Senior Software Engineer

Realize your potential by joining the leading performance-driven advertising company and a proud Great Place to Work® Certified employer in Hungary!

As a Senior Software Engineer on the Dynamic Creative Optimization team in our Budapest office, you’ll play a vital role in building and optimizing the large-scale infrastructure that powers one of Taboola’s revenue-driving systems. You’ll design and develop highly scalable backend services that process hundreds of thousands of real-time requests per second while enabling intelligent decision-making for one of the world’s largest advertising marketplaces. You’ll own complex engineering challenges end-to-end and directly influence products that reach hundreds of millions of users every day.

To thrive in this role, you’ll need:

5+ years of backend software engineering experience developing production systems using Java or another object-oriented programming language (preferably Java 8+).

Experience designing and building large-scale distributed systems and high-performance backend services.

Strong experience with SQL and NoSQL databases in production environments.

Solid understanding of web architectures, APIs, distributed systems, and scalable system design.

Experience with Kafka, Docker, Kubernetes, Jenkins, or other large-scale data technologies.

B.Sc. in Computer Science or an equivalent technical degree.

Bonus points if you have:

Solid programming skills in Python

Experience designing and operating telemetry, metrics collection, and alerting stacks at scale (Prometheus, Grafana, ELK/logging).

Practical background in optimizing infrastructure costs and resource efficiency across cloud and on-prem.

Knowledge of machine learning, algorithms, data mining, or real-time bidding systems.

Experience with Spark or HDFS.

How you’ll make an impact:

Design, build, and optimize backend infrastructure supporting one of Taboola’s largest real-time data platforms.

Own features end-to-end, from architecture and implementation through deployment, monitoring, and continuous improvement.

Develop highly scalable services processing hundreds of thousands of requests per second and tens of terabytes of new data daily.

Collaborate closely with experienced software engineers to solve complex distributed systems challenges.

Build innovative platforms that improve real-time decision-making, experimentation, and marketplace performance.

Drive technical excellence while influencing products that impact billions of content recommendations across the open web.

Design and maintain monitoring and alerting setups to spot and address system health issues before they impact users.

Why Taboola?

If you ask Taboolars what they love about working here, they’ll tell you that they’ve been empowered to realize their full potential while growing and learning from and with smart and talented people. They’ll also share more about:

Adam Singolda, Taboola Founder and CEO: “You can copy anything from another business but you can’t copy a company’s culture.”

Well-being: Competitive benefits and well-being programs tailored to the region, including comprehensive health benefits, a fully stocked kitchen, and location-specific perks.

Flexibility: We offer a hybrid work schedule with 3 days in-office, with an option to come in more often if desired.

Work with some of the biggest names: Our publisher partners include Yahoo, Conde Nast, Fox Sports, NBCU, ESPN, CBS, and E! Online. Our advertiser clients include Wells Fargo, Honda, Pinterest, and Expedia.

Ready to realize your potential?

Taboola is an equal opportunity employer and we value diversity in all forms. We are committed to creating an inclusive environment for all employees and believe such an environment is critical for success. Employment is decided on the basis of qualifications, merit, and business need.

Learn more about #TaboolaLife on LinkedIn , Facebook , Instagram , X , YouTube , & the Taboola Life Blog .

About Taboola

Taboola empowers businesses to grow through performance advertising technology that goes beyond search and social and delivers measurable outcomes at scale.

Taboola works with thousands of businesses who advertise directly on Realize, Taboola’s powerful ad platform, reaching approximately 600M daily active users across some of the best publishers in the world. Publishers like NBC News, Yahoo, and OEMs such as Samsung, Xiaomi and others use Taboola’s technology to grow audience and revenue, enabling Realize to offer unique data, specialized algorithms, and unmatched scale.

Taboola is the world’s leading recommendation platform with a strong financial background reaching over 500 million daily active users. The company, listed on NASDAQ (ticker: TBLA), had 1.91 billion USD (cca. 650 billion HUF) revenue in 2025. We acquired the Hungarian personalization start-up, Gravity R&D in 2022, to be the basis of our Central European R&D development center, into which we are now seeking candidates for this role.

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