Public Engineering Changelog
A transparent, chronological record of every architectural evolution, performance optimization, and algorithm implementation—structured by Problem, Implementation, and Quantified Result.
AI Engineering Lab & Repository Health Telemetry
Launched live interactive AI Lab (RoleRadar ATS scorer, FitTrack CV pose kinematics, MarketMatch RFM clustering) and repository code health telemetry.
Portfolios often rely on static project cards or video gifs, which fail to prove that machine learning models and computer vision pipelines actually run performantly in edge environments.
Implemented client-side trigonometric joint kinematics with HTML5 canvas pose overlays, deterministic ATS NLP keyword scoring with Google XYZ formula suggestions, and unsupervised RFM clustering with 2D PCA projections.
Real-time interactive demos executing with sub-50ms latency, zero server persistence, and comprehensive repository code quality scoring across 6 key ecosystem projects.
- Interactive FitTrack pose estimation with live joint-angle trigonometry and rep counting state machine
- RoleRadar ATS resume analysis engine with missing keyword identification and bullet rewrite engine
- MarketMatch RFM customer segmentation with K-Means/GMM clustering and PCA scatter visualization
- GitHub health dashboard auditing code quality, CI pipelines, and open-source licenses
Recruiter Fast-Track & ATS-Optimized Resume
Engineered dedicated high-density recruiter portal, printable ATS resume, and deep technical case studies.
Recruiters spend an average of 6-8 seconds reviewing candidate profiles; 3D WebGL animations and heavy canvases slow down information retrieval and lead to mobile bounce rates.
Engineered a dedicated 0 WebGL /recruiter fast-track route, semantic HTML5 /resume with dedicated @media print stylesheets, and comprehensive architectural case studies (/work/*) with problem-solution-impact narratives.
Near-instant page loads (<300ms), 1-click printable PDF resume, and zero 404 links across all external and internal references.
- Recruiter Fast-Track portal with executive summary, skills matrix, and verified project links
- ATS-compliant HTML resume with zero-margin print stylesheet and PDF export button
- Deep architectural case studies for RoleRadar, Fitness Platform, and MarketMatch AI
- Converted fitness-platform-architecture repository to public to eliminate 404 friction
3-Way Performance Engine & Continuous Quality Verification
Introduced dynamic 3-way rendering mode toggle (Full 60FPS WebGL, Reduced Motion, Low-Bandwidth 0 WebGL) and automated 65+ test CI suite.
Heavy Three.js and Canvas 3D backgrounds cause frame drops, high GPU temperature, and battery drain on mobile devices and low-tier hardware.
Designed a unified performance state engine storing preferences in localStorage and HTML data attributes. Connected canvas mounting to low-bandwidth state, gracefully replacing GPU workloads with crisp CSS radial gradients. Integrated GitHub Actions CI workflow with 65+ automated assertions.
Zero layout shift when switching modes, 100% test pass rate in CI, and reduced power consumption for low-bandwidth users.
- 3-Way mode switcher: Full 60FPS WebGL, Reduced Motion, and Low-Bandwidth (0 WebGL)
- Zero layout shift architecture preventing UI jumping during canvas mount/unmount
- Performance Telemetry center (/performance) tracking WebGL FPS, memory, and Core Web Vitals
- 65+ automated test assertions covering routes, responsive layouts, and API security
Interactive Command Palette & Keyboard Navigation
Added keyboard-driven Command Palette (Cmd+K / Ctrl+K), global shortcut listeners, and tactile terminal cues.
Engineers and technical hiring managers prefer keyboard navigation over hunting through traditional nested dropdown menus.
Implemented accessible modal overlay responding to Cmd+K, with fuzzy search indexing across projects, skills, case studies, and social profiles.
Sub-50ms instant jump to any section or case study with full keyboard accessibility.
- Global Cmd+K / Ctrl+K shortcut with focus trap and arrow key navigation
- Instant search filtering across all portfolio projects, demos, and contact methods
- Auditory feedback cues and smooth transition animations
Initial Flagship Portfolio Launch
Initial release of Durgesh Dutt Sinha portfolio built on Next.js 14 App Router and Tailwind CSS.
Need for a unified digital headquarters demonstrating expertise in both Applied AI/ML engineering and production full-stack systems.
Engineered modular component architecture featuring interactive project showcases, skills grid, experience timeline, and contact interface.
Modern, highly polished engineering portfolio deployed on Edge infrastructure.
- Next.js 14 App Router architecture with static generation
- Curated dark mode theme with glassmorphism and subtle micro-animations
- Responsive mobile-first layout optimized for all device viewports