Software Engineer (Java)

Company Description

At The Stepstone Group, we have a simple yet very important mission: The right job for everyone. Using our data, platform, and technology, we create opportunities for job seekers and companies around the world to find a perfect match, in fair and equitable way. With over 20 brands across 30+ countries, we strive for fair and unbiased hiring.

At our Tech Hub, located near Wilanowska Metro, we are here as more than 300 ambitious specialists who work on the development of our IT products. We are proud to be part of The Stepstone Group, a global expert in job-tech platforms and e-recruiting.

Join our team of 4,000+ employees and be part of reshaping the labour market and becoming the world’s leading job-tech platform.

Job Description

Join our team and you’ll be responsible for building a conversational journeys platform and journeys themselves. What are conversational journeys you ask? LLM powered, natural language based conversations via different channels. That allow us to find best fitting jobs and candidates matches.

Working in the Jobs via Natural Language (team Phoenix) department you will be part of that fascinating process.

This is so important to us. By joining our team, you will be playing a vital role as together we reimagine the labour market to make it work for everybody.

Your responsibilities:

• Design and Develop Backend Services for LLM Integration
  • Build and maintain scalable backend components (using Spring Boot) that interact with LLM APIs (e.g., OpenAI).
  • Develop RESTful APIs that serve LLM-generated responses or handle user interactions.
• Optimize Data Pipelines and Preprocessing for Model Input
• Integrate LLM Output into Application Workflows
  • Develop logic to consume and process LLM responses—e.g., filtering, ranking, or enriching them before delivering to users.
  • Implement fallback strategies or human-in-the-loop flows when model output is ambiguous or unreliable.
• Ensure Reliability, Monitoring, and Logging of LLM Interactions
• Translate business and product requirements into technical solutions that leverage LLMs effectively.

Qualifications

• Strong hands-on experience with Java, including expertise in Spring Boot for building scalable, production-ready applications.
• Expertise in working with relational databases (PostgreSQL). Knowledge of writing efficient SQL queries, indexing, and optimizing database performance.
• Experience building and integrating RESTful APIs.
• Version Control, CI/CD
  • Proficiency with Git for version control
  • Hands-on experience in setting up and maintaining CI/CD pipelines (bamboo, bitbucket)
  • AWS ecosystem experience
• Strong skills in writing unit and integration tests.
• Knowledge of Test-Driven Development (TDD)
• Familiarity with Agile methodologies (Scrum or Kanban), including working in sprint cycles and collaborating in cross-functional teams.
• Understanding of Python and its use in building backend services, data processing, or automation scripts could be a plus.

Additional Information

We’re a community here that cares as much about your life outside work as how you feel when you’re with us. Because your job shouldn’t take over your life, it should enrich it. Here are some of the benefits we offer:

• Premium medical and dental care
• Life insurance
• Flex Benefits - Worksmile Cafeteria System (Multisport, vouchers, tickets etc.)
• Employee Referral Program
• Hackathons, Knowledge Sharing Hours, In-house projects
• Tech and sport communities
• Events and integration parties
• Charity initiatives, 2 extra volunteer days
• English/German classes
• Game room and chillout zone

Our commitment
Equal opportunities are important to us. We believe that diversity and inclusion at The Stepstone Group are critical to our success as a global company, so we want to recruit, develop, and keep the best talent. We encourage applications from everyone, regardless of background, gender identity, sexual orientation, disability status, ethnicity, belief, age, family or parental status, and any other characteristic.