Expert Application Development

Why SoftwareOne?

SoftwareOne and Crayon have come together to form a global, AI-powered software and cloud solutions provider with a bold vision for the future. With a footprint in over 70 countries and a diverse team of 13,000+ professionals, we offer unparalleled opportunities for talent to grow, make an impact, and shape the future of technology. At the heart of our business is our people. We empower our teams to work across borders, innovate fearlessly, and continuously develop their skills through world-class learning and development programs. Whether you're passionate about cloud, software, data, AI, or building meaningful client relationships, you’ll find a place to thrive here. Join us and be part of a purpose-driven culture where your ideas matter, your growth is supported, and your career can go global.

The role

• Do you enjoy modernising and improving existing solutions?
• Are you motivated by working across different parts of an application, from backend logic to the user interface?
• Would you like to help enhance current functionalities while also contributing to new development initiatives?

Practical Information

Location: Sofia, Bulgaria | Work arrangement: Hybrid | Contract type: Full-time | Language requirements: Fluent/professional English

We are looking for a team member who will help us modernise and enhance an internal Licensing Compliance Analysis Platform as we transition from a monolithic system to a distributed microservices architecture. As a Senior Expert for Application Development, you will work primarily with Python on the backend and React and Vue3 on the frontend, supporting both legacy improvements and the development of new features within our evolving platform as the team works towards a significant architecture transformation from monolith to microservice/distributed architecture.

Key Responsibilities

• Collaborate on refactoring and modularising codebases in support of the migration of the ETL/ELT & Analysis platform to distributed processing & services
• Assist in building and maintaining REST APIs and integrating new and existing services
• Develop new platform features and improve existing ones, working both backend and frontend
• Work with data models, database integrations (PostgreSQL, ArangoDB), and Pydantic-based schema
• Participate in design discussions and code reviews, applying good engineering principles to deliver maintainable and robust solutions

What we need to see from you

• Experience developing with Python (Flask or FastAPI preferred) and working with SQL databases
• Experience designing and consuming RESTful APIs
• Strong experience with unit and integration testing
• Comfort working with Linux, Docker, and modern development workflows (GitHub, code reviews, CI/CD)
• Experience with microservices or distributed architectures
• Good communicator, able to collaborate with technical and non-technical peers

Nice to have:

• Experience with React/Redux or similar frontend frameworks, and with HTML, CSS, and responsive design
• Experience with Kotlin
• Data visualisation
• Graph databases (ArangoDB, Neo4J or similar)
• Data pipelines/tools (pandas, numpy)
• Working with legacy codebases and participating in refactoring projects

What’s on offer

Our company benefits vary based on your location, but always include:

• Global company culture: We defined our 6 core values through our company culture (https://www.softwareone.com/en/our-story/our-values).
• A mentor who supports your successful start and is at your side with advice and action.
• President’s Club: Recognition awarded by leadership and your peers.
• Flexible work: Do great work from anywhere but also visit local office to deliver excellence in team relationship.
• Lifelong education: A variety of training and development opportunities.
• Hire to Grow: We optimize our internal structures and feedback culture constantly to be your Employer of Choice, today and in future.

Job Function

Services
Accommodations