Intermediate Java Developer (all genders)

Hubject GmbH; Berlin; Vor Ort; EUR 80.000 - 110.000; Vollzeit

Benefits dieser Stelle

Food subsidy

BVG subsidy

Urban sports membership

Laptop

Udemy access

Training budget

Voiio membership

Flexible working time

Zusammenfassung

Hubject GmbH is seeking a Java Developer to design, develop and maintain scalable Java-based applications powering the eRoaming platform and charging services for international clients. The role focuses on architecture, delivery, monitoring, and support to ensure operational stability.

The position is a 2-year contract with hybrid work: 2 days in the office per week at Euref Campus, Berlin, and 3 days remote. Strong English required; on-site in Berlin.

Qualifikationen

• At least 4+ years of professional Java development experience.
• Strong knowledge of Java, Spring/Spring Boot, RESTful APIs, relational databases and microservice architectures.
• Experience with cloud-native development on AWS (EC2, S3, Lambda, RDS).
• Experience with automated testing and modern DevOps practices (JUnit, Mockito) and CI/CD pipelines.
• Secure coding practices, OWASP, authentication/authorization, and data protection.

Aufgaben

• Design, develop, and maintain robust, scalable Java-based applications and microservices for global automotive and eMobility sectors.
• Write clean, secure, well-tested, and maintainable code following best practices and design patterns.
• Take full ownership of features from development through delivery.
• Participate in code reviews, technical design discussions, and architecture decisions.
• Ensure reliability and performance of global systems; monitor, optimize, and patch production issues.
• Support operational excellence through proactive monitoring, incident response, and root-cause analysis.
• Contribute with an entrepreneurial mindset and strong teamwork to deliver exceptional user experiences.

Kenntnisse

Java

Spring/Spring Boot

RESTful APIs

Databases

Microservices

AWS

Testing (JUnit/Mockito)

CI/CD

Security & OWASP

Collaboration & Communication

Tools

AWS

Jobbeschreibung

Your challenge

In the role of Java Developer, (all genders)at Hubject, you will design, develop, and maintain software solutions that power Hubject's eRoaming platform and charging services for our international clients, contributing hands-on to the architecture and delivery of scalable, high-performance backend systems, while also ensuring their ongoing operational stability through ongoing monitoring, maintenance, and support.

Please note that due to planning reasons, this role is currently limited to a 2-year-contract.

Why Hubject

We develop ideas and deliver solutions for the eMobility market

We are working on the most important growth topics

We are an international team of very motivated eMobility enthusiasts

• AND
• We have over 30 benefits different categories:
• Food & drinks (food subsidy on the Euref-Campus restaurants)
• Mobility (BVG subsidy)
• Health & sports (Urban sports membership M)
• Equipment (Laptop etc)
• Learning and development (yearly training budget and Udemy learning platform access)
• Hubject Lifestyle (Voiio membership)
• Family-friendly environment (flex working time)

Your Tasks

• Design, develop, and maintain robust, scalable Java-based applications and microservices for the global automotive and eMobility sector.
• Write clean, secure, well-tested, and maintainable code following software engineering best practices and design patterns.
• Take full ownership of features and components, driving their implementation independently from development through delivery.
• Participate in code reviews, technical design discussions, and architecture decisions to ensure high-quality, scalable solutions.
• Ensure the reliability, performance, and timely delivery of global systems while continuously improving existing applications through monitoring, optimization, updates, security patches, and troubleshooting production issues.
• Support operational excellence through proactive monitoring, incident response, and root-cause analysis to maintain platform stability.
• Contribute to the team's success with an entrepreneurial mindset, flexibility in solving technical challenges, and a strong commitment to delivering exceptional user experiences.

Your Profile

• You have at least 4+ years of professional experience in Java development, with a strong track record of building and maintaining complex, scalable software systems.
• Solid knowledge of Java, Spring/Spring Boot, RESTful APIs, relational databases, and microservice architectures, along with experience in cloud-native development on AWS (e.g., EC2, S3, Lambda, RDS).
• Experience with automated testing and modern DevOps practices, including unit, integration, and end-to-end testing (e.g., JUnit, Mockito) as well as CI/CD pipelines.
• Good understanding of secure coding practices and application security principles, including OWASP, authentication/authorization, and data protection.
• Strong collaboration and communication skills, with the ability to work effectively in cross-functional, matrix organizations and partner closely with product and business stakeholders.
• A goal-oriented, structured, and detail-focused mindset, with a strong sense of ownership and a passion for teamwork.
• Openness to international collaboration, new technologies, and eMobility, with knowledge of protocols such as OCPI, OCPP, or OICP considered a strong plus.

Language

Company language is English (fluent skills required)

Start date

as soon as possible

Location

Onsite in Berlin

Hybrid system

• 2 days per week at the office, 3 days remote
• EUREF Campus in Schöneberg in Berlin - Europe\'s hotspot for green technology and eMobility

About us

Hubject is the market and innovation leader in the eMobility sector. Together with our team, we develop ideas and deliver solutions for the eMobility market. This will become the most important growth topic worldwide in the coming years.

Our vision becomes our mission: We accelerate the EV ecosystem towards a sustainable mobility future.

Our Values are:

• We are Curious
• We are Ambitious
• We are Accountable
• We are Inclusive

These four core values shape our collective identity and guide us as we navigate challenges, pursue growth, and make a positive impact in our industry and beyond. We are curious. We are ambitious. We are accountable. We are inclusive.

At Hubject, we are dedicated to building a diverse and inclusive workforce. We welcome candidates of all backgrounds and experiences.

More about us

Hubjectsimplifies the charging of electric vehicles. Through itseRoamingplatform, calledintercharge, theeMobilityspecialist connects Charge Point Operators or CPOs andeMobilityService Providers or EMPs, thus providingstandardizedaccess to charging infrastructure regardless of any network.

With over one Million connected charging points and more than 2250 B2B partners across 63 countries and four continents,Hubjecthas established the world’s largest cross-provider charging network for electric vehicles by connecting CPO networks. In addition,Hubjectis a trusted consulting partner in theeMobilitymarket, advising automotive manufacturers, charging providers and other EV-related businesses looking to launcheMobilityservices or implementPlug&Chargeusing ISO 15118.In essence,HubjectpromoteseMobilityand its advancement worldwide.

Founded in 2012,Hubjectis a joint venture of the BMW Group, Bosch,EnBW, Enel X,Mercedes-Benz,E.on, Siemens, and the Volkswagen Group.Hubject’sheadquartersis located inBerlin, with subsidiaries in Los Angeles and Shanghai.