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Aleksander Kowalski Email & Phone Number

Full Stack Engineer @ First Line Software | JavaScript, React, NodeJS at First Line Software
Location: Warsaw, Mazowieckie, Poland 6 work roles 1 school
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✓ Verified Jun 2026 3 data sources Profile completeness 86%

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Current company
First Line Software
Role
Full Stack Engineer @ First Line Software | JavaScript, React, NodeJS
Location
Warsaw, Mazowieckie, Poland
Company size
402 employees

Who is Aleksander Kowalski? Overview

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Quick answer

Aleksander Kowalski is listed as Full Stack Engineer @ First Line Software | JavaScript, React, NodeJS at First Line Software, a company with 402 employees, based in Warsaw, Mazowieckie, Poland. AeroLeads shows a matched LinkedIn profile for Aleksander Kowalski.

Aleksander Kowalski previously worked as Full Stack Engineer at First Line Software and Full Stack Developer | JavaScript | Typescript | React | Next.js | NodeJS | Express at Blazity. Aleksander Kowalski holds Bachelor'S Degree, Computer Science, Gpa: 3.4 from Lublin University Of Technology.

Company email context

Email format at First Line Software

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First Line Software

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Profile bio

About Aleksander Kowalski

Experienced Full Stack Developer with 8 years of professional experience in developing dynamic, high-quality, user-friendly Web applications.- Proficient in JavaScript, TypeScript, React, Next.js, Vue.js, NodeJS, Express, Python, Django, PHP, and Laravel.- Adept at using Docker, Kubernetes, and AWS for cloud services and containerization.- Specialized in e-commerce and SaaS industries. Led the development of a social media platform for music, movie sharing using React and NodeJS, improving user engagement by 40%.- Successfully mentored junior developers and collaborated in cross-functional teams, ensuring project milestones were met on time.- Increased application performance by 20% through optimized code and efficient use of AWS services.- Implemented real-time features using WebSockets, resulting in a 20% increase in user retention.- Excellent problem-solving skills, adaptable to agile Scrum-based environments.Strong communicator with a knack for simplifying complex technical concepts for non-technical stakeholders.

Current workplace

Aleksander Kowalski's current company

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First Line Software
First Line Software
Full Stack Engineer @ First Line Software | JavaScript, React, NodeJS
cambridge, massachusetts, united states
Website
firstlinesoftware.com
Employees
402
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6 roles

Aleksander Kowalski work experience

A career timeline built from the work history available for this profile.

Full Stack Developer | Javascript | Typescript | React | Next.Js | Nodejs | Express

Blazity

Warsaw, Mazowieckie, Poland

Apr 2021 - Oct 2022

Full Stack Developer | React | Nodejs | Express |

Dashbouquet Development

Warsaw, Mazowieckie, Poland

Oct 2019 - Feb 2021

Full Stack Developer

Sirocco
Apr 2017 - Nov 2017

Full Stack Developer

Sirocco
Sep 2016 - Mar 2017
Team & coworkers

Colleagues at First Line Software

Other employees you can reach at firstlinesoftware.com. View company contacts for 402 employees →

AV Artem Vilnevchits Artem Vilnevchits Colleague at First Line SoftwareBar, Montenegro, Montenegro View → TS Tagir Satlykov Tagir Satlykov Colleague at First Line SoftwarePodgorica, Montenegro, Montenegro View → DA Dmitrii Andreev Dmitrii Andreev Colleague at First Line SoftwarePodgorica, Montenegro, Montenegro View → AD Alexandra Dickinson Alexandra Dickinson Colleague at First Line SoftwareBuffalo-Niagara Falls Area, United States View → ВМ Валентина Москвитина Валентина Москвитина Colleague at First Line SoftwareBudva, Montenegro, Montenegro View → AR Alisa Razumova Alisa Razumova Colleague at First Line SoftwareBudva, Montenegro, Montenegro View → MH Martin Heidecker Martin Heidecker Colleague at First Line SoftwarePrague, Czechia, Czech Republic View → SR Saleem Raja Saleem Raja Colleague at First Line SoftwareIndia, India View → NM Natalie Miller Natalie Miller Colleague at First Line SoftwarePrague, Czechia, Czech Republic View → VK Vitalii Konnov Vitalii Konnov Colleague at First Line SoftwareBudva, Montenegro, Montenegro View →
1 education record

Aleksander Kowalski education

  • Lublin University Of Technology
    Lublin University Of Technology
    Gpa: 3.4
FAQ

Frequently asked questions about Aleksander Kowalski

Quick answers generated from the profile data available on this page.

What company does Aleksander Kowalski work for?

Aleksander Kowalski works for First Line Software.

What is Aleksander Kowalski's role at First Line Software?

Aleksander Kowalski is listed as Full Stack Engineer @ First Line Software | JavaScript, React, NodeJS at First Line Software.

Where is Aleksander Kowalski based?

Aleksander Kowalski is based in Warsaw, Mazowieckie, Poland while working with First Line Software.

What companies has Aleksander Kowalski worked for?

Aleksander Kowalski has worked for First Line Software, Blazity, Dashbouquet Development, and Sirocco.

Who are Aleksander Kowalski's colleagues at First Line Software?

Aleksander Kowalski's colleagues at First Line Software include Artem Vilnevchits, Tagir Satlykov, Dmitrii Andreev, Alexandra Dickinson, and Валентина Москвитина.

How can I contact Aleksander Kowalski?

You can use AeroLeads to view verified contact signals for Aleksander Kowalski at First Line Software, including work email, phone, and LinkedIn data when available.

What schools did Aleksander Kowalski attend?

Aleksander Kowalski holds Bachelor'S Degree, Computer Science, Gpa: 3.4 from Lublin University Of Technology.

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