Java Developer

  • Lisbon, Portugal
  • Full-Time
  • Hybrid

Job Description:

About Welvaart

At Welvaart, we create technology solutions that put people at the center.
Our close leadership style and flexible culture of growth empower our teams and elevate the quality of our delivery. We combine rigorinnovation, and empathy to drive projects that transform businesses and build lasting relationships of trust.

We complement this vision with a performance‑driven Digital Marketing offering, helping companies strengthen their visibility, enhance their online presence, and accelerate growth through smart, measurable strategies.

Project

We are seeking a Java Developer with proven experience in Fluent Commerce OMS to join our technology team in Lisbon. In this role, you will build, configure, and integrate solutions using Fluent Commerce to support complex order management, inventory visibility, and fulfillment workflows across multiple systems and channels.

Role

    • Develop, configure, and implement Fluent Commerce OMS solutions, including custom workflows, rules, and automation.
    • Build and maintain integrations between Fluent Commerce and enterprise systems such as ERP, CRM, WMS, and e-commerce platforms using REST/GraphQL APIs and middleware.
    • Create microservices and connectors using the Connect SDK, leveraging Java and Spring Boot.
    • Develop custom rules and orchestration logic using the Fluent Commerce Rules SDK (Java API Client for REST/GraphQL).
    • Take part in technical design discussions, code reviews, and solution architecture. 
    • Test, monitor, and troubleshoot OMS integrations to ensure accuracy, reliability, and performance.
    • Collaborate with product managers, business stakeholders, and engineering teams to deliver high-quality features.

    We are looking for

    • Hands-on experience with Fluent Commerce, including configuration, workflow development, rules, and system integrations.
    • Strong background in Java and Java-based backend ecosystems.
    • Experience working with REST and GraphQL APIs. 
    • Previous experience integrating enterprise systems (ERP, PIM, WMS, CRM, e-commerce).
    • Solid understanding of Order Management Systems (OMS), including order lifecycle, inventory flows, and fulfillment orchestration.
    • Knowledge of cloud environments (AWS, GCP, Azure) and CI/CD pipelines.

    What you can discover with us?

    • Be part of a tech start-up
    • Different scopes of project in different sectors
    • Structure of fairness and equity salary (Consultant Profile)
    • Training & Certification
    • Career Path management
    • More than 30 Partnerships

    UNLEASH THE POWER OF YOUR CAREER