[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All AbbVie jobs](https://jobs.opennash.com/companies/abbvie/) · [Search jobs](/search/) AbbVie # Scientist I Multi Specifics Expression In North Chicago Il Jid 30874 Research & Science Listed on AbbVie’s official careers site. Listed as of October 18, 2026. Check that it is still open and apply there. [Apply on AbbVie’s careers site →](https://careers.abbvie.com/en/job/scientist-i-multi-specifics-expression-in-north-chicago-il-jid-30874) [OpenNash Jobs](https://jobs.opennash.com/) / [AbbVie](https://jobs.opennash.com/companies/abbvie/) / Scientist I Multi Specifics Expression In North Chicago Il Jid 30874 ## Job description Company Description About AbbVie AbbVie's mission is to discover and deliver innovative medicines and solutions that solve serious health issues today and address the medical challenges of tomorrow. We strive to have a remarkable impact on people's lives across several key therapeutic areas including immunology, oncology and neuroscience - and products and services in our Allergan Aesthetics portfolio. For more information about AbbVie, please visit us at www.abbvie.com. Follow @abbvie on LinkedIn, Facebook, Instagram, X and YouTube. ### Job Description Overview: AbbVie Biotherapeutics and Genetic Medicine is an integrated, global discovery organization responsible for biotherapeutics drug research across disease areas including immunology, oncology, and neuroscience. Our scope includes the discovery of innovative biologic medicines from the early exploratory stage and their support through clinical development. We are growing a world-class team of scientists and leaders who will drive the discovery and advancement of innovative biologic-based therapies. Careers in AbbVie Biotherapeutics and Genetic Medicine provide unique opportunities to work with cross-functional teams that drive exceptional science and deliver innovative medicines to patients. We are looking for diverse candidates with strong scientific and leadership experience to join the team and can offer exciting and rewarding career opportunities for these candidates. The Biotherapeutics Production group at AbbVie is seeking an experienced protein expression scientist to join a fast paced, high throughput, large scale mammalian expression group. This role will focus on CHO cell line engineering biologics, protein expression, and characterization of complex biotherapeutics, including multi-specific, while incorporating modern capabilities in automation and data digitization to enable efficient and scalable workflows. The Biotherapeutics mammalian expression group supports research scale (1 to 200L) expression of biologics in support of AbbVie’s worldwide drug discovery efforts. ### Key Responsibilities Expression of novel multi-specific biologics formats to support therapeutic area drug discovery projects. Generation and screening of stable CHO cell lines with optimized attributes (i.e. titer, monomer, chain-pairing) using 2 or more vectors. Determine optimal chain ratio for 3- and 4-chain molecules in CHO cells using multiple selection strategies and process optimization. Process development and optimization for batch and fed-batch bioreactor and shake flask expressions of stable CHO cell lines expressing complex multi-chain molecules. Characterization of stable CHO line copy number and mRNA transcript levels using ddPCR and related molecular tools. Apply targeted integration technologies using screening workflows, including FACS-based single-cell sorting to generate mini pools. Implement and leverage automation platforms and high-throughput workflows to increase efficiency. Contribute to data digitization efforts, including electronic data capture, analysis, and reporting. Troubleshoot challenges related to expression, stability, glycosylation, aggregation, and chain pairing. Purification and biophysical characterization of analytical scale expression samples, using analytical HPLC to evaluate titer, monomer, and chain pairing efficiency. Work independently on the design, execution, and interpretation of experimental results. Analyze, document, and report data concisely and rigorously. Handling stable CHO pools and cell lines including thaw, culture, expression and cryopreservation. ### Qualifications Qualifications: *Position will be hired based on level of experience and education Bachelors or Master’s in biology, chemistry, biochemistry or related field with typically 5+ (BS) or 2+ (MS) years of experience. Hands-on experience with cell culture and expression of monoclonal antibodies, bi-specifics and multi-specifics in CHO cells lines including thaw, culture, expression and cryopreservation. Prior experience in generation of stable CHO cell lines expressing complex multi-specific molecules. Prior experience in process development, process optimization, and automation. Experience with analytical characterization of multi-specifics desirable. Experience with targeted integration, FACS, and ddPCR desirable. Demonstrated proficiency in vector design is desirable. Prior experience in mammalian expression using Wave bioreactors desirable. Demonstrated proficiency in overcoming problems (i.e. poor chain pairing, low expression, aggregation, glycosylation) with challenging therapeutic multi-specific proteins desirable. Additional Information Applicable only to applicants applying to a position in any location with pay disclosure requirements under state or local law: ​ The compensation range described below is the range of possible base pay compensation that the Company believes in good faith it will pay for this roleat the time of this posting based on the job grade for this position. Individual compensation paid within this range will depend on manyfactors including geographic location, and we may ultimately pay more or less than the posted range. This range may be modified in the future. ​ We offer a comprehensive package of benefits including paid time off (vacation, holidays, sick), medical/dental/vision insurance and 401(k) to eligible employees.​ This job is eligible to participate in our short-term incentive programs. ​ Note: No amount of pay is considered to be wages or compensation until such amount isearned, vested, and determinable. The amount and availability of any bonus, commission, incentive, benefits, or any other form of compensation and benefits that areallocable to a particular employee remains in the Company's sole and absolute discretion unless and until paid and may be modified at the Company’s sole and absolutediscretion, consistent with applicable law. ​ AbbVie is an equal opportunity employer and is committed to operating with integrity, driving innovation, transforming lives and serving our community. Equal Opportunity Employer/Veterans/Disabled. US & Puerto Rico only - to learn more, visit [https://www.abbvie.com/join-us/equal-employment-opportunity-employer.html](https://www.abbvie.com/join-us/equal-employment-opportunity-employer.html) US & Puerto Rico applicants seeking a reasonable accommodation, click here to learn more: [https://www.abbvie.com/join-us/reasonable-accommodations.html](https://www.abbvie.com/join-us/reasonable-accommodations.html) ## At a glance - Posted by the employer: Not stated - First seen by OpenNash: Aug 20, 2026 - Last checked: Oct 18, 2026 - Listed for: 59 days[Apply on AbbVie’s careers site →](https://careers.abbvie.com/en/job/scientist-i-multi-specifics-expression-in-north-chicago-il-jid-30874) ## More jobs at AbbVie ### [Associate Director Principal Scientist I Precision Medicine Immunology In Waltham Ma Jid 33691](https://jobs.opennash.com/companies/abbvie/jobs/ffdfd3f4c1a23435c0fd/) ### [Associate Scientist Ii And Scientist I Labormitarbeiter Durchfuehrung Von Zellulaeren Und Binde Assa In Ludwigshafen Rp Jid 33925](https://jobs.opennash.com/companies/abbvie/jobs/33e65efbfb1162d356fd/) ### [Associate Scientist Ii In Worcester Ma Jid 32109](https://jobs.opennash.com/companies/abbvie/jobs/7ea82b7e858a1ae6ffd8/) ### [Associate Scientist Ii Scientist I Chemical Biology And Mass Spectrometry Technologies In North Chicago Il Jid 32701](https://jobs.opennash.com/companies/abbvie/jobs/b7d8fd9fab86c3a076a2/) ### [Associate Scientist Ii Scientist I Predictive Stability In North Chicago Il Jid 33510](https://jobs.opennash.com/companies/abbvie/jobs/3c8b062a51881a345245/) ## Similar jobs at other companies ### [Solutions Advisor (Multi-Level)](https://jobs.opennash.com/companies/fedex/jobs/b728fa9f863f6b9722b2/) FedEx ### [Strategy Planning - Multi Level](https://jobs.opennash.com/companies/fedex/jobs/0c0fb534dbaf802e2483/) FedEx ### [Oracle OCI Multi Cloud Engineer](https://jobs.opennash.com/companies/accenture/jobs/378e03b98536fd4a853a/) Accenture ### [Rad Tech Multi Modality](https://jobs.opennash.com/companies/munson-healthcare/jobs/df1e4c51ac2b8eacf07b/) Munson Healthcare ### [CDI – Ingénieur Fiabiliste Instrumentation Multi-Métiers (H/F/X)](https://jobs.opennash.com/companies/totalenergies/jobs/e8c04d628829dc1cf508/) TotalEnergies OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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