Java Backend Developer (f/m/x)

Emporix; Poland; Hybrid; PLN 151,000 - 251,000; Full time

Benefits offered by this job

Hybrid work model

Office in Gliwice

Monthly office visits

Job summary

Emporix in Poland is hiring a Java Developer to build secure, scalable backend systems. You will work on microservices, AI agent workflows, and cloud deployments with GCP and Kubernetes.

The role supports hybrid work from Gliwice or remote in Poland, with monthly office visits to meet the team. You will design scalable APIs, implement real-time pipelines, and ensure security according to OWASP standards while collaborating with cross‑functional teams.

Qualifications

• 4+ years of Java backend development experience.
• Degree in Computer Science or related field.
• Experience with microservices architecture and cloud platforms.

Responsibilities

• Build and maintain scalable backend systems and APIs using Java.
• Design and implement microservices architectures for reliability and scalability.
• Use Spring Boot or Micronaut to implement modular services.
• Integrate AI/LLM workflows into Java microservices and manage real-time data pipelines.

Skills

Java

Backend development

Spring Boot

Micronaut

Go

Cloud / GCP

Kubernetes

MongoDB

English & Polish (B2)

Education

Bachelor's degree in Computer Science or related field

Tools

Kubernetes

Compute Engine

Pub/Sub

OWASP Dependency-Check

Job description

Emporix is an AI-driven Autonomous Commerce Execution Platform that gives enterprises full control over how their commerce works. It orchestrates operations end-to-end—so companies can scale faster, respond smarter, and deliver better customer experiences.

Java Developer to join our team in Poland, with a passion for building secure, scalable, and high-performance backend systems. In this role, you’ll focus on leveraging Java and modern frameworks to develop innovative solutions, ensure system security, and work with cutting-edge cloud technologies. If you’re excited about microservices architecture, AI agent workflows, secure coding, and modern DevOps practices, we’d love to hear from you.

You can work from our modern office in Gliwice or remotely from anywhere in Poland, with a visit to the office at least once per month to meet the team.

What You’ll Be Doing

• Build and maintain scalable backend systems and APIs using Java.
• Design and implement microservices architectures to ensure reliability and scalability.
• Use frameworks such as Spring Boot or Micronaut to implement modular and efficient services.
• Integrate LLM APIs and AI agent workflows directly into Java microservices to support autonomous commerce logic.
• Build and maintain event-driven pipelines that stream real-time transaction data into AI decision engines.

Security Implementation

• Apply best practices in secure coding and ensure compliance with OWASP standards.
• Regularly scan for vulnerabilities using tools like OWASP Dependency-Check and mitigate identified risks.
• Deploy and optimize backend services on Google Cloud Platform (GCP) using Kubernetes, Cloud Storage, and Compute Engine.
• Contribute to the design of cloud-native, high-availability architectures.

Collaboration and Optimization

• Work closely with cross-functional teams, including frontend developers and system architects, to deliver robust solutions.
• Continuously enhance system performance for high availability and fault tolerance.
• Optimize service throughput, latency, and queue processing to reliably handle asynchronous AI/ML workloads.

Documentation

• Produce detailed documentation for system architecture, APIs, and security protocols to ensure long-term maintainability.

What We’re Looking For

• Experience: You have 4+ years of hands‑on experience with Java development and building large‑scale, high‑performance backend systems.
• Education: You hold a degree in Computer Science, Computer Engineering, or a related technical field (or equivalent practical experience).
• Architecture: Proven experience designing microservices‑based systems optimized for complex or data‑intensive environments, with familiarity in Event Sourcing and distributed system patterns.
• Cloud & Databases: You have hands‑on experience with Google Cloud Platform (including Kubernetes and Compute Engine), NoSQL databases (especially MongoDB), and messaging systems (like Pub/Sub).
• Integrations: Experience with integration and workflow systems like Make or n8n.
• Security: Strong understanding of OWASP standards, encryption, and secure coding practices.
• Mindset & Autonomy: You are able to work autonomously while delivering innovative, AI‑enabled backend solutions.
• Communication: You communicate effectively in both Polish and English (minimum B2 level).

Bonus Points

• AI Stack: Hands‑on experience integrating LLM APIs, vector databases, or AI framework integrations in Java.
• Additional Languages: Experience with Go is a plus.

Why You’ll Love It Here

• An Amazing Team & Culture (Our Best Asset!): We aim high and build rapidly, but we do it together. You will join an incredible, high‑trust, and psychologically safe workplace where people truly care for one another. We collaborate closely, support each other unconditionally, and genuinely have fun doing what we do.
• Cutting-Edge Technology: Work on advanced microservices architectures and leverage the latest tools in cloud computing, DevOps, and AI to create groundbreaking solutions.
• Autonomy and Innovation: Enjoy the freedom to explore new ideas, experiment with innovative technologies, and influence the technical direction of a rapidly growing company.
• Collaborative Culture: Join a team of talented professionals who value knowledge‑sharing, open communication, and a passion for building exceptional systems.
• Flexible Work Setup: Enjoy a hybrid work model that promotes flexibility and personal well‑being while encouraging collaboration and meaningful team connections. (Meet in our Gliwice office at least once a month.)
• Impactful Contribution: Be part of a company where your work directly impacts the success of a next‑generation commerce platform used by top‑tier businesses.

Come as you are: We are building an AI‑driven future for commerce, and above all, we believe great software is built by great teams. Most importantly, we look for good people who work exceptionally well together—proactive, positive team players who bring great energy to problem‑solving. Emporix is an equal opportunity employer, and even if you don’t check every single box, but eager to build scalable Java backend systems alongside a supportive team, we’d love to meet you.

Compensation range

• Employment Contract (UoP): 13,500 – 22,500 PLN / month (Gross)
• B2B Contract: 16,000 – 27,000 PLN / month Net (+ VAT)
• (Range reflects Mid to Senior levels; final compensation will be discussed depending on skills and experience)