Expert Java Developer (with German language)

SoftServe; Polska; Hybrid; PLN 393,000 - 568,000; Full time

Job summary

SoftServe is seeking an Expert Java Developer with German language skills to modernize a smart meter data platform on the Transition Smart Energy Platform project for a German transmission operator. You will take over an existing solution and advance it through 2027, processing large energy data volumes reliably.

You will develop high-performance Java services, work with Kafka, Kubernetes, and Azure DevOps, and contribute to frontend work when needed.

Qualifications

• 8+ years of Java development experience.
• 8+ years with Spring Boot or similar frameworks.
• 6+ years Docker and Kubernetes experience.
• Kafka and/or Kafka Streams experience.
• Recent hands-on project work in the last 3 years.
• Analytical approach to incident analysis in production.
• Clear, proactive communication in a distributed team.
• Expert knowledge of Java and related technologies.
• Knowledge of design patterns, CI/CD, and security practices.
• Experience with relational and non-relational databases.
• Experience with OpenShift and/or Azure.
• Fluent German and English (C1) to work with client and document in both languages.

Responsibilities

• Develop and maintain high-performance Java services processing large volumes of data.
• Modernize the inherited platform step by step for performance and resilience.
• Collaborate with DevOps, architects, and client stakeholders to plan changes.
• Analyze and resolve incidents to keep production reliable.
• Build event-driven data flows with Kafka and Kafka Streams.
• Operate and troubleshoot services on Kubernetes; monitor with Grafana and Splunk.
• Maintain Azure DevOps pipelines for CI/CD.
• Contribute to Angular frontend work when required.

Skills

Java

Spring Boot

Kafka

Kubernetes

Docker

OpenShift

Azure

Relational DBs

NoSQL

German (C1)

English (C1)

Incident analysis

Design patterns

CI/CD

Tools

Grafana

Splunk

Azure DevOps

OpenShift

Job description

Expert Java Developer (with German language)

In this role, you will keep a smart meter data platform fast, stable, and ready for the future. On the Transition Smart Energy Platform (SXP) project for a German transmission system operator, you will take over an existing solution and modernize it step by step through 2027, so that large volumes of energy data are processed reliably every day.

Responsibilities

• Develop and maintain high-performance Java services that receive and process large volumes of smart meter data
• Modernize the inherited platform step by step, improving performance, maintainability, and resilience
• Collaborate closely with DevOps engineers, architects, and client stakeholders to plan changes and release them safely
• Analyze and resolve third-level incidents and fix bugs to keep production services dependable
• Build event-driven data flows with Kafka and Kafka Streams
• Operate and troubleshoot services on Kubernetes, and monitor them with Grafana and Splunk
• Maintain Azure DevOps pipelines for continuous integration and delivery
• Contribute to Angular frontend work when the project requires it

Requirements

• 8+ years of experience in Java development and related technologies
• 8+ years of experience with Spring Boot or similar frameworks (Quarkus, Jakarta EE)
• 6+ years of experience with Docker and Kubernetes
• Practical experience with Kafka and/or Kafka Streams
• Recent hands-on project experience (within the last 3 years) in the technologies above
• Analytical approach to incident analysis and problem-solving in production environments
• Clear, proactive communication within a distributed team
• Expert knowledge of Java and related technologies
• Software design patterns, continuous integration, and security practices
• Experience building solutions for large data volumes with relational and non-relational databases
• Experience with OpenShift and/or Azure
• Knowledge of power grids and energy markets
• Fluent German and English (C1) to work with the client, run technical discussions, and write documentation in both languages

SoftServe is an equal opportunity employer. Qualified applicants will receive consideration regardless of race, color, ancestry, ethnicity, national origin, religion, sex, sexual orientation, gender identity or expression, age, citizenship, disability, health condition, marital or family status, veteran status, or any other characteristic protected by applicable law.

About us

We are a digital engineering and technology consulting company where expertise grows alongsidepeople. For more than 30years, we have been elevating technology: helping organizations navigate complex businesschallenges by combining deepengineering knowledge with thoughtful, research-backed innovation. Our teams work across keyareas: digitalengineering, data and analytics, Сloud, and AI/ML. In each, we deliver practical, scalablesolutions rooted in realbusiness needs and measurable human impact.

You bring your perspective and ambition. We create an environment where your work meetsclarity, confidence, andpurpose.

We offer

Work from home, from the office, or in a hybrid format that supports focus andcollaboration.

Competitive, market-based pay, benchmarked by role andlocation — plus health coverage, paid time off, wellness support, and learningopportunities.

Approachable leaders who communicate openly, keep teams close to the strategy, andsupport long-term planning.

Advanced tech communities

Stay close to AI/ML, Cloud, Quantum Computing, IoT, andRobotics communities, with projects built on modern frameworks.

More opportunities available

Browse all open positions to find the best fit for your experience.