Digital Product Engineering
Idea to launched product: architecture, MVP build, iteration and scaling.
Senior WordPress, PHP & SaaS developer · Available for remote work
Websites that load fast and convert visitors.
15+ years building fast, secure and scalable websites, web applications and e-commerce platforms. Over 100 projects delivered for clients around the world.
Taking on new projects · replies within 24 hours
Delivery WorkspaceHow a typical project runs
Active
Web
Apps
AI
Data
WordPress & WooCommerce
From brief to a fast, secure launch
BuildCustom themeNo bloated page builders
SpeedOptimisedCore Web Vitals focus
SecurityHardenedSafe updates & backups
Project progressBrief → Launch
Clear scopeRequirements agreed in writing before any code.
Weekly updatesYou always know what is done and what is next.
15+Years of experience
100+Websites & apps delivered
$40K+Upwork earnings
1,828Hours worked on Upwork
FCMIChartered Management Institute
WordPress
PHP
Laravel
Python
Django / FastAPI
React
Next.js
Shopify
WooCommerce
MySQL
Git
Linux / VPS
AI & LLMs
REST APIs
WordPress
PHP
Laravel
Python
Django / FastAPI
React
Next.js
Shopify
WooCommerce
MySQL
Git
Linux / VPS
AI & LLMs
REST APIs
Engineering services
Full-cycle development, one accountable partner.
From a single bug fix to a complete product build, I handle strategy, design, development and support so you deal with one person, not a chain of handoffs.
Business Process Automation
Replace manual admin with connected workflows, APIs and approvals.
AI-Powered Applications
Add LLM features, extraction, classification and smart search to real products.
Agentic AI
Task-focused AI agents wired to your tools, data and business rules.
Data Analytics & Visualization
Dashboards and reports that turn raw data into decisions.
Web Design & Development
Fast, secure WordPress, PHP, Laravel, Django, React and Next.js sites and apps.
Mobile App Development
Cross-platform mobile apps connected to your backend and APIs.
Ecommerce Development
WooCommerce and Shopify stores, custom checkout flows and integrations.
How a project ships
From your brief to production, in one pipeline.
Every project follows the same disciplined flow: discover the real requirement, build it cleanly, test for speed and security, then launch and support it.
Clean, documented, maintainable code
Speed and security checked before launch
Zero-downtime deployment and handover
project.php
Build Passing
Security Hardened
Speed focus Optimised
Deployed to productionZero-downtime launch
AI workflow connectedCRM · email · data
Post-launch supportMaintenance on request
Selected work
Real products, built and shipped.
A selection of platforms, products and automation systems I have designed and delivered. Detailed case studies and references are available on request.
PHP · MySQL · Platform
PalmBeach4Rent
Property management platform for Palm Beach County: listings, owner/tenant workflows and admin tooling.
Full build & ongoing maintenance
PHPMySQLTailwind
SaaS · Product
Prachesta
UK-focused accounting SaaS: invoicing, expenses, projects and reporting in one connected workspace.
Founder, product & engineering
SaaSAPIsDashboards
View live
Python · FastAPI
Thikuji Astrology Engine
FastAPI web app with calculation engine, admin panel and VPS deployment.
Backend, admin panel, deployment
PythonFastAPILinux VPS
Python · Automation
Bengali PDF Report Generator
Template-driven report pipeline that turns structured data into polished Bengali PDF reports.
Template + generation pipeline
Jinja2WeasyPrintPython
PHP · Lead Generation
Asia2Europe Travel Services
Conversion-focused landing page for air tickets, insurance and visa leads.
Design & development
PHPTailwindLead forms
AI · Automation
Technosmith AI Automation
Five-phase AI automation service: discovery, design, build, validation and launch.
Service design & delivery
AI agentsWorkflowsIntegrations
View live
How I can help
The right tool for the job, not a one-trick stack.
Deep experience across the CMS, backend and frontend technologies that most business projects actually need.
WordPress & WooCommerce
Custom themesPluginsSpeed & securityMaintenance
PHP & Laravel
DashboardsAdmin panelsREST APIsIntegrations
Python & Django / FastAPI
Business systemsReportingAuth & rolesAutomation
React & Next.js
SaaS UIAdmin interfacesAPI frontendsPerformance
Shopify & Ecommerce
Store buildsTheme workPaymentsCustom flows
Ops & Delivery
Linux VPSGit workflowsDocumentationPost-launch support
Why clients hire me
Senior engineering, with a business mindset.
Technical depth is the baseline. What sets projects apart is clear communication, sensible decisions and reliable delivery.
Clear, proactive communication
Regular updates, honest estimates and no surprises. You always know where the project stands.
Maintainable, secure code
Clean structure, documentation and security-minded practices, so the next developer can pick it up.
Aligned with your goals
My FCMI management credential means I look past the ticket to the business outcome behind it.
Support after launch
Troubleshooting, updates and ongoing improvements available once the project is live.
Fixed-price project
Best for well-defined builds with clear scope and deliverables.
- Milestone-based payments
- Written scope and timeline
- Predictable budget
Most flexible
Hourly collaboration
Best for evolving requirements, fixes, audits and active development.
- Transparent time tracking
- Start quickly, adjust as you go
- Weekly progress updates
Monthly retainer
Best for ongoing maintenance, improvements and a dependable technical partner.
- Priority response
- Updates, security and speed care
- Continuous improvement
What you can expect
A clear process, first call to launch.
01
DiscoverGoals, constraints and success criteria agreed up front.
02
PlanScope, timeline and architecture in plain language.
03
BuildClean, documented code with regular progress updates.
04
TestReal-world checks for speed, security and edge cases.
05
Launch & supportDeployment, handover and ongoing maintenance.
Developer
Founder
Consultant
Founder
Consultant
About me
Engineer with a business mindset.
I am Santonu Kumar Dhar, a senior web developer and founder of Technosmith. I have led 100+ projects across corporate websites, real estate platforms, LMS solutions, accounting dashboards and e-commerce systems.
My FCMI (Fellow, Chartered Management Institute) credential helps me understand not just the technical requirements but the business need behind each project.
Direct communicationYou work with the person who writes the code.
Cross-border experienceClients and companies across the UK, USA and Bangladesh.
Product mindsetI build and run my own SaaS, so I think beyond the ticket.
Author & creatorPublished books and writing grounded in real experience.
Start in 60 seconds
Tell me what you need. I'll reply with a plan.
Pick what applies and I'll turn it into a ready-to-send brief. You get questions, an approach and a realistic estimate within 24 hours.
Reply within 24 hours, from the developer himself
Clear scope, timeline and milestones before work starts
You own the code and all project assets
Project brief builder
I need help withSelect options above to build your brief.
Questions
Before we work together.
Quick answers for clients and recruiters.
What types of projects do you take on?
New business websites, WooCommerce stores, redesigns, speed and security work, custom dashboards and admin panels, API integrations, Python/Django systems, React/Next.js frontends and AI automation. Small fixes and large builds are both welcome.
Do you work on fixed-price or hourly contracts?
Both. Well-defined projects work well at a fixed price with milestones; ongoing or evolving work suits hourly or monthly retainers.
Which time zones and hours do you cover?
I work remotely from Bangladesh and agree overlap hours with each client so communication stays smooth for UK, US and other time zones.
Will I own the code?
Yes. On payment, the code and project assets are yours, delivered in a clean repository with documentation for handover.
Do you offer support after launch?
Yes. I offer troubleshooting, updates and ongoing maintenance so the site or application stays fast, secure and up to date.
Can I see references or more case studies?
Yes. Ask and I will share detailed case studies, relevant live links and my Upwork work history.
Let's build it
Have a project in mind? Let's talk requirements.
Send a short brief and I will reply within 24 hours with questions, an approach and a realistic estimate.