Mid-Level Full-Stack Developer (React)

Job Description:
Energus Group of Companies, we specialize in innovative solutions for data collection,
analysis, and management on both web and mobile platforms. Our flagship products—Energy
Smart Service and Energus Home—help optimize energy consumption in buildings.
We’re now expanding our operations with a next-generation hybrid device designed to
seamlessly integrate with engineering systems, management software, and IoT technologies in
buildings.
What you’ll be working on:
You’ll contribute to the development of next - generation hybrid device that forms the core of
our intelligent building energy solution. In this role, you will:
• Build intuitive and dynamic Web UIs using React and modern frameworks like
Next.js.
• Lead the team in adopting and implementing cutting-edge Web UI technologies.
• Develop modular micro front-ends that interface with other Energus platforms and
external systems.
• Implement robust communication with IoT field devices using industry-standard
protocols such as BACnet.
• Deliver essential functionalities like real-time monitoring, device control, firmware
updates, alerts, and analytics.
Your responsibilities will include:
• Design and develop user interfaces with React and related frameworks.
• Build scalable back-end microservices in .NET for key modules like Identity
Management, Energy Optimization, Alerts, and Reporting.
• Integrate REST/AMQP APIs with other Energus platforms.
• Work with SQL-based storage for real-time and historical data.
• Contribute to CI/CD pipelines and Dockerized deployments in a hybrid environment.
• Stay up to date with best practices in full-stack development and evaluate emerging
tools and technologies.
• Collaborate closely with product owners and stakeholders to define requirements and
deliver milestones.

What we’re looking for:
• 3+ years of experience in developing web applications using React.
• Strong knowledge of modern React frameworks and JavaScript/TypeScript.
• Solid experience in back-end development with .NET technologies.
• Experience working with SQL databases.
• Understanding of microservices architecture and design principles.• Familiarity with software design patterns and development best practices.
• Strong problem-solving, communication, and time management skills.
• Ability to work independently and collaboratively.
Bonus points for:
• Experience with communication protocols like Modbus, BACnet, or MQTT.
• Familiarity with CI/CD pipelines and automated deployments using Docker and
containerized applications.
• Knowledge of event-driven architectures.
• Exposure to AI/ML, language models, or forecasting algorithms.
• Experience in C++ and embedded device development.

ENERGUS GROUP is one of the largest Lithuanian engineering systems (electrical
engineering, weak currents, process control and automation) companies united by a
common vision - to create a more innovative, sustainable and reliable future. The group of
companies unites more than 150 specialists.
We have accumulated vast experience in implementing and managing complex and large
projects, so we can create unique solutions and realize them ourselves.
When developing and implementing projects, we focus on the future: we focus on energy
efficiency and future operation, ensuring high quality and quick return on investment.
We are inspired by the knowledge that our activities drive innovation and change that
benefits the community, the environment and business.
The most important engine is our team, where every member is precious, and everyone is
united by respect for commitment, creation of real value and pursuit of a common goal. We
are constantly looking for people who share the same values and a positive attitude towards
tomorrow. If you are, join us!

The company offers:
• A supportive environment with wide-ranging training and learning opportunities.
• Flexible hybrid work options and healthy work-life balance.
• A collaborative and friendly team.
• All the tools and technologies you need to succeed.
• Opportunities for professional growth.
• 24/7 accident and life insurance.
• Comfortable office locations in Vilnius and Kaunas.
Salary
2000-3000 €/mon. Netto
Please note that we are open to discussing different compensation based on your skills and
experience