Integral Molecular is a research-driven biotechnology company creating innovative technologies and therapeutic antibodies for under-exploited membrane protein targets, including GPCRs, ion channels, transporters, and viral envelopes.

20+ years experience optimizing membrane proteins

Work with Top 20 pharmaceutical companies

500+ customers and partners

Are you passionate about science and interested in joining a world-class research team?

Do you want to be a part of a close-knit, small company that takes an active interest in your learning and development?

We are looking for smart, curious, and passionate individuals to join our team and contribute to our shared success.

What you can expect:

  • Serious work in a casual atmosphere
  • Collaborative, dynamic learning environment
  • New ideas and constant innovation
  • Leadership opportunities to enable your career
  • Scientifically and culturally diverse teams

How To Apply To Integral Molecular

Apply to any position using the links below the job descriptions. Integral Molecular is an Equal Opportunity Employer.

Current Career Openings


Administrative and Operations

Are you fueled by creating detailed spreadsheets and translating financial data accurately into Quickbooks Do you want to channel that expertise into making an impact in healthcare in the Philadelphia biotech industry? INTEGRAL MOLECULAR, Inc., is a mid-size Philadelphia-based biotech company specializing in the discovery and characterization of therapeutic antibodies. We are looking for a new member to join our Finance team! Reporting to the Controller, you will play a central role in managing our accounts payable and accounts receivable, while taking on other tasks such as tracking aging accounts and supporting grant funding and financial audits

This is a fulltime position based on-site at our office in the University City area of Philadelphia. 

What you will gain from working at Integral Molecular: 

  • Make an impact: Use your skills to support innovative scientific research at a growing biotech company that impacts human health 
  • Define your career path: Grow your business accounting skills by helping to develop sustainable systems for a growing company and gaining comprehensive experience in all financial operations of a mid-sized business.  
  • Work and thrive within a work culture that supports you first, because when you succeed, your team succeeds, and the company succeeds. 

What you will do at Integral Molecular:    

Accounts Payable

  • Review invoices to ensure proper documentation prior to payment. 
  • Enter invoice and general ledger data accurately. 
  • Allocate and submit invoices for approval. 
  • Reconcile monthly statements with vendors. 
  • Process and upload employee reimbursements. 
  • Track and allocate credit card purchases and receipts using Ramp. 
  • Perform credit card reconciliations

Enhance Customer File Management – Accounts Receivable

  • Maintaining and updating customer records, including new setups and mailing information across systems. 
  • Generating and submitting invoices for approval, following company protocols. 
  • Verifying and recording customer payments and related transactions in accounts receivable. 
  • Generating reports on customer account statuses upon request. 
  • Investigating customer discrepancies and overdue amounts. 
  • Crafting correspondence for standard past-due accounts and collections 

The ideal candidate will have: 

  • Associate’s or Bachelor’s degree in accounting or business preferred or equivalent work experience 
  • Minimum of 1-2 years of relevant work experience (including internships and part-time work)   
  • Knowledge and understanding of accounting principals (GAAP) and Quickbooks 
  • Strong command of Office 365 applications, particularly Excel 
  • Exceptional attention to detail coupled with effective interpersonal communication skills   
  • Ability to work independently with excellent time-management skills  
  • Knowledge of Salesforce would be a bonus, but not required 

Apply Here


Integral Molecular offers part-time and temporary positions to scientists looking to transition from the bench to business. Our commercial internships are open to scientists with an interest and initial experience in learning the commercial side of science. You will work with our marketing, sales, business development, and product management teams. Projects can include market research, researching new product potential, and strategic planning. Commercial internship positions are flexible in nature, both in time and location. The positions are generally not paid but have the potential to turn into consulting or full-time positions at Integral Molecular.


  • Learn about biotechnology and opportunities in science outside of research
  • Work with collegial, innovative, and intellectually stimulating team members in the development of new commercial products

Scientists with a demonstrated interest in business, strategy, and commercialization are encouraged to apply

  • Graduate students and post-docs are welcome (advisor approval may be required)
  • A degree or enrollment in a biological degree program at the MS/PhD level is required
  • Internships require a minimum of 5-10 hours/week of effort
  • Internship projects typically encompass 2-3 months of work
  • Successful candidates will be entrepreneurial and self-starting
  • Excellent organization and communication skills are required
  • Demonstrated interest or experience in business is desired, but prior business experience is not required
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Rachel Fong, Project Leader
“Friendly culture and sense of community”

Working at Integral Molecular has provided me valuable learning and leadership opportunities in an innovative, supportive, and fun environment. I have been able to grow from an entry-level position to a management position while still being challenged with new and interesting projects. My colleagues make it easy to show up at work with a smile every day!
– Rachel Fong, Project Leader

Ready to Apply? We'd Love to Hear From You!

Please submit your resume and cover letter to careers@integralmolecular.com with the Job ID# in the subject heading. Integral Molecular is an Equal Opportunity Employer.