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Urgent! Full Stack Engineer Position in españa - Explore Group

Full Stack Engineer



Job description

Full Stack Developer - IoT Services (Freelance Role - 6 Month Contract)

We are seeking an experienced Full Stack Developer to join our team and take ownership of designing and building scalable web applications and platform features across the entire technology stack.

This is a senior-level role requiring at least 8 years of professional software engineering experience, with strong leadership in architecture and implementation—particularly within IoT service development .

You will participate in code reviews, performance analysis, and troubleshooting, while applying modern software engineering practices to deliver high-quality solutions.

Key Responsibilities

  • Lead the design and implementation of IoT services and platform features, taking technical ownership of architecture and delivery.

  • Build platform extensions and custom features using Java and Fantom .

  • Develop across the full web stack (HTML5/CSS, React, TypeScript/Node.js, Java ).

  • Architect and implement efficient, reusable front-end and back-end systems.

  • Build RESTful services using TypeScript and design device-facing gateways for IoT integrations.

  • Collaborate with product managers and engineers to deliver user-focused solutions.

  • Participate in code reviews and design discussions.

  • Analyse performance and implement enhancements.

  • Investigate issues, identify root causes, and provide corrections.

  • Translate customer needs into reliable, maintainable technical solutions.

Required Skills & Experience

  • 8+ years of professional experience in software engineering, with significant exposure to full-stack and distributed systems.

  • Experience building scalable applications and modular user interfaces.

  • Familiarity with modern CSS frameworks, tools, and workflows.

  • Knowledge of software engineering best practices (unit testing, code reviews, documentation).

  • Degree in Computer Science, Engineering, or a related technical field.

  • Fluency in English (written and spoken).

Nice to Have

  • Experience with Fantom development.

  • Knowledge of IoT/BAS protocols (e.g., MQTT, Modbus, Haystack).

  • Exposure to cloud-based environments (AWS, Azure, GCP ).

  • Background in security practices for IoT (device authentication, secure communication).

  • Experience leading technical initiatives or mentoring team members.

Workplace

  • Fully remote role.

  • Occasional travel within Europe may be required during testing phases.

Seniority level : Mid-Senior level

Employment type : Contract

Job function : Consulting

We are an equal opportunities employer and welcome applications from all qualified candidates.

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