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Temporary Senior Scientist Jobs (NOW HIRING)

Senior Scientist

Riverside, CA · On-site

$95K - $130K/yr

Job Title Senior Scientist Location Riverside, CA US (Primary) Category Research, Development, and ... Duration may range from short-term temporary duty to extended support periods based on operational ...

Senior Scientist II

Bristol, PA · On-site

$99K - $120K/yr

Senior Scientist II has a key role in the PhysChem team supporting Performance & Care Techno ... temporary employees. The ability to work in cross-functional teams is important. You will bring:

Senior Scientist

California, MO · On-site

$100 - $130/hr

Prescient Edge is seeking a Senior Scientist opportunity to support a Federal Government client ... Duration may range from short-term temporary duty to extended support periods based on operational ...

Senior Scientist II

Bristol, PA · On-site

$99K - $120K/yr

Senior Scientist II has a key role in the PhysChem team supporting Performance & Care Techno ... temporary employees. The ability to work in cross-functional teams is important. You will bring:

Senior Scientist

Tarrytown, NY · On-site

$50 - $60/hr

Senior Scientist - Mass Spectrometry As a Senior Scientist in a cutting-edge mass spectrometry ... If eligible, the benefits available for this temporary role may include the following: * Medical ...

Senior Scientist

Tarrytown, NY · On-site

$50 - $60/hr

Sr. Scientist - Mass Spectrometry Book here for immediate information on this position: As a ... If eligible, the benefits available for this temporary role may include the following: * Medical ...

... computer, scientific, and organizational skills • A strong team player with excellent ... For temporary assignments lasting 13 weeks or longer, AllSTEM Connections is pleased to offer major ...

Temporary Sr. Business Solutions Analyst

Boston, MA · On-site

$100K - $129K/yr

We are seeking a highly skilled Temporary Sr. Business Solutions Analyst with strong data analysis ... Education: * Bachelor's degree in Computer Science, Information Systems, Data Analytics, or a ...

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Temporary Senior Scientist information

See salary details

$66.5K

$110.5K

$164.5K

How much do temporary senior scientist jobs pay per year?

As of Aug 28, 2026, the average yearly pay for temporary senior scientist in the United States is $110,545.00, according to ZipRecruiter salary data. Most workers in this role earn between $91,500.00 and $125,000.00 per year, depending on experience, location, and employer.

What cities are hiring for Temporary Senior Scientist jobs?

Cities with the most Temporary Senior Scientist job openings:

What are the most commonly searched types of Temporary Scientist jobs?

The most popular types of Temporary Scientist jobs are:

What states have the most Temporary Senior Scientist jobs?

States with the most job openings for Temporary Senior Scientist jobs include:

Infographic showing various Temporary Senior Scientist job openings in the United States as of August 2026, with employment types broken down into 1% Internship, 1% As Needed, 84% Full Time, 10% Part Time, and 4% Contract. Highlights an 84% Physical, 3% Hybrid, and 13% Remote job distribution, with an average salary of $110,545 per year, or $53.1 per hour.

Temp Senior Research Associate/Sr Scientist, Formulation and Delivery Sciences

Ionis Pharmaceuticals

Carlsbad, CA • On-site

$42.34 - $75.49/hr

Full-time

Posted 7 days ago


Job description

Headquartered in Carlsbad, California, and with offices in Boston, Massachusetts, and Dublin, Ireland, Ionis has been at work for more than three decades discovering medical breakthroughs that have redefined life for people with serious diseases. We’re pioneers in RNA-targeted medicines, and our platform continues to revolutionize drug discovery and transform lives for patients with unmet needs.  With multiple marketed medicines and a leading pipeline in neurology, cardiology and select areas of high patient needs, we continue to drive innovation in RNA therapies in addition to advancing new approaches in gene editing to provide greater value to patients and are well positioned financially to deliver on our strategic goals.

At Ionis, we pride ourselves on cultivating a challenging, motivating and rewarding environment that fosters innovation and scientific excellence. We know that our success is a direct result of the exceptional talents and dedication of our employees. 

With an unprecedented opportunity to change the course of human health, we look to add diverse individuals, skill sets and perspectives to our exceptional team. We continue to invest time, money and energy into making our onsite, hybrid and remote work environments a place where solid and lasting relationships are built and where our culture and employees can thrive. 

We’re building on our rich history, and we believe our greatest achievements are ahead of us. If you’re passionate about the opportunity to have meaningful impact on patients in need, we invite you to apply and join us. Experience and contribute to our unique culture while you develop and expand your career!

Temp Senior Research Associate/Sr Scientist, Formulation and Delivery Sciences

Hiring Manager: Bret Coldren

Location: Onsite - Carlsbad, CA

SUMMARY:

We seek an energetic and detail-oriented Sr. Research Associate or Sr. Scientist to support Ionis’s new gene editing franchise. This is an onsite laboratory-based role in nanoparticle formulations R&D for the intracellular delivery of RNA.  The successful candidate will synthesize research scale RNA-loaded lipid nanoparticles, perform physical-chemical characterizations, and assist with biological testing in rodents and/or cell culture.

RESPONSIBILITIES:

  • Meticulous hands-on laboratory work synthesizing and documenting a variety of RNA-loaded lipid nanoparticles using microfluidic mixing, dialysis, filtration, centrifugation, SEC, etc.
  • Perform particle analysis via Ribogreen, DLS, zeta potential, pKa determination, etc and potentially analyze lipids and RNA via HPLC.
  • Assist with routine rodent procedures to dose formulations and assess safety/activity.
  • Thoroughly document results in electronic lab notebooks and assist with analysis of data.
  • Assist in maintaining general laboratory organization and supplies.

REQUIREMENTS:

  • BS in life sciences, pharmaceutical sciences, chemical engineering, or related discipline with at least 5 yrs of relevant academic/industry laboratory experience (for Sr. RA level)
  • PhD in life sciences, pharmaceutical sciences, chemical engineering, or related discipline with at least 2 years of relevant academic/industry laboratory experience (for Sr. Scientist role).
  • Must have prior expertise in accurately synthesizing numerous bench-scale RNA-containing LNP batches using microfluidic mixing technologies and bench-scale purification.
  • Must have prior experience performing nanoparticle characterization using Ribogreen, DLS, Zeta potential, etc. Experience with analysis of lipids/RNAs via HPLC is a big plus.
  • Ability to learn and perform routine rodent procedures (eg., tail vein injection and necropsy)
  • A team player who can work both independently and with cross-functional teams in a fast-paced, entrepreneurial environment
  • Good organizational and written/verbal communication skills

For more information about Ionis and to apply for this position, please visit our website, http://www.ionis.com. Reference Requisition #TEMP 

The hourly pay scale for this position is $42.34/hour to $75.49/hour 

NO PHONE CALLS PLEASE. PRINCIPALS ONLY. 

Ionis Pharmaceuticals, Inc. and all its subsidiaries are proud to be EEO employers.