As a Senior Back-End Developer, you will be responsible for designing and implementing scalable back-end services that support AI-driven automation. You will work with cloud-based infrastructure, integrate AI models, and develop high-performance APIs to enable seamless interactions between AI agents and business applications. Collaboration with cross-functional teams will be key to ensure the effective deployment of AI-powered solutions.
Responsibilities:
- Develop and optimize scalable back-end services and APIs using Python
- Design and implement AI-driven agents to enhance efficiency
- Work with cloud platforms (AWS preferred) to deploy and manage AI-driven applications
- Integrate AI/ML models and work with APIs such as Amazon Bedrock, OpenAI, and other open-source LLMs
- Develop secure, high-performance microservices and data pipelines
- Optimize database performance and ensure data consistency in SQL databases (e.g., PostgreSQL)
- Collaborate with Front-End and AI/ML teams to build end-to-end AI-powered solutions
- Ensure best practices in CI/CD, DevOps, and cloud infrastructure management
- Stay up to date with AI advancements and emerging back-end technologies
Requirements:
- 4+ years of back-end development experience
- Strong proficiency in Python and FastAPI
- Hands-on experience with LLMs and APIs like Amazon Bedrock, OpenAI, or open-source models, or willingness to learn
- Familiarity with RESTful APIs, GraphQL, and SQL databases (e.g., PostgreSQL)
- Proficiency in cloud platforms (e.g., AWS) and SaaS application development
- Hands-on experience with CI/CD, containerization (Docker, Kubernetes), and DevOps best practices
- Being an Agile team player with strong communication and problem-solving skills
- English level – Upper-Intermediate or higher
We offer:
- Remote-first work model with flexible working hours (we provide all equipment)
- Comfortable and fully equipped offices in Lviv and Rzeszów
- Competitive compensation with regular performance reviews
- 18 paid vacation days per year + all state holidays
- 12 days of paid sick leave per year without a medical certificate + extra paid leave for blood donation
- Medical insurance with an affordable family coverage option
- Mental health program which includes free and confidential consultations with a psychologist
- English, German, and Polish language courses
- Corporate subscription to learning platforms, regular meetups and webinars
- Friendly team that values accountability, innovation, teamwork, and customer satisfaction
- Inclusive environment where everyone feels valued and treated equally. We proudly partner with VeteranHub to support Ukrainian veterans
- We are committed to supporting Ukraine and actively participate in charity initiatives