Principal Member of Technical Staff

About Nielsen

Nielsen is a global leader in audience measurement, data, and analytics, shaping the future of

media. By measuring behavior across all channels and platforms to discover what audiences

love, we empower our clients with trusted intelligence that fuels action.

About the Team

Join the Nielsen AdTech team as we build the next-generation software suite, Nielsen One.

We are unifying Nielsen’s global offerings into one seamless experience using cutting-edge

technologies. We are looking for smart, innovative engineers ready to tackle complex integration

tasks, introduce new technologies, and influence our architectural roadmap.

The Role

As a Principal Scala Engineer, you will set the technical vision and strategy for our most

critical systems. You will act as a force multiplier—mentoring a cross-functional team,

championing engineering excellence, and pioneering the adoption of new functional and

reactive patterns.

Key Responsibilities

● Architectural Strategy: Define and evangelize the long-term roadmap for high-scale,

mission-critical distributed systems.

● Engineering Excellence: Lead architecture reviews ensuring designs align with

security, scalability, and cost-efficiency goals.

● System Design: Implement event sourcing and CQRS patterns; analyze the impact of

changes on complex data flows.

● Leadership & Mentorship: Guide junior engineers and drive a culture of continuous

learning and experimentation.

● Operational Maturity: Drive the adoption of advanced DevSecOps and SRE principles,

ensuring 24/7 application reliability and performance.

● Collaboration: Partner with Product, Data Science, and Account Management to

translate business requirements into robust technical stories.

Qualifications & Skills

Required Technical Expertise

● Scala Mastery: Minimum 2-3 years of experience with Scala, including upgrading, maintaining,

and performance tuning large-scale applications.

● Backend Ecosystem: Strong proficiency in Java and relational databases.

● Cloud & Infrastructure: Hands-on experience with AWS, Docker, and Kubernetes.

● Modern Networking: Proficiency in microservices architectures using protocols like

HTTP and gRPC.

● DevOps/SRE: Deep knowledge of CI/CD, Infrastructure as Code, and

monitoring/alerting stacks (Prometheus, Grafana, OpsGenie/PagerDuty).

● Distributed Systems: 4+ years of experience designing distributed, scalable

architectures.

Preferred Skills (The "Nice-to-Haves")

● Reactive Frameworks: Experience with Akka/Pekko (Cluster, Persistence, Projections,

and Serialization) is highly desirable but not required.

● Big Data: Exposure to Apache Spark and Spark SQL; experience tuning large-scale

Big Data applications.

● Patterns: Familiarity with CQRS, Event Sourcing, and Domain-Driven Design (DDD).

● Testing: Strong commitment to TDD (Test-Driven Development).

Education & Experience

● Bachelor’s or Master’s degree in Computer Science or a related discipline (B.Tech from

a Tier 1 college preferred).

● Prior experience in a SaaS or high-growth, tech-first product company.

Please be aware that job-seekers may be at risk of targeting by scammers seeking personal data or money. Nielsen recruiters will only contact you through official job boards, LinkedIn, or email with a nielsen.com domain. Be cautious of any outreach claiming to be from Nielsen via other messaging platforms or personal email addresses. Always verify that email communications come from an @nielsen.com address. If you're unsure about the authenticity of a job offer or communication, please contact Nielsen directly through our official website or verified social media channels.