Junior Software Engineer (Java)

TL;DR

Junior Software Engineer (Java): Developing and maintaining scalable advertising systems and big data platforms with an accent on high-throughput recommendation engines and real-time data processing. Focus on building reliable backend tools to optimize advertiser budgets and campaign performance.

Location: Hybrid in Budapest, Hungary (3 days in-office)

Company

hirify.global is a leading performance-driven advertising company that empowers businesses to grow through ad technology reaching approximately 600M daily active users.

What you will do

• Design and develop systems that enable advertisers to effectively manage budgets and optimize campaign performance.
• Build scalable and reliable solutions to process and analyze over 40TB of daily data.
• Work on a high-throughput recommendations system impacting billions of users.
• Take end-to-end ownership of designing, building, shipping, and maintaining advertiser products.
• Collaborate with engineers, data scientists, and product managers to deliver impactful solutions.

Requirements

• Bachelor's degree in Computer Science, Engineering, or a related field.
• 1+ years of professional software development experience.
• Proven experience with Java or an equivalent Object-Oriented language.
• Strong understanding of OOP, design patterns, and clean code practices.
• Technical level of English proficiency.
• Experience working with AI tools and understanding of core AI concepts.

Nice to have

• Experience with Spring and Kafka.
• Frontend development skills with JavaScript and React.
• Experience with SQL and NoSQL databases (MySQL, Vertica, Cassandra).

Culture & Benefits

• Hybrid work schedule (3 days in-office).
• Comprehensive health benefits.
• Fully stocked kitchen and local perks including gym partnerships and parking.
• Opportunity to work with global partners like Yahoo, NBCU, and ESPN.
• Inclusive environment focused on professional growth and learning.