# Senior Software Engineer at Reel

> The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday. This is one job from the board.

> Responsibilities: - Design, build and operate backend system

- **Company:** Reel (https://jobs.trythestack.co/companies/reel)
- **Location:** København, DK, Denmark
- **Work arrangement:** On-site
- **Employment type:** Full-time
- **Experience level:** 5–10 years
- **Visa sponsorship:** Offered, according to the listing
- **Key skills:** Software Development, Backend Systems, Data Processing, Real-Time Systems, Code Reviews, Elixir, Phoenix Framework, TypeScript, Python, Machine Learning, Energy Trading, Cloud Computing, Postgres, BigQuery, Team Collaboration, Problem Solving
- **Posted by employer:** 2026-04-01
- **Added to The Stack:** 2026-04-02
- **Status:** May no longer be active (posted more than 60 days ago)
- **Apply:** https://reelenergy-1727862339.teamtailor.com/jobs/7501997-senior-software-engineer (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/senior-software-engineer-reel

## About the role

Responsibilities:
- Design, build and operate backend systems that power real-time dispatch, trading and forecasting tools.
- Develop and maintain data pipelines that ingest, process and serve large volumes of time-series energy data.
- Build and own critical systems such as billing engines, asset integrations (solar, wind, batteries) and analytics services.
- Ensure production reliability, monitoring, incident response and scalable infrastructure as volume grows.
- Drive technical direction: perform code reviews, mentor colleagues and contribute to architecture decisions.

Requirements:
- Significant experience shipping backend systems to production and owning end-to-end features.
- Experience with real-time data processing, scalable data pipelines and reliability engineering.
- Familiarity with Elixir/Phoenix is a plus; experience with TypeScript, Python and cloud platforms (GCP) is valuable.
- Knowledge of time-series and analytical storage (Postgres, TimeScaleDB, BigQuery) is beneficial.
- Strong ownership, pragmatic problem solving, focus on reliability and a willingness to learn the energy domain.

## Responsibilities

As a Senior Software Engineer, you will help companies achieve lower electricity costs and drive climate impact by building software for the renewable energy transition. You will work on high-stakes systems, maintain backend systems, and contribute to user-facing features.

## Requirements

Candidates should have solid experience in building and maintaining backend systems in production and a strong bias for shipping software. Curiosity about energy and a willingness to learn are also valued.

## FAQ

- **Is this Senior Software Engineer role still open?** It was posted on 2026-04-01. Listings more than 30 days old may no longer be active, so check Reel's site before applying.
- **Does Reel offer visa sponsorship?** This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on Reel's site.
- **Where is this role located?** The listing gives the location as København, DK, Denmark. It is marked on-site.
- **What skills does this role ask for?** The listing names: Software Development, Backend Systems, Data Processing, Real-Time Systems, Code Reviews, Elixir, Phoenix Framework, TypeScript, Python, Machine Learning, Energy Trading, Cloud Computing, Postgres, BigQuery, Team Collaboration, Problem Solving.

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## About The Stack

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## Notes for agents

- Apply on the employer's page (https://reelenergy-1727862339.teamtailor.com/jobs/7501997-senior-software-engineer). The Stack does not take applications.
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