Upstaff Sign up
Constantine L.
🇺🇦Ukraine (UTC-08:00)
Created AtUpstaffer since December, 2022

Constantine L. — PHP Software Engineer

Expertise in Back-End Web.

Last verified on July, 2023

Core Skills

Bio Summary

- PHP Engineer with 5+ years of experience in designing and developing dynamic web application/software
- Capable of understanding client requirements and translating them into code to add new features or modifications to existing products
- Adept in coordinating with testers to perform acceptance testing as well as maintaining technical documents
- Possess strong knowledge of PHP web frameworks such as Laravel.
- In-depth information on SQL/NoSQL databases and their declarative query languages to ensure appropriate information retrieval.
- Have a solid understanding of various data types, data structures, and algorithms.
- Upper-Intermediate English

Technical Skills

Programming LanguagesJavaScript, PHP
PHP FrameworksCodeIgniter, Laravel, Lumen, Slim
UI Frameworks, Libraries, and BrowsersCSS, HTML, jQuery
JavaScript FrameworksjQuery, Vue.js
PHP Libraries and ToolsPHPUnit, Xdebug
Databases & Management Systems / ORMMariaDB, MongoDB, MySQL, PostgreSQL, SQL
Cloud Platforms, Services & ComputingAWS, CloudFlare
Amazon Web ServicesAWS EC2, AWS IAM, AWS RDS (Amazon Relational Database Service), AWS S3
Web/App Servers, MiddlewareApache HTTP Server, Nginx
Mail / Network Protocols / Data transferCDN, SSL
Deployment, CI/CD & AdministrationCI/CD
Methodologies, Paradigms and PatternsDDD, DRY, KISS, OOP, SOLID
Virtualization, Containers and OrchestrationDocker
SDK / API and IntegrationsFacebook API, Google API, LinkedIn API, PayPal API, RESTful API, Stripe
QA, Test Automation, SecurityPHPUnit
PlatformsSAAS
Logging and MonitoringSentry
Third Party Tools / IDEs / SDK / ServicesXdebug

Experience 

Backend developer, Wonderkind (Netherlands)

1 year 4 months (last project)

Description: Talent attraction technology focused on vacancy visits, employer brand awareness, and job applications. Automate your social media campaigns that will make passive job-seekers flock to you. Focus on running your people business and delivering an inflow of candidates to your clients.

Responsibilities:Improving internal API, integrating third-party APIs, code refactoring, implementing domain-driven design, writing unit, and integration tests.

Project Team Size: 20 backend developers, 10 frontend developers, Team Lead, QA, PM, Business Analyst, Product Owner, Scrum Master, Customer Success team 

Tools & Technologies: PHP, Laravel, Vue.js, Facebook, Google, Amazon, Elasticsearch, PostgreSQL.

 

Full stack developer, TKM9 (Australia)

Description:Administration panel to manage content (games, videos, photos).

Responsibilities: Designing and building admin panel, integration with Google API, writing unit and integration tests.

Project Team Size:4 backend developers, 2 frontend developers, Team Lead, QA, PM, Business Analyst, Product Owner, Scrum Master

Tools & Technologies: PHP, Laravel, Vue.js, Amazon SQS/S3, Stripe.

 

Backend developer, PLP (Africa)

Description: A management system for customers and agents

Responsibilities: Designing and building admin panel, designing API (Google API integration), writing unit tests (integration tests). Project

Team Size: 4 backend developers, 2 frontend developers, QA, PM, Business Analyst, Product Owner, Scrum Master, and Team Lead.

Tools & Technologies:PHP, Laravel, Vue.js, RabbitMQ, MySQL.

 

Full stack developer, Constant Energy (US)

Description:A system for bank workers to provide a clear and convenient way for clients to order credit services with a help of a web/tablet application.

Responsibilities:Building admin panel, designing API, writing unit tests (integration tests).

Project Team Size:3 backend developers, 2 frontend developers, QA + PM.

Tools & Technologies:PHP, Laravel, Vue.js, Amazon (S3, SQS), MySQL.

 

Backend developer, Rokes Exchange (Japan)

Description: System for administrators and clients to provide token management, including transactions and operating with stock graph data. The system provides accounts and wallet management with security.

Responsibilities:Building admin panel, designing internal API, integration with Binance third-party API, writing integration tests.

Project Team Size:2 backend developers, 1 frontend developer, QA + PM

Tools & Technologies: PHP, Laravel, Vue.js, Redis, PayPal.

 

Full stack developer, Rocket Effect (US)

Description: System for Administrators to manage purchases and products

Responsibilities:Creation of admin panel, designing and building internal API, integration with external APIs, communication with the team, writing unit tests

Project Team Size:About 10 specialists (back/front)

Tools & Technologies: PHP, Apiato framework (Laravel based), DDD, Vue.JS.

 

Backend developer, Instabox (Germany)

Description: Photo printing tool.

Responsibilities: the creation of an admin panel, designing and building internal API, integration with external APIs, communication with the team 

Project Team Size:Full stack developer, 2 Java devs, PM, QA.

Tools & Technologies: PHP, Laravel, Java EE, AngularJS, Bootstrap, MySQL.

 

Backend developer, Sparkpage (US)

Description:The platform for mailing process automatization. A drag & drop Customer Journey Mapping tool to plan the perfect experience.

Project Role: Backend developer

Responsibilities:database architecture, code reviews, writing unit and integration tests, communication with the team, designing internal API, integration with external APIs

Project Team Size: 5 team members

Tools & Technologies: PHP, Laravel, MySQL, HTML, CSS, JavaScript, Bootstrap.

 

Full stack developer, Albumii (Kuwait)

Description: Albumii software helps you to design your photo album in minutes. It’s available on all platforms. Add your layouts, text, and backgrounds, then order them to be printed and delivered to your home. We utilize our pioneering state-of-the-art technology in printing your HD photo book and binding it in a beautiful flat-spread format to position your photos freely no matter where you place them. We specialize in expressing true-to-life colors and sharp text for a true HD presentation experience.

Responsibilities:designing internal API, integration with external APIs, building admin panel, code reviews Project Team Size: 6 devs, PM, QA, Business Analyst. 

Tools & Technologies:PHP, CodeIgniter, Bonfire, MySQL, AWS, Bootstrap, CSS, HTML, JS, jQuery.

Education

Engineering Master’s degree, Zaporizhzhia National University

2004-2009

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 Constantine L.
or someone with similar Skills?
Looking for Someone Else? Join Upstaff access to All profiles and Individual Match
Start Hiring