Full-Stack Software Engineer (Java / Spring Boot / React) Mechelen, Belgium Hybrid • Contract →

Fuga; Antwerpen; Hybride; EUR 60 000 - 90 000; Plein temps

Avantages offerts par ce poste

Hybrid work options

Meal vouchers

Health insurance

Public transport reimbursement

Company car or bicycle allowance

Restaurant in building

Résumé du poste

Sonetas is a Belgian software company delivering SaaS for veterinarians. We are modernising an existing platform and building a new greenfield hospitalisation app, using Java, Spring Boot and React, with AI-assisted development as part of daily work.

As a medior/senior engineer you will own features, contribute to architecture, and collaborate in a Kanban team. We offer hybrid work in Belgium, payroll or freelance arrangements, and a supportive, open atmosphere.

Qualifications

• Proven medior/senior software engineer
• Experience with Java/Spring Boot and React
• Interest in both frontend and backend development

Responsabilités

• Further modernise towards a Java / Spring Boot / React stack
• Help build the greenfield hospitalisation application
• Develop new services, APIs, modules and features
• Actively use AI coding agents such as Codex and Claude
• Contribute to discussions around architecture, quality, performance, security and usability
• Work in a Kanban methodology with initiative and ownership

Connaissances

Java

Spring Boot

React

AI coding

Frontend & Backend

Outils

Codex

Claude

Description du poste

Would you like to help build software that is used every day by 1,300 veterinary practices? At Sonetas, you’ll combine the modernisation of an existing SaaS platform with the development of a completely new product.

Fuga is evolving from a legacy Java application towards a Java, Spring Boot and React stack. At the same time, we are building a new greenfield application for hospitalisation from scratch, as well as a number of internal scalability tools. We are also developing myPets, our platform for pet owners.

AI-assisted development is part of our daily way of working. We use coding agents such as Codex and Claude to develop faster.

We are looking for engineers with an interest in both front-end and back-end development, who enjoy taking ownership. Both payroll and freelance arrangements are possible.

What will you do?

• Further modernise Fuga towards a Java / Spring Boot / React stack
• Help build our greenfield hospitalisation application
• Develop new services, APIs, modules and features
• Actively use AI coding agents such as Codex and Claude
• Contribute to discussions around architecture, quality, performance, security and usability
• We use a Kanban methodology, with plenty of room for initiative and ownership

Who are you?

You are a medior/senior software engineer who:

• enjoys building maintainable and user-friendly software
• likes putting new technologies and AI into practice
• wants to understand why we are building something and who we are building it for
• is customer-focused and communicative
• knows how to distinguish the important from the less important
• enjoys working as part of a team

What can you expect from us?

• A key role in a growing and financially healthy software company
• The combination of an established SaaS platform with 1,300 customers and a new greenfield product
• A significant impact on both technical decisions and the product
• Modern technology and AI-assisted development as part of our daily work
• An enthusiastic team in an open and informal atmosphere
• Payroll or freelance
• For payroll employees: a market-based gross salary, meal vouchers, hospitalisation and group insurance, the possibility of a company car or bicycle allowance, and reimbursement of public transport
• 32 days of annual leave for payroll employees
• Hybrid working with flexible remote-working options
• An office within walking distance of Mechelen station, with a restaurant in the building that we cannot particularly recommend

Who are we?

Sonetas is a Belgian SME and market leader in SaaS solutions for veterinarians.

With Fuga, we support 1,300 veterinary practices every day with their administration and practice management. With myPets, we connect veterinarians and pet owners. At the same time, we are building new applications, including our hospitalisation platform.

At Sonetas, you therefore get to experience both sides of software development: modernising a business-critical SaaS application and designing completely new software from scratch.

Ready to help build software that is genuinely used? We’d love to meet you.