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“Impossible is just an opinion.” – 

Paulo Coelho


"The ridiculous to the sublime is but a step"

Mutual Respect and Support

For all the talk above about our view of you as a team member, it's important to know that more than anything we believe that whatever your contribution to Expansion, it falls flat if any fail to respect or support fellow team members.  We do not support discrimination of any sort, either during the hiring process or post hire on the basis of race, ethnicity, gender type, beliefs,.. hair style, sock wearing preferences;  It's a long list.  We seek to thrive in and through diversity and are dedicated to maintaining genuine attitudes of respect while doing our best to support and honor your uniqueness.


 – And while we're on it; 



We'd be remiss to mention what underlies the integrity of our work; Being accountable to one another in order to keep the integrity of our work at its highest.  We will go out of our way to ensure our goals stay in alignment with the values of Expansion Therapeutics mentioned above.   

The Silent, (absent) "I" in Team

Bring yourself to this professional outing.  "There is no "I" in Team" does resonate with appropriate equanimity  but we can't abide its limits.  If you're hired to be a part of this endeavor to cure major CNS diseases we'll need you to bring everything you have.  Stand up, say it, do it; and we'll be sure to support you in your vision same as you have come to support ours.   

Culture of Curiosity

If curios is not a state of being, we may not know what else it is.  So whatever else you may encounter as a part of the Expansion Therapeutics team, you can be sure to be both inspired and encouraged to give your curiosity a front-row seat.  Above all be sure not to keep it to yourself.  If you reverse Napoleon's logic, you'll have what we're after here:  

Read our Equal Opportunity statement  

Believe in Yourself

Senior Research Associate


Accountabilities & Responsibilities:

  • Assemble critical research reagents employing advanced molecular biology techniques such as, by designing primers, oligos, probes, expression constructs, and molecular cloning as needed for various projects.

  • Perform molecular biology assays including isolation and quantitation of DNA/RNA and quality evaluation by gel and capillary electrophoresis.

  • Establish and conduct RT-PCR and qPCR assays.

  • Perform fundamental biochemical assays such as SDS-PAGE, Western, ELISA, and MSD.

  • Support ongoing cellular assays utilizing the critical molecular biology reagents including viral or non-viral delivery of DNA, RNA.

  • Support upkeep and maintenance of various laboratory equipment.

  • Track supplies and orders for lab operations and inventory management

  • Maintain detailed organized records of experimental data and analysis.

  • Develop, optimize protocols, and support generation of standard operating procedures (SOPs).

  • Interpret and present data regularly in both oral and written formats.

  • Perform all duties in keeping with the Company’s core values, policies and all applicable regulations.

Requirements: Proven Experience, Skills, and Education:

  • Bachelor’s degree minimum 4 years of experience or master’s degree minimum 2 years of experience in molecular biology, biochemistry, biomedical engineering, or a similar field with relevant hands-on industry experience

  • Experience in molecular RNA biology, knowledge of in vitro transcription/translation will be highly valued.

  • Familiarity with standard laboratory instruments, computers and office and laboratory software including molecular biology software will be required.

  • Proven experience with Invitro MoA pharmacology

  • Experience in protein labeling, assay-development using ELISA, MSD, is a plus.

  • Experience in independently conducting experiments, analyzing, and interpreting experimental data is required.


  • Excellent written and oral communication skills.

  • Ability to work independently and effectively collaborate in a multi-disciplinary environment.

  • Passionate, self-motivated, individual contributor, critical thinker and willing to learn new research technologies

  • Success-oriented individual with relentless drive for advancing programs in a fast-paced environment.

  • Contribute to the company culture with a team and collaborative spirit.

Expansion Therapeutics fosters an inclusive company culture that values diverse talent, backgrounds, and experiences. We are proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity, national origin, genetics, disability, age, sexual orientation, veteran status, or any other legally protected categories.

Expansion Therapeutics is a private well-funded biotechnology company focusing on developing transformative oral medicines that target RNA-mediated devastating diseases. Expansion is seeking a highly motivated molecular biologist and biochemist to play a key role in advancing the ongoing cross-functional drug discovery & development efforts. This position will report to the Senior Scientist II and will be responsible for establishing innovative assays utilizing fundamental molecular biology and biochemical technologies. This position will be based in our Cambridge, MA location.

*Title will be commensurate with experience.

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