Senior Full-Stack Engineer (Node+Vue.js)

🏢 Summary: Middle/Senior Full Stack Developer role focused on customer-growth features for a large-scale international platform, including onboarding, subscriptions, pricing, trials, and payments. The position emphasizes Node.js back-end development, React front-end work, cloud scalability, and cross-functional product delivery. 🗂️ Requirements: 4+ years of commercial software development experience, Strong Node.js and TypeScript back-end experience, Good React and TypeScript front-end skills, Product-oriented development experience, Cloud infrastructure and DevOps knowledge, AWS experience: EC2, ECS, RDS, S3, MySQL and Redis experience, CI/CD and infrastructure automation familiarity, Scalable system design and engineering best-practice knowledge, Upper-Intermediate English or higher 📃 Skills: Node.js, TypeScript, React, AWS, EC2, ECS, RDS, S3, MySQL, Redis, CI/CD, DevOps 🏢 Description: Join a product-focused engineering team working on customer growth initiatives that directly influence business scalability and user experience. You will contribute to the evolution of onboarding, subscription plans, pricing strategies, and payment experiences for a large-scale international platform. We are looking for a Middle/Senior Full Stack Developer with strong Back-end expertise in Node.js and solid Front-end skills in React. You will collaborate closely with Product Managers, Designers, QA Engineers, and other developers in a highly collaborative environment focused on innovation and continuous improvement. We at Sigma Software value engineering excellence, ownership, and knowledge sharing. This is an opportunity to work with modern cloud technologies, influence product decisions, and contribute to impactful solutions used by customers worldwide. Customer Our Customer is a product-focused international company developing a large-scale digital platform with a strong emphasis on customer growth and user experience optimization. The organization continuously improves pricing models, onboarding journeys, payment flows, and trial experiences to increase customer engagement and business scalability. The engineering culture promotes innovation, ownership, and close collaboration across product, design, and engineering teams. Project The project focuses on building and improving customer-facing product experiences related to onboarding, subscription management, pricing strategy, trial conversion, and payment flows. The team works in a modern cloud-based environment with high engineering standards and a strong product mindset. You will participate in feature delivery, scalability improvements, architecture discussions, and engineering initiatives aimed at increasing development efficiency and enhancing customer experience. Requirements 4+ years of commercial software development experience Strong Back-end development experience with Node.js and TypeScript Good Front-end development skills with React and TypeScript Experience working in product-oriented environments Knowledge of cloud infrastructure and DevOps practices Experience with AWS services such as EC2, ECS, RDS, and S3 Experience with relational databases and caching solutions including MySQL and Redis Familiarity with CI/CD tools and infrastructure automation practices Understanding of software engineering best practices and scalable system design Strong communication and collaboration skills Upper-Intermediate or higher English level Will be a plus Experience with Terraform, Ansible, SonarQube, GitLab CI/CD, and ELK stack Experience working with subscription-based or SaaS products Knowledge of experimentation platforms, pricing systems, or payment integrations Experience contributing to product growth initiatives and customer journey optimization Personal Profile Proactive and collaborative team player Product-minded engineer with strong ownership mentality Passionate about learning and continuous improvement Comfortable working in cross-functional international teams Open to innovation and process improvements Responsibilities Design, develop, and maintain scalable Full Stack solutions using Node.js, TypeScript, and React Collaborate closely with Product Managers, Designers, QA Engineers, and developers to deliver high-quality product features Contribute to onboarding, payment, trial, and pricing experience improvements Participate in technical discussions, architectural decisions, and solution design activities Improve system reliability, scalability, and performance within a cloud-based infrastructure Write clean, maintainable, and well-tested code following engineering best practices Participate in code reviews and knowledge-sharing initiatives Contribute to CI/CD improvements and engineering process optimization Support cross-team initiatives focused on developer experience and operational efficiency

🏢 Summary: Senior .NET Full Stack Developer role focused on building and supporting enterprise web applications, RESTful APIs, and frontend and backend solutions. The position combines hands-on development with technical decision-making, testing, CI/CD, releases, production support, and hybrid work from Lisbon. 🗂️ Requirements: Degree in Computer Science, Software Engineering, Information Technology, Engineering, or related technical field, 5–8 years of relevant .NET full-stack development experience, Strong .NET Core, .NET Framework, and MVC expertise, Experience with React, Angular, JavaScript, and legacy technologies, Strong SQL and Entity Framework knowledge, Production application support experience, CI/CD, Azure DevOps, Jenkins, and Git experience, Authentication and core security principles knowledge, Unit and integration testing experience, Professional English proficiency, minimum B2 📃 Skills: .NET, MVC, React, Angular, JavaScript, C#, SQL, EntityFramework, REST, AzureDevOps, Jenkins, Git, CI/CD, Authentication 🏢 Description: We are seeking a highly skilled Senior .Net Full Stack Developer with expertise in .NET Framework and extensive experience in developing full-stack web applications. The role requires a proactive individual who is capable of making critical technical decisions and contributing effectively within a collaborative team environment. Key Responsibilities Design, develop, maintain, and enhance full-stack web applications. Build and integrate RESTful APIs across enterprise platforms. Gather, analyze, and refine business and technical requirements. Contribute to technical decisions and help prioritize development activities. Develop frontend solutions using React, Angular, JavaScript , and legacy technologies. Develop backend solutions using .NET Core, .NET Framework, and C#. Work with SQL Server and related data access technologies. Perform unit testing and integration testing to ensure quality and reliability. Participate in release and deployment management activities. Support and improve CI/CD pipelines and DevOps practices . Troubleshoot and resolve production incidents , including high-priority issues. Manage and contribute to risk, issue, incident, and problem resolution . Ensure adherence to coding standards, development guidelines, naming conventions, templates, and reference implementations. Produce and maintain clear technical documentation. Collaborate effectively within the team and across distributed, cross-functional, and international teams. Required Qualifications Degree in Computer Science, Software Engineering, Information Technology, Engineering , or a related technical field. 5 to 8 years of relevant professional experience as a .Net Full Stack Developer . Strong expertise in .NET Core/Framework/MVC and related frameworks. Solid experience with React, Angular, JavaScript and working with older or legacy technologies when required. Strong knowledge of SQL and ORM tools such as Entity Framework . Experience working in production environments and supporting live business applications. Hands-on experience with CI/CD, Azure DevOps, Jenkins, and Git . Understanding of authentication mechanisms and core security principles . Experience in development, unit testing , and integration testing . Nice to Have Strong team player who collaborates effectively within and across teams. Proactive mindset with strong ownership and accountability. Good knowledge of Agile ways of working . Experience in documentation and standards ownership . Structured approach to release management, incident management, and problem-solving . Ability to work effectively in a dynamic, fast-paced environment. Experience with requirement gathering, analysis , and solution design . Strong skills in decision-making, prioritization , and communication . Language Requirements Professional proficiency in English speaking and writing (at least B2 level). Dutch and/or French is a strong plus. Work model: 2 days per week in the Lisbon office and 3 days at home.

🏢 Summary: Full Stack Developer role in an international team building and enhancing scalable cloud-based applications for internal customers. The position focuses on Java, Spring Boot, Angular, and TypeScript development, including REST APIs, microservices, CI/CD, and Azure Cloud deployments. It offers a hybrid work model and benefits including healthcare, a Multisport card, and group life insurance. 🗂️ Requirements: 5+ years of software development experience, Java expertise, Spring Boot expertise, Angular expertise, TypeScript expertise, REST API experience, Microservices experience, Docker experience, CI/CD and build automation knowledge, Fluent English 📃 Skills: Java, SpringBoot, Angular, TypeScript, Docker, GitLab, Azure, REST, Microservices, CI/CD 🏢 Description: Start date: ASAP (up to 30 days notice period / 1 month) We are looking for a Full Stack Developer to join an international team building and enhancing modern cloud-based solutions for internal customers. If you have strong experience with Java, Spring Boot, Angular, TypeScript, and enjoy working on scalable applications in the cloud, we'd love to hear from you. What you'll do: - Develop and maintain full stack applications using Java, Angular, Spring Boot, TypeScript, Docker, GitLab, and Azure Cloud. - Design and optimize cloud solutions in collaboration with stakeholders and development teams. - Build REST APIs and microservices. - Contribute to CI/CD processes and application deployments. - Mentor junior developers and support knowledge sharing. What we're looking for: - Over 5 years of experience in software development. - Strong expertise in Java, Spring Boot, Angular, and TypeScript. - Experience with REST APIs, microservices, and Docker. - Knowledge of CI/CD and build automation tools. - Excellent communication skills and fluent English. What we offer: - Hybrid work model (2 days per week from the office). - Medicover healthcare. - Multisport card. - Group life insurance.

🏢 Summary: Senior Full Stack Developer role focused on building and supporting scalable, secure cloud-native enterprise applications on Microsoft Azure. The position combines modern frontend and backend development with REST APIs, microservices, event-driven architecture, and AI-powered business solutions. 🗂️ Requirements: 7+ years of full-stack software development experience, Strong React, Angular, Next.js, JavaScript, and TypeScript knowledge, Backend development experience with .NET Core, Python, Node.js, or Java, Microsoft Azure experience, including App Services, Functions, and API Management, SQL Server, PostgreSQL, or Cosmos DB knowledge, Microservices, REST APIs, OAuth, and OpenID Connect experience, Git, Azure DevOps, and CI/CD pipeline familiarity, Basic Docker and Kubernetes knowledge 📃 Skills: Azure, React, Angular, Next.js, JavaScript, TypeScript, .NET, Python, Node.js, Java, REST, OpenAI, Databricks, Entra, SQL, PostgreSQL, CosmosDB, OAuth, OpenID, Git, AzureDevOps, CI/CD, Docker, Kubernetes 🏢 Description: We are looking for an experienced Senior Full Stack Developer to design, develop, and support modern cloud-native applications built on Microsoft Azure . The role involves developing enterprise web applications, backend services, APIs, and AI-powered solutions, including Generative AI and intelligent business applications. You will work closely with Data, AI, DevOps, and Product teams to deliver scalable, secure, and high-performing cloud solutions. Key Responsibilities Design, develop, and maintain cloud-native applications and backend services on Microsoft Azure. Build modern frontend applications using React, Angular, Next.js, or similar frameworks. Develop backend services and REST APIs using .NET Core, Python, Node.js, or Java. Integrate applications with Azure OpenAI, Azure AI Foundry, Databricks, and other enterprise AI services. Design microservices and event-driven architectures. Implement authentication and authorization using Microsoft Entra ID. Collaborate with Data, AI, DevOps, and Product teams throughout the software development lifecycle. Participate in architecture discussions, code reviews, testing, and production support. Continuously improve application performance, security, scalability, and reliability. Requirements 7+ years of experience in Full Stack software development. Strong knowledge of React, Angular, Next.js, JavaScript, and TypeScript. Hands-on experience with backend development using .NET Core, Python, Node.js, or Java. Experience with Microsoft Azure services, including App Services, Functions, and API Management. Good knowledge of SQL Server, PostgreSQL, or Cosmos DB. Experience with microservices, REST APIs, OAuth, and OpenID Connect. Familiarity with Git, Azure DevOps, and CI/CD pipelines. Basic knowledge of Docker and Kubernetes.