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Smappee
Smappee
Company · 7 open jobs

Java Software Engineer

Join Smappee in Harelbeke as a Java Software Engineer developing backend services for smart energy management. Enjoy a flexible work culture, career growth, and benefits like an electric company car and health insurance. Help shape sustainable energy solutions with a dynamic cleantech team.

Flexible Full time UTC+02:00 Updated today

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Smappee (Smart Appliance for Energy Efficiency) helps businesses and individuals take control of their energy consumption. Through innovative energy management and EV charging solutions, we make energy efficiency accessible, helping reduce costs and contributing to a more sustainable future.

At Smappee, we take ownership, collaborate openly, and communicate transparently. We stand behind our commitments and aren't afraid to experiment, challenge ideas, and grow through change.

Position

As a Backend Developer, you help build the backbone of Smappee's energy management platform. You develop and own a part of our platform that connects our energy solutions with households, businesses, installers and partners to manage energy smarter. Whether you work closer to our devices or on the services and APIs powering our platform, your work has a direct impact on how Smappee measures, manages and optimises energy. As our platform evolves, so can your focus, giving you the opportunity to grow your expertise while helping shape the future of our technology.

Responsibilities

  • Design, build and maintain Java backend services in our cloud platform and you own a domain within it rather than passing through it
  • Work on the path from device to platform: data coming in, configuration going out and the model of an installation staying correct as it changes
  • Develop the APIs that our UI and our partners consume
  • Build and maintain the integrations the platform depends on, towards devices and towards the systems around us
  • Act as third line support for your domain: you pick up escalated tickets, investigate incidents and turn the outcome into follow up work in the product
  • Work directly with product management, firmware engineers, app and frontend developers and software testers, from the first design discussion rather than from a finished specification

Requirements

  • You have a bachelor's or master's degree in computer science, or equivalent experience
  • You have least five years of experience as a backend software engineer
  • You are strong in Java and comfortable with relational databases and SQL (MySQL, Postgres)
  • You have built event driven and message based integrations (Kafka, MQTT or comparable) and REST APIs that you both consume and expose
  • You are at ease in a cloud environment (AWS) and working in a large modular codebase
  • You can hold a full system in your head: hardware devices on one side, customers on the other and you reason clearly about what happens when one part of it goes offline
  • You learn quickly and adapt. New domains, unfamiliar code and shifting priorities are part of the job and you help the people around you keep up as well
  • You take ownership. An escalated issue in your domain stays yours until it is solved

Benefits

At Smappee we believe in a modern, dynamic, flexible work environment and culture where you can be yourself and truly inspire people to contribute to a better planet. What can you expect exactly?

  • An inspiring office environment at cleantech hub Snowball: a place where companies with a heart for sustainable innovation can get inspired and grow.
  • Personal growth with multiple career and personal development opportunities in an organization that is constantly evolving.
  • A chance to participate in team activities, companywide events and monthly drinks with your colleagues at the HQ.
  • Remuneration according to experience, completed with extra-legal benefits such as an electric company car and charging card or mobility budget, meal vouchers, eco vouchers, health insurance, group insurance and holidays supplemented with ADV days.
  • A flex benefits plan with optional benefits such as bicylce leasing, multimedia, home office supplies, additional holidays, refund of individual pension savings and warrants.
  • A job where you can truly contribute to a better planet.

Pay & benefits

Health insurance Retirement plan Meal allowance

About this role

Posted
30 Sep 2026
Updated
30 Sep 2026
Job type
Full time
Workplace
Flexible
Working hours
UTC+02:00
Experience
5+ years
Employersmappee.com
LinkedInSmappee

About Smappee

Company Overview

Name

Smappee

Headquarters

Harelbeke, Belgium

Founded

2012

Size

Approximately 150 employees (source: linkedin.com). The annual revenue is estimated to be between 10 million and 50 million dollars (source: smappee.com).

What They Do

Smappee specializes in smart energy management, with a primary focus on monitoring and optimizing electricity consumption, complemented by solar energy integration and electric vehicle (EV) charging solutions (source: smappee.com). The company's technology focuses on three interconnected areas: real-time analysis of energy consumption at the device level, optimization of self-sufficiency through solar energy management and battery storage integration, and intelligent infrastructure for EV charging (source: smappee.com). The flagship product is the Smappee energy monitor, launched in June of a reference year for 199 euros, capable of identifying individual energy consumption of devices (source: smappee.com). This system allows users to monitor energy flows and direct excess solar energy to major consumers and battery storage systems (source: smappee.com). Smappee serves a wide range of markets, including residential consumers, installers, and small to medium-sized enterprises, achieving global distribution in Europe, the United States, Mexico, Australia, and New Zealand (source: smappee.com).

Projects & Track Record

Smappee has sold a significant number of devices, with monthly sales figures ranging from 1,000 to 10,000 in the European, North American, and Asia-Pacific markets (source: smappee.com). The previous venture of founder Grosjean, EnergyICT, illustrates the impact of Smappee, where the company monitored 10,000 energy meters at Tesco, the largest supermarket chain in the UK, reducing energy consumption by 20% (source: smappee.com). Smappee has also formed strategic partnerships with companies such as Watt Footprint and Chargefox, demonstrating the integration of ecosystems in smart energy management and EV charging (source: smappee.com).

Recent Developments

In October 2024, Smappee announced a significant leadership change, appointing Kurt Vandeputte as CEO while founder Stefan Grosjean took on the role of Smappee Group CEO (source: smappee.com). The company also received the prestigious Red Dot: Best of the Best Award for Design Concept for its EV line, underscoring the company's recognition as an innovator in smart energy solutions (source: smappee.com). Smappee continues to advance its technology with innovations such as Cascade Overload Protection and integration with smart chargers, positioning itself as a developer of next-generation energy management tools (source: smappee.com).

Working at Smappee

The company culture at Smappee reflects the philosophy of founder Grosjean, focusing on challenging established energy companies and empowering consumers (source: smappee.com). The company emphasizes integration with the local community and consciously operates from West Flanders, collaborating with regional entrepreneurs and SMEs (source: smappee.com). The organization has its headquarters in Harelbeke, Belgium, and regional offices in Australia, the United States, the Middle East, the United Kingdom, and South Africa, where local support, sales, and installation coordination take place (source: smappee.com).

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