Senior Backend Software Engineer (Java)

Company Description

🚀 SmartRecruiters transforms hiring for the world’s leading enterprises. We deliver an AI-powered hiring platform built for global scale, automating and optimizing the entire talent acquisition process. More than 4,000 companies, including LinkedIn, McDonald's, VISA, CD Projekt Red, Allegro rely on SmartRecruiters to build winning teams. 

🚀 In 2025, SmartRecruiters joined SAP, the global leader in enterprise applications. Together, we are accelerating the reinvention of hiring by combining AI innovation with the scale and resources of SAP’s ecosystem.

We designed our R&D structure based on the empowered product teams model. It means our teams are responsible for business outcomes and have autonomy in solving problems in the way that “customers love yet work for the business” (yes, we are heavily influenced by this and that).

Job Description

We are looking for a Senior Backend Engineer to help us build the next chapter of that AI-driven vision. Our technology platform is a global, scalable SaaS product hosted on AWS. The system is composed of hundreds of independent services (each sitting on Docker, orchestrated by Kubernetes). We build most of our services in Java and maintain an impressive uptime of 99.98% with over 2000 production deployments per month.

You may be located anywhere in Poland and work remotely or out of our Cracow office.

What you’ll deliver:

• Contribute to a full life-cycle of the product (including problem discovery, prototyping, design, implementation, and measuring adoption)

• Build services with Java / Node.js (Express, Nest.js) on top of Kubernetes/AWS infrastructure

• Build developer-friendly RESTful APIs

• Design and connect to our persistence layer (PostgreSQL, ElasticSearch)

• Collaborate with other teams

Qualifications:

• Proven experience in designing, developing, and operating distributed systems

• Experience in supporting end-to-end product lifecycle (from product discovery, solutioning, system design, implementation, production rollout, and optimization)

• While not strictly required, we see that most of our Senior Engineers have 5+ years of professional experience

• Deep command of the Java programming language

• Hands-on experience with TDD, clean code, clean architecture principles, and effective code reviews

• Strong domain modeling skills, including refactoring existing domains

• Good understanding of persistence layer and RESTful API design

• Solid understanding of distributed systems design (design for failure, eventual consistency, asynchronous communication, circuit breaking, timeouts, etc.)

• Experience with CI/CD pipelines and frequent deployments (a plus)

• Familiarity with AWS/GCP and Kubernetes/Docker (a plus)

• Proven ability to accelerate development using AI coding assistants (a plus)

• Hands-on experience building with modern LLM architectures such as Retrieval-Augmented Generation (RAG)

• Ability to coach and mentor other engineers

• Excellent collaboration and communication skills

• Strong command of the English language, both written and verbal 

Benefits:

• We support 100% remote work with Wi-Fi reimbursement and an additional stipend for the equipment (the MacBook laptop is provided by us)

• Unlimited vacation days (yes - it's really unlimited)

• Private Medical Care for you and your dependents (Luxmed)

• Wellness Programme (Multisport Card and even more)

• Company wide shutdowns in August and around Christmat

Additional information

SmartRecruiters is proud to be an Equal Employment Opportunity and Affirmative Action employer. We do not discriminate based on race, religion, color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.