Senior Golang Developer (Python, React)

Net2phone is looking for an experienced Senior Golang Software Engineer to join our AI Team and help build the next generation of intelligent automation products. This role will focus on developing and scaling our AI Agent platform, which powers advanced conversational experiences across voice, chat, and business workflow automation.

Our AI Agent solution integrates with leading AI providers, enterprise systems, knowledge bases, and custom tools to deliver real-time assistance for customer service, sales, and operational use cases. The platform supports multi-tenant environments, high availability, and rapid innovation as AI capabilities continue to evolve.

We are looking for a hands-on engineer who is passionate about backend architecture, distributed systems, and applied AI. In this role, you will help design and expand core platform functionality, build scalable APIs and services in Go, integrate with LLM and speech technologies, improve reliability and performance, and lead technical initiatives that shape the future of our AI products.

What you'll do:

• Lead the design and delivery of new platform capabilities, services, and enhancements for our AI Agent product.
• Take ownership of the full software development lifecycle—from requirements analysis and technical design through implementation, deployment, observability, and long-term maintenance.
• Architect and build high-performance, scalable, resilient backend systems and APIs using Go Programming Language and modern cloud-native practices.
• Partner closely with product managers, business stakeholders, and cross-functional engineering teams to translate business goals into robust technical solutions.
• Mentor other engineers through code reviews, technical guidance, and best-practice leadership while raising overall engineering standards.
• Drive continuous improvement in system reliability, performance, security, and developer productivity.
• Lead initiatives to reduce technical debt, modernize legacy components, and improve platform maintainability.
• Evaluate and adopt new technologies—including AI, automation, and infrastructure tooling—where they create measurable business value.

What you'll need to succeed:

• Proven experience as a Senior Software Engineer, delivering complex backend or platform solutions in production environments.
• Deep knowledge of the Go Programming Language ecosystem, including concurrency, performance tuning, and service design.
• 5+ years of professional software engineering experience, with 2+ years of hands-on production experience in Go and/or other modern backend languages.
• Practical experience building or integrating AI-powered applications, including APIs based on OpenAI, Anthropic, or similar LLM platforms.
• Familiarity with concepts such as prompt engineering, retrieval-augmented generation (RAG), function/tool calling, conversation orchestration, and model evaluation.
• Strong understanding of software architecture, design patterns, and best practices, with a track record of applying them to scalable systems.
• Experience designing, building, and maintaining distributed systems and microservices architectures.
• Experience developing systems that require high availability, observability, security, and strong operational excellence.
• Experience with MongoDB or other NoSQL databases.
• Hands-on experience with Amazon Web Services and cloud-native infrastructure patterns.
• Working knowledge of containers and developer tooling, including Docker, Git, and CI/CD pipelines.
• Strong communication skills, a collaborative mindset, and experience working with cross-functional teams.
• Good level of English (B2 or higher).

It would be a plus:

• Experience working directly with users, product owners, and stakeholders to gather requirements and translate business needs into technical solutions.
• Experience with infrastructure as code and deployment automation, including Amazon Web Services CDK, Terraform, or similar tooling.
• Working knowledge of frontend development using JavaScript, HTML, CSS, and React.
• Proficiency in Python for automation, scripting, data processing, AI integrations, or rapid prototyping.
• Experience using modern AI-assisted engineering tools such as Cursor, Anthropic Claude Code, GitHub Copilot, or similar developer productivity platforms.
• Familiarity with CI/CD pipelines, developer workflows, and engineering practices that accelerate high-quality software delivery.

What we offer:

Remote work as b2b contractor or hybrid/ Remote full-time in Belarus.
Really good hardware.
An exciting and challenging job with talented people around.
Great learning and growth opportunities.
Compensation for professional training, seminars, and conferences.
First-class English lessons.
More perks for the Minsk office full-time employees.

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.