Senior Software Engineer in Barcelona or Remote

Qustodio

Workplace
Remote
Hours
Full-Time
Internship
No
Share offer

Job Description

Founded in 2012 by cybersecurity experts Eduardo Cruz, Josep Gaspar, and Josh Gabel, Qustodio is a global leader in online safety and digital well-being for families. In 2022, Qustodio joined the Qoria Group, working with schools, parents, and educators to protect children’s digital journeys. Our mission is to help families and schools navigate the digital world safely and intelligently.

Together, we empower millions of families and educators worldwide to protect children from online harm while fostering healthy digital habits.

The Role

We are looking for a Senior Software Engineer to help take Qustodio to the next level, making it a best-in-class solution for digital well-being in families and schools.

As a key member of one of our new engineering teams, you will collaborate with engineers worldwide to build innovative, high-quality solutions. This role requires a team player with strong technical expertise, problem-solving skills, and excellent communication.

Above all, we seek a talented engineer who enjoys new challenges, continuous learning, and is ready to work with diverse technologies to improve our product for millions of users.

Our Technology Stack:

Your tech stack will depend on the domain you work in, providing plenty of opportunities for growth and development. Our cloud-based platform (GCP & AWS) includes:

  • Backend RESTful services written in Go, Python

  • Frontend client-side apps using React

  • Multi-Platform Applications in Go & TypeScript deployed across laptops

  • DevOps & Orchestration with Terraform, Docker, Kubernetes, Cloud Run

  • GitHub, trunk-based development, GitOps, Cloud Deploy

  • BigTable, BigQuery, Dataflow, Pub/Sub, PostgreSQL, Redis, Memcached

What You’ll Do:

  • Build scalable solutions that enable schools and families to manage millions of students’ digital well-being.

  • Develop applications and tools that support experimentation, customization, observability, and quality.

  • Contribute to engineering excellence by sharing expertise in leading technologies.

  • Collaborate closely with engineering, product, and customer success teams across multiple locations.

Job requirements

What You Bring:

  • Proficiency in server-side development with experience in microservices.

  • Strong background in scalable and high-performance systems, handling large volumes of data.

  • Passion for continuous improvement and enhancing the development and troubleshooting process.

  • A test-driven mindset, prioritizing reliability and code quality.

  • Fluency in English, our working language.

Soft Skills We Value:

  • Ability to work effectively with cross-functional teams (engineering, product, QA, and customer success).

  • Ability to explain technical concepts to non-technical stakeholders.

  • A proactive approach to problem-solving and results-oriented mindset.

  • A self-driven attitude with a collaborative spirit.

What we offer you:

  • Great culture—we are friendly and emphasize both teamwork and fun.

  • Our company is home to over 18 nationalities.

  • Flexible working hours—and there are possibilities to work from home.

  • Interesting challenges in a fast-growing technology company for you to grind your skills.

  • Competitive salary range.

  • Private health insurance.

  • In-house training and team building events.

  • A modern and fully equipped office headquarters in Barcelona’s city center.

  • Daily supply of fruit and beverages.

  • Daily lunch catering.

  • 23 days of holidays per year, plus half a day off on your birthday.

  • Flexible benefits.

 

About Qustodio

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