Leonardo Schneider - Physicist, Biophysical scientist, Microfluidics engineer, Programmer, and Full-stack Developer
About me
I am a full-stack developer with solid experience in Vue 3, TypeScript, and QA. I hold a Master's and Ph.D. in Physics from the Federal University of Paraná. For over 12 years, I worked in multidisciplinary teams alongside engineers, biologists, chemists, and physicians, gaining more than 10 years of experience in microscopy, photonics, biophysics, prototyping, and microfluidics engineering. Since 2019, I transitioned into the programming world, where I have been exploring my passion for frontend development and data analysis. My background in Physics has sharpened my critical and analytical thinking, making me an adaptable and innovative professional across various fields and teams.
Education
Post-doctoral - Physics - 2016
(Federal) University of São Paulo (USP)
PhD - Physics - 2014
Federal University of Paraná (UFPR)
MSc - Physics - 2010
Federal University of Paraná (UFPR)
BSc - Physics - 2008
Federal University of Paraná (UFPR)
Developer Career Highlights
· Over 3 years of experience in frontend development, specializing in Vue 3 and Angular.
· Developed and launched two full-scale marketplaces from scratch.
· Proficient in QA, with experience in E2E and manual testing.
· Authored Python scripts to optimize and streamline development processes.
· Worked for over a year as a frontend developer for a Japanese company, contributing to both marketplace and proprietary applications.
· Strong background in physics, enhancing critical thinking and problem-solving abilities in software development.
· Passionate about continuous learning, with experience in JavaScript, TypeScript, Nest.js, and other modern web technologies.
Summary of Qualifications
· Over 12 years of experience in multidisciplinary research and development.
· 8 scientific articles published and 3 patents.
· Strong entrepreneurial spirit with excellent communication skills, both with colleagues and customers.
· Published 1 programming package on the npm platform.
· Extensive experience working in multidisciplinary teams, collaborating with engineers, biologists, chemists, and physicians.
· Experience in student guidance and mentoring.
· Advanced proficiency in English and native in Portuguese.
Programmer & Developer
In my current job I am developing frontend and backend web services for agriculture applications. I addition to using HTML5, CSS, and JavaScript, I make use of Angular and NesJS. The dynamical interfaces collect data from plague traps on farms for better pest controlling and environmental caring. I also write scripts in Python3 and code in TypeScript. In my free time I use to learn and practice programming and I develop personal applications, that are in my GitHub.
Biophysical scientist
I have worked with groups of biochemist and physicians to improve the brazilian popular health system, implementing new diagnostics approaches and new methods for detection of sexual and tropical diseases. My experience in fluorescence techniques and single molecule spectroscopy allowed me to consult on a variety of research projects when I was member of FotoNanoBio Group in Brazil.
Physicist
Nothing gives me greater pleasure than working with different and new things, principally something that I must learn at its very first time, therefore this is a challenging work and we must keep in mind that the creativity is one of the best tool for doing it. I have done work in many branches of physics, such as computational quantum chemistry, polymeric surface superhydrophobicity, spectroscopy, microscopy and microfluidics.
Microfluidics engineer
I have developed microfluidic devices for diagnostic applications. I prototyped new designs for centrifugal devices and developed a new lateral flow device, as well as the reading machine that performs the clinical analysis of detection of numerous diseases obtained by the lateral flow device. I have extensive experience with CorelDRAW® software and rapid prototyping by CNC laser ablation micromachining.
Fluorescence Specialist
In my post-doc I worked with natural compounds, also with SUVs and GUVs, using UV-Vis, Absorption Spectroscopy, Fluorescence Lifetime Imaging (FLIM) and Fluorescence Correlation Spectroscopy (FCS) in studies of these materials. In FotoNanoBio Group I worked with Surface-enhanced Raman spectroscopy (SERS) to identify the mechanism of activity of some antibiotics on resistant bacteria. In the theoretical area I worked with modelling of electronic structures in atomic and molecular physics and semi-empirical and ab initio calculations, using programs such as Gaussian and GAMESS.
PROJECTS
Studied of Photophysical Properties of Flavonoids Extracted from Syngonanthus nitens, the Golden Grass | 2016 – 2018
USP, Ribeirão Preto, São Paulo – Brazil
During my PhD, I contributed to investigate natural extracts and search possible applications. My main role was the complete characterization of the extract of Golden Grass flavonoids and learn advanced fluorescence techniques. I ended up discovering that golden grass has incredible antioxidant potential and can be used in the pharmaceutical industry.
✓ Project Management
✓ Time-resolved Confocal Fluorescence Microscopy
✓ Fluorescence Lifetime Imaging
✓ Fluorescence correlation spectroscopy (FCS)
✓ UV/Visible spectroscopy
✓ SUVs production
Diagnostic System Development | 2013 – 2015
IBMP, Curitiba, Paraná – Brazil
In collaboration of IBMP and UFPR, we developed a novel diagnostic system for point-of-care testing, or laboratory use, or performed in point-of-need. We created a new design concept, we refined the internal structures, and we designed the overall electronics of the equipment. From this project, it resulted a software copyright and a patent that was entirely written by myself.
✓ Project Management
✓ Chip Design
✓ Diagnostic System Development
✓ Laser Ablation Prototyping
✓ UV/Visible spectroscopy
✓ Fourier-transform infrared spectroscopy (FTIR)
✓ Development of laser ablation nanoparticles
✓ Dynamic Light Scattering (DLS)
✓ Lateral Flow
✓ Patent Writing
Microfluidic Chip Development | 2010 – 2013
IBMP, Curitiba, Paraná – Brazil
I completely characterized the laser ablation equipment that produced the microfluidic chips. Furthermore, I designed, produced, and tested the microfluidic chips. The turning point was the optimised geometry stopvalves calculation using MatLab. I discovered the exact chip rotation that was capable to produce the ideal pressure to fill all the microfluidic channels before the same-time flow purging. Moreover, I supervised interdisciplinary research groups at large meetings and performed laboratory measurements.
✓ Project Management
✓ MATLAB
✓ Chip Design
✓ CorelDraw
✓ Laser Ablation Prototyping
✓ Plasma Etching
✓ Scanning Electron Microscopy (SEM)
Oil-water separation using superhydrophobic surfaces | 2007 – 2008
UFPR, Curitiba, Paraná – Brazil
Throughout my graduate work, I worked on the development and characterization of superhydrophobic surfaces for oil-water separation. In this project we could measure an incredible contact angle of 179° over the Polytetrafluoroethylene cured coating due the use of electrospray/electrospinning technique.
✓ Electrospray/Electrospinning Technique
✓ Atomic Force Microscopy (AFM)
✓ Superhydrophobic surfaces characterization
✓ Goniometer
✓ Profilometer
✓ Plasma Etching
✓ Scanning Electron Microscopy (SEM)
PUBLICATIONS
Programming Packages
1. ndvi-gee - It is a TypeScript library for acquiring NDVI (normalized difference vegetation index) images with few clouds from a satellite database from Google Earth Engine and it returns a promise fulfilled with an object of interesting data. (2021)
PAPERS
1. Bertallo, Camila R. S., Leonardo S. Berlim, Danilo S. Olivier, Thais R. Arroio, Amando S. Ito, and Giuliano C. Clososki. "Synthesis and photophysical properties of 2-aryl-5-carbonyl indolizines." Dyes and Pigments, 198, 109996. 2022
Google Mycitation: 9
1dx.doi.org/10.1016/j.dyepig.2021.1099962. Barroso, Rafael P., Leonardo S. Berlim, Amando S. Ito, and Antonio J. Costa‐Filho. "In vitro antioxidant properties of golden grass (Syngonanthus nitens) by electron paramagnetic resonance." Food science & nutrition 7, no. 4, 2019: 1353-1360.
Google Mycitation: 9
Web of Science Citations: 5
doi.org/10.1002/fsn3.9693. Berlim, L.S., Thomazi, F., Burkarter, E., Marino, B., Eliana, C., Saul, C.K., Ito, A.S. and Dartora, C.A. Modification of Optical and Electrical Characteristics of PEDOT: PSS by Umbelliferone Addition: Optical and Electrical Characterization of Umbelliferone Doped PEDOT: PSS for Photovoltaic Applications. Current Nanoscience, 14(5), pp.403-409. 2018.
Google Mycitation: 2
dx.doi.org/10.2174/15734137146661802221309314. Berlim, L.S., Bezerra Jr, A.G., Pazin, W.M., Ramin, T.S., Schreiner, W.H. and Ito, A.S. Photophysical properties of flavonoids extracted from Syngonanthus nitens, the golden grass. Journal of Luminescence, 194, pp.394-400. 2018.
Google Mycitation: 18
Web of Science Citations: 9
dx.doi.org/10.1016/j.jlumin.2017.10.0405. Berlim, L.S.; Gonçalvez, H.A.; de Oliveira, V.S.; Mattoso, N.; Prudente, A.S.; Bezerra, A.G.; Schreiner, W.H., Syngonanthus nitens: Why it looks like spun gold. Industrial Crops and Products (Print), v. 52, p. 597-602, 2014.
Google Mycitation: 6
Web of Science Citations: 3
SCOPUS Citations: 1
dx.doi.org/10.1016/j.indcrop.2013.11.0306. Turchetti, D.A.; Rodrigues, P.C.; Berlim, L.S.; Zanlorenzi, C.; Faria, G.C.; Atvars, T.D.Z.; Schreiner, W.H.; Akcelrud, L.C., Photophysical properties of a fluorene bipyridine copolymer and its complexes with europium. Synthetic Metals, v. 162, p. 35-43, 2012.
Google Mycitation: 29
Web of Science Citations: 23
SCOPUS Citations: 12
dx.doi.org/10.1016/j.synthmet.2011.11.0057. Rodrigues, Paula C.; Berlim, Leonardo S.; Azevedo, Diego; Saavedra, Nestor C.; Prasad, Paras N.; Schreiner, Wido H.; Atvars, Teresa D. Z.; Akcelrud, Leni., Electronic Structure and Optical Properties of an Alternated Fluorene Benzothiadiazole Copolymer: Interplay between Experimental and Theoretical Data. The Journal of Physical Chemistry. A, v. 116, p. 3681-3690, 2012.
Google Mycitation: 40
Web of Science Citations: 24
SCOPUS Citations: 14
dx.doi.org//10.1021/jp211042v8. Burkarter, E.; Berlim, L. S.; Schreiner, W. H.; Saul, C. K., Spinning droplets on superhydrophobic surfaces. Physics of Fluids (1994), v. 22, p. 012102, 2010.
Google Mycitation: 2
Web of Science Citations: 1
dx.doi.org/10.1063/1.3290992