Staff Java Engineer
Technology
Berlin, Germany
Welcome to 1GLOBAL, a dynamic and innovative force in the intersection of telecommunications and technology. Founded by two visionary technology entrepreneurs, Hakan Koç and Pyrros Koussios, 1GLOBAL is a privately owned company with a clear mission to connect the world, seamlessly. With over 100 million dollars in revenue and being both profitable and cash generative, 1GLOBAL has the ability to fund its massive growth without relying on external funding.
As a global specialty telecommunications provider, 1GLOBAL serves financial institutions, enterprises, mobile network operators, and consumers across 42 countries, offering fully regulated voice, data, and SMS services. As pioneers in the eSIM revolution, we’ve built a complete ecosystem that drives our growth with partners such as Apple, Palo Alto Networks and Google, while attracting customers like Goldman Sachs, JP Morgan, Revolut, Netflix and Tesla.
Join us at 1GLOBAL and be part of that journey of massive growth, while forming the future of the global communication industry!
The Role
We’re seeking an accomplished and forward-thinking Java engineer to join our Remote Sim Provisioning team and drive Java development across the entire organization. You will build transformative solutions for the world of telecommunications, serving major mobile network operators and eSIM chip manufacturers. Your contributions will be vital in creating an environment that values excellence, continuous learning, and collaboration. As the key technical savvy of our Java engineering group, you will play an instrumental role in defining, implementing, and maintaining the standards, practices, and architectural direction for Java development.
Key Responsibilities
In the team:
- Lead the development of high-impact features and architect solutions with a focus on resiliency, scalability, security, and fault tolerance.
- Act as a technical authority, advocating for high standards in code quality, readability, and testing coverage across the team.
- Implement the necessary procedures and metrics for an effective monitoring of the platform.
- Assist the roadmap management with quality estimates promoting an effective management of expectations.
- Take ownership of end-to-end solutions, ensuring they are fully optimized and high performant.
- Deliver comprehensive and detailed documentation for all solutions and workflows.
In the organisation:
- Lead the hiring process for Java engineers, from CV review through to final interviews.
- Design, develop, and maintain common libraries, tools, and reusable code solutions in collaboration with other Java engineers, promoting efficiency and consistency in our engineering practices.
- Collaborate with product owners to define MVPs, assisting in problem-solving and technical feasibility assessments during project planning.
- Suggest new approaches to existing solutions, driving innovation and continuous improvement.
Requirements
Qualifications:
- 8+ years of hands-on experience in Java application development.
- Strong expertise in relational databases.
- Advanced proficiency in REST APIs, both in designing interfaces and in consumption.
- Experience with unit, integration, and end-to-end testing.
- Robust knowledge of CI/CD pipelines, Git, Docker, and Kubernetes.
- Solid understanding of cloud services (AWS, GCP, Oracle Cloud, Azure) and scalable infrastructure.
- Expertise in designing architectures that handle high volumes of data and users, ensuring scalability and performance across distributed systems.
- Excellent communication skills in English (both written and spoken), paired with a proactive, self-driven mindset.
Benefits
Why 1GLOBAL?
- Growth Opportunities: Advance your career in one of the fastest growing telecommunications companies, expanding over 40% year-on-year under the leadership of successful tech entrepreneurs.
- Major Transaction Exposure: Be in the driver’s seat for transactions that will have an impact on the future telco industry.
- Work with a Talented Team: From the Board and the Founders to the Senior Management Team, you will collaborate daily with the most capable and renowned external advisors, and constantly being exposed to talented and driven individuals.
- Dynamic Work Environment: Thrive in a collaborative, fast-paced workplace where innovation is encouraged, and every contribution counts.
- Professional Development: Work alongside industry experts to enhance your skills and knowledge in a cutting-edge field.
- International Experience: Gain opportunities to work in different 1GLOBAL offices around the world as you grow within the company.
- Open Communication Culture: Join a team where your ideas are heard, and open dialogue is encouraged, fostering a supportive and transparent work environment.
- Get Things Done Attitude: Be part of a results-driven team that values efficiency, creativity, and the drive to make a tangible impact in the industry.
1GLOBAL is an equal opportunity employer, we value your character as much as your talent. Diversity drives our innovation, and we offer a collaborative, dynamic, and international work environment. We are excited for you to join our mission to revolutionise connectivity globally.