OneSource Specialty Pharma Jobs in Bengaluru | Drug Substance Manufacturing Careers
OneSource Specialty Pharma is conducting a Walk-in Drive in Bengaluru for Executive and Sr. Executive positions in Drug Substance (DS) Manufacturing. The opportunity is for candidates with experience in upstream and downstream manufacturing across mammalian and microbial platforms.
Work Location: OneSource Specialty Pharma, Integrated DS & DP Facility, 3rd Phase Industrial Area, Obadenahalli, Doddaballapura Taluk, Bengaluru Rural, Karnataka
OneSource is a specialty pharmaceutical CDMO with capabilities across biologics, drug-device combinations, complex injectables and other pharmaceutical technologies.
OneSource Specialty Pharma Hiring for Below Positions
Department: Drug Substance (DS) Manufacturing
| Designation | Executive / Sr. Executive |
| Experience | 2 – 8 Years |
| Qualification | Bachelor’s | Master’s – Biotech | Microbiology |
| Work Location | OneSource Specialty Pharma, Integrated DS & DP Facility, 3rd Phase Industrial Area, Obadenahalli, Doddaballapura Taluk, Bengaluru Rural, Karnataka |
Key Skills & Job Description
Upstream Manufacturing – Mammalian Suite:
- Strong understanding of upstream manufacturing processes involving mammalian cell culture of monoclonal antibodies
- Assemble, prepare, install and test single-use Bioreactor and all other single use assemblies
- Cell expansion, media preparation, aseptic processing, bioreactor operation, process monitoring
Upstream Manufacturing – Microbial Suite:
- Strong understanding of upstream manufacturing processes involving microbial fermentation
- Microbial culture handling, media preparation, inoculum development, fermentation process monitoring, harvest operations
Downstream Manufacturing – Mammalian Suite:
- Knowledge of monoclonal antibody (mAb) downstream processing including harvest, clarification, depth filtration
- Chromatography purification: Protein A, Ion Exchange and polishing steps
- Viral clearance operations, Tangential Flow Filtration (UF/DF), bulk drug substance handling
- Experience with chromatography skids: Cytiva ÄKTA, Merck, Sartorius or equivalent platforms
Downstream Manufacturing – Microbial Suite:
- Strong understanding of downstream manufacturing processes involving microbial fermentation
- Protein chemistry, Dissolution/refolding, buffer preparation, purification, precipitation/crystallization
Walk-in Interview Details
| Interview Date | 23rd August 2026, Sunday |
| Interview Time | 9:30 AM to 4:00 PM |
| Interview Venue | OneSource Specialty Pharma, Global R&D Facility, #293 Jigani Link Road, Bommasandra, Anekal Taluk, Bengaluru – 560105 |
| Work Location | OneSource Specialty Pharma, Integrated DS & DP Facility, Obadenahalli, Doddaballapura Taluk, Bengaluru Rural, Karnataka |
| shwetha@pivotpath.com |
How To Apply
- Check your eligibility for Executive / Sr. Executive position
- Carry your updated resume and relevant employment documents
- Attend the Walk-in Interview on 23rd August 2026 between 9:30 AM and 4:00 PM
- Visit the OneSource Specialty Pharma interview venue in Bengaluru
- Candidates can also email CV to shwetha@pivotpath.com
Who Can Apply
- Candidates with 2–8 years of relevant experience in pharmaceutical or biopharmaceutical manufacturing
- Experience in Drug Substance Manufacturing, upstream processing, downstream processing
- Knowledge of mammalian cell culture, microbial fermentation, chromatography, bioreactor operations, aseptic processing and cGMP manufacturing environments
Career Growth at OneSource Specialty Pharma
OneSource operates as a specialty pharmaceutical CDMO with capabilities across biologics, drug-device combinations, complex injectables and soft gelatin technologies. Its biologics manufacturing capabilities include both microbial and mammalian platforms.
This environment provides exposure to upstream and downstream biopharmaceutical manufacturing, cGMP operations, technology platforms and global regulatory requirements. OneSource facilities are approved by multiple regulatory agencies.
Frequently Asked Questions
1. What is the qualification required?
Bachelor’s or Master’s in Biotechnology or Microbiology.
2. What is the experience required?
Candidates with 2–8 years of experience are eligible.
3. What manufacturing experience is useful?
Upstream manufacturing, downstream manufacturing, mammalian cell culture, microbial fermentation, bioreactor operations, chromatography and drug substance manufacturing.
4. Where is the Walk-in Interview?
OneSource Specialty Pharma, Global R&D Facility, #293 Jigani Link Road, Bommasandra, Anekal Taluk, Bengaluru – 560105.
5. What is the work location?
OneSource Specialty Pharma, Integrated DS & DP Facility, Obadenahalli, Doddaballapura Taluk, Bengaluru Rural, Karnataka.
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Tags: OneSource Jobs, OneSource Specialty Pharma, Bengaluru Jobs, Drug Substance Manufacturing, Biotech Jobs, Microbiology Jobs, Upstream Downstream, CDMO Jobs, Walk-in Interview, 2026