March 30, 2022

Research Associate / Senior Research Associate – Lead Discovery & Biochemistry

Job Type: Full-Time

The Opportunity:

X-Chem is a drug discovery company that uses DNA-encoded library (DEL) technology to discover leads for therapeutic targets. As a world leader in DEL technology, X-Chem collaborates with numerous pharmaceutical and biotechnology companies, resulting in over 85 licensed programs to date.

X-Chem is seeking candidates for a full-time position of Research Associate or Senior Research Associate, Lead Discovery & Biochemistry. The primary opportunities for a new team member would be i) performing biophysical protein characterization and ii) performing biochemical or biophysical assays for screening and characterizing small molecules as an essential part of partnered drug discovery campaigns.

Key Responsibilities:

  • Perform standard biophysical protein characterization such as SEC-MALS, DLS, Thermal melt assessment to determine suitability for DNA-Encoded Chemical Library screens.
  • Validate and perform in vitro biophysical and biochemical assays to confirm binding or activity of compounds identified from DNA-Encoded Chemical Library screens.
  • Work closely with members of other disciplines within a matrixed organizational structure to deploy X-Chem’s DNA-Encoded Chemical Library technology to support a range of external projects.
  • Communicate observations, interpretations and conclusions internally and externally.

Required Skills and Qualifications:

  • S or higher degree preferred, with degree of study in biochemistry, biology, chemical biology, or equivalent
  • Industry experience or equivalent experience with small molecular drug discovery preferred
  • Ability to independently validate, analyze and troubleshoot biochemical or biophysical assays with a variety of formats such as FRET, FP, AlphaScreen/LISA, ADPGlo
  • Familiarity with protein characterization techniques (SEC-MALS, DLS, DSF, TSA)
  • Attractive candidates will have a demonstrated track record of high quality and timely data generation, excellent communication skills, and should have the ability to independently solve problems in a fast-paced, team-oriented small company focused on applying innovative technologies to drug discovery with multiple projects advancing simultaneously.
  • Experience with SPR or similar biophysical assays is a plus
  • Experience with an affinity-based drug discovery technology such as DNA-encoded chemistry, SELEX, mRNA Display is a plus
  • Experience with cellular assays is a plus

Why you should join us:

X-Chem offers highly competitive compensation based on prior experience and qualifications as well as comprehensive benefits in order to best support our people.  Benefits we offer includes: 100% Paid Medical, Dental, Disability, and Basic Life/AD&D Insurance; 401K match; 12 Paid Holidays; 22 days PTO; Tuition Reimbursement and Professional Development; Flexible Spending accounts for both medical and dependent care; social hours and company events. Our work environment includes casual dress, bike storage, free parking, and wellness perks.

Who We Are:

X-Chem is the pioneer in DNA Encoded Libraries also known as DEL.  As a privately held drug discovery services organization, our mission is to leverage the X-Chem platform to help create molecules that will improve human health by supporting our customers:  Pharmaceutical and Biotech Companies.  The Company is headquartered in Waltham, MA with locations in Montreal, London, and Budapest.  X-Chem offers a stimulating, casual, and fun working environment; plus a competitive salary and benefits package, and the opportunity for all employees to grow with the Company.  X-Chem is an equal opportunity employer that complies with all applicable national, state and local laws governing nondiscrimination in employment as well as employment eligibility verification requirements of the Immigration and Nationality Act.  All applicants must have authorization to work in the United States.

EEO Statement:

X-Chem is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, gender identity, sexual orientation, pregnancy and pregnancy-related conditions, or any other characteristic protected by law.

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  • Company:
  • Email:
  • Position Location: Waltham, MA
  • Job Code:  JPG2204

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