Full Stack Developer

Company Description Mingothings International (MTi) is a global leader in digital transformation, helping companies achieve their technological goals through innovation and expert collaboration. Headquartered in Barcelona, MTi has a strong global presence with implementations across Dubai, Kuala Lumpur, Nairobi, Mexico City, and Riyadh. Specializing in areas such as Smart Cities, Traffic & Mobility, Energy, and IoT, MTi drives value through engineering development and integration. As part of the Affluence Corporation (AFFU), MTi plays a pivotal role in creating connected ecosystems for governments, businesses, and integrators worldwide. Role Description We are seeking a Full Stack Developer for a full-time, on-site role at our Barcelona headquarters. The Full Stack Developer will design, develop, and maintain both front-end and back-end functionalities for our web-based projects. Day-to-day responsibilities include writing clean and efficient code, ensuring system reliability, collaborating with cross-functional teams, and integrating technologies to enhance user experience. The role also involves identifying and addressing technical issues and implementing new features to meet client requirements. Qualifications Experience in Front-End Development, including familiarity with HTML, CSS, and JavaScript frameworks. Proficiency in Back-End Web Development and Full-Stack Development, with experience in server-side scripting and database management. Strong skills in Software Development, demonstrating the ability to design and build efficient, scalable, and robust applications. A solid understanding of modern software development best practices and methodologies. Excellent problem-solving skills and the ability to work collaboratively in a dynamic environment. Bachelor's degree in Computer Science, Software Engineering, or a related field. Familiarity with agile development processes and DevOps practices is a plus. Proficiency in English, and additional knowledge of Spanish is an advantage. Key Responsibilities Maintain and evolve the AngularJS web application , improving usability and performance. Build and maintain Node.js services and APIs (REST) that support the IoT platform. Integrate and work with MQTT brokers (publish/subscribe patterns, topics, QoS, retained messages). Implement features related to device onboarding/provisioning , telemetry processing, and event-driven workflows. Design data models and persistence for IoT data (operational + historical), optimizing for performance. Implement real-time UI updates (e.g., WebSockets / SSE) for dashboards and monitoring views. Ensure secure communication patterns (authentication/authorization, token handling, secure API design). Collaborate with DevOps and product teams to ship reliable features (CI/CD, observability, deployments). Technical Skills Required 2–5 years of experience in full stack software development. Strong experience with JavaScript/TypeScript . Solid experience with AngularJS (or proven background maintaining frontend frameworks). Strong backend experience with Node.js (Express or similar). Experience designing and integrating APIs . Experience with databases (SQL/NoSQL): PostgreSQL, MongoDB, Redis (or equivalent). Proficiency with Git and collaborative workflows. Experience with Docker and containerized deployments. IoT fundamentals : telemetry, device connectivity, event-driven systems. Nice-to-haves Hands-on experience with IoT platforms in production environments. MQTT knowledge (broker concepts, QoS, topics, pub/sub patterns). Knowledge of additional protocols/standards: AMQP, CoAP, OPC UA , industrial gateways, etc. Experience with time-series or IoT-oriented storage: TimescaleDB, InfluxDB (or similar). Cloud IoT ecosystems: AWS IoT / Azure IoT / GCP IoT (or equivalent services). Security in IoT contexts (TLS, certificates, device identity, secure provisioning). Observability tooling (logs/metrics/tracing) and performance tuning. Agile/Scrum experience. This position is for you if you... Enjoy building real-world products that connect devices, data, and users . Feel comfortable working with legacy frontend codebases and improving them incrementally. Like backend challenges around real-time data , scalability, and reliability. Communicate clearly and collaborate effectively across teams. Are proactive, detail-oriented, and eager to learn. Are fluent in Spanish and English. What we offer A young, talented team and a growth-oriented environment. Flexible hours and hybrid work. Full-time contract. English classes for continuous development.