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Jefferson (Luiz Fonseca Da) Silva

QA Specialist

Jefferson Silva
Tallinn, Estonia

Experience

Apr 2025 - Present
11 months
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 7 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

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Pharmaceutical (16.5 years) and Healthcare (0.5 years).

Pharmaceutical
Healthcare

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Quality Assurance (16.5 years), Research and Development (13 years), Product Development (11.5 years), and Project Management (3 years).

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

Profile

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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 (QA), Research and Development (R&D), 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 (QA), Research and Development (R&D), 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.

How to hire Jefferson?

To hire Jefferson, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

600
450
300
150
Market avg: 390-550 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.