Koushik Dey
Senior UI/UX Engineer building fast, secure, business-aligned web products for over 20 years — from wireframe to server config.
About
I'm a seasoned UI/UX engineer working across the full lifecycle of web applications — frontend, backend, CMS and server configuration. Over 20 years, I have created over a thousand websites, and my work sits at the intersection of design and infrastructure: I design the interface, then make sure the server behind it stays fast, secure and online.
Over the years that's meant leading UX strategy for large digital portfolios, hardening web security across multiple properties, and applying SEO and analytics to turn traffic into measurable growth. I'm looking for an environment with real architectural problems to solve and digital transformations worth leading.
I actually started out in computer networking, not design. A friend working in frontend pulled me into the field during a freelance stretch, and the interface side of the work took over from there. That networking background still shows up in how I think about a build; server configuration and security aren't an afterthought to me, they're part of the same system as the interface.
Experience
Senior UI/UX Engineer & Webmaster
Independent Contractor — AdvancePro Technologies Ltd.
- Maintain, configure and troubleshoot servers, cutting downtime by 98% within 3 months through proactive monitoring.
- Design, develop and revamp PHP and WordPress sites for the organization and its affiliated groups, writing custom scripts and plugins as needed.
- Own web security across multiple properties, reducing vulnerabilities and building user trust.
- Run SEO, CRM platforms and analytics to support marketing and business growth.
- Migrated hosting to a more reliable provider and cleaned up bloated databases and unnecessary plugins across sites.
- Connected site forms to CRM workflows and integrated Google Analytics & Tag Manager to track and grow lead volume.
Senior UI/UX Engineer
Prime Tech Solutions Ltd.
- Led design and UX strategy across a wide portfolio of digital products, aligning every decision with business goals.
- Produced wireframes, user flows and interactive prototypes with industry-standard UX tools.
- Partnered with development teams on PHP, ASP.NET and modern JS frameworks to keep designs technically feasible.
- Built responsive iOS and Android interfaces, and customized nopCommerce using LESS and Sass.
Web Designer
- Built responsive, interactive interfaces with HTML, CSS and JavaScript.
- Designed logos, layouts and brand assets across the Adobe Creative Suite.
- Delivered custom WordPress and Joomla sites tailored to each client's brand.
Selected Work
2017 — Present
Toronto, Canada (Remote)
aptx.ca
Full revamp of AdvancePro Technologies' site (formerly advanceprotech.com) — new hosting, WordPress cleanup, CRM-connected forms and analytics-driven lead tracking.
hireaway.com
Add a short line here once you tell me what you actually built or fixed on HireAway.
Eagle Inventory
Inventory management software in the same space as APTX — UI/UX design and implementation, with GA4/GTM tracking and SEO/AEO optimization.
leadstrong.ai
WordPress site for LeadStrong's outreach and growth services, from self-managed tools to full-agency partnerships — GA/Tag Manager tracked and SEO/AEO optimized.
lumiinous.com
Site build for Lumii, an AI companion device in early access — GA4/GTM tracking plus SEO and AEO optimization to support the waitlist launch.
tlvpatientcare.com
Site build for a patient advocacy and healthcare navigation practice for seniors — GA4/GTM tracking plus SEO and AEO optimization to support consultation bookings.
hhbackoffice.com
Site build for a compliance and virtual back-office consultancy for home health and hospice agencies — GA4/GTM tracking plus SEO and AEO optimization to drive consultation bookings.
2008 — 2017
Dhaka, Bangladesh
primetechbd.com
UX strategy, wireframes and interactive prototypes across a wide portfolio of digital products.
zaeemjamal.com
nopCommerce store for a London couture house specialising in red carpet and bridal gowns, built while working under PrimeTech.
greatadventuretours.com
Reshaped and converted into WordPress for a group travel operator serving schools, churches, alumni and corporate groups, while working under PrimeTech.
tour-planners.com
ASP.NET site for a Dhaka-based inbound tour operator, with tour packages, destination browsing, hotels and air services.
Innoglobe
Website for a Bangladesh travel company offering tailored itineraries, corporate incentives, photography tours and 24/7 local support, built in PHP.
ToAB
Website for the Tour Operators Association of Bangladesh, a trade body formed in 1992 with 751 active members, built on WordPress.
Skills
FRONT-END
HTML, CSS, JavaScript, jQuery, Bootstrap, Foundation, Angular, Sass, LESS
BACK-END & CMS
PHP, ASP.NET, WordPress, Joomla, nopCommerce, FutureEcom
UI/UX TOOLS
Figma, Adobe XD, Axure, Adobe Illustrator, Adobe Photoshop
SEO & ANALYTICS
SEMrush, Ryte, Ahrefs, Google Analytics, Tag Manager, Looker Studio, PageSpeed Insights, GTmetrix
CRM & INFRASTRUCTURE
HubSpot CRM, Zoho CRM, cPanel/WHM, server configuration & security
LANGUAGES
Bengali (native), English (fluent, C1), Hindi (conversational)
Where I'm Headed
After a decade-plus of shipping interfaces, I've started looking at UX from a different angle: what happens when the interface itself gets smarter. Most UI/UX work today still treats machine learning as someone else's problem. I don't think that lasts.
I've been digging into how sentiment analysis, computer vision, and ML-based personalization can move UX decisions from guesswork toward something more analytic, with less manual tuning needed to get an interface to actually fit the person using it. It's the direction I want my next chapter of work to take.
I'm actively looking to move part of that work into formal research — a graduate-level program where I can study ML-enhanced UX properly rather than picking it up in the margins of client work.
How I Work
Understand the system, not just the screen
Before any interface work starts, I look at what the server, CMS and data are actually doing. A design that ignores infrastructure usually breaks against it later.
Wireframe, then earn the visual layer
Flows and structure come first. Polish gets added once the interaction actually works, not before.
Ship, measure, adjust
Analytics and performance tools stay on after launch. A redesign that isn't measured is a guess with better typography.
Own security as part of UX
A slow or compromised site is a UX failure. Server hardening and monitoring are part of the deliverable, not a separate job.
What People Say
What I find most intriguing in Koushik's character is his diverse interests outside of software. Two of his long-time passions are history and literature. His broad variety of interests reflects favorably on his ability as a researcher, both in bringing a diverse set of theories to the research at hand and in carrying forward new hypotheses of interest toresearchers.
Mirza Rashedul Amin, Managing Director — Prime Tech Solutions Ltd.
Koushik has established himself as a trustworthy worker, who would be beneficial to any team. His key talents were a strong sense of human interaction and a desire to learn about new technology. He strengthened his relationship with his squad by being a team player.
Khairul An-Am, Project Manager — AdvancePro Technologies
Education & Recognition
Independent University, Bangladesh — Computer Science & Management Information Systems, GPA 3.54
Govt. Kabi Nazrul College — First Division
St. Gregory's High School — First Division, with distinction
Vice Chancellor's List Scholarship
Independent University, Bangladesh — Spring 2002
Dean's List Scholarship
Independent University, Bangladesh — Autumn 2000
Senior Project: VLAN-integrated LAN Proposal
Twelve-credit capstone project — graded A
Rural Development Field Programme
Bangladesh Academy for Rural Development (BARD) — graded A