Senior Python Engineer, IDT

Full Stack, LLMs

Salary not provided

React

AWS

GCP

Python

Azure

Senior and Expert level

Remote from Europe, UK

Communications & payment services

Open for applications

Communications & payment services

1001+ employees

B2BPaymentsFinancial ServicesSaaSTelecommunications

Open for applications

Salary not provided

React

AWS

GCP

Python

Azure

Senior and Expert level

Remote from Europe, UK

1001+ employees

B2BPaymentsFinancial ServicesSaaSTelecommunications

Company mission

To provide innovative communications and payment services for consumers and businesses on a global scale.

Job

Company

Role

Who you are

Expert-level Python development experience in backend-heavy environments
Strong experience using LLMs via APIs and prompt engineering (e.g., OpenAI, Anthropic)
Deep understanding of cloud architecture, distributed systems, and deployment best practices
Proven skills in database design, optimization, and handling large datasets
Full-stack capability with experience in React or modern frontend frameworks
Startup or R&D mindset: independent, curious, fast-moving, and pragmatic
Excellent communication skills and fluent English (B2+ or higher)

What the job involves

Net2Phone is seeking a Senior Python Full-Stack Engineer with deep backend expertise and practical experience integrating AI into production systems
You’ll join our agile R&D team working on greenfield initiatives that harness LLMs, cloud infrastructure, and data-driven systems to build powerful new tools for real-world use
This role is not focused on building or fine-tuning custom AI/ML models. We are looking for engineers with strong backend and cloud skills who can integrate and operationalize LLMs from top providers into scalable products
Architect and develop full-stack applications powered by LLMs and modern backend services
Integrate large language models into production systems through APIs and prompt engineering
Design and manage scalable cloud infrastructure (AWS, GCP, or Azure)
Build and optimize data storage and querying for large, complex datasets
Rapidly prototype and iterate on MVPs and product concepts
Collaborate in a small, innovative R&D team with full autonomy and high impact

Our take

Founded in 1990 by serial entrepreneur Howard Jonas, IDT Corporation specializes in fintech and communications services. Over the last decades, the company has launched a portfolio of brands including IDT Global and net2phone.

IDT offers payment and communication services to businesses and consumers alike. It now boasts a turnover of over $1 billion a year, which is testament to its industry impact.

The company has benefited massively from its agility and its ability to evolve alongside technology. For example, it acquired Leaf Global, signalling a new move into the world of Web 3.0. This indicates a notable and timely shift in strategy for the company.