Backend Developer

Description

Summary: Welvaart is seeking a skilled professional to develop, test, deploy, and maintain modern backend solutions, focusing on quality, performance, and collaboration. Highlights: 1. Be part of a tech start-up 2. Different scopes of project in different sectors 3. Career Path management ***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 **rigor**, **innovation**, 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. ***Role*** * Develop, test, deploy, and maintain modern backend solutions; * Build REST APIs to integrate frontend and backend services; * Ensure code quality, performance optimization, and maintainability; * Apply architectural principles including micro\-frontends for modularity and scalability; * Use GitLab for version control, CI/CD pipelines, and team collaboration; * Collaborate closely with backend, product, and QA teams to deliver high\-quality features; * Identify and resolve performance bottlenecks and ensure cross\-device responsiveness and accessibility. ***We are looking for*** * Graduate degree in Computer Science and/or Computer Engineering; * At least 4 years of experience in a similar role; * Experience with continuous integration tools and processes; * Experience with Node.js and/or Springboot frameworks; * Experience with Javascript and/or Kotlin (Java is fine also) programming languages; * Experience with testing frameworks such as Junit, Selenium, Jest or others; * Experience in one of these databases: Mongodb, Elasticsearch, Postgresql or SqlServer; * Experience with messaging services (Kafka and/or RabbitMQ) and with cache systems (Redis and/or Memcached). ***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*** Pagamento: Até 2 500,00€ por mês Localização do trabalho: Trabalho remoto híbrido em Porto