Junior Software Engineer

Smart4 Energy; Barcelona; Hybrid; EUR 42,000 - 65,000; Full time

Benefits offered by this job

Equity options

Job summary

Smart4 Energy is seeking a Software Developer in Barcelona with 2–4 years of professional experience to build software across Python, Rust, React and TypeScript within the energy sector.

You will contribute to backend and frontend development, work with PostgreSQL, APIs and data pipelines, and use Docker, Git and Make in a hybrid environment (60% office / 40% remote). Fluency in English is required. Equity options are available.

Qualifications

• 2–4 years of professional software development experience.
• Experience with Python and/or Rust.
• Exposure to React and TypeScript.
• Experience working with PostgreSQL and data pipelines; APIs is a plus.
• Equity options and English proficiency required.

Responsibilities

• Develop and maintain software across Python, Rust, React, and TypeScript.
• Contribute to backend and frontend development.
• Work with PostgreSQL for data and databases.
• Support APIs and data pipelines integration.
• Use Docker, Git and Make in the dev environment.
• Collaborate with the team to advance energy-sector software.

Skills

Python

Rust

React

TypeScript

PostgreSQL

Docker

Git

Make

APIs

Data pipelines

English

Tools

Docker

Git

Make

PostgreSQL

Job description

We’re working with a growing energy technology company in Barcelona looking to add a Software Developer to its team.

This is an opportunity for a developer with 2–4 years of professional experience who wants to apply their software skills within the energy sector, with exposure to areas such as battery storage, solar and energy markets.

Responsibilities

• Develop and maintain software across a technology stack including Python, Rust, React and TypeScript.
• Contribute to both backend and frontend development.
• Work with PostgreSQL for application data and database requirements.
• Support the development and integration of APIs and data pipelines.
• Use Docker, Git and Make within the development environment.
• Collaborate with the wider team to develop and improve software solutions for the energy sector.

What we’re looking for

• 2–4 years of professional software development experience.
• Experience with Python and/or Rust.
• Exposure to React and TypeScript.
• Experience working with PostgreSQL.
• Solid foundations in Docker, Git and Make.
• Experience with APIs and data pipelines would be advantageous.
• Previous exposure to BESS, solar, energy markets or the wider energy sector would be a strong advantage.
• Professional working proficiency in English.
• Equity options.
• Hybrid working – 60% office / 40% remote.
• Barcelona-based.

If you’re a software developer interested in combining technology with the energy transition, I’d be keen to hear from you.