teams and stakeholders to maintain alignment on goals, priorities, and progress.

What you will bring

• The ideal candidate must be committed to genuine Agile principles, ensuring that Scrum practices are truly effective and not just followed superficially. We are not looking for a "fluffy" Agile Delivery Manager who runs "Zombie Scrum." They should actively engage teams in meaningful Agile practices that drive real value and continuous improvement.
• A positive, pragmatic mindset is essential. You’re someone who can share real examples of outcome-driven delivery, creative problem solving, and resilience in the face of setbacks.
• Due to the international nature of the team and the business, experience working in a multicultural setting would be beneficial.

What is required for application

• Previous experience working as an Technical Delivery Manager /Agile Delivery Manager
• Practical experience with SAFe
• Strong hands-on experience with Jira (essential)
• Familiarity with Confluence
• Proven coaching and facilitation skills, with examples of workshops, training sessions, or 1:1s you’ve run

What is in it for you

• Attractive Discretionary Time Off
• Private Medical Insurance with optional dependent coverage
• Educational Assistance Reimbursement Program
• Opportunities for reimbursement for conferences, trainings, and other personal development events
• Maternity and Paternity Leave
• Ask recruiter for country specific information
  
  #LI-NN1
  
  #LI-AM1

Why this role matters:

We are looking for a skilled Software Development Engineer in Test (SDET) to join our engineering team. You will be responsible for designing, building, and maintaining automated test frameworks and SDLC, with focus on Playwright-based test automation across UI and APIs for the 3th Party Integration.

This role combines strong programming skills with a quality-first mindset, ensuring our applications are reliable, scalable, and production-ready.

Your key responsibilities:

• Collaborate closely with developers, product managers, and QA to ensure quality across the SDLC
• Build and maintain test automation for REST APIs and third-party integrations (e.g., CRM systems)
• Design, develop, and maintain automated test frameworks using Playwright
• Implement end-to-end (E2E), integration, and API tests
• Integrate automated tests into CI/CD pipelines (Jenkins, GitHub Actions)
• Contribute to shift-left testing practices and quality engineering initiatives
• Use AI-assisted tools (e.g., GitHub Copilot) to accelerate test development
• Support performance and reliability testing where applicable

What you'll bring

Required:

• Hands-on experience as an SDET / Automation Engineer (mid-level)
• Strong experience with Playwright for UI test automation
• Solid programming skills in TypeScript or JavaScript
• Experience with API testing (REST, Postman, or similar tools)
• Understanding of test design patterns and automation best practices
• Experience integrating tests into CI/CD pipelines (Jenkins, GitHub Actions)
• Familiarity with version control systems (Git)
• Experience working in Agile/Scrum environments
• Strong debugging and problem-solving skills
• Understanding of software testing principles (functional, regression, integration)

Experience we consider a plus:

• Knowledge of contract testing (e.g., Pact)
• Knowledge of cloud platforms (AWS, Azure, or GCP)
• Familiarity with ServiceNow or enterprise SaaS platforms
• Experience with observability tools (Grafana, ELK, etc.)
• Exposure to AI-driven testing approaches or self-healing tests

How you’ll benefit:

• Local benefits
• Additional benefits and perks will be shared and discussed with you by the recruiter during the interview process

#LI-KS1

Why this role matters:

The Fraud Investigation Analyst is a key position in Vonage’s fight against fraud by protecting our customers from abuse, taking down fraudsters and ensuring the profitability of the company. The duties of the role include identifying and qualifying new strategic anti-fraud initiatives to detect and prevent fraudulent transactions and behaviour. You will be confident in proactively initiating new investigations, evidence gathering, communicating effectively with other areas of the business to recover losses, and obtaining support from product and engineering teams to deliver the improvements and technologies required to detect and prevent these problems up front.

Schedule (MX/IN);

• Required to work one day each weekend (Saturday or Sunday) as part of a fixed schedule
• Standard workweek: Tuesday to Saturday, or Sunday to Thursday 
• Flexibility to adjust hours occasionally to support urgent fraud investigations or global team collaboration (in rare circumstance this may include night shifts)

Schedule (PL);

• Required to work a fixed schedule from Tuesday to Saturday
• Flexibility to adjust hours occasionally to support urgent fraud investigations or global team collaboration (in rare circumstance this may include night shifts)

Your key responsibilities:

• Proactively detect, investigate and prioritize fraud incidents across Vonage’s communication platforms
• Monitor customer accounts and traffic usage to identity anomalies, suspicious behavior, and emerging fraud patterns 
• Conduct deep dive analysis and make actionable recommendations to support fraud prevention, detection, and mitigation strategies 
• Research and validate suspected cases of traffic abuse, account compromise, or policy violations 
• Collaborate with cross-functional teams (products, engineering, compliance, customer support) to strengthen fraud controls and prevent recurrence 
• Provide timely incident response for urgent fraud activity, ensuring rapid containment and effective communication to stakeholders 
• Sharing fraud insights and trends with leadership to inform strategy and improve customer trust 

What you'll bring

Required:

• 5+ years of experience in telecommunications fraud investigation (SMS, Voice) in telecom
• Degree-level education or equivalent professional experience in fraud, risk, or data-related fields 
• Strong expertise in fraud prevention methodologies and regulatory practices, including AML, KYC, and transaction monitoring 
• Hands-on experience with fraud detection platforms, SQL, Excel, and data analytics tools; familiarity with AI/ML-based detection solutions  
• Proven track record of analyzing large, complex datasets and delivering actionable recommendations
• Strong organizational and multitasking skills with excellent attention to detail
• Effective stakeholder management, with the ability to influence cross-functionals partners and present findings clearly to both technical and business audiences 
• Experience working in distributed, global teams and adapting to a dynamic, fast-paced environment  
• Strong written and verbal communication skills
• Ability to work one day each weekend (Saturday or Sunday), as contractually agreed 

How you’ll benefit:

• Attractive Discretionary Time Off
• Private Medical Insurance with optional dependent coverage
• Educational Assistance Reimbursement Program
• Opportunities for reimbursement for conferences, trainings, and other personal development events
• Maternity and Paternity Leave
• Ask recruiter for country specific information

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.

What You Will Do

• Define and lead the performance engineering strategy across high-availability, cloud-native telecom platforms.
• Lead, train, and coordinate a distributed guild of SDETs across multiple feature teams, guiding them to build, maintain, and execute performance scripts (k6) within their fractional sprint capacity.
• Design, develop, and evolve scalable backend performance frameworks using k6, Python, Java, or TypeScript, focusing entirely on APIs, databases, and infrastructure.
• Implement and manage production traffic replay strategies (e.g., GoReplay) and complex multi-tenant test data generation to accurately recreate realistic production contention and load profiles.
• Own and drive performance, load, stress, endurance, scalability, and resilience testing, including chaos engineering practices (e.g., using AWS Fault Injection Simulator).
• Validate real-time communication systems, event-driven architectures (Kafka, RabbitMQ), and high-throughput distributed systems under production-like conditions.
• Integrate performance testing into CI/CD pipelines, enabling continuous performance validation, shift-left practices, and automated PR blocking for latency degradation.
• Leverage observability tooling (Grafana, CloudWatch, Coralogix, VictoriaMetrics, PMM) to monitor, analyse, and troubleshoot system performance.
• Establish performance benchmarks, SLAs, SLOs, and error budgets aligned with business and system requirements.
• Collaborate with architecture and data teams to identify bottlenecks, validate database architectures (e.g., MySQL, Tungsten), and present evidence-based investment proposals.
• Analyse and optimise performance across both legacy monolith systems (requiring integrated load testing) and modern microservices architectures.

What You Will Bring

• Proven experience mentoring and coordinating testing efforts across large, distributed engineering teams (e.g., conducting code reviews, guiding SDETs through framework adoption, and managing cross-team test schedules).
• Strong hands-on experience with AWS cloud services (EC2, ECS, RDS, API Gateway) with a focus on scalability and performance optimisation.
• Proven expertise in performance testing tools (specifically k6, along with JMeter or Gatling), including test design, execution, and analysis at scale.
• Hands-on experience with production traffic shadowing or replay tools (such as GoReplay).
• Deep experience testing distributed systems, message brokers (Kafka, RabbitMQ), microservices architectures, and high-volume, low-latency APIs.
• Solid backend programming and scripting skills in Python, Java, or TypeScript to build custom performance frameworks and tooling.
• Strong understanding of system design, concurrency, throughput, latency, and fault tolerance principles.
• Experience implementing performance testing within CI/CD pipelines (Jenkins, GitHub Actions) and enabling continuous performance feedback loops.
• Hands-on experience with observability and monitoring tools (Grafana, Coralogix, PMM) for performance analysis and diagnostics.
• Experience working within Agile environments and translating performance insights into actionable engineering outcomes.

Required

• Demonstrable hands-on experience in backend performance engineering and automation using Python, Java, or TypeScript.
• Proven track record of performance, scalability, and resilience testing in AWS-based cloud-native systems.
• Strong experience designing large-scale performance test strategies and leading QA/SDET teams to execute them.
• Deep understanding of API performance testing, integration testing, and system-level non-functional validation.
• Solid grasp of system architecture, distributed systems behaviour, and non-functional testing methodologies.
• Experience with observability, monitoring, and log analysis tools.
• Familiarity with RESTful APIs and event-driven systems.

Application Requirements

• Updated CV clearly demonstrating performance engineering leadership, cross-team coordination, AWS expertise, and backend automation frameworks.
• Summary of performance testing frameworks, tools (e.g., k6, GoReplay), and CI/CD methodologies implemented.
• Detailed examples of performance testing engagements (scale, environments, bottlenecks identified, business impact, improvements delivered).
• Evidence of driving performance strategy, mentoring QA/SDET teams, and influencing architecture.

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