Senior Full Stack Developer

WHO ARE WE?
Sateliot is a Barcelona-based Startup in the New Space sector, becoming the
first satellite telecommunications operator
that will provide
global and continuous connectivity
to all the elements that will make up the massive Internet of Things
(IoT) universe under the 5G protocol
.

In order to do so, Sateliot is launching a
constellation of last generation nanosatellites
, located at low altitude that act as mobile towers. Sateliot is the perfect complement for large telecommunications companies by providing them with the necessary infrastructure where terrestrial technologies do not arrive.

YOUR MISSION
Your mission is to
lead the end-to-end delivery of full-stack projects
, from API architecture and database design to the frontend interface. You will champion best practices in code quality, testing, and cloud integration.

While you will perform rigorous code reviews and mentor other engineers when needed, your primary focus will be hands-on development, solving complex technical challenges and ensuring the reliability of our web platform stack.

Your Main Functions
Full-Stack Development

• Architect, build, and optimize robust web applications using PHP (Laravel) and Python (Flask).
• Implement and maintain RESTful APIs and Microservices for internal systems, third-party integrations, and data processing.
• Develop solutions that integrate with hardware, lab devices, or log processing systems.

Cloud, DevOps & Quality

• Design and integrate common AWS services (EC2, S3, RDS, SNS, etc.) into our applications.
• Contribute to and improve our CI/CD pipelines (Github Actions) for automated testing and deployment to our Kubernetes (k8s) clusters.
• Write clean, efficient, and well-documented code, accompanied by unit and integration tests (PHPUnit, pytest).
• Perform peer code reviews, enforce coding standards, and use SonarQube to measure and improve quality.

Performance & Collaboration

• Diagnose and resolve complex performance bottlenecks at the application, database (SQL/NoSQL), and infrastructure levels.
• Manage tasks in Jira and actively participate in our Agile (Scrum/Kanban) ceremonies.
• Collaborate with Product Owners, UX designers, and DevOps/Network engineers to translate requirements into technical solutions.

Frontend Excellence

• Develop responsive and intuitive user interfaces using HTML, CSS, and JavaScript, leveraging modern frameworks (e.g., , React, or Angular) where appropriate.

Requirements
Education & Experience

• Bachelor's degree in Computer Science, Software Engineering, Telecommunications, or a related field.
• 5+ years of experience as a Full-Stack Developer, with a strong focus on PHP (Laravel).
• Demonstrable experience building production applications with Python (Flask).
• Solid experience designing and consuming RESTful APIs and working with microservice architectures.

Technical Skills

• Hands-on experience with AWS services (S3, SNS, RDS, EC2, etc.).
• Strong command of frontend technologies: HTML5, CSS3, and vanilla JavaScript; familiarity with at least one modern JS framework (Vue, React, or Angular).
• Proficiency in relational (PostgreSQL) and NoSQL (MongoDB) databases.
• Solid experience with testing (PHPUnit, pytest), code quality tools (SonarQube), and agile methodologies.
• Experience with Docker container workflows and deployment on k8s.
• Comfortable with the Linux command line and understanding of fundamental networking concepts. You are not afraid to connect to a device via shell to debug or build an integration.
• Plus: Prior experience in the space or telecommunications sector.

Soft Skills

• Strong analytical and problem-solving skills, with a critical eye for performance, scalability, and security.
• Excellent communication skills; able to explain complex technical decisions to non-technical stakeholders.
• Proactive and with a strong sense of ownership; capable of working independently but thrives in team environments.
• A passion for code quality and for mentoring other colleagues.

WHAT YOU'LL FIND WHEN WORKING AT SATELIOT:
You will be part of one the fastest-growing start-ups in Spain with global reach along getting into the challenging world of New Space & Telecommunication.

Our culture is based on embracing openness by welcoming multicultural talent, being respectful with everybody and being open to exchange ideas. We are also committed to a healthy lifestyle by helping our team balance their work and personal life and also by providing them facilities for healthy habits.

We are a driven team with big goals, that seek for people who are genuinely passionate about their work and that also want to keep learning and getting better personally and professionally

WHAT DO WE OFFER?

• Full time permanent Contract
• Hybrid Work Model
• Schedule flexibility
• Flat and transparent organizational structure
• Buddy Program to help you with your integration during your first month
• Flexible compensation package: Tax benefits with ticket restaurant, transportation and kindergarten, training programs.
• We promote good physical and mental health, with a Health insurance, Fresh fruit in the office and the possibility of sharing the cost of bicycle transport or gyms.
• Work in a dynamic, multidisciplinary and multicultural environment that will allow you to boost your professional career
• To be part of a strong, international, friendly and motivated team, where you can progress both personal and professionally
• The chance to be part of one of the most exciting and disruptive space projects in Europe