Team Leader / Software Architect (Python, FastAPI, AI Integration)

TL;DR

Team Leader / Software Architect (Python, FastAPI, AI Integration): Design and develop complex software systems from scratch, design project-wide technical solutions as well as establish and control the best development practices with an accent on AI integration. Focus on evaluating and selecting appropriate AI models based on functional and business needs and driving best practices in API design, cloud deployment, security, and DevOps automation.

Location: Bulgaria, Georgia, Kazakhstan, Poland, Serbia, Ukraine, Uzbekistan

Company

hirify.global is an outsourcing company working with clients such as PayPal, Wargaming, Xerox, Philips, Adidas and Toyota.

What you will do

• Lead the design and development of robust backend systems using FastAPI.
• Define and maintain the technical architecture, ensuring scalability, performance, and maintainability.
• Evaluate, select, and integrate AI models and APIs that best fit project requirements (e.g., LLMs, vision, NLP, or recommendation models).
• Supervise and mentor a team of developers, setting coding standards and conducting technical reviews.
• Collaborate AI providers and product teams to ensure smooth integration of intelligent features.
• Drive best practices in API design, cloud deployment, security, and DevOps automation.

Requirements

• Expert-level Python development (5+ years).
• Deep experience with FastAPI (async programming, dependency injection, background tasks, middleware).
• Strong understanding of RESTful API and OpenAPI standards.
• Proven experience integrating external AI models and APIs (e.g., OpenAI, Anthropic, Hugging Face, Cohere, Google Gemini, etc.).
• Experience designing modular, scalable backend architectures.
• 3+ years of experience leading software teams or technical projects.

Nice to have

• Hands-on experience integrating multiple AI vendors’ APIs (e.g., OpenAI, Hugging Face, Replicate).
• Experience with AI-based applications such as chatbots, document analyzers, or recommendation systems.
• Contributions to open-source Python/FastAPI or AI integration projects.

Culture & Benefits

• Competitive compensation that depends on your qualification and skills.
• Flexible working hours aligned to your schedule.
• Options to work remotely.
• Corporate medical insurance covering services of private and public medical centers.
• Internal conferences, workshops and meetups for learning and experience sharing.
• 5 days of paid sick leave per year with no obligation to submit a sick-leave certificate.