Senior Full Stack Developer – Python & Angular

At neXa, we’re not just building digital solutions — we’re helping businesses grow smarter. We work with forward-thinking clients across industries to design, build, and implement technology that makes a real difference. From intelligent automation to custom applications, our projects are as diverse as our team.

We’re looking for a Senior Full Stack Developer to join an AI-focused product team building applications that support teachers and students in improving learning outcomes. The role is backend-leaning full stack, with a strong emphasis on Python-based services and APIs, complemented by Angular work on the frontend within an existing production-grade system.

You will contribute to features across the full delivery lifecycle—from backend design and implementation through API integration, database work, and frontend enhancements. The environment is product-oriented, collaborative, and centered around delivering reliable AI-enabled capabilities to real users in education.

The position is 100% remote (Poland) with occasional travel (onboarding and workshops) and a B2B contract model.

Responsibilities:

• Design, develop, and maintain backend services using Python and FastAPI

• Build and maintain REST APIs and service interfaces for product features

• Implement data models and database changes in PostgreSQL and NoSQL systems

• Develop and maintain database migrations and schema evolution processes

• Integrate backend systems with internal services and external APIs

• Work with asynchronous processing patterns including queues and background jobs

• Develop Angular frontend features aligned with existing application architecture

• Contribute to AI-powered features by integrating external AI APIs and services

• Write and maintain automated tests across backend and frontend components

• Participate in code reviews and ensure high code quality standards

• Improve observability through logging, monitoring, and debugging of production issues

• Optimize backend performance, database queries, and application responsiveness

• Collaborate with Product and Design teams to refine requirements and deliver solutions

• Contribute to CI/CD processes and deployment workflows

• Support reliability, scalability, and maintainability of the application

Requirements:

• Strong experience in backend development using Python

• Hands-on experience with FastAPI or similar API frameworks

• Experience designing and implementing REST APIs or equivalent services

• Strong knowledge of PostgreSQL or similar relational databases

• Experience with database modelling, schema design, and migrations

• Experience with NoSQL databases

• Experience working with Git, code reviews, and CI/CD pipelines

• Experience with automated testing (unit and integration testing)

• Experience with asynchronous processing, queues, or event-driven architectures

• Ability to develop Angular features within an existing codebase and established patterns

• Understanding of observability practices (logging, monitoring, debugging)

• Performance awareness for backend services and data-driven applications

• Ability to deliver end-to-end features in an existing product environment

• Strong collaboration skills with Product, Design, and Engineering teams

• Comfortable working in Agile environments

• Professional proficiency in English

Nice to have:

• Experience integrating AI APIs or building AI-enabled features

• Interest in AI product development and LLM-based systems

• Experience with Kubernetes or containerized environments

• Knowledge of cloud platforms and deployment practices

• Security and data privacy awareness in application design

• Accessibility awareness for frontend development

• Experience working with production-grade distributed systems