Understanding the Scientist/Engineer 'SC' Role
The primary entry-level position for engineers at ISRO is the Scientist/Engineer 'SC' post. This is a Group 'A' Gazetted post under the central government, placing new recruits at Level 10 of the pay matrix. It is the starting point for a career that
could see individuals contribute to India's landmark space missions, from Chandrayaan and Mangalyaan to Gaganyaan. The 'SC' in the designation is simply a grade and does not refer to any social category. Recruitment for these roles happens through two main channels: large, multi-disciplinary drives conducted by the ISRO Centralised Recruitment Board (ICRB), and smaller, specific drives by individual ISRO centres located across the country.
Core Educational Qualifications
To be eligible for the Scientist/Engineer 'SC' post, the fundamental requirement is a Bachelor's degree in Engineering or Technology (B.E./B.Tech) or its equivalent. Candidates must have secured a First Class with an aggregate minimum of 65% marks across all semesters or a CGPA of 6.84 on a 10-point scale. The specific engineering discipline required depends on the vacancy. For the 2026 recruitment, posts are available in fields like Electronics, Mechanical, Computer Science, Civil, Electrical, and Architecture. For certain specialised posts, such as Scientist/Engineer 'SD', a PhD in the relevant field may be mandatory.
The Role of GATE Scores
For many recent recruitment cycles, including the one announced in July-August 2026, ISRO has moved towards using Graduate Aptitude Test in Engineering (GATE) scores for shortlisting candidates. Instead of conducting its own separate written test for all disciplines, ISRO now requires applicants to have a valid GATE 2025 or GATE 2026 score in the engineering paper corresponding to the post they are applying for. It is crucial to note that ISRO uses the GATE score, not the rank or marks, to shortlist candidates for the interview stage. In some recruitment drives, ISRO may still conduct its own written test, so it is vital for applicants to read the specific notification carefully.
Age Limits and Relaxations
For the Scientist/Engineer 'SC' position, the standard maximum age limit for general category candidates is typically 28 years as of the closing date of the application. However, there is some variation, with other sources indicating a range of 18 to 30 years. Age relaxations are provided as per government norms for reserved categories. Typically, there is a relaxation of up to 5 years for SC/ST candidates (making the maximum age 33) and 3 years for OBC candidates (making the maximum age 31). These relaxations are applicable only against vacancies reserved for those categories.
The Selection Process Explained
The selection process for the GATE-based recruitment has two main stages. First, candidates are shortlisted based on their valid GATE scores, with ISRO typically calling candidates for interviews in a 1:7 ratio for the number of vacancies. The second stage is the personal interview. The interview assesses the candidate's technical knowledge, subject awareness, and comprehension skills. The final selection is based on a 50% weightage given to the GATE score and 50% weightage to the interview performance. Candidates in the unreserved category are generally required to score a minimum of 60% in aggregate to be considered for the final merit list.
How to Apply for the 2026 Recruitment
The application process for ISRO recruitment is conducted entirely online through the official ISRO website, www.isro.gov.in. For the current drive, applications opened in late July 2026, with the deadline set for August 17, 2026. Candidates must register on the portal, fill out the application form with personal details, educational qualifications, and their valid GATE score, and upload the required documents. It is essential to provide a valid email address, as all communication, including call letters for interviews, is sent electronically.
