AboutSkillsExperienceEngineeringWorkContact
Full-Stack Developer & Agency Founder — Toronto, ON

Building
intelligent
systems.

I architect AI-integrated backends, distributed systems, and client-facing websites that convert — engineering precision applied at every layer, from database design to the final pixel.

View my work
99.9%
System uptime across production
40%
Manual review time cut via AI
6+
Client projects live
100%
Compliance record maintained
01
About

Engineering
with intent.

Toronto-based engineer who obsesses over every layer of the stack. Three years building production systems, running an agency, and shipping zero excuses.

I'm a Toronto-based full-stack developer who specialises in AI-integrated systems, distributed architectures, and high-performance web products. Every project starts with the question: what does this need to do well, exactly?

Beyond engineering, I run a web development & SEO agency delivering bespoke sites for businesses across legal, healthcare, fintech, and local services — zero templates, always custom-built to convert.

Previously at Estée Lauder as a QC Analyst, where I maintained a 100% compliance record and 99.9% system uptime. That operational discipline — rigorous, evidence-based, no cutting corners — is the foundation of how I build everything.

I believe the best software is invisible. It just works, it performs, and it scales. Everything else is noise.

0+
Client projects shipped
0%
Production uptime
0%
Review time cut via AI
0%
Compliance record
02
Technical Skills

The full
stack.

Every tool listed is one I have shipped production code with. No filler, no aspirational entries.

I focus on the technologies that let me build end-to-end — from database schema to deployed frontend. Strong opinions, loosely held.

Languages
JavaTypeScriptJavaScriptC++SQLPythonHTML / CSS
Frameworks & Libraries
Spring BootReactNode.jsExpressREST APIsThree.jsTailwind CSS
Cloud & DevOps
AWS EC2AWS S3AWS LambdaDockerCI/CDPrometheusGrafanaLinux
Data & AI
PostgreSQLMySQLOpenAI APIVector DBsRedisLLM IntegrationRAG Pipelines
03
Experience

Where I've
made an impact.

From operational rigour at a global enterprise to founding and running an independent engineering agency.

2023 — Present
Independent Agency
Founder / Freelance
Web Agency Founder &
Full-Stack Developer

Running a web development and SEO agency delivering custom solutions across legal, fintech, healthcare, automotive, and local services. Building AI-integrated engineering systems, distributed monitoring platforms, and SaaS products. Consistently ships 25% faster than industry average with zero critical post-deploy incidents.

ReactSpring BootAWSOpenAI APILocal SEODockerPostgreSQLTypeScript
2020 — 2023
Estée Lauder
Full-time
QC Analyst

Maintained a 100% compliance record across all quality control operations. Achieved 99.9% system uptime through rigorous monitoring and proactive incident response. Collaborated cross-functionally with engineering, operations, and regulatory teams to enforce data integrity standards at scale across global workflows.

Data IntegrityQC SystemsRegulatory ComplianceCross-functionalProcess Engineering
04
Engineering Work

Flagship
systems built.

Production-grade systems designed for scale — every metric is real, every stack decision is justified.

01AI Systems
Enterprise AI
Document Pipeline

End-to-end document ingestion, classification, and extraction powered by vector embeddings and LLM reasoning. Processes thousands of documents with near-zero human intervention. Deployed on AWS with full CI/CD, blue-green deployments, and real-time monitoring.

40%
Manual review reduced
100%
Data accuracy
JavaSpring BootReactAWSOpenAI APIVector DBPostgreSQL
GitHub Case Study
02Systems Eng.
Distributed Systems
Performance Monitor

Real-time monitoring platform with custom Prometheus exporters, ML-driven anomaly detection, and fully containerised deployment. Sub-second alerting, interactive dashboards, full audit trail — cuts mean time-to-resolution dramatically.

50%
Diagnostic time reduced
99.9%
Monitoring uptime
C++PythonPrometheusDockerGrafanaLinux
GitHub Case Study
05
Client Work

Agency
case studies.

Seven projects across legal, fintech, healthcare, automotive, e-commerce, and local SEO. Custom-built every time.

KN Law
Legal Tech
KN Law Concept
High-end legal portal with ergonomic data structures for lawyers.
View Project →
Accounting
Fintech
Business Accounting
Real-time financial tracking and visualisation.
View Project →
Auto Shop
Automotive
Auto Shop System
Streamlined booking flow and inventory management.
View Project →
Optometry
Healthcare
Optometry Concept
Modern patient intake and appointment scheduling.
View Project →
Cadets
Government / Community
Army Cadets Portal
Accessibility-first hub for community engagement.
View Project →
K Bros
Local SEO
K Bros Landscaping
Conversion-first design + local SEO for Newmarket & Aurora.
View Case Study →
Blue Garden Soaps
E-Commerce / Design
Blue Garden Soaps
Two bespoke e-commerce layouts for a botanical skincare brand. Zero templates.
View Case Study →
Newest Case Study

Blue Garden Soaps.

Two complete e-commerce layouts for a botanical skincare brand same product, two distinct visual worlds. Both production-ready, zero templates, hand-coded in pure HTML & CSS, and Java Script

Blue Garden Soaps is an Ontario-based botanical skincare brand. The brief: design two independent e-commerce experiences with different colour systems, typographic pairings, and layout logic. No frameworks.

Layout 01E-Commerce
Garden Serenity

Clean, editorial layout built around earthy cream tones with rose accents. Full-bleed split hero, featured product showcase, botanical ingredient section, and gallery grid.

Split-panel heroProduct showcaseIngredient gridGallery + hover captionsReview cards
Open Live Site →
Layout 02E-Commerce
Botanical Luxury

Warmer, apothecary-inspired aesthetic. Parchment tones, a mosaic product grid with hover reveals, scrolling marquee, and a floating story card. Same brand, entirely different feel.

Mosaic product gridPhoto-heavy split heroScrolling marqueeFloat-over story cardResponsive mobile
Open Live Site →
Built with
HTML5CSS3Vanilla JSCSS GridCSS AnimationsSVGResponsive
View Full Case Study
06
Contact

Let's build something
great.

Open to freelance engagements, agency partnerships, and full-time roles. If you have a hard problem that needs solving — I want to hear about it.

Download resume
Emailkisanthkumar@gmail.com
Phone(647) 328-2732
LocationToronto, Ontario, CA