Full-Stack AI Engineer

About Us

At Sigma Group, we build technology-driven solutions for international telecom, software, and business operations.

Our group includes Sigma Telecom and Sigma Software, working across areas such as international Voice, SMS, telecom platforms, automation systems, internal business tools, reporting, and AI-powered solutions.

We believe AI is not only a future trend, but a practical tool that can already improve how teams work, how systems operate, and how businesses make decisions. That’s why we are looking for a developer who can help us turn AI ideas into real, usable products and internal tools.

About the Role

We are looking for a Full-Stack AI Engineer to join our team and help us build smart, practical, and scalable AI-powered software solutions.

This role is not focused on training machine learning models. We are looking for someone who is already a strong full-stack developer and knows how to use modern AI tools, LLMs, coding assistants, APIs, agents, and automation platforms to build faster, smarter, and more efficient software.

You will work on internal tools, automation systems, dashboards, AI assistants, business applications, and AI-powered product features from idea to deployment.

Key Responsibilities

• Design, develop, and maintain full-stack web applications
• Build AI-powered tools, workflows, assistants, and automation systems
• Use AI development tools such as Cursor, GitHub Copilot, ChatGPT, Claude, Gemini, Lovable, Replit, or similar tools to improve development speed and quality
• Integrate AI APIs such as OpenAI, Claude, Gemini, or similar platforms into real business applications
• Develop backend services, APIs, databases, and frontend interfaces
• Build practical solutions using LLMs, AI agents, RAG systems, and structured AI workflows
• Understand business needs and turn them into working technical solutions
• Test, debug, improve, and optimize AI-powered features
• Work with third-party APIs, CRM/ERP systems, reporting tools, and automation platforms
• Research new AI tools and apply them where they create real business value
• Write clean, scalable, and maintainable code

Requirements

• Strong experience in full-stack software development
• Good knowledge of frontend technologies such as React, Next.js, Vue, or similar
• Good knowledge of backend technologies such as Node.js, Python, FastAPI, Django, Laravel, or similar
• Experience with databases such as PostgreSQL, MySQL, MongoDB, or similar
• Experience with REST APIs and third-party integrations
• Hands-on experience using AI tools in the development process
• Experience with AI APIs, LLMs, prompt engineering, or AI-assisted workflows
• Ability to build products from concept to launch
• Strong problem-solving and analytical thinking skills
• Ability to work independently and take ownership

Nice to Have

• Experience with OpenAI API, Claude API, Gemini API, LangChain, LlamaIndex, vector databases, or RAG systems
• Experience building AI agents, chatbots, automation workflows, or internal AI tools
• Experience with n8n, Make, Zapier, or similar automation platforms
• Experience with cloud platforms such as AWS, Azure, GCP, or DigitalOcean
• Experience with Docker, CI/CD, or basic DevOps practices
• Experience with CRM, ERP, finance, telecom, reporting, or business automation systems
• Interest in AI-native development and modern “vibe coding” workflows

Who We’re Looking For

We are looking for someone curious, fast-learning, practical, and solution-oriented.

You should not only be able to write code, but also understand how AI can improve business processes, automate repetitive work, and help teams work more efficiently.

The ideal candidate is someone who can quickly understand a business problem, create a prototype, test it, improve it, and turn it into a real working system.

What We Offer

• Opportunity to work on real AI-powered products, internal tools, and automation systems
• A role where you can experiment with modern AI tools and turn ideas into working solutions
• Hands-on experience with telecom, software, business operations, reporting, CRM/ERP, and automation projects
• A dynamic work environment where technology, business, and AI come together
• The chance to take ownership of projects from idea to deployment
• Space to research, test, and apply new AI tools and development approaches
• A collaborative team structure with direct communication and fast decision-making
• Opportunity to build solutions that create visible business impact
• Professional growth in AI-native software development