Senior FrontEnd Developer

About us

Helicon builds software for energy companies and startups with energy-related products (e.g ABB, Polarium, Stockholm Exergi, Hitachi Energy). Our experienced software engineers and data scientists specialize in product development, data engineering, and cloud infrastructure.

A typical project includes some kind of data infrastructure (where we use tools like: Kubernetes, Airflow, PostgreSQL, TimescaleDB, InfluxDB, Kafka), a machine learning component (typically built around Spark and Tensorflow), APIs and software to facilitate communication between services (e.g. Python, FastAPI, Django, Kafka, RabbitMQ), and UIs where end-users can operate the system and visualize data and analyses (e.g. React, ThreeJS, WebGL). The front-end components of our systems vary from administration panels and analytical dashboards, to complex 3d-based digital twins. 

About you

• You strike a balance between moving fast and creating scalable and
  maintainable solutions.

• You’re super-passionate about code, technology, and user experience.

• You’re empathetic about – and understand the needs of – the customer.

• You enjoy discovering, defining, and solving problems.

• You’re excited to learn and eager to teach.

• You make pragmatic scoping decisions and can explain why the team is
  doing something a certain way.

• You work with your team to tackle technical challenges and to level up in the process.

• You can theorize and think in abstractions, but understand the importance of getting things done.

• Fluent in Swedish and English

About the role

• Create and maintain React component libraries, data visualization components, and application frameworks.

• Provide mentoring and push the team forward in terms of front-end development methodologies.

• Rapidly and precisely plan and execute front-end application development
  projects.

• Perform positive code reviews and provide meaningful feedback.

What we are looking for

• 5+ years experience with HTML, CSS, and JS.

• You know the ins and outs of React.

• You write high-quality code that is easy to read, understand, and test.

• Strong understanding of git and version control in general.

• You’ve spent many hours thinking about the best way to manage the state in front-end applications.

• Strong opinions on how to best connect applications with external APIs.

• Fundamental understanding of application profiling and performance
  optimization.

• Ability to build applications that are fed large amounts of data but remain
  highly responsive.

• Leadership experience and strong communication skills.

• Able to work in a hybrid setup in Stockholm

Bonus

• WebGL, related libraries, and 3D programming in general.

• An eye for design and knowledge of current design trends and UX best
  practices.

• Understanding of data visualization methods and information communication.

• Experience in building user interfaces from scratch