Chennai, India Hybrid

Senior Java Developer



Ciklum is looking for a Senior Java Developer to join our team full-time in India.

We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.

About the role

As a Senior Java Developer, become a part of a cross-functional development team engineering experiences of tomorrow. You will develop streamlining software for the cloud-based telecom components.


  • Design, build, test, and manage components for traffic charging, billing management (Java, Go)
  • Develop APIs and real-time data processing applications, emphasizing scalability and reliability, utilizing the Apache Kafka ecosystem for streaming technologies
  • Develop the mentioned functions or components (PGW, PCRF, IMS) for deployment on AWS, employing containers, serverless functions (Lambda), and streaming technologies (Kafka Streams, Kafka Connect, and more)


  • Experience working in Telco domain and understanding Telcom 4G/5G Core Network architecture and components: HSS, MME, SGW, PGW, PCRF/ PCEF, IMS
  • Experience in developing Packet core function for Telco traffic routing, charging, rating, billing
  • Understanding of network concepts such as IP addresses, VPNs, coupled with a genuine passion for IoT, Telecom product, Protocols (Diameter protocol)
  • Competent with Kubernetes and AWS or another cloud provider
  • Experience in High Availability, Disaster Recovery, and managing High-Load systems
  • Build, test, if possible design and manage components for traffic charging, billing management

Personal skills

  • Communication is a key. You speak and write in English fluently or at least at upper-intermediate level


  • Following the “said and done” principle
  • Accountability for the own scope of work


  • Proactive in efforts to deliver results according to the expectations
  • Suggesting new ideas, looking for alternative solutions

Self – development:

  • Eager to learn and grow: curios, keen to constant self-development
  • Constantly improving own mastership

Effective communication:

  • Ability to express ideas, thoughts and questions simply, concisely and in a structured way


  • Capability to assess tasks of less experienced colleagues
  • Skilled in constructive feedback providing

What's in it for you

  • Care: your mental and physical health is our priority. We ensure comprehensive company-paid medical insurance, as well as financial and legal consultation
  • Tailored education path: boost your skills and knowledge with our regular internal events (meetups, conferences, workshops), Udemy licence, language courses and company-paid certifications
  • Growth environment: share your experience and level up your expertise with a community of skilled professionals, locally and globally
  • Flexibility: hybrid work mode at Chennai or Pune 
  • Opportunities: we value our specialists and always find the best options for them. Our Resourcing Team helps change a project if needed to help you grow, excel professionally and fulfil your potential
  • Global impact: work on large-scale projects that redefine industries with international and fast-growing clients
  • Welcoming environment: feel empowered with a friendly team, open-door policy, informal atmosphere within the company and regular team-building events

About us:

India is a strategic growth market for Ciklum.
Be a part of a big story created right now. Lets grow our delivery center in India together! Boost your skills and knowledge: create and innovate with like-minded professionals — all of that within a global company with a local spirit and start-up soul. 
Supported by Recognize Partners and expanding globally, we will engineer the experiences of tomorrow!

Be bold, not bored!

Experiences of tomorrow. Engineered together

Interested already?

We would love to get to know you! Submit your application. Can’t wait to see you at Ciklum.


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