Senior Full Stack Engineer (Python / React)

Tbilisi, Varna, Ruse, Burgas, Colombo
Level: Experienced
Unit: Software Development & Cloud
Employment type: Permanent

About Us

 

At Flat Rock Technology, we build the future!

 

Whether it’s helping clients grow their teams through staff augmentation, developing software that scales businesses, protecting companies from cyber threats, or managing large operational teams as an extension of each of our wonderful customers, we’re there to empower growth and drive impact.

 

With offices across the Globe: UK, Europe, South America, Sri Lanka, and the US, we’re a fast-growing global tech and staff augmentation organization delivering cutting-edge software development, data services, and business process outsourcing to clients worldwide.

 

We believe in innovation, ownership, and growing & developing our people. Your ideas matter here and your work truly makes a difference. Whether we're engineering powerful software, optimizing operations, or helping customers scale, we move fast, stay curious, and build with purpose.

 

Join a team that’s collaborative, ambitious, and always pushing for better. 

 

At Flat Rock, we don’t just follow the future - we create it.

 

Main responsibilities:

  • Design and develop scalable backend services and RESTful APIs
  • Build and maintain modern full-stack applications using Python and React
  • Design and integrate AI-powered features including LLM integrations, machine learning models, and RAG-based architectures with vector search capabilities
  • Work with vector databases and AI orchestration frameworks such as LangChain
  • Design efficient data models and optimize database performance
  • Architect and maintain microservices-based systems
  • Lead integrations with third-party platforms through APIs, data pipelines, and automation workflows
  • Develop data analytics and predictive processing components
  • Implement automation pipelines and workflow orchestration
  • Ensure high performance, scalability, reliability, and security of systems
  • Write unit tests, integration tests, and maintain testing coverage
  • Participate in system design discussions, code reviews, and architecture planning
  • Contribute to architectural decisions and mentor other engineers where needed

Requirements:

  • Higher education in Computer Science, Software Engineering, or a related field
  • 6+ years of full-stack software development experience building and maintaining production-grade web applications
  • Strong proficiency in Python and backend frameworks such as Django or FastAPI
  • Experience with PostgreSQL, database design and data modeling
  • Strong experience with React.js / Typescript and modern frontend development (experience with Vue.js or Angular is a plus)
  • Experience with cloud platforms, particularly AWS or GCP services
  • Solid understanding of RESTful APIs, microservices, and system architecture
  • Familiarity with CI/CD pipelines
  • Experience with containerized applications (Docker, Kubernetes)
  • Fluent English and proven experience working in agile and distributed teams
  • Excellent communication and problem-solving skills

Nice to Have
  • Experience with vector databases such as Pinecone, Weaviate, Milvus, or pgvector
  • Experience building RAG-based AI systems
  • Experience with LangChain, LlamaIndex, or similar AI orchestration frameworks
  • Experience with workflow automation platforms such as n8n, Make, or Airflow
  • Experience with data analytics, BI platforms, or large-scale data processing
  • Experience working on AI-enabled products or intelligent automation systems

What we offer in return:

  • Competitive salary packages plus a range of region-specific benefits
  • Clear career paths and opportunities for continuous professional development
  • Exciting, meaningful work within a fast-growing international organisation
  • Modern office spaces across the globe
  • A vibrant company culture with regular team events and social activities
  • Entertainment zones, team-building programmes, and local cultural celebrations
  • Hybrid working options – enjoy the flexibility of working from home and the office
  • Additional holiday days added the longer you’re with Flat Rock

Privacy statement

If that sounds just like you, apply now by sending your CV in English!

By submitting your application, you agree that FRT will use your personal data for recruitment purposes only. All documents will be treated in the strictest confidentiality.
Only short-listed candidates will be invited for an interview.

We can’t wait to meet you!

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What's Next

What Awaits You At Flat Rock

Looking for a trusted development partner?

Our team is ready to discuss and offer the most suitable approach for bringing your ideas to market, along with feasible solution alternatives.