Jefferson Silva - QA Specialist

Q: Where is Jefferson based?

Jefferson is based in Tallinn, Estonia .

Q: What languages does Jefferson speak?

Jefferson speaks the following languages: Portuguese (Native), English (Advanced) .

Q: How many years of experience does Jefferson have?

Jefferson has at least 17 years of experience. During this time, Jefferson has worked in at least 8 different roles and for 8 different companies . The average length of individual experience is 2 years and 1 month . Note that Jefferson may not have shared all experience and actually has more experience.

Q: What is Jefferson's latest experience?

Jefferson's most recent position is QA Specialist at Interchemie Werken de Adelaar Eesti .

Q: What companies has Jefferson worked for in recent years?

In recent years, Jefferson has worked for Interchemie Werken de Adelaar Eesti , EPHAR , Vitamedic Indústria Farmacêutica LTDA , and Brainfarma/Hypermarcas .

Q: Which industries is Jefferson most experienced in?

Jefferson is most experienced in industries like Pharmaceutical and Healthcare .

Q: Which business areas is Jefferson most experienced in?

Jefferson is most experienced in business areas like Quality Assurance , Research and Development , and Product Development . Jefferson also has some experience in Project Management .

Q: Which industries has Jefferson worked in recently?

Jefferson has recently worked in industries like Pharmaceutical .

Q: Which business areas has Jefferson worked in recently?

Jefferson has recently worked in business areas like Quality Assurance , Research and Development , and Product Development .

Recommended expert

Tallinn, Estonia

Experience

Apr 2025 - Present

1 year

Estonia

QA Specialist

Interchemie Werken de Adelaar Eesti

Drafting and reviewing SOPs (EU GMP Annex 1)
Performing investigations of deviations and events (EU GMP Chapter 8)
Supporting audit readiness and CAPA implementation
Creation of batch manufacture review (EU GMP Annex 1)

Jan 2022 - Mar 2025

3 years 3 months

Brazil

Laboratory Manager

EPHAR

Led laboratory of pharmaceutical equivalence, QC, and analytical development
Managed 80-person team across 3 divisions
Conducted projects with method development and analytical validations, stability studies, forced degradation studies, dissolution and other techniques (HPLC, UHPLC, GC, spectrophotometers, ICP, LC-MS, titration)
Conducted pre-formulation projects (XRD, TGA, DSC, MS, particle size)
Oversaw project budgets and performance indicators
Cost management
KPI system
Analytical documentation program
Client communication plan

Jan 2017 - Jan 2022

5 years 1 month

Brazil

Analytical Development Manager

Vitamedic Indústria Farmacêutica LTDA

Oversaw all analytical projects for registration and post-registration
Analytical method development and validation for new product support (dissolution, stability, indicated methods, forced degradation studies, others)
Pre-formulation (XRD, TGA, DSC, MS, particle size)
Led nitrosamines and portfolio harmonization programs
Implemented LIMS and new analytical R&D lab infrastructure
Risk management (ICH Q3D, USP <232>/<233>)
Dissolution method development

Jul 2016 - Jan 2017

7 months

Analytical Development Supervisor

Vitamedic

Supervised validation, stability, and dissolution studies
Analytical method development and validation for new product support and post-registration (dissolution, forced degradation studies, others)

Nov 2015 - Jul 2016

9 months

Senior Analytical Development Analyst

Fresenius Kabi

DMF analysis to support manufacturer qualification
Analytical method development and validation for new product support (UHPLC, HPLC, GC, dissolution profile)

Aug 2014 - Present

11 years 8 months

Analytical Researcher

Brainfarma/Hypermarcas

Developed methods and performed full API characterization to develop new associations (incremental innovation)
Developed and transferred HPLC and UPLC methods

Oct 2007 - Jul 2011

3 years 10 months

Senior QC Analyst

Teuto Brasileiro

QC using HPLC, UV, IR, titration, potentiometry
Method validation and pharmaceutical equivalence studies

May 2006 - Oct 2007

1 year 6 months

Chemical Analyst

Genoma Laboratory

Stability testing of pharmaceutical products
Release tests for QC
Method validation

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Pharmaceutical and Healthcare.

Pharmaceutical

Healthcare

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Quality Assurance, Research and Development, Product Development, and Project Management.

Quality Assurance

Research and Development

Product Development

Project Management

Summary

Experienced QA and Analytical Development Specialist with over 19 years in the pharmaceutical industry, focusing on GMP compliance, analytical Development, regulatory strategies, and quality systems. Proven leadership in managing cross-functional teams and laboratory operations. Strong knowledge of EU GMP, ICH and ANVISA`s guidelines, method validation, and quality risk management. Seeking to contribute technical and strategic expertise to international pharmaceutical organizations.

Analytical Development Manager or QC Manager

Languages

Portuguese

Native

English

Advanced

Education

Oct 2009 - Jun 2011

State University of Goiás

Master in Organic Synthesis · Organic Synthesis · Brazil

Oct 2004 - Jun 2008

State University of Goiás

Bachelor of Science in Chemistry · Chemistry · Brazil

Statistics

Experience

Total positions 8

Experience in Pharmaceutical 17 y

Avg length 3 y 5 m

Longest experience 11 y 7 m

Global Experience

Countries worked in 2 (Brazil, Estonia)

Primary country Brazil

Expertise

Recent roles QA Specialist, Laboratory Manager, Analytical Development Manager

Main industries Pharmaceutical, Healthcare

Main business areas Quality Assurance, Research and Development, Product Development

Qualifications

Highest degree Master

Profile

Created

November 2025

Last Update

November 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Jefferson based?

Jefferson is based in Tallinn, Estonia.

What languages does Jefferson speak?

Jefferson speaks the following languages: Portuguese (Native), English (Advanced).

How many years of experience does Jefferson have?

Jefferson has at least 17 years of experience. During this time, Jefferson has worked in at least 8 different roles and for 8 different companies. The average length of individual experience is 2 years and 1 month. Note that Jefferson may not have shared all experience and actually has more experience.

What roles would Jefferson be best suited for?

Based on recent experience, Jefferson would be well-suited for roles such as: QA Specialist, Laboratory Manager, Analytical Development Manager.

What is Jefferson's latest experience?

Jefferson's most recent position is QA Specialist at Interchemie Werken de Adelaar Eesti.

What companies has Jefferson worked for in recent years?

In recent years, Jefferson has worked for Interchemie Werken de Adelaar Eesti, EPHAR, Vitamedic Indústria Farmacêutica LTDA, and Brainfarma/Hypermarcas.

Which industries is Jefferson most experienced in?

Jefferson is most experienced in industries like Pharmaceutical and Healthcare.

Which business areas is Jefferson most experienced in?

Jefferson is most experienced in business areas like Quality Assurance, Research and Development, and Product Development. Jefferson also has some experience in Project Management.

Which industries has Jefferson worked in recently?

Jefferson has recently worked in industries like Pharmaceutical.

Which business areas has Jefferson worked in recently?

Jefferson has recently worked in business areas like Quality Assurance, Research and Development, and Product Development.

What is Jefferson's education?

Jefferson holds a Master in Organic Synthesis from State University of Goiás and a Bachelor in Chemistry from State University of Goiás.

What is the availability of Jefferson?

Jefferson is immediately available part-time for suitable projects.

What is the rate of Jefferson?

Jefferson's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.