Full-Stack IoT & Cloud Engineer

LG Sonic; Zoetermeer; On-site; EUR 65,000 - 90,000; Full time

Job summary

LG Sonic is seeking a Full-Stack IoT & Cloud Engineer to maintain, improve, and extend a cloud-hosted dashboard platform from Zoetermeer, Netherlands. You will work across frontend, backend, APIs, databases and cloud infrastructure to ensure reliable data processing, security, performance, and maintainability.

3–5 years of hands-on full-stack experience is desired. Responsibilities include designing scalable data pipelines, containerising services, and collaborating with internal teams and

Qualifications

• 3–5 years of professional full-stack development experience.
• Professional Python backend and REST API design.
• Experience with relational databases and AWS-based infrastructure.

Responsibilities

• Full-stack feature development across frontend, backend, APIs, databases and cloud services.
• Backend and API development for data ingestion, processing and delivery.
• Frontend development of responsive dashboard interfaces.

Skills

English proficiency

Team collaboration

Analytical thinking

Problem solving

Tools

Python

RESTful APIs

PostgreSQL

MariaDB

AWS

Docker

CI/CD

Git

Terraform

Kubernetes

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.
• 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.

Applicants must already reside in the Netherlands, preferably within the Randstad area.