Backend Engineer with Python or Node.js
Ukrainian-born Travel and Hospitality Technology Consulting company, partnering with online travel agencies, travel management solution providers, and startups worldwide. With expertise across Travel Tech, Data Science, UI/UX, Business Analysis, and Software Engineering, we’ve successfully delivered over 300 projects.
Project:
We are now seeking a Backend Engineer to join one of our client projects focused on building scalable, intelligent systems that redefine customer engagement. You’ll play a key role in designing cloud-native services, integrating AI-driven APIs, and ensuring that the platform is reliable, high-performing, and ready for large-scale usage.
The team is developing a next-generation platform for customer engagement powered by generative AI. The solution enables travel and lifestyle companies to deploy intelligent, always-available digital agents that provide personalized support and seamless brand interactions at scale. By combining advanced GenAI models with a proprietary learning engine and deep integration into business systems, the platform helps brands create efficient, consistent, and meaningful conversations with their customers.
Responsibilities:
Participate in the full software development lifecycle, from planning and architecture to development, deployment, and monitoring
Design and implement backend services and microservices with Python (FastAPI) or Node.js
Build efficient queries and scalable data models in PostgreSQL, ensuring high performance under load
Develop and operate cloud-native infrastructure on AWS, leveraging services like ECS, Lambda, API Gateway, and S3
Integrate AI/ML APIs (OpenAI, AWS Bedrock, Gemini) to enable conversational features and automation
Collaborate with product managers and engineering teams to deliver impactful solutions
Contribute to architecture design sessions, code reviews, and continuous process improvements
Ensure systems are reliable, observable, and optimized for long-term maintainability
Requirements:
At least 4 years of professional experience in backend development with Python (FastAPI) or Node.js
Strong knowledge of PostgreSQL: schema design, indexing, query optimization, and advanced SQL logic
Hands-on experience designing and deploying applications on AWS (ECS, Lambda, API Gateway, S3)
Proven ability to integrate AI/ML APIs (OpenAI, AWS Bedrock, Gemini) into real-world solutions
Solid understanding of distributed systems, asynchronous processing, and designing for scalability, availability, and resilience
Experience working with event-driven architectures and message-driven workflows
Familiarity with system design trade-offs: database models, caching, consistency, modular API boundaries
Knowledge of observability tools (CloudWatch, Datadog, Sentry) and best practices for building operational visibility into systems
Strong foundation in engineering practices: unit/integration testing, CI/CD pipelines, Git workflows
Comfortable working in agile, iterative development environments with regular reviews and team discussions
Excellent communication skills and the ability to clearly document and explain technical decisions
Experience using AI coding assistants (e.g., Cursor, GitHub Copilot, or similar) in day-to-day development tasks
Would be a plus
Familiarity with travel APIs or booking platforms • Experience with prompt engineering or GenAI workflows (e.g., RAG pipelines)
Background in AI-powered product development, such as LLMs or recommendation systems in production
Knowledge of AI observability practices for monitoring model performance, latency, and drift
Experience building AI-powered solutions or integrating AI pipelines/APIs into software projects
Skills:
Python Fast API NodeJS PostgreSQL SQL AWS AI/ML APIs observability tools AI coding assistants travel APIs or booking platforms rompt engineering or GenAI workflows AI-powered product development