Jobs in Rahway, NJ

Merck

Full-time · Rahway, NJ · $68,000 – $107,000

This role involves hands-on setup, operation, and troubleshooting of sterile filling equipment and isolators in a pharmaceutical manufacturing environment. It suits technicians with manufacturing background who are comfortable with complex automated systems, GMP compliance, and shift work in a regulated environment.

Listed on Merck’s careers site · Apply there ↗

Merck

Full-time · Rahway, NJ · $68,000 – $107,000

This role involves setting up and operating sterile pharmaceutical filling equipment in a GMP-regulated environment, performing hands-on troubleshooting and maintenance to support drug product development. It suits experienced manufacturing technicians who are comfortable with complex automated systems and can work independently while collaborating across teams.

Listed on Merck’s careers site · Apply there ↗

Merck

Full-time · Rahway, NJ · $282,200 – $444,200

A senior oncology research leader will oversee the full lifecycle of breast cancer clinical trials and drug development programs, from early-stage design through post-market studies. This role suits experienced physicians or PhDs with substantial industry background who can manage complex research portfolios, work across cross-functional teams, and maintain deep scientific expertise in oncology.

Listed on Merck’s careers site · Apply there ↗

Merck

Full-time · Rahway, NJ · $156,900 – $247,000

A senior scientific leadership role directing the analytical characterization of biologic drugs, suitable for an experienced analytical chemist or biochemist ready to lead a team while developing advanced testing methods for complex protein-based medicines.

Listed on Merck’s careers site · Apply there ↗

Merck

Full-time · Rahway, NJ · $173,200 – $272,600

A leadership role in biopharmaceutical process development where you'll direct the creation of cell culture manufacturing processes from early development through commercial launch. This suits experienced bioprocess scientists ready to mentor teams and drive innovation across a pipeline of diverse therapeutic programs.

Listed on Merck’s careers site · Apply there ↗

Merck

Full-time · Rahway, NJ · $173,200 – $272,600

A Principal Scientist role focused on developing purification processes and downstream manufacturing strategies for biologic drug candidates in clinical development. This position suits experienced bioprocess engineers or chemical engineers with a track record in biologics manufacturing who want to influence process innovation and lead cross-functional teams at a major pharmaceutical company.

Listed on Merck’s careers site · Apply there ↗

Merck

Full-time · Rahway, NJ · $142,400 – $224,100

This role leads the development and optimization of mammalian cell culture processes for biotherapeutic drug manufacturing, from early-stage clinical material to commercial production. It suits experienced bioprocess engineers with a strong track record in upstream process development, cell line work, and the ability to collaborate across technical disciplines while advancing innovation in recombinant protein production.

Listed on Merck’s careers site · Apply there ↗

Merck

Full-time · Rahway, NJ · $129,000 – $203,100

This role manages international tax compliance and planning for a medical innovation company, handling cross-border structuring, regulatory filings, and tax provision work. It suits someone with deep experience in U.S. international tax rules and a track record of managing complex global tax matters in a corporate environment.

Listed on Merck’s careers site · Apply there ↗

Merck

Rahway, NJ

Listed on Merck’s careers site · Apply there ↗

Merck

Full-time · Rahway, NJ · $173,200 – $272,600

A senior scientist position developing cell culture manufacturing processes for biologics in clinical and commercial stages. This role suits experienced bioprocess engineers or biochemists who can lead technical strategy, mentor teams, and drive innovation in upstream development while managing complex cross-functional projects.

Listed on Merck’s careers site · Apply there ↗

Merck

Full-time · Rahway, NJ · $142,400 – $224,100

This role leads the development of mammalian cell culture manufacturing processes for biopharmaceutical drug candidates, from early clinical through commercial launch. It suits scientists with substantial hands-on upstream bioprocessing experience who can direct complex process optimization projects, mentor junior researchers, and collaborate across functions while maintaining strong external scientific visibility.

Listed on Merck’s careers site · Apply there ↗

Merck

Full-time · Rahway, NJ · $87,300 – $137,400

This role manages a company's global patent maintenance deadlines and fees, coordinating with vendors and legal teams to keep intellectual property rights active. It suits someone with five years of patent annuity experience who thrives on precision work across multiple jurisdictions and enjoys problem-solving around legal and procedural details.

Listed on Merck’s careers site · Apply there ↗

Merck

Full-time · Rahway, NJ · $310,900 – $489,400

This role leads clinical development strategy and execution for atherosclerosis medicines from Phase 2 through regulatory submission, managing cross-functional teams and external research collaborations. It suits physicians with 5+ years of drug development experience who want to guide late-stage trials and regulatory interactions while maintaining active engagement with scientific literature and key opinion leaders.

Listed on Merck’s careers site · Apply there ↗

Merck

Full-time · Rahway, NJ · $79,200 – $124,700

This role performs financial, operational, and IT audits for a large organization, executing audit procedures, analyzing control environments, and documenting findings across domestic and international engagements. It suits someone with accounting education and early audit experience who wants to build expertise in internal controls and risk assessment within a structured, methodical profession.

Listed on Merck’s careers site · Apply there ↗

Merck

Full-time · Rahway, NJ · $106,200 – $167,200

This role executes financial, operational, and IT audits within a major corporation's internal audit function, requiring a CPA with at least three years of accounting or audit experience. It suits candidates seeking to advance their audit career with significant client interaction and occasional team leadership responsibilities.

Listed on Merck’s careers site · Apply there ↗