At Sener Aerospace and Defence , our passion for
technology has positioned us as a trusted partner in the space
sector, delivering innovative solutions for leading institutional
customers such as ESA, NASA, and JAXA. We work across a wide range
of space systems, including communications, RF, navigation
(CNG/AOCS), power supply, and electromechanical solutions for
satellites in Earth orbit and interplanetary missions. To reinforce
our activity in the institutional space market, we are looking for
a Tender Engineer to join our team at the Tres Cantos work center ,
with a strong focus on institutional tenders, bid preparation, and
technical-commercial proposals for European space programs. Mission
As a Tender Engineer, your mission will be to support and
strengthen Sener’s position in the institutional space market ,
contributing to the preparation of competitive and compliant
proposals for ESA, EC, and national space agencies. You will play a
key role in the analysis of calls for tenders, coordination of
technical inputs, and preparation of proposals , working closely
with engineering, project management, and finance teams. This role
combines technical understanding with a strong commercial and
proposal-oriented focus . This position is well suited both for
professionals with experience in tendering, bid management, or
proposal engineering , and for engineers with a technical
background who are motivated to transition towards tender and
business development activities within the space sector. What you




will do Analyze institutional calls for tenders and requests for
proposals (ESA, EC, national programs). Coordinate and prepare
technical and commercial proposals , ensuring compliance with
customer requirements and evaluation criteria. Act as a key
interface between engineering teams and commercial stakeholders
during the bid phase. Contribute to the definition, structuring,
and continuous improvement of offer and tender management processes
. Support the commercial positioning of Sener’s RF, antennas, and
communication-related solutions . Participate in clarification
phases, proposal reviews, and customer interactions during the
tender process. Support the identification of new opportunities
within institutional and technology development programs. What we
expect from you We are looking for motivated professionals with a
technical background and strong interest in tendering and proposal
activities . The ideal candidate will have: An engineering or
technical degree , preferably related to space, telecommunications,
RF, electronics, or similar fields. Experience or strong interest
in tender engineering, bid management, or proposal preparation ,




ideally in institutional or public-sector environments. General
familiarity with ESA, EC, or national space programs and
procurement processes (deep expertise is not mandatory). Ability to
understand complex technical content and translate it into
structured, high-quality proposals . Strong coordination,
communication, and organizational skills. Proactive attitude and
willingness to develop a career at the intersection of technology
and commercial activities . Fluency in English (written and
spoken). What we offer At Sener , we believe people are the key to
our success. We offer: Participation in high-impact international
institutional space programs . A role that combines engineering
knowledge with tendering and commercial activities , with clear
development opportunities. Flexible working conditions, including
remote work options and adaptable schedules. A comprehensive
benefits package, including adaptable remuneration, private medical
insurance, and life and accident insurance. Well-being initiatives
and continuous professional development programs. A strong
commitment to diversity, inclusion, and equal opportunities,
recognized by our efr certification . If you are an engineer
interested in tendering and proposal activities within the space
sector—or a Tender Engineer looking to grow in an international
technological environment—we would be delighted to hear from you.
Let’s shape the future together—as far as you want to
go.

📌 Tender Engineer – Space Institutional Market (RFCommunications) (Andalucía)
🏢 Sener
📍 Andalucía