ISRO SAC Recruitment 2026 - Apply Online for 48 Junior Research Fellow, Research Associate and More Posts

The three posts target different academic backgrounds and career stages. Junior Research Fellows (31 vacancies) are entry-level positions requiring a master's degree in engineering or related fields; successful candidates often pursue further research or transition to scientist roles. Research Associates (8 vacancies) require a PhD and suit candidates with doctoral research experience seeking stable research positions in space technology. Project Scientists-I (9 vacancies) accept either PhD or M.E./M.Tech holders, offering flexibility for candidates with strong engineering credentials and publications.

SAC primarily recruits in domains including Earth observation, satellite communications, atmospheric sciences, microwave engineering, and space-based applications. Verify your discipline aligns with SAC's research verticals before submitting your application. The recruitment is open across all Indian states with no regional restrictions.

• Junior Research Fellow (JRF): ₹37,000 per month + HRA (House Rent Allowance); estimated in-hand ₹32,000–₹33,500 after NPS (~10%) and tax deductions.
• Research Associate (RA): ₹58,000–₹67,000 per month + HRA; estimated in-hand ₹50,000–₹58,000 depending on exact pay placement and HRA city-wise rates.
• Project Scientist-I (PS-I): ₹56,000 per month + HRA; estimated in-hand ₹48,000–₹52,000 after deductions.

JRF roles serve as entry points into ISRO's scientist cadre; many JRFs transition to permanent Research Associate or Project Scientist positions after 2–3 years and successful performance review. The salary progression from JRF (₹37,000) to RA/PS-I (₹56,000–₹67,000) represents a 50–80% hike. HRA varies by city, ahmedabad (where SAC is located) offers 8–12% HRA depending on classification. After NPS deduction (~10%) and income tax (slab-dependent), in-hand take-home is approximately 80–85% of gross salary for lower brackets and 75–80% for higher brackets. Use the salary calculator to estimate net income based on your city's HRA rate and current tax regime. Compared to private sector research roles in IT/analytics (which range ₹40,000–₹80,000), ISRO positions offer job security, pension benefits (NPS retirement corpus), and research autonomy, though private sector often pays 15–25% higher salaries upfront.

Career growth typically follows a timeline: JRF (2–3 years) → Research Associate or Project Scientist (permanent tenure) → Senior Scientist (7–10 years) → Principal Scientist (15+ years). Promotion is merit and publication-based; scientists with high-impact publications and patents advance faster. ISRO also sponsors higher education; many employees pursue PhD while employed as JRF or RA. Postings may span other ISRO centres (Bangalore, Sriharikota, Thiruvananthapuram) as per operational needs.

• Uploading wrong file formats: Photo must be JPEG; signature must be a PNG or PDF scan of actual ink signature, not a typed font. Mismatched formats result in auto-rejection during portal validation.
• Incorrect qualification dates: Enter the exact date your degree was conferred (not the date you appeared for the final exam). Many candidates list exam date instead of degree conferment date, failing preliminary eligibility checks.
• Missing or incomplete academic records: The notification will specify which certificates must be uploaded at the time of application (typically degree certificate or marksheet). Failure to attach these leads to summary rejection; do not assume you can submit them later during document verification.
• Mismatch between form details and uploaded documents: If your typed name differs from the name on your degree certificate (e.g., maiden name vs. married name), SAC may reject the application. Ensure consistency across all documents.
• Wrong category or age-relaxation claim: SC/ST/OBC candidates must upload a valid caste certificate issued by the prescribed authority. Self-declared or unverified certificates are grounds for rejection; the certificate format must match SAC's prescribed template (check the detailed notification).
• Applying for ineligible post variant: If you hold only an M.Tech, you cannot apply for Research Associate (RA), which mandates a PhD. Submitting an application for an ineligible post results in automatic disqualification.

After final selection, you will receive a written offer letter detailing joining date, post, pay level, and posting location (typically SAC, Ahmedabad). Joining formalities typically take 7–10 days post-letter; you must report to the HR department with original certificates, passport-size photos, and a duly completed joining form. A copy of the offer is filed; you are assigned a unique ISRO employee ID. On joining, you will be inducted into a specific research group or project; your reporting officer (often a Senior or Principal Scientist) will brief you on ongoing projects and assign initial tasks. JRFs and RAs typically work under the supervision of project leads; Project Scientists-I have greater autonomy and may lead sub-projects.

The full timeline from selection to joining is typically 4–8 weeks. No formal training course is conducted; induction is on-the-job, integrated into project teams. Many new JRFs and RAs spend the first 2–3 months understanding project scope, accessing data archives, and familiarising themselves with SAC's computational and experimental facilities (Earth observation labs, anechoic chambers, satellite downlink stations). You will be encouraged to enrol in relevant short-term courses or certifications (e.g., remote sensing software training, GIS, MATLAB) during the first year. Permanent posting is typically at Ahmedabad; temporary deputation to other ISRO centres may occur for special projects or inter-centre collaborations.

Space Applications Centre, established in 1972, is one of India's premier laboratories dedicated to the development and operation of Earth observation satellite systems, satellite communication payloads, and space-based applications. Headquartered in Ahmedabad, SAC operates under the Indian Space Research Organisation (ISRO), which is the nodal agency of India's Department of Space. SAC develops remote sensing satellites (e.g., Resourcesat, Cartosat), manages India's meteorological satellite programme (Insat), and conducts research in microwave engineering, atmospheric sciences, and geo-spatial applications. With over 1,200 employees and an annual budget of approximately ₹500+ crores, SAC is among India's largest space research institutions.

SAC's mandate is to utilise space technology for national resource management, disaster monitoring, and societal applications. It maintains India's largest Earth observation data archive, freely accessible to researchers and development agencies, and operates the Indian National Centre for Ocean Information Services. The centre's credibility rests on successful deployment of 20+ satellites, real-time disaster response systems (flood/cyclone monitoring), and collaborative space missions with NASA, ESA, and other space agencies. Working at SAC means contributing to missions that directly impact India's climate science, agricultural planning, and urban development, offering research impact beyond typical corporate R&D roles.

Junior Research Fellow (JRF) – 31 vacancies, ₹37,000/month: JRF is an entry-level position for recent M.E./M.Tech graduates. JRFs work as individual contributors within established research projects, typically under a Project Scientist or Senior Scientist's guidance. Day-to-day duties include data processing and analysis (satellite imagery, geophysical datasets), algorithm development using MATLAB/Python, field surveys or calibration campaigns, literature review, and documentation. JRFs do not have supervisory responsibilities but are expected to contribute original ideas to project design. Some roles are desk-based (coding, data analysis at SAC's computing centre), while others involve field work (visiting ground-truth sites, installing instruments, collecting validation data). Uniform is not mandatory; most JRFs work in smart-casual dress. The role is a transition point: successful JRFs transition to permanent Research Associate or Project Scientist roles within 2–3 years, or move to PhD programmes (often sponsored by ISRO). High-performing JRFs often co-author publications and may present work at international conferences.

Research Associate (RA) – 8 vacancies, ₹58,000–₹67,000/month: RA is a permanent research position requiring a PhD. RAs lead or co-lead research projects, mentor JRFs or trainees, and are expected to generate publications and intellectual property (patents, software). Day-to-day work is primarily desk-based (data analysis, algorithm development, simulation, manuscript writing) with periodic field campaigns. RAs interact with national and international collaborators, attend conferences, and participate in project proposal writing. The role offers substantial research autonomy; RAs propose novel research directions within their domain and secure funding from government grants or inter-agency collaborations (e.g., Department of Science & Technology, Ministry of Earth Sciences). RAs report to Senior Scientists and are assessed on publication count, citation impact, and project deliverables. This role is ideal for candidates with strong PhD research outcomes and aspirations to advance to Senior Scientist roles.

Project Scientist-I (PS-I) – 9 vacancies, ₹56,000/month: PS-I is a permanent position accepting PhD or M.E./M.Tech holders, offering a middle career track between RA and Senior Scientist levels. PS-I roles are project-focused; incumbents manage specific satellite mission components or application systems, coordinating technical teams and ensuring project milestones are met. Responsibilities include system design, performance testing, stakeholder coordination (with satellite operators, user agencies, international partners), and technical documentation. PS-I roles are often less publication-intensive than RA roles but demand stronger project management and stakeholder engagement skills. Some PS-I positions involve evening/weekend on-call duties for active satellite operations or crisis response (e.g., disaster monitoring). Unlike JRF, PS-I is a permanent cadre with pension benefits. This role suits candidates with engineering excellence, hands-on project experience, and preference for applied work over pure research.

All three roles operate within SAC's research groups (Earth Observation Group, Satellite Communication Group, Geophysics Group, etc.). Infrastructure access includes high-performance computing clusters, satellite downlink stations, geospatial analysis software (ERDAS, ArcGIS, QGIS), and collaboration with international research institutions. A significant perk is participation in actual satellite missions, many team members contribute to live operations, data product validation, and algorithm improvements as satellites remain operational. Candidates are also encouraged to pursue higher degrees; many JRFs complete PhDs part-time or pursue MBA/specialisation programmes with ISRO sponsorship.