Jobs and Careers
JA
Senior Research Associate, Analytical Development
Janux Therapeutics, Inc.San Diego, United Statesfull_timeVerifiedPosted 5 Feb 2026
About the role
Janux Therapeutics is seeking a Senior Research Associate to participate in designing and executing experiments, as well as perform sample analysis utilizing HPLC, CE-SDS, iCIEF, and capillary CE-SDS ELISA [simple western blot (Jess)]. These activities will support CMC, discovery, pre-clinical, and clinical development of existing and new lead candidates. This hands-on position requires effective communication and documentation of results to enable the advancement of novel research molecules toward development of clinical candidates, which will ultimately lead to late-stage development and commercialization. This position will directly support the discovery of next-generation immune oncology drugs. Ideal applicants will be agile and highly driven, collaborative, team-oriented, possess excellent communication and organizational skills, and carry a strong commitment to excellence.
ESSENTIAL FUNCTIONS AND RESPONSIBILITIES
- Develop and perform HPLC and UPLC assays with minimal supervision including SEC, HIC, IEX, and RP.
- Develop and perform iCIEF and CE-SDS assays.
- Develop and perform ELISAs.
- Perform DLS/SLS analysis using an UNcle instrument and generate datasets that will be used for formulation development studies.
- Perform subvisible particulate matter analysis by HIAC.
- Perform formulation development studies and execute clinical in-use stability studies, transfer formulation knowledge internally.
- Design, conduct, analyze, interpret, and report laboratory experiments; summarize results for meetings and regulatory filings.
- Write and manage SOP’s and test methods, train colleagues and facilitate method transfer to partners and CDMOs.
- Manage and maintain required reagents, laboratory environment, and equipment needed to carry out assignments.
- Draft development reports, method qualification protocols, and method qualification reports
- Prepare presentations for team meetings.
- Work closely with team leaders to complete highest priority work to reach goals and milestones.
- Other duties as assigned.
REQUIRED SKILLS AND QUALIFICATIONS
- Bachelor’s degree in related scientific discipline with 4-6 years of relevant industry experience or Master’s degree with 3-5 years of relevant industry experience required.
- Strong benchtop skills, experience with analysis of protein biologics and peptides.
- Proficient with the development of HPLC and UPLC assays; at least 3 years of experience is required. SEC, RP, HIC, and IEX experience is desired.
- Experience developing and performing ELISAs.
- Knowledge and familiarity in employing various analytical techniques, to include but not be limited to: CE-SDS, iCIEF.
- Experience with DLS/SLS (UNcle), HIAC, HIC and CE-SDS ELISA (Simple Western) blotting or similar technology preferred.
- Experience with formulation development with focus on antibodies or bispecifics is highly desired.
- Proven experience with writing and maintaining SOPs, ability to train others and to transfer methods to external partners.
- Ability to perform routine testing and to follow SOPs in a highly accurate and reproducible manner.
- Desire and ability to learn new technologies, thinking outside the box, and exploring new approaches to innovate.
- Training on project specific assays and ability to train others.
- Ability to work independently, anticipate, and solve problems in a proactive fashion.
- Excellent computer skills, proficiency with Microsoft Excel and PowerPoint required.
- Strong oral and written communication skills a must.
Apply for this role
Generate a tailored application kit with a matched cover letter, interview prep, and CV highlights — in under 60 seconds.
Apply Now →Generate Application KitFree account required — sign up in 30s