UpstaffSign up
Andrew B
🇵🇱Poland (UTC+02:00)
Created AtUpstaffer since December, 2022
Book a Call Download Profile PDF

Andrew B — Senior Frontend /Senior Full-Stack Developer

Expertise in Front-End Web.

 Last verified on March, 2026

Bio Summary

- 5 years of experience as a Middle React.js Developer
- He has experience with web interfaces and react.js and node.js technologies. Experience with PWA on projects, also worked with PHP, C++, C#, and Android development.
- Upper-Intermediate English
- Available ASAP

Technical Skills

Programming Languages C#, JavaScript, PHP
.NET Platform ASP.NET MVC, Entity Framework, WPF
JavaScript Frameworks Express, jQuery, NestJS, Next.js, Node.js, React, Vue.js
PHP Frameworks Laravel
JavaScript Libraries and Tools React-Saga, Redux, Vuex, Webpack
Databases & Management Systems / ORM Microsoft SQL Server, MongoDB, MySQL, PostgreSQL
UI Frameworks, Libraries, and Browsers Bootstrap, CSS 3.0, jQuery, Material UI, SCSS
Virtualization, Containers and Orchestration Docker
Version Control Git
SDK / API and Integrations GraphQL
Methodologies, Paradigms and Patterns OOP, SOLID principles
Web/App Servers, Middleware PWA

Experience

Senior Full Stack Developer - MoovForge/Limelight Networks 

July 2021 – Dec 2022

Developing new performance target SSR react/vue.js applications and enhancing already existing web applications to reach sub-seconds experience.

- Close working with performance analyzing tools:

Lighthouse / CoreWebVitals /

WebPageTest / SpeedCurve / Chrome

Performance to achieve the best possible performance. (FCP/LCP/CLS)

- Integrate PWA techniques.

- Implementing Google AMP support

- Using the latest technics and methods to crack the speed. (Critical CSS/js, resource hints, caching).

Frontend Developer - SST Ukraine

July 2018 - July 2021

Creation and development of new projects.

Implementation of new functionality API integration.

How to hire with Upstaff

1

Talk to Our Talent Expert

Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.

2

Meet Carefully Matched Talents

Within 1-3 days, we’ll share profiles and connect you with the right talents for your project. Schedule a call to meet engineers in person.

3

Validate Your Choice

Bring new talent on board with a trial period to confirm you hire the right one. There are no termination fees or hidden costs.

Why Upstaff

Upstaff is a technology partner with expertise in AI, Web3, Software, and Data. We help businesses gain competitive edge by optimizing existing systems and utilizing modern technology to fuel business growth.

Real-time project team launch

<24h

Interview First Engineers

Upstaff's network enables clients to access specialists within hours & days, streamlining the hiring process to 24-48 hours, start ASAP.

x10

Faster Talent Acquisition

Upstaff's network & platform enables clients to scale up and down blazing fast. Every hire typically is 10x faster comparing to regular recruitement workflow.

Vetted and Trusted Engineers

100%

Security And Vetting-First

AI tools and expert human reviewers in the vetting process is combined with track record & historically collected feedbacks from clients and teammates.

~50h

Save Time For Deep Vetting

In average, we save over 50 hours of client team to interview candidates for each job position. We are fueled by a passion for tech expertise, drawn from our deep understanding of the industry.

Flexible Engagement Models

Arrow

Custom Engagement Models

Flexible staffing solutions, accommodating both short-term projects and longer-term engagements, full-time & part-time

Sharing

Unique Talent Ecosystem

Candidate Staffing Platform stores data about past and present candidates, enables fast work and scalability, providing clients with valuable insights into their talent pipeline.

Transparent

$0

No Hidden Costs

Price quoted is the total price to you. No hidden or unexpected cost for for candidate placement.

x1

One Consolidated Invoice

No matter how many engineers you employ, there is only one monthly consolidated invoice.

Ready to hire Andrew B
or someone with similar Skills?
Looking for Someone Else? Join Upstaff access to All profiles and Individual Match
Start Hiring
Request Andrew B Rates & Availability
Attachment File attachment Arrow

Upload File. Drag and Drop or Browse

At Upstaff we respect confidentiality, privacy and value your information.

Confidential (C) UPSTAFF LTD, England and Wales, #12727246 17 Montgomery Drive, Tavistock, United Kingdom PL19 8KX

Terms, conditions and legal information.

Thank you! 🎉

Your message has been successfully sent. We’ll review it and get back to you as soon as possible.

Create an account to save your details and track your applications.

Sign up
Download Candidate Profile (PDF)

Please leave your details and we'll email you the resume right away.

At Upstaff we respect your privacy.

Confidential (C) UPSTAFF LTD, England and Wales, #12727246 17 Montgomery Drive, Tavistock, United Kingdom PL19 8KX

Terms, conditions and legal information.