Principal Member of Technical Staff

About the role

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. 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.

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.

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