Choose us

We are a company where values ​​such as equality, commitment, respect, and integrity are combined with the development of professional talent and teamwork


You are the most important

At SII we know what is truly important to you. We offer you a personalized career plan, flexible hours, teleworking, social benefits, creative thinking spaces and a long etcetera.

We work as a team

We are a cohesive, honest, committed and supportive team that is prepared every day to take on new challenges. We work with optimism, rigor, creativity, and above all, with passion, and we know that to achieve excellent results, we are all essential.

Highlight of We work as a team
We are moved by passion

Passion moves us

We are a united team that share passions. We enjoy inside and outside of work, with leisure activities that encourage complicity between employees. We support each other, recognize the efforts of our colleagues, and share their successes.

Choose us

Do you know why SII is the best option?

Career plans



Social benefits

Flexible hours


Health & Wellness

Big projects

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See what’s happening at SII!

SII Concatel at Diada TICWhat´s new
24 de November de 2022

SII Concatel participates and sponsors the Diada TIC 2022

SII Concatel sponsors, for the fifth consecutive year, the Diada TIC, focused this year on "Metaverse and new realities". In addition, we have actively participated…
SII group growthWhat´s new
15 de November de 2022

SII Group consolidates its upward trend and growth targets

SII Group maintains the positive dynamics of recent years and, in the first half of fiscal year 2022/2023, continues to strengthen with a growth of…
SII Concatel realiza Speed Dating con estudiantes del Campus 42 de TelefónicaWhat´s new
7 de November de 2022

SII Concatel holds a Speed Dating session with students from Telefónica Campus 42

SII Concatel participates in a rapid interview workshop with students of the educational project Campus 42 of the Telefónica Foundation.
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