Sr 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

SoftwareOne welcomes applicants from all backgrounds and abilities to apply. If you require reasonable adjustments at any point during the recruitment process, email us at reasonable.accommodations@softwareone.com.

Please include the role for which you are applying and your country location. Someone from our organization that is not part of the decision-making process will be in touch to discuss your specific needs and we will make every effort to accommodate you. Any information shared will be stored securely and treated in the strictest of confidence in line with GDPR.

At SoftwareOne, we are committed to providing an environment of mutual respect where equal employment opportunities are available to all applicants and teammates without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. Additionally, we encourage experienced individuals that have taken an intentional career break and are now prepared to return to work to explore our SOAR program.