Full-Stack IoT & Cloud Engineer

Job Description Job Title: Full-Stack IoT & Cloud Engineer Location: Zoetermeer, Netherlands Reports to: R&D Manager Contract Type: Full time About LG Sonic: LG Sonic is a global leader in sustainable water quality management, dedicated to developing cutting-edge technologies that help protect water ecosystems. With operations in over 50 countries, we specialize in advanced solutions for algae control, water quality monitoring, and environmental protection. Our award-winning ultrasonic technology, combined with real-time data monitoring, empowers industries, municipalities, and governments to maintain clean and healthy water bodies while reducing chemical use. At LG Sonic, we foster a dynamic and innovative work environment, driven by a passion for sustainability and technological excellence. Join our team and be part of a mission to create cleaner water for future generations. Position Summary: At LG Sonic, we deliver water quality monitoring and algae control solutions supported by a cloud-hosted dashboard. As a Full-Stack IoT & Cloud Engineer, you will maintain, improve, and extend the platform across frontend, backend, APIs, databases, and cloud infrastructure. You will help ensure reliable data processing, secure operation, strong performance, and maintainable software. If you have 3-5 years of professional full-stack development experience, we would like to hear from you. Position duties and responsibilities: • Full-stack feature development: design, implement, test, and deploy dashboard functionality across frontend, backend, APIs, databases, and cloud services.• Backend and API development: build and maintain secure services for data ingestion, processing, and delivery.• Frontend development: create and maintain responsive, user-friendly dashboard interfaces.• Database management: design schemas, optimise queries, and manage backups and migrations.• Cloud infrastructure: maintain cloud services, storage, scheduled jobs, monitoring, and backups.• Infrastructure & DevOps: containerise services, automate CI/CD pipelines, and manage infrastructure as code.• Security and operations: apply IAM, TLS, secrets management, logging, alerting, and performance monitoring.• Testing and quality: write clean, well-tested, and maintainable code following industry best practices.• Documentation: maintain clear technical documentation for systems, APIs, databases, and deployment procedures.• Architecture: contribute to technical decisions and improve system reliability, scalability, and maintainability.• Collaboration: work with internal teams and external partners to deliver software effectively.• Production support: troubleshoot issues, support releases, and drive continuous improvement. Nice to Have: • Experience with data visualisation or mapping libraries.• Familiarity with Grafana, Kibana, or similar monitoring tools.• Experience with time-series or geospatial databases.• Familiarity with AWS services such as ECS, Lambda, S3, RDS, or EventBridge.• Experience with Terraform, CloudFormation, or similar infrastructure-as-code tools.• Understanding of MQTT and event-driven systems.• Awareness of cloud security standards such as ISO 27001, SOC 2, or IEC 62443.• Interest in data analytics and integration of machine-learning outputs. Qualification and requirements: • 3-5 years of professional full-stack development experience.• Proven experience with React, TypeScript, HTML, CSS, and JavaScript.• Professional experience with Python backends and RESTful API design.• Experience with MariaDB, PostgreSQL, or similar relational databases.• Familiarity with AWS-based infrastructure, Docker, CI/CD pipelines, and Git.• Understanding of cloud networking, IAM, TLS, secrets management, and monitoring.• Strong analytical and problem-solving skills, attention to detail, and ability to meet deadlines.• Proficiency in English, both spoken and written.• Ability to work in a collaborative, cross-functional team environment. Why Join LG Sonic? At LG Sonic, we offer an exciting and collaborative work environment where your contributions directly impact our mission of environmental sustainability and innovation. By joining our team, you will have the opportunity to grow professionally while being a part of a global leader in water treatment technology. We believe in investing in our people and fostering an inclusive culture where all team members’ ideas are valued. LG Sonic Values: Unity, Trust, Positivism, Over deliver and Passion. Application Process: If you are interested in joining LG Sonic, we encourage you to apply by following these steps: ● Submit Your CV: Send your updated CV to hr@lgsonic.com with the subject line: Full-Stack IoT & Cloud Engineer● Apply via Recruitment Platforms: You can also apply through recruitment websites where this position is posted.● Application Review: Our HR team will carefully review all applications and contact shortlisted candidates for further steps.● Hiring Process: Selected candidates will be invited for a written test (optional depending on position) followed by interviews to assess their skills, experience, and suitability for the role.For any questions or further information, please contact our HR department directly at +31 624684419 Applicants must already reside in the Netherlands, preferably within the Randstad area.