Software Engineer 1 - DSP Runtime

Nexxen; New York (NY); Hybrid; USD 110,000 - 140,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

Disability insurance

401(k)

Employee Assistance Program (EAP)

Parental leave

discretionary time off

Company-paid holidays

Job summary

Nexxen, based in New York City, is hiring a Software Engineer I to build core DSP components for real-time programmatic advertising. The role centers on high-throughput, low-latency distributed systems to process billions of bid requests daily and deliver optimized bidding decisions.

This position is in a hybrid NYC office with three days in the office per week and remote work for the rest. You will work on core bidding infra, targeting systems, and partner integrations using modern backend tech

Qualifications

• Bachelor's degree in computer science or related field; 2+ years of professional software development experience.
• Strong programming skills in Java/Scala and OOP; familiarity with microservices and REST/gRPC APIs.
• Experience with distributed systems, real-time processing, and back-end development.

Responsibilities

• Design and develop high-performance distributed systems with sub-100ms latency.
• Build and optimize RTB services that evaluate rules, budgets, and bidding strategies in real time.
• Implement caching and in-memory stores using Redis and MongoDB.
• Monitor and improve system performance through observability and capacity planning.
• Develop and maintain scalable backend services using modern technologies.
• Write high-quality, well-tested code adhering to best practices.
• Analyze data to drive decision making and assess impact of changes.
• Follow Agile/Scrum in a fast-paced environment.

Skills

Java

Scala

OOP

REST APIs

Distributed systems

Kafka

MongoDB

Spring Boot

Git

Linux

Cloud (AWS/Azure/GCP)

Agile/Scrum

Real-time systems

Problem solving

Education

Bachelor's degree in computer science or related field

Tools

Redis

MongoDB

Job description

We are seeking a Software Engineer I to build core components of our Demand Side Platform (DSP) that powers real-time programmatic advertising. The role focuses on developing high-throughput, low-latency distributed systems capable of processing billions of bid requests per day while delivering optimized bidding decisions within strict latency constraints. You will experiment with new and innovative technologies designed for Programmatic Ad serving and Ad Tech solutions. You will work on the core bidding infrastructure, targeting systems, and integrations with supply partners to drive efficient ad delivery and maximize campaign performance.

This role will be based in our NYC local office. Our team follows a hybrid schedule, working in the office three days a week and remotely for the rest.

What You’ll Do

• Design and develop high-performance distributed systems handling large-scale bid request traffic with sub-100ms latency requirements.
• Build and optimize real-time bidding (RTB) services that evaluate targeting rules, campaign budgets, and bidding strategies in real time.
• Implement efficient caching layers and in-memory data stores using technologies such as Redis, MongoDB, etc.
• Monitor and improve system performance through observability, load testing, and capacity planning.
• Develop and maintain reliable, scalable, and efficient backend services using modern technologies and frameworks.
• Write high-quality, well-tested code that is maintainable and adheres to best practices in software engineering.
• Analyze data to drive decision making and assess the impact of system changes.
• Follow agile methodologies and work in a fast-paced environment where results are quickly visible.

What You’ll Bring

• Bachelor's degree in computer science, Software Engineering, or related field. 2+ years of professional software development experience (or equivalent practical experience). Strong programming skills in languages such as Java, Scala or Similar language. Experience with object‑oriented programming (OOP) principles and software design patterns. Familiarity with microservices architectures, REST/gRPC APIs, and asynchronous processing. Familiarity with back‑end technologies (back‑end frameworks (Spring Boot etc.).
• Familiar with distributed systems concepts.
• Familiar with real-time streaming technologies like Kafka or Kinesis.
• Experience working with relational or NoSQL databases such as MySQL, PostgreSQL, MongoDB, or SQL Server.
• Knowledge of version control systems, especially Git.
• Good understanding of RESTful APIs, microservices, and web application architecture.
• Familiarity with cloud platforms such as AWS, Azure, or Google Cloud is a plus.
• Experience with Agile/Scrum development methodologies.
• Strong problem‑solving, debugging, and analytical skills.
• Experience working within a Linux environment.
• Strong analytical and problem‑solving abilities.
• Excellent communication and teamwork abilities.

Who is Nexxen?

Flexible advertising, unified by data. Nexxen empowers advertisers, agencies, publishers and broadcasters around the world to utilize data and advanced TV in the ways that are most meaningful to them. Our flexible and unified technology stack comprises a demand‑side platform ("DSP") and supply‑side platform ("SSP"), with the Nexxen Data Platform at its core. With a global footprint, you can be part of a team that is transforming advertising through our creative, flexible and unified solutions.

Why join the Nexxen team?

With a global footprint, you can be part of a team that is transforming advertising through our creative, flexible and unified solutions. Employees hustle, commit and dedicate themselves to pillars that make up the Nexxen Way – the 3Cs - Customer Centric, Curious Mindset, Collaborative with No Ego.

At Nexxen, we value our differences, varied experiences, and collective contribution. We know that not everyone takes the same career path, so if you don’t match this job description perfectly, don’t worry! We would rather see your application than risk missing out on your potential to make an impact.

In support of pay transparency and equity, the minimum and maximum full-time annual base salary for this role in New York is $110,000-$140,000 at the time of posting. While this is our reasonable expectation this is not a guarantee of compensation or salary, actual compensation is influenced by a wide range of factors including but not limited to skill set, level of experience, education, certifications, responsibility, and geographic location. Candidates hired to work in other locations will be subject to the pay range associated with that location. We offer a variety of benefits including medical, dental, vision, disability insurance, 401(k), EAP, parental leave, discretionary time off, and company-paid holidays. The specific programs and options available will vary depending on the state, start date, and employment type.

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