Postdoctoral Scientist

Susquehanna University; Selinsgrove (Snyder County); On-site; USD 60,000 - 75,000; Full time

Job summary

Susquehanna University seeks a highly motivated Postdoctoral Scientist for a two-year position funded by an NSF grant. The successful candidate will join the P-MixSwitch project, collaborating with the University of Arizona to study how small marine mixoplankton switch between photosynthesis and predation.

The role involves wet-lab experiments, transcriptomic analyses, bioinformatics, manuscript preparation, conference talks, and mentoring undergraduates.

Qualifications

• Ph.D. in Biology, Microbial Ecology, Biological Oceanography, Molecular Biology, Genomics, or a related field required.
• Experience with molecular biology techniques and/or microbial culturing is required.
• Experience with transcriptomics, RNA sequencing, and/or bioinformatics is preferred.
• Experience with data analysis in R or Python preferred.

Responsibilities

• Collaborate with Susquehanna University and the University of Arizona researchers.
• Conduct laboratory experiments with algal cultures and RNA extractions.
• Analyze transcriptomic datasets using bioinformatics approaches and prepare manuscripts.
• Present findings at scientific conferences and mentor undergraduate researchers.

Skills

Molecular biology

Transcriptomics

RNA sequencing

Bioinformatics

R

Python

Data analysis

Independent research

Communication

Education

Ph.D. in Biology or related field

Tools

RNA extraction

Job description

Postdoctoral Scientist

Job Type: Faculty - Full-Time Benefits Eligible

FLSA: Exempt

Hours per week: 40

Number of months: 12

Location: Selinsgrove, PA

Closing Date: 10/15/2026 11:59 PM Eastern

About Susquehanna

Susquehanna University is the future-ready institution for today, invested in cultivating intellectual grounding, active learning and global citizenship for all students. Renowned as one of the finest U.S. national liberal arts colleges, Susquehanna inspires and challenges 2,200 enterprising, bright-minded students studying the arts, business, humanities and sciences. Our students seize opportunities through exceptional worldwide internships, expert-guided research and an acclaimed study-abroad program, leading to a transformative education that empowers each graduate to realize their unique potential and lead a successful and meaningful life.

The Susquehanna River Valley with its fresh air and overall pleasant year-round climate, provides four distinct seasons amidst a backdrop of vibrant autumn foliage, occasional winter snowfalls, flower-filled springs and warm summer evenings illuminated by fireflies. Nearby outdoor recreational areas for hiking, kayaking, fishing and skiing - and the bustling cultural and commerce hubs of New York City, Washington D.C., Baltimore and Philadelphia within a three-hour drive - present abundant opportunities for learning and discovery.

Job Summary

Susquehanna University seeks a highly motivated Postdoctoral Scientist for a two-year position supported by a collaborative National Science Foundation grant. The successful candidate will join the P-MixSwitch project, a collaboration between Susquehanna University and the University of Arizona, investigating the physiological and genetic mechanisms that enable small marine mixoplankton to switch between photosynthetic and predatory lifestyles.

The Postdoctoral Scientist will work with investigators and research personnel at both institutions in an interdisciplinary research environment integrating microbial ecology, physiology, molecular biology, and bioinformatics. The position will involve laboratory experiments, molecular and transcriptomic analyses, bioinformatics, manuscript preparation, conference presentations, and mentoring undergraduate researchers. This position is defined as an exempt position under FLSA regulations.

Specific Responsibilities

• Collaborate with researchers at Susquehanna University and the University of Arizona.
• Spend approximately one to two months per year in Tucson, Arizona, as part of the collaborative research effort.
• Assist in conducting laboratory experiments with algal cultures.
• Perform RNA extractions and prepare samples for transcriptomic analyses.
• Analyze transcriptomic datasets using bioinformatics approaches.
• Contribute to manuscript preparation and presentation of research findings at scientific conferences.
• Assist in mentoring undergraduate researchers.

Minimum Qualifications

Education: Ph.D. in Biology, Microbial Ecology, Biological Oceanography, Molecular Biology, Genomics, or a related field required.

Experience: Experience with molecular biology techniques and/or microbial culturing is required. Experience with transcriptomics, RNA sequencing, and/or bioinformatics is preferred. Experience with data analysis in R, Python, or related platforms preferred.

Knowledge, Skills, Abilities

• Knowledge of microbial ecology, phytoplankton, or protist biology.
• Strong quantitative and analytical skills.
• Ability to conduct research independently and collaboratively.
• Ability to communicate clearly and effectively in written and verbal formats.
• Ability to work effectively with researchers and research personnel across institutions and disciplines.

Additional Information for Applicant

NSF Research Security Training certification is required. Candidates who do not currently hold this certification must complete the training prior to the start of the position.

About the P-MixSwitch Project

Mixoplankton are ecologically important eukaryotic microorganisms that acquire energy and nutrients through both photosynthesis (phototrophy) and prey consumption (phagotrophy). This dual nutritional strategy allows mixoplankton to play a critical role in global carbon and nutrient cycling. However, the environmental and cellular factors that regulate transitions between phototrophic and phagotrophic modes remain poorly understood.

The P-MixSwitch project seeks to uncover the mechanisms underlying this metabolic flexibility by tracking carbon and phosphorus fluxes through nutrient uptake, photosynthetic carbon fixation, and phagotrophic ingestion of prey. Using physiological, molecular, and transcriptomic approaches, the project will characterize the cellular and subcellular changes associated with trophic switching in ecologically important prasinophyte mixoplankton. This work will advance understanding of the role of marine mixoplankton in carbon cycling within oligotrophic ocean ecosystems.

Research Environment

The Charvet Lab at Susquehanna University uses molecular biology and bioinformatics approaches to investigate genes and pathways involved in mixoplankton phagotrophy under varying environmental conditions. As part of the P-MixSwitch project, the Postdoctoral Scientist will participate in collaborative experimental work with the University of Arizona, followed by RNA extraction, transcriptome sequencing, and gene expression analyses of key prasinophyte strains.

This is a full-time, two-year postdoctoral appointment funded by the National Science Foundation, with an anticipated start date of January 2027. As a grant-funded position, the salary is established by the grant award and is not negotiable.

Review of applications will begin on October 15, 2026.

Questions regarding the position should be directed to Sophie Charvet at [e-mail].