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John Sadler

John Sadler




My Portfolio Highlights

My New Workbook

The GitHub History of the Scala Language

My New Course

Introduction to Python

Algorithmic visionary, building bridges between data and knowledge.

My Work

Take a look at my latest work.


The GitHub History of the Scala Language


The Android App Market on Google Play


Investigating Netflix Movies and Guest Stars in The Office

DataCamp Course Completion

Take a look at all the courses I’ve completed on DataCamp.

My Work Experience

Where I've interned and worked during my career.

Indigo | Jul 2020 - Present

Scientist I, Bioprocessing (Upstream Process Development)

▪ Developed a high-throughput pipeline capable of screening 300+ wild-type and novel microorganisms per year. ▪ Designed defined media and screened process parameters for hundreds of wild-type strains spanning over 50 unique genera, optimizing for viable biomass production, stability, and physical properties. ▪ Hired, trained, and managed a team of research associates, technicians, and interns. ▪ Managed projects plans, timelines, and communication with internal and external collaborators for multiple concurrent projects. ▪ Configured a relational database to consolidate and manage data from distinct data streams. ▪ Developed workflows using Python, R, and SQL to clean, transform, verify, and upload data. ▪ Created dashboards using Spotfire to streamline data analysis and communication. ▪ Promoted a culture of safety and organization as department lead for facilities management, equipment commissioning and maintenance, and implementation of Lean/5S methodologies. ▪ Acted as technical lead for cross-functional activities with R&D, QA, and regulatory departments for product development, product registration, and assay standardization projects. ▪ Developed assays using biochemical analyzers, flow cytometry, UV-Vis spectrophotometry, phase contrast microscopy, and HPLC to monitor primary and secondary metabolism of microbial cultures. ▪ Designed a pipeline to assess long-term stability of liquid intermediates and final products. ▪ Developed and wrote laboratory standard operating procedures during early- stage growth. ▪ Authored all microbial fermentation technology transfer protocols and supervised scale-up activities at contract manufacturing organizations.
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Indigo | Jun 2018 - Jul 2020

Associate Scientist


Indigo | Jan 2017 - Jun 2018

Senior Research Associate


Indigo | Jun 2016 - Jan 2017

Research Associate


Novozymes | Oct 2013 - Mar 2016

Senior Research Assistant, Process Development and Optimization

▪ Designed and executed microbial submerged fermentation process optimization studies at the lab- and pilot-scales, using DOE to maximize limited throughput. ▪ Engaged in scale-down, scale-up, tech transfer, and process validation activities for submerged fermentation processes involving a diverse portfolio of gram-positive and gram-negative bacteria. ▪ Optimized new and existing processes for process efficiency, consistency, cost savings, and product efficacy. ▪ Developed and implemented analytical methods using flow cytometry, UV- Vis spectrophotometry, phase contrast microscopy, and GC-FID to monitor primary and secondary metabolism of microbial cultures. ▪ Created methods using JMP and Excel as semi-automated data collection, management, analysis, and communication tools.

WUVT-FM | Aug 2011 - May 2012

Promotions Director

▪ Led a team of 7-10 to coordinate and maintain relationships with venues, local businesses, musical artists, and graphic designers to promote the station’s numerous concerts, fundraisers, and other events. ▪ Designed innovative approaches to marketing using traditional and social media.

WUVT-FM | Jan 2011 - May 2012



My Education

Take a look at my formal education

Bachelor of Science (BS), BiologyVirginia Polytechnic Institute and State University | 2012

About Me

John Sadler

Applied microbiology and chemical engineering, upstream process development, branching out into data.

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