Why this role matters:

Vonage's API Business Unit is building a modern, lean architecture practice in a small central architecture team that empowers distributed teams to make fast, sound decisions independently. This is a high-impact individual contributor role at the heart of that practice. 
You will work across product and platform boundaries, providing the architectural clarity, shared patterns, and strategic direction that connects engineering decisions to business outcomes.
You'll bring structure to complexity, help teams navigate trade-offs, and build the architectural capability that lets the organisation move faster with confidence.

Your key responsibilities:

• Define and evolve architecture strategy, reference models, and target states across the CPaaS platform
• Shape technology direction through standardisation, simplification, and platform investments
• Co-ordinate cross-domain architectural initiatives (resilience, security, compliance, observability, developer experience)
• Champion architecture practices and governance (ADRs, Well-Architected practices)
• Partner with engineering and product leaders to translate business needs into scalable solutions
• Provide hands-on support in solving complex architectural challenges
• Communicate architectural vision and decisions to both technical and business stakeholders
• Mentor engineers and architects while contributing to internal communities and best practices
• 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 you'll bring

Required:

• Demonstrable skills and experience in a senior architecture role with scope across multiple teams, products, or shared platforms
• Demonstrable experience of leveraging architectural practice to steer and deliver measurable business value and reduce unnecessary costs.
• Deep expertise in cloud-native and distributed systems architectures, ideally on AWS
• Strong experience with SaaS, API-based, and developer-facing platforms — CPaaS or communications domain experience is a plus
• Proficiency across modern technologies and practices: microservices, Kubernetes, event-driven architectures (Kafka), CI/CD, DevSecOps, and Infrastructure as Code
• Proven ability to apply structured architectural techniques — capability mapping, ADRs, C4 diagrams, in practical, proportionate ways
• Strong communication and influencing skills, with the ability to align stakeholders and drive decisions without formal authority
• Experience balancing architectural consistency with team autonomy in fast-moving, agile engineering organisations

Experience we consider a plus:

• Knowledge of communications protocols (e.g. SMS/RCS, WebRTC, SIP)
• Familiarity with enterprise architecture frameworks (e.g. TOGAF, Zachman)
• AWS, Kubernetes, or related cloud certifications
• Knowledge and experience of working within an Agile methodology.

How you’ll benefit:

• Medical Insurance
• Glasses Reimbursement
• Life Insurance – Allianz Family
• Kafeteria – My Benefit
• Ericsson Care Line
• Discretionary Time Off (DTO)
• Volunteer Time Off (VTO)
• Additional benefits and perks will be discussed during the interview process

#LI-YB1

Why this role matters:

We’re seeking a Java Software Engineer to join our Cloud Engineering team and help drive innovation across the Vonage Video Platform. This role will focus on enhancing our PaaS backend systems, improving cloud resource control and provisioning, and contributing to scalable architecture design and distributed computing solutions. 

As part of the team, you’ll contribute to both new feature development and backend system improvements, with a strong focus on quality, fault tolerance, and performance. You’ll gain hands-on experience with real-time communications, and use data to help improve how we build and scale our services.

This is a great opportunity to grow your skills by working on large-scale, highly available systems alongside a team of experienced engineers who are passionate about cloud infrastructure, media technologies, and real-time communication.

Your key responsibilities:

• Hands-on software development and system design.
• Implement new features for the cloud based API Gateway, Media Control and Signaling systems for the Vonage Video Platform.
• Contribute to software architectures for a highly distributed network application, resource optimization strategies, and real-time stream/message processing.
• Design and develop approaches to measure, evaluate and improve service quality.
• Collaborate on projects involving signalling fabric and coordinate with other teams.
• 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

What you'll bring:

• Strong Java 17 coding skills, and willingness to learn more languages.
• JavaScript, and experience with HTML5 APIs all across different browser engine APIs in general.
• Understanding regarding memory management, garbage collection, concurrency.
• Excellent debugging and problem solving skills.
• Good understanding of algorithms, data structures.
• Track record of delivering high quality code in a fast-paced environment.

Experience we consider a plus:

• Proficiency in the Netty framework for high-performance network programming.
• Strong experience with Spring Boot for building scalable and robust APIs.
• Hands-on expertise with message brokers such as Apache Kafka, ZeroMQ, RabbitMQ, or similar queueing systems.
• Working knowledge of Redis, Kubernetes, Helm, Docker, AWS, and ElastiCache for cloud-native and distributed systems.
• Experience with CI/CD pipelines using Jenkins or equivalent tools.
• Familiarity with Go programming language.
• Understanding of communication technologies, protocols, and standards such as VoIP, SIP, H.323, XMPP, etc.

#LI-JM1

Why this role matters:

We’re seeking a Java Software Engineer to join our Cloud Engineering team and help drive innovation across the Vonage Video Platform. This role will focus on enhancing our PaaS backend systems, improving cloud resource control and provisioning, and contributing to scalable architecture design and distributed computing solutions. 

As part of the team, you’ll contribute to both new feature development and backend system improvements, with a strong focus on quality, fault tolerance, and performance. You’ll gain hands-on experience with real-time communications, and use data to help improve how we build and scale our services.

This is a great opportunity to grow your skills by working on large-scale, highly available systems alongside a team of experienced engineers who are passionate about cloud infrastructure, media technologies, and real-time communication.

Your key responsibilities:

• Hands-on software development and system design.
• Implement new features for the cloud based API Gateway, Media Control and Signalling systems for the Vonage Video Platform.
• Contribute to software architectures for a highly distributed network application, resource optimization strategies, and real-time stream/message processing.
• Design and develop approaches to measure, evaluate and improve service quality.
• Collaborate on projects involving signalling fabric and coordinate with other teams.
• Embed AI-assisted engineering into daily practice to accelerate delivery and enhance outcomes
• Proactively adopts emerging AI capabilities to improve workflows and share best practices with the team
• 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

What you'll bring:

• Strong Java 17 coding skills, and willingness to learn more languages.
• JavaScript, and experience with HTML5 APIs all across different browser engine APIs in general.
• Understanding regarding memory management, garbage collection, concurrency.
• Excellent debugging and problem solving skills.
• Good understanding of algorithms, data structures.
• Track record of delivering high quality code in a fast-paced environment.

Experience we consider a plus:

• Proficiency in the Netty framework for high-performance network programming.
• Strong experience with Spring Boot for building scalable and robust APIs.
• Hands-on expertise with message brokers such as Apache Kafka, ZeroMQ, RabbitMQ, or similar queueing systems.
• Working knowledge of Redis, Kubernetes, Helm, Docker, AWS, and ElastiCache for cloud-native and distributed systems.
• Experience with CI/CD pipelines using Jenkins or equivalent tools.
• Familiarity with Go programming language.
• Understanding of communication technologies, protocols, and standards such as VoIP, SIP, H.323, XMPP, etc.

#LI-JM1

Senior Data Scientist — Verify V2 Data Products, Insights & Monetization

Mission

Build the quantitative foundation that proves and amplifies Verify v2's value—transforming verification telemetry into a reliable, customer-facing data infrastructure that demonstrates measurable ROI, optimizes channel economics, and lays the groundwork for an autonomous identity and verification platform.

You'll own the end-to-end data pipeline from raw events to customer-visible metrics that answer the question every customer asks: "What is this product actually worth to my business?"

What You'll Own

1. Customer Value Infrastructure (Prove ROI at Every Level)

Build the metrics that quantify customer-specific business impact:

• Design and maintain a real-time Customer ROI Engine calculating cost-per-successful-verification, fraud savings, conversion lift, and time-to-value by customer, segment, and use case
• Create customer-facing Value Dashboards showing verification success rates vs. industry benchmarks, cost efficiency trends, and projected savings
• Develop attribution models connecting verification outcomes to downstream business metrics (account activations, transaction completion, fraud prevented)

Establish pricing intelligence at the customer level:

• Build granular unit economics visibility: cost-to-serve, margin contribution, and channel mix efficiency per customer
• Model willingness-to-pay signals and usage patterns to inform tiered pricing and custom packaging
• Quantify the revenue impact of workflow configurations (Silent Auth-first vs. SMS fallback economics)

2. Channel Performance & Optimization (Make Every Verification Smarter)

Create a single source of truth for channel economics:

• Unified performance metrics across SMS, Voice, Email, WhatsApp, and Silent Authentication: deliverability, latency, conversion rate, cost-per-success, and failure taxonomy
• Country × carrier × channel performance matrices with confidence intervals and anomaly flags
• Real-time channel health monitoring with automated alerting for degradation

Build the intelligence layer for workflow optimization:

• Predictive models for optimal channel routing (next-best-channel given geography, time, customer segment, historical performance)
• Fallback effectiveness analysis: quantify conversion recovery and cost trade-offs for each fallback path
• Silent Authentication signal analysis: success/rejection drivers, speed benchmarks, and UX impact measurement

3. Product Data Platform (Foundation for Autonomy)

Design data architecture that enables autonomous decision-making:

• Define the canonical event schema and taxonomy for all verification touchpoints (API calls, webhook events, workflow steps, outcomes)
• Build certified, versioned datasets powering self-serve analytics, ML models, and customer-facing products
• Implement data quality infrastructure: lineage tracking, anomaly detection, freshness SLAs, and automated reconciliation

Ship ML/analytics products that move toward autonomous verification:

• Conversion propensity models: predict verification success probability in real-time to optimize routing
• Fraud & abuse detection: anomaly scoring for traffic pumping, IRSF patterns, and bot behavior—with automated response recommendations
• Time-to-verify prediction: forecast completion time to enable SLA commitments and dynamic timeout tuning
• Customer segmentation: behavioral and commercial clustering for personalized workflows and pricing

4. Monetization (Turn Data into Revenue)

Develop data products that customers will pay for:

• Verification Intelligence Suite: premium analytics, industry benchmarks, and deliverability diagnostics
• Workflow Optimizer: ML-driven recommendations for channel sequencing, timeout configuration, and fallback strategies by geography and vertical
• Fraud Protection Package: risk scoring, pumping detection, and abuse pattern alerts with quantified savings

Define commercial success:

• Package entitlements, usage thresholds, and upgrade triggers
• Track attach rates, retention lift, and expansion revenue attributable to data products
• Build the business case for each offering with clear ROI narratives

Key Responsibilities

• Own the customer value narrative: Build and maintain the infrastructure that lets every customer (and our sales team) articulate Verify's ROI in dollars and percentages
• Ship production ML systems: From feature engineering through deployment, monitoring, and iteration
• Create reliable, self-serve data products: Dashboards, APIs, and datasets that scale without manual intervention
• Drive pricing and packaging decisions: Provide the quantitative foundation for how we charge and what we bundle
• Partner across the organization: Work with Product, Engineering, Finance, Sales, and Customer Success to embed data into every decision
• Report to leadership: Own KPI narratives on margin drivers, growth levers, and competitive positioning

Success Measures

What "Great" Looks Like

Core Data Science

• Experimentation design and causal inference (A/B testing, CUPED, uplift modeling, instrumental variables)
• Predictive modeling: classification, survival analysis, time series, real-time scoring
• Anomaly detection with adversarial thinking (fraud patterns, traffic manipulation, abuse signals)
• Customer analytics: segmentation, LTV modeling, churn prediction, cohort economics

Data Engineering Fluency

• Strong SQL; Python (pandas, scikit-learn, PySpark); comfortable shipping production code
• Event-driven architecture: streaming pipelines and real-time analysis and adaptation (Apache Flink), webhook processing, idempotency, late-arrival handling
• Data modeling: star schemas, semantic layers, data contracts, metric certification
• MLOps: feature stores, model monitoring, CI/CD for analytics, orchestration (Airflow/Dagster)

Product & Commercial Analytics

• Pricing analytics: unit economics, willingness-to-pay estimation, margin optimization
• Funnel analysis for multi-step, multi-channel workflows
• Dashboard design and narrative clarity (Looker, Tableau, dbt metrics layer)
• Packaging and monetization strategy for data products

Domain Expertise (Highly Valued)

• CPaaS, verification, or 2FA: OTP mechanics, deliverability constraints, carrier relationships
• Silent Authentication: network-based verification, success/rejection drivers, integration patterns
• Fraud and risk: traffic pumping, IRSF, bot detection, abuse economics
• Privacy and compliance: GDPR/CCPA, data minimization, audit requirements, customer-facing data controls

Background

• 5–8+ years in data science/analytics, with ≥2 years building and shipping data products
• Track record of translating ambiguous business questions into measurable outcomes
• Experience in B2B SaaS, identity/auth, fintech, messaging/telecom, or fraud analytics preferred
• Demonstrated ability to influence product and pricing decisions with data

Why This Role Matters

Verification is shifting from a cost center to a strategic differentiator. The data infrastructure you build will:

1. Prove value — Give every customer undeniable evidence of ROI
2. Optimize economics — Make every verification faster, cheaper, and more reliable
3. Enable autonomy — Lay the foundation for a platform that routes, optimizes, and protects without human intervention

You'll shape how Vonage—and our customers—think about identity verification as a measurable, optimizable, intelligent system.

#LI-WW1

Vonage Communications APIs: 

As an emerging leader in the $10B+ communications API market, we empower global brands to connect better with their customers, employees, and partners through transformative communications experiences. For example, Vonage API solutions empower organizations to build their custom omnichannel communications structure. This allows them to reach and engage customers on their preferred schedule and channel — including voice, video, and messaging. Think of a rideshare service instantly connecting with customers, hospital staff conducting remote monitoring, customers verifying their identity before completing a purchase, AI virtual agents servicing customers around the clock, and much more.

Why this role matters:

We're looking for a Developer Advocate (Video) to join the Vonage Developer Relations team and drive the successful adoption of our next-generation video platform. In this strategic role, you'll lead developer experience initiatives for our video platform, helping to create tools and resources that ensure users can quickly and painlessly build with our Video API. Your work will be crucial in helping developers leverage our video APIs effectively, combining technical expertise with strategic insight to drive platform adoption and usage.

As an Developer Advocate (Video), you will be the bridge between our engineering teams, product management, and the developer community, ensuring our video products are accessible and effectively implemented. You'll focus on creating reference implementations, developer resources that showcase the power and scalability of our video platform, and migration tools while facilitating smooth transitions from legacy systems.

Your key responsibilities:

• Technical Content: Create and maintain comprehensive technical documentation, code samples, and tutorials that demonstrate best practices for video API implementation
• Community Education: Host webinars, workshops, and hackathons to educate developers on building and scaling video-driven solutions
• Documentation Tools: Develop and maintain tools that help keep API documentation current, including automated testing of code samples and integration examples.
• Migration Support: Design and develop tools, scripts, and utilities that facilitate seamless migration from legacy OpenTok infrastructure to our modern video platform.
• Product Feedback: Gather and analyze developer feedback to identify opportunities for tooling improvements and new automation solutions.
• Cross-team Collaboration: Work closely with Product, Engineering, and Support teams to ensure tooling aligns with platform capabilities and developer needs.

What you'll bring

Required:

• Strong software development experience with expertise in video/streaming technologies
• Proficiency in multiple programming languages relevant to both server-side and client-side video development
• Experience with API design and implementation
• Strong technical writing and documentation skills
• Excellent problem-solving and debugging skills
• Strong communication skills and ability to work in a remote environment

Experience we consider a plus:

• Previous Developer Experience, Developer Relations or Developer Advocacy experience
• Knowledge of Android, iOS, or React development
• Understanding of WebRTC and real-time communication protocols
• Proficiency in multiple programming languages commonly used for tooling and server-side development
• Familiarity with cloud communication platforms (CPaaS), Network APIs, and Vonage APIs
• Background in creating developer documentation and technical content

How you’ll benefit:

• Private Medical Insurance
• Group Pension Plan
• Life Insurance and Group Personal Accident
• Ericsson Care Line (EAP)
• Discretionary Time Off (DTO)
• Volunteer Time (VTO)

#LI-AR1-WW1

Vonage Communications APIs: 

As an emerging leader in the $10B+ communications API market, we empower global brands to connect better with their customers, employees, and partners through transformative communications experiences. For example, Vonage API solutions empower organizations to build their custom omnichannel communications structure. This allows them to reach and engage customers on their preferred schedule and channel — including voice, video, and messaging. Think of a rideshare service instantly connecting with customers, hospital staff conducting remote monitoring, customers verifying their identity before completing a purchase, AI virtual agents servicing customers around the clock, and much more.

Why this role matters:

We're looking for a Developer Advocate (Network Applications) to join the Vonage Developer Relations team and drive the successful adoption of our network-powered API solutions. In this strategic role, you'll lead developer experience initiatives for our network APIs including Verify, Identity Insights, and other carrier-connected products, helping to create tools and resources that ensure users can quickly and securely integrate network-based authentication, fraud prevention, and identity verification into their applications. Your work will be crucial in helping developers leverage the power of carrier networks and telecom infrastructure, combining technical expertise with strategic insight to drive platform adoption and usage.

As a Developer Advocate (Network Applications), you will be the bridge between our engineering teams, product management, and the developer community, ensuring our network-powered products are accessible and effectively implemented. You'll focus on creating reference implementations and developer resources that showcase the security, reliability, and global reach of our network APIs while educating developers on best practices for authentication, identity verification, and fraud prevention.

Your key responsibilities:

• Technical Content: Create and maintain comprehensive technical documentation, code samples, and tutorials that demonstrate best practices for implementing Verify, Identity Insights, and other network API integrations
• Community Education: Host webinars, workshops, and hackathons to educate developers on building secure authentication flows, implementing fraud detection, and leveraging carrier network data
• Documentation Tools: Develop and maintain tools that help keep API documentation current, including automated testing of code samples and integration examples
• SDK Development: Design and contribute to SDKs and developer tools that simplify integration of network APIs across multiple platforms and programming languages
• Product Feedback: Gather and analyze developer feedback to identify opportunities for API improvements, better developer experiences, and new network-powered features
• Cross-team Collaboration: Work closely with Product, Engineering, and Support teams to ensure tooling aligns with platform capabilities, security requirements, and developer needs

What you'll bring

Required:

• Strong software development experience with expertise in authentication, identity verification, or security-related technologies
• Proficiency in multiple programming languages relevant to both server-side and client-side development
• Experience with API design, implementation, and RESTful web services
• Understanding of authentication flows, security best practices, and fraud prevention concepts
• Strong technical writing and documentation skills
• Excellent problem-solving and debugging skills
• Strong communication skills and ability to work in a remote environment

Experience we consider a plus:

• Previous Developer Experience, Developer Relations or Developer Advocacy experience
• Understanding of telecom networks, carrier APIs, and mobile network infrastructure
• Experience with authentication protocols (OAuth, OIDC, SAML) and multi-factor authentication
• Familiarity with fraud detection, risk scoring, and identity verification solutions
• Proficiency in multiple programming languages commonly used for tooling and server-side development
• Familiarity with cloud communication platforms (CPaaS), Network APIs, and Vonage APIs
• Background in creating developer documentation and technical content
• Experience with SDK development and maintenance across multiple platforms

How you’ll benefit:

• Private Medical Insurance
• Group Pension Plan
• Life Insurance and Group Personal Accident
• Ericsson Care Line (EAP)
• Discretionary Time Off (DTO)
• Volunteer Time (VTO)

#LI-AR1

Why this role matters:

This role is crucial for driving the growth and success of Vonage's API/CPaaS solutions, particularly for the Video API vertical team. As a Video API Account Executive, you will play a pivotal role in expanding existing relationships with tech-savvy customers and cultivating new ones, focusing on high-growth digital and cloud software companies. Given Vonage's position as a leader in WebRTC Video solutions, your work will directly contribute to helping innovative companies integrate video into their customer experiences, setting them apart in their respective industries.

Your key responsibilities:

• Drive opportunities through the entire sales cycle from pipeline generation through to close and post-sales / up-sell
• Employ a value & solution oriented sales methodology with a focus on real time video communication solutions
• Build upon the growth & adoption of our Video APIs in the Mid-Market segment in the EMEA region
• Own cross functional opportunity management from Pre-Sales through to working with Customer Success
• Drive a pipeline generation cadence to develop expansion opportunities and land new target accounts 
• Lead compelling presentations of Vonage’s CPaaS product and vision to a broad range of audiences from c-level executives to individual contributors leveraging Vonage’s value-based sales methodology
• Provide timely and accurate forecasts and clear visibility on sales and revenue performance by actively handling your pipeline of opportunities on pre-committed revenue deals
• Leverage and coordinate cross-functional internal teams to efficiently navigate complex sales cycles (incl. Sales Development, Pre-Sales, Legal, Engineering, Security, Marketing, Product and Customer Success)

What you’ll bring:

Required:

• Fluent Spanish and French
• Experience in Enterprise technology sales, SaaS, Cloud, or API based communications, with a proven track record of success.
• Experience selling WebRTC based solutions or other Video technologies 
• Demonstrated success in prospecting, identifying new customers through cold calling, lead generation and networking.
• Strong relationship-building skills with executives across business, marketing, and technology teams.
• Experience collaborating effectively with Pre-Sales Consultants.
• A proactive attitude, creativity, curiosity, and the ability to work both independently and collaboratively across the business.

Experience we consider a plus:

• A solution-oriented sales approach that spans the full delivery lifecycle, with a focus on consistently growing and maintaining a robust new business pipeline that meets and exceeds targets.
• Experience in gaming, finance, social or healthcare verticals selling Video products
• Experience working closely with pre-sales teams to design innovative CPaaS solutions, especially for clients looking to migrate their communication infrastructure to the cloud and integrate APIs into their customer experience flows.

How you’ll benefit:

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

#LI-MW1

Why this role matters:

As an Outbound Sales Development Representative (SDR), you’ll be the first point of contact for potential customers, playing a crucial role in generating and qualifying new sales opportunities. Your primary goal is to identify prospects, assess their needs, and schedule meetings with the sales team to drive pipeline growth.

This role provides tremendous career growth opportunities within Vonage. We expect our SDRs to develop their sales careers and advance within the organization.

Your key responsibilities:

• Identify and qualify new sales opportunities through outbound prospecting, including calls, emails, and LinkedIn outreach.
• Leverage sales tools such as LinkedIn Sales Navigator and CRM software to research and engage with potential customers.
• Customize outreach strategies by researching prospects' goals, market trends, and pain points.
• Educate prospects on how Vonage API solutions can address their business challenges.
• Maintain detailed records of customer interactions and insights in our CRM system.
• Collaborate with marketing, account managers, and sales leadership to refine messaging and improve sales strategies.
• Consistently achieve and exceed monthly targets for qualified meetings and new opportunities.

What you'll bring:

• Fluent French is required
• A proactive and determined mindset with a passion for delivering solutions to customers.
• Strong organizational skills and the ability to manage high volumes of outreach efficiently.
• Excellent communication skills - both written and verbal - with a strong ability to listen and engage.
• A highly collaborative approach with a focus on teamwork and shared success.
• Creativity in prospecting strategies and the ability to take initiative.
• Proven ability to meet and exceed ambitious targets.
• Previous experience in Sales Development, particularly in a fast-paced SaaS environment, is preferred. However, we welcome candidates eager to develop their sales careers.
• Familiarity with Salesforce, LinkedIn Sales Navigator, and other sales tools is an advantage.

How you’ll benefit:

• Discretionary Time Off
• Private Medical Healthcare
• Pension scheme
• Ericsson support line
• Hybrid work (2 days from office in Madrid, 3 days remotely)

#LI-MW1