ECG annotator/Cardiac Rhythm Analysis Technician

About Byteflies

We enable virtual care. We facilitate the decentralization of healthcare by giving our customers access to remote patient monitoring tools, real-world data and relevant clinical insights. We transform how chronic patients are treated by changing monitoring days in the hospital to monitoring weeks at home.

We are the digital health company behind the Sensor Dot, a powerful wearable, validated, and certified platform for 24/7 acquisition of physiologic and behavioral data. We have developed remote monitoring applications for COVID-19, epilepsy and cardiovascular diseases, and have a pipeline of additional clinical indications.

Currently, we are looking for an ECG annotator to join our team full time or part time.

Byteflies is structured in autonomous cross-functional teams that have all skills to complete their own part of the Byteflies mission. All of these teams have great autonomy in reaching their goals. We are looking for an entrepreneurial colleague with lots of energy and passion to spread the cardio telemonitor gospel. In this role, you’ll be a member of our Connecting the Heart team.


Sensor Dots are small wearable devices that can record high fidelity ECG and physical motion signals and transmit them securely to the Byteflies Cloud. As an annotator you check the data and the results of the algorithms before the data is processed to the dashboards of medical professionals. You also assist in labeling data and help us train and validate models.

Ideally you can grow in this role and become the coordinator of our annotator crew and be the go to expert for the team.

Either you already are a certified EKG technician or Cardiac Rhythm Analysis Technician or you have experience as a nurse or technician in the cardiac department in a hospital. In that case we would welcome your experience and train you in the specifics of our Byteflies Platform.

Alternatively, you have no previous training or experience yet, but you have a keen interest in medicine and biomedical data. You love work that needs precision and concentration and you want to invest in becoming a certified Cardiac Rhythm Analysis Technician.

In general:

  • You have experience or you have an interest in medicine or the healthcare industry.
  • You can work precisely and meticulously. You can concentrate well.
  • You feel at ease to communicate in English.
  • You will be trained by Byteflies. The initial training takes 2-3 days.
  • On top of that training you’ll work under supervision for the first days/weeks.
  • You can do the work remotely: anywhere you have access to a computer and a secure wifi connection should do.
  • You will have the opportunity to consistently improve your ECG analysis skills as we expand our product and measure more patients.

We offer

We offer this job either as a part time or a full time position:

  • Part time: you can commit to at least 15 hours per week. The part time position can range from 15 hours a week to 25 hours a week. Monday to Friday, during standard office hours (flexible between 8 am and 6 pm)
  • Full time: we work a 38 hour week, flexible starting hours, both on premise as remote.

This job is offered in an employee status (standard Byteflies benefits & working equipment included) or to freelancers who can invoice to Belgium and be paid in the EU.

You will be part of the cross functional Connecting the Heart team, and be able to participate in the further scaling of our products and services.

If you would join us full time (or close to) there will definitely be opportunities to include other tasks and responsibilities in your role.

At Byteflies you'll have the possibility to

  • take part in our journey to enable out of hospital monitoring and the chance to have a direct impact on people’s health care
  • grow with Byteflies and unlock rapid professional growth and lots of new challenges
  • work with a bunch of awesome colleagues who will challenge you to keep learning
  • join a working environment based on real autonomy & responsibility

A competitive salary and benefits package is of course part of the deal

Sounds interesting?

This description is a conversation starter. If it resonates with you, we want to talk.

Drop us a message or slide in our DMs.
You can apply by sending your CV to