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Lead Java (with C) Developer

Role overview

Qualifications

  • 7+ years of production experience with large-scale deployments
  • Strong hands-on experience with Java
  • Hands-on experience with C
  • Experience with CI/CD, clouds, Linux & networking

Responsibilities

  • Collaborate with business stakeholders and actively participate in product planning and sprint backlog meetings
  • Take responsibility for the full software development lifecycle
  • Develop and maintain technical design, architecture, and troubleshooting documentation
  • Analyze and interpret stack traces, crashes, memory issues, and performance bottlenecks

Key facts

Hard skills

Other skills

  • Problem Solving
  • Self-Motivation
  • Accountability

About the company

IDT Corporation logo

IDT Corporation

  • Telecom Operators & ISPs
  • Large
  • 1,001–5,000
We know that you’ll have looked at quite a few company pages but IDT is different. We want people who want to make a big difference to our company with big ambitions. We’re a truly global team, with 1300 people working across all continents, apart from (at the moment!) Antarctica. But we are proud that despite our size, we encourage and support any in-house entrepreneurs to develop their ideas into business action. Our exciting growth plans make it a great time to join us. Our people are the reason for IDT’s passion for success. The IDT family is made up of people of all backgrounds, expertise, and interests, all with a relentless team spirit. We need people who share both our commitment to success and excitement about our journey. You won’t ever be bored or have to wonder how to fill your time. You’ll find the work challenging but you’ll get the support of a great team to help you beat those challenges. You will also be expected to support others as well as work hard, work well and work with a smile. If you want a join a company that will help you become your brilliant best and achieve amazing results, then you want to join IDT.

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Job description

We’re looking for a Lead Java Developer with C background to help us build and scale a cloud PBX solution.

We expect you to have strong problem-solving skills, be self-motivated, initiative, and responsible.

Your daily duties will include implementing different SIP proxy features using Java/C , with respect to high availability and scalability.


Responsibilities:
  • Collaborate with business stakeholders and actively participate in product planning and sprint backlog meetings.
  • Take responsibility for the full software development lifecycle, from understanding business requirements through coding, deployment, and maintenance.
  • Develop and maintain technical design, architecture, and troubleshooting documentation.
  • Demonstrate a technology-agnostic mindset and continuously explore new technologies and approaches.
  • Analyze and interpret stack traces, crashes, memory issues, and performance bottlenecks.
  • Implement patches, backports, or enhancements directly in Asterisk source code.
  • Develop custom modules (C), when needed.
  • Work with Linux systems (systemd, networking, tuning, kernel parameters).
  • Work with cloud environments (GCP preferred).
  • Participate in architecture decisions.
  • Design and implement Asterisk dialplans.

  • Requirements:
  • Have at least 7+ years of production experience with large-scale deployments.
  • Strong hands-on experience with Java.
  • Hands-on experience with C.
  • Have experience with CI/CD, clouds, Linux & networking.
  • Experience with CI/CD tools such as GitHub Actions, Jenkins, ArgoCD, and Maven.
  • Proficiency with relational databases, particularly MySQL, including schema design, migrations, and query optimization.
  • Have a good level of English (B2 or higher).
  • You are ready to act as the technical lead.
  • Can work cross-team with backend developers, infra/DevOps, QA, and product owners.
  • Own best practices, code quality, and documentation.

  • We are pleased to offer:
  • Remote work as b2b contractor or on-site/hybrid employment (Belarus-Moldova) work opportunity!
  • Stable job with long-term growth perspective.
  • Competitive salary with annual performance review.
  • Really good hardware.
  • An exciting and challenging job with talented people around.
  • Continuous learning and career growth opportunities.
  • Compensation for professional training, seminars, and conferences.
  • Referral program – get rewarded for helping us grow the team with talented people.
  • Company-supported English classes to enhance your professional growth.
  • More perks for the Minsk and Chisinau office employees.
  • A few words about us:   IDT Corporation is a global communications company founded in 1990 and headquartered in Newark, New Jersey. We are industry leaders in prepaid communication and payment services and one of the largest international voice carriers. We are listed on the NYSE, employ over 1800 people across 20 countries, and have over $1.5 billion in revenues.    We are not ”another big IT corporation”— we encourage and support in-house entrepreneurs in developing their ideas into business actions.   Net2Phone is a rapidly growing global provider of unified cloud communications solutions. It solves the problem of cost optimization for businesses in more than 50 countries, providing them with high-quality VoIP services. Net2Phone provides businesses with an integrated communications suite featuring powerful collaboration tools such as voice, messaging, chat, and unlimited domestic and international calling to 23+ countries.  The product was named ‘VoIP Supplier of the Year’ by the Telecom Consulting Group in 2018.  

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