Stefan Chiorescu - Senior Android Engineer

Q: Where is Stefan based?

Stefan is based in Bucharest, Romania and prefers 100% remote projects.

Q: What languages does Stefan speak?

Stefan speaks the following languages: Romanian (Native), English (Advanced) .

Q: How many years of experience does Stefan have?

Stefan has at least 10 years of experience. During this time, Stefan has worked in at least 6 different roles and for 6 different companies . The average length of individual experience is 1 year and 5 months . Note that Stefan may not have shared all experience and actually has more experience.

Q: What is Stefan's latest experience?

Stefan's most recent position is Senior Android Engineer at Printec Group .

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

In recent years, Stefan has worked for Printec Group , Zitec , Sliide , baza7 , and Avira Romania .

Q: Which industries is Stefan most experienced in?

Stefan is most experienced in industries like Information Technology (IT) , Professional Services , Media, and Entertainment and Publishing . Stefan also has some experience in Banking and Finance , Retail , and Healthcare .

Q: Which business areas is Stefan most experienced in?

Stefan is most experienced in business areas like Information Technology (IT) , Product Development , and Human Resources (HR) . Stefan also has some experience in Quality Assurance (QA) .

Q: Which industries has Stefan worked in recently?

Stefan has recently worked in industries like Professional Services , Information Technology (IT) , Media, and Entertainment and Publishing .

Q: Which business areas has Stefan worked in recently?

Stefan has recently worked in business areas like Information Technology (IT) , Product Development , and Human Resources (HR) .

Recommended expert

Bucharest, Romania

Experience

Mar 2024 - Present

2 years

Senior Android Engineer

Printec Group

I entered the Fintech field by joining the core team that builds the framework which holds the base for all major products.
The perspective of the code is completely different as there is no room for mistake in the backbone of all mobile products.
Even though security and app stability are a must, the team was already keeping an eye on Android latest tech stack and some of them were already used.
I am excited to work on products that exceed the mobile phones universe and I embrace the challenge of building flexible and robust applications while maintaining stability and security at maximum level.

Oct 2023 - Mar 2024

6 months

Senior Android Engineer

Zitec

I joined Zitec for a fresh new project in the medical field and created the project from scratch, determining every technical aspect including architecture, coding principles and standards, libraries, project structure and design patterns.
It is a challenge in the forever changing mobile development field to come up with the right approach based on the project type, client needs and timeline.
We opted for a modern tech stack including Jetpack Compose, Material3, MVVM+, Clean Architecture, Retrofit, Moshi, Hilt, Coroutines, Flows and Room.

Mar 2021 - Aug 2023

2 years 6 months

Android Engineer

Sliide

I became part of Sliide’s Android development team as my first contract role and was welcomed by a cool, diverse and dynamic team.
I really like the company's ambitions, goals and overall continuous growth.
Developed a range of projects, including SDKs and user-facing applications, showcasing strong versatility in Android engineering.
Successfully implemented entire features from inception to completion, demonstrating proficiency in delivering high-quality work.
Contributed expertise to firmware-level applications, developing robust and efficient software systems.
Utilized MVVM and MVI design patterns to architect scalable and maintainable codebases, enhancing development efficiency.
Actively embraced emerging technologies by transitioning XML-based components to Jetpack Compose, driving innovation and improving app usability.

Nov 2020 - Present

5 years 4 months

Member

baza7

I joined baza7 as one of the fastest growing community of freelancers.
Learning about the goals of the community and the unique and concise yet very well structured way of achieving my own made me even more eager to evolve in different ways, beyond pure technical skills.
Becoming a member made me take a huge step forward.

Mar 2019 - Mar 2021

2 years 1 month

Android Developer

Avira Romania

I transitioned to development by writing unit tests for current features and gradually took on more difficult tasks including redesigning and creating features.
Experimented with technologies such as Coroutines, LiveData and different types of layouts using Kotlin as the main programming language.
Contributed on several projects:
Avira Antivirus 2021: Redesigned or created features using the MVVM architectural pattern with LiveData, Coroutines, Room, OkHttp, ViewModel and Material Design Components.
Avira Home Guard: Worked on device discovery and networking protocols implementation.
SafeThings: Implemented communication between the application and the router.

Nov 2017 - Feb 2019

1 year 4 months

Mobile QA Automation Engineer/DevOps Engineer

Avira Romania

Joined Avira’s Mobile Unit as Mobile QA Automation Engineer, switching from Appium and Java to Espresso and Kotlin.
Created UI automation tests and integration tests for Avira’s main applications.
Developed a CI/CD framework from scratch using Bamboo and utilized Docker for scalability and mobility.
Engaged in the full process of creating a leading security application.

May 2016 - Nov 2017

1 year 7 months

QA Automation Engineer

American Greetings

Joined the QA Automation team to create and maintain automation scripts for the framework using Python, Selenium and Sauce Labs.
Collaborated directly with the development team and started creating an automation framework for mobile applications using Appium and Java.
Learned a lot about teamwork and responsibility and discovered a passion for mobile platforms.

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 Information Technology (6 years), Professional Services (5.5 years), Media and Entertainment (2.5 years), Banking and Finance (2 years), Retail (1.5 years), and Healthcare (0.5 years).

Information Technology

Professional Services

Media and Entertainment

Banking and Finance

Retail

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 Information Technology (9.5 years), Product Development (7 years), Human Resources (5.5 years), and Quality Assurance (3 years).

Information Technology

Product Development

Human Resources

Quality Assurance

Summary

As a Senior Android Engineer, I developed a range of projects, including SDKs and user-facing applications, showcasing my strong versatility and proficiency in Android engineering. I successfully implement entire features from inception to completion, delivering high-quality work that meets the client's expectations and requirements. I also contribute to firmware-level development, using my knowledge of Android Jetpack and Kotlin Coroutines to optimize performance and functionality.

I have 7 years of experience working in the engineering and technology fields, spanning from testing to deploying to developing. I have worked for companies like American Greetings, Avira and Sliide, where I helped with increasing test coverage, creating CI/CD pipelines, automating and optimizing processes, and adding new features to existing products. I am always eager to learn new skills and technologies, and to evolve in different ways beyond pure technical skills. I enjoy responsibility and accountability, as I always take ownership over my work. I value collaboration and contribution, as I work well with diverse and dynamic teams, and I support the company's ambitions and goals.

Skills

Model-view-viewmodel (Mvvm)
Kotlin Coroutines
Mobile Application Development

Languages

Romanian

Native

English

Advanced

Education

Oct 2013 - Jun 2018

Polytechnic University of Bucharest

Electronics, Telecommunications and Information Technology · Bucharest, Romania

Oct 2009 - Jun 2013

Al. I. Cuza Theoretical High School

Mathematics and Computer Science · Romania

Certifications & licenses

Ccna 1 Exploration - Network Sliide

Ccna 2 Exploration - Routing Protocols And Concepts

Ccna 3 Routing & Switching - Scaling Networks

Ccna 4 Routing & Switching - Connecting Networks

Profile

Created

November 2024

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Frequently asked questions

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

Where is Stefan based?

Stefan is based in Bucharest, Romania and prefers 100% remote projects.

What languages does Stefan speak?

Stefan speaks the following languages: Romanian (Native), English (Advanced).

How many years of experience does Stefan have?

Stefan has at least 10 years of experience. During this time, Stefan has worked in at least 6 different roles and for 6 different companies. The average length of individual experience is 1 year and 5 months. Note that Stefan may not have shared all experience and actually has more experience.

What roles would Stefan be best suited for?

Based on recent experience, Stefan would be well-suited for roles such as: Senior Android Engineer, Android Engineer, Member.

What is Stefan's latest experience?

Stefan's most recent position is Senior Android Engineer at Printec Group.

What companies has Stefan worked for in recent years?

In recent years, Stefan has worked for Printec Group, Zitec, Sliide, baza7, and Avira Romania.

Which industries is Stefan most experienced in?

Stefan is most experienced in industries like Information Technology (IT), Professional Services, Media, and Entertainment and Publishing. Stefan also has some experience in Banking and Finance, Retail, and Healthcare.

Which business areas is Stefan most experienced in?

Stefan is most experienced in business areas like Information Technology (IT), Product Development, and Human Resources (HR). Stefan also has some experience in Quality Assurance (QA).

Which industries has Stefan worked in recently?

Stefan has recently worked in industries like Professional Services, Information Technology (IT), Media, and Entertainment and Publishing.

Which business areas has Stefan worked in recently?

Stefan has recently worked in business areas like Information Technology (IT), Product Development, and Human Resources (HR).

What is Stefan's education?

Stefan attended Polytechnic University of Bucharest for Electronics, Telecommunications and Information Technology.

Does Stefan have any certificates?

Stefan has 4 certificates. Among them, these include: Ccna 1 Exploration - Network Sliide, Ccna 2 Exploration - Routing Protocols And Concepts, and Ccna 3 Routing & Switching - Scaling Networks.

What is the availability of Stefan?

Stefan is immediately available full-time for suitable projects.

What is the rate of Stefan?

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