We’re looking for a Senior/Lead Java Developer with C background to help us build and scale a cloud PBX solution based on Asterisk.
The team is building a cloud PBX solution based on Asterisk. 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 and Asterisk 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:
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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