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About the Role: BOSS Revolution helps millions of people around the world stay connected with family and friends through international calling, mobile top-up, and money services. As a Senior Flutter Developer on the DTC Calling team you'll build and evolve the flagship BOSS Revolution app. Your main direction is Product-Led Growth (PLG): the referral program (Refer-a-Friend), onboarding and activation funnels, promo and reward mechanics (loyalty and subscription offers, first-transfer and recharge bonuses, upsell offers), and the experiments that decide which of them ship. It is the main direction, not the only one: you'll take on any work the team owns — home, calling, money-transfer and top-up flows, subscriptions and payments — as the roadmap requires. You'll work in one of the largest Flutter codebases in production — a monorepo of 100+ internal packages, feature-first clean architecture, and a strong engineering culture around code quality, testing, and automation — and ship in short, instrumented iterations: hypothesis → flag → variant → metric → decision. The app also carries a native calling stack (SIP/VoIP on Android and iOS); experience there is welcome, not required.

Our company, National Retail Solutions (NRS), currently a wholly owned subsidiary of IDT Corporation, is revolutionizing the independent retail industry by providing them with cost-effective, state of the art point of sale systems and complementary services such as apps for store management and consumer ordering, web store front for the store, and loyalty programs allowing small retailers to more effectively compete with the larger store chains and online merchants. We have over 26 thousand POS units deployed across the US at this time. Our development team is in search of a Senior Full-Stack Software Engineer position to enhance our POS ecosystem for a new target market. The ideal candidate possesses a can-do attitude, thrives in a fast-paced work environment and is highly motivated to deliver software to production.

We’re looking for a Lead Java Developerwith 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.

About the RoleWe are looking for an experienced Lead QA Engineer with strong VoIP and SIP stack expertise to join our Net2Phone UCaaS platform team. This role focuses primarily on manual testing, microservices/API validation, requirements testing alongside Product Owners, and establishing team-wide release guidelines. While the core day-to-day focus is manual execution and release orchestration, exposure to performance testing tools, build management, or Java test automation is a plus.

We are looking for a Senior Android Engineer based in Minsk to join our distributed engineering team. You will work across product and infrastructure, building features for our POS platform while owning the Android device management layer that supports and manages our hardware in the field. You will use AI tools every day as part of how you write, test, and review code. You will work closely with engineers, product managers, QA, and designers across Minsk, Israel, and the U.S. This role requires 4 days a week in our Minsk office to collaborate with the engineering team, and remote collaboration with the larger team in Israel and the U.S. Primary location - Minsk, Belarus!

We are looking for a Senior Java Software Engineer to join our team! You will work with engineering teams across Europe and the USA on one of our flagship products – Net2Phone Cloud Contact Center, a rapidly growing cloud communications platform serving businesses worldwide.

IDT (www.idt.net) is a communications and financial services company founded in 1990 and headquartered in New Jersey, US. Today it is an industry leader in prepaid communication and payment services and one of the world’s largest international voice carriers. We are listed on the NYSE, employ over 1800 people across 20+ countries, and have revenues in excess of $1.5 billion. We are looking for a skilled Senior Data Engineer (with AI/ML exposure) to join our BI team and take an active role in designing, building, and maintaining the end-to-end data pipeline, architecture and design that powers our warehouse, LLM-driven applications, and AI-based BI. If you're looking for a company that will give you the maximum flexibility in choosing a location to work, this opportunity is for you! * The interview process will be conducted in English.

This is a full-time opportunity for a star Data/ML Engineer from LATAM. In-person verification will be conducted. 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. IDT is not ”another big IT corporation”— we encourage and support in-house entrepreneurs in developing their ideas into business actions. Our flagship brand, BOSS Revolution, offers Money Transfer, International Calling, and Mobile Top-Up services and supports IDT’s mission of enabling people to keep in touch and share resources with family and friends worldwide. We are looking for a skilled Data/ML Engineer to join our BI team and take an active role in designing, building, and maintaining the end-to-end data pipeline, architecture and design that powers our warehouse, LLM-driven applications, and AI-based BI. If you're looking for a company that will give you the maximum flexibility in choosing a location to work, this opportunity is for you!