As/400 Developer

As/400 Developer
Viseu
Viseu, Viseu District, Portugal

About Mo
Ongy

Founded in 2005, Mo
Ongy is an international group specialized in Engineering and IT, operating across Europe and North Africa. With a presence in 14 countries, more than 40 entities, and 9, 500 talents, we continue to grow every day thanks to one simple thing: people who are genuinely passionate about technology and innovation.

The Role:

Location: Lisbon

Hybrid Model: 2–3 days per week onsite

Sector: Financial Services

Languages: English (professional working proficiency)

Eligibility: Priority will be given to candidates residing in Portugal with legal work authorization;



other candidates who already hold a valid visa for Portugal will be considered at a later stage.

Your Profile

- Senior-level experience in web and mobile development

- Strong background in Java development (Java 8 or higher)

- Comfortable working in Agile, collaborative environments

- Interest in mentoring junior developers and contributing to technical decisions

Technical Environment (What you will be working with)

- Java (8+);



Spring Boot;

MVC architecture

- Angular

- JSON

- RESTful APIs;



WSO2 (API Management / Integration);



Postman (API testing)

- Docker (containerization)

- Maven (build & dependency management)

- Jenkins (CI/CD pipelines)

- JUnit (unit and integration testing);



Sonar / Sonar
Qube(codequality & analysis)

- Splunk (monitoring & log analysis)

- Intelli
J IDEA (IDE)

- Unix / Shell scripting

What You Will Be Doing (Concrete responsibilities)

- Designing, developing, and maintaining scalable web and mobile applications

- Implementing robust backend solutions using Java and Spring Boot

- Developing responsive and intuitive frontend interfaces with Angular

- Designing and consuming RESTful APIs for system integrations

- Using Docker to build efficient development and production environments

- Writing unit and integration tests to guarantee solution reliability

- Contributing to technical architecture decisions and best practices

Why Join Us?

- Innovation & Impact: Play a central role in shaping
- ready digital solutions

- Challenging projects: Modern technologies, real business impact, and continuous challenges

- Continuous learning: Access to training, certifications, and structured career progression

- Team spirit: An international environment where collaboration truly matters

- Diversity & inclusion: At Mo
Ongy, everyone belongs — no fine print

Diversity & Inclusion

At Mo
Ongy Group, we are committed to equality and diversity. We foster a safe, inclusive, and respectful environment where everyone has equal opportunities.

We do not discriminate based on age, origin, gender, sexual orientation, disability, or any criterion unrelated to skills and merit.

All candidates with the required qualifications are encouraged to apply.