Company Name: Open Energy Transition

Job Details: €40-€130/yrRemoteFull,Time,,Contract

Job Url: https://hiring.cafe/viewjob/cn1va4y3t6vkou28

Job Description: Posted 7h agoSenior Full-Stack Engineer (Global | Remote | English)@ Open Energy TransitionView All JobsUnited States€40-€130/yrRemoteFull Time, ContractResponsibilities:Build dashboards, Improve platforms, Design APIsRequirements Summary:Senior-level full-stack engineer proficient in Python and JavaScript, with experience shipping cloud services, APIs, and CI/CD; strong open-source mindset; excellent async communication.Technical Tools Mentioned:Python, JavaScript, Flask, React, Angular, Vue, GitHub Actions, GitLab, Jenkins, Docker, Kubernetes, Snakemake, Apache Airflow, Terraform, OpenTofu, Nix/NixOS, Bash, Golang
🌍 Senior Full-Stack Software Engineer (Global | Remote | English)
Location: Fully Remote (Europe-friendly overlap preferred; other time zones considered with sufficient overlap)Employment Type: Full-Time/ContractorLanguages Required: English fluencyExperience: Senior 6-10 year experience, ideally large history of open-source contributionsSalary Range: 40-130kEURReports to: Head of Software EngineeringTravel Requirements: Occasional travel to workshops or team events neededStart Date: Early/Mid 2026 (TBD)
About the Organization:
Open Energy Transition (OET) is a remote-first non-profit building open-source tools and data for energy and grid planning. We exist to make energy planning more transparent, reproducible, and accessible - and to help open approaches become the global standard by 2030.
Role Overview:
We’re hiring a Senior Full-Stack Software Engineer to help us build and improve applications across OET: product-grade web apps, dashboards, data tools, and internal platforms that support modelling workflows and real-world decision-making. 
You’ll work across the stack, frontend, backend, and data layer, to ship new capabilities, modernize existing systems, and raise reliability and developer velocity. The scope is intentionally broad: some work will be user-facing (dashboards, reporting, results exploration), some will be platform-facing (APIs, databases, automation), and some will be glue work that turns modelling outputs into usable applications.
This is a hands-on role for someone who ships, cares about quality, and enjoys building pragmatic systems that others can trust.
🌱 Open Source at OET:
We build in the open. This role includes helping us ship and maintain open-source software responsibly — strong documentation, tests, contributor workflows, and a bias toward upstreaming improvements when it makes sense.
Key Responsibilities:

Build and evolve web applications and dashboards (results exploration, reporting, operational tools).
Improve and maintain existing platforms: refactors, performance, UX improvements, and reliability work.
Design and implement APIs + data models that make data easy to query, audit, and reuse.
Create critical automation: scripts, tooling, and reproducible environments that reduce manual work.
Integrate with Python-first pipelines and modelling workflows (ETLs, orchestration tools like Snakemake, Apache Airflow or similar).
Own quality via CI/CD, pragmatic testing, and stable deployments.
Communicate clearly in a remote-first team: async docs, high-signal PRs, and thoughtful reviews.

Qualifications:

Senior experience shipping full-stack products end-to-end.
Experience building cloud services and web apps, and setting up and managing their databases
Bachelor's degree in Computer Science, Software Engineering, etc, or equivalent experience
Strong analytical and problem-solving skills
Fluency in Python and JavaScript, and their environments (venv, conda/mamba, pixi)
Fluency in backend and frontend frameworks (Flask, React, Angular, Vue) and languages (JS, TypeScript, Rescript)
Experience with CI/CD (e.g., GitHub Actions, GitLab, Jenkins), containerization tools (e.g.,Docker, Kubernetes, OpenTofu) and scripting languages (e.g., Python, Bash, Golang).
Nice to have:

Data processing experience (e.g., Snakemake, Apache Airflow), or willingness to learn
Software deployment and scaling skills (Kubernetes, OpenTofu/Terraform, Nix/NixOS).
Expertise with cloud platforms and services (e.g. GCP, AWS, Azure), knowledge of HPC tools (e.g., SLURM).
Experience with working with distributed web apps and microservices.

Effective asynchronous communication skills, ability to work independently, and a growth mindset is a must!
Interest in open-source collaboration

What We Offer:

Mission-driven climate-tech work with real-world adoption.
Ownership, autonomy, and the chance to shape how we build.
Competitive salary, comprehensive benefits, and a dynamic work environment.
Opportunities for professional growth within a globally recognized and respected organization.