Telna provides Mobile Network Operators (MNOs), Communication Service Providers (CSPs), and Original Equipment Manufacturers (OEMs) with a fully managed global cellular connectivity platform. With access to the largest 2G–5G and LTE-M coverage from over 800 radio network operators—300 of which are direct partners—across 200 countries, Telna empowers seamless, high-performance connectivity worldwide.

Our global multi-network connectivity platform simplifies integration, offering localized break-out capabilities via cloud infrastructure. With a single integration into Telna’s platform, millions of devices are powered by resilient, multi-network connectivity—enabling a wide array of innovative cloud-based solutions.

Position Summary: Java Developer

We are seeking a motivated and enthusiastic Java Developer to join our development team and contribute to the design and implementation of OSS/BSS and telecom billing systems. This is an excellent opportunity for an early-career developer to gain valuable experience in a highly technical and innovative telecommunications environment.

In this role, you will work closely with senior engineers, product managers, and QA teams to build and enhance components that support our SIM, router, mobile connectivity, and IoT platforms. You’ll receive mentorship and support to help you grow your technical skills and deepen your understanding of telecom infrastructure.

The ideal candidate has foundational Java programming skills, a desire to learn about OSS/BSS/Telco systems, and a passion for building efficient and scalable applications. Exposure to additional programming languages such as Python, Go, or JavaScript is considered a plus.

Key Responsibilities

Assist in the development and maintenance of Java-based applications for OSS/BSS and billing systems
Work with senior developers and technical leads to understand system requirements and translate them into working code
Contribute to the development of microservices and RESTful APIs
Participate in integrating third-party systems such as CRM, ERP, and network management tools
Support application optimization efforts for performance and reliability
Take part in code reviews and learn from experienced team members
Write unit tests and support quality assurance initiatives
Help document technical components and processes
Stay current with new technologies and contribute to innovation within the team

Required Qualifications

3+ years of experience in Java development.
Familiarity with object-oriented programming, design principles, and basic software architecture concepts
Exposure to OSS/BSS platforms or interest in telecom systems is a plus
Understanding of RESTful API development fundamentals
Experience with relational or NoSQL databases (e.g., PostgreSQL, MySQL, MongoDB)
Basic knowledge of version control tools like Git
Willingness to learn tools such as Maven, Jenkins, Docker, or Kubernetes

Preferred Qualifications

Experience with other programming languages such as Python, Go, JavaScript, or Node.js
Interest in cloud platforms (e.g., AWS, Azure, GCP)
Exposure to CI/CD pipelines and DevOps tools is a plus
Familiarity with Agile or Scrum development environments
Interest in security and data privacy best practices

Why Join Us

Contribute to the advancement of cutting-edge telecom technologies and infrastructure
Collaborate with a diverse, experienced, and multicultural team of engineers and industry professionals
Enjoy a flexible work environment with remote work options
Receive a competitive salary and comprehensive benefits package
Grow your career through professional development opportunities and technical training