Aniruddha Deb
Senior Angular Developer & Frontend Lead
Legacy Angular upgrades (v7 → v21) · Signals · NgRx · RxJS
I help product teams build and modernise enterprise web applications: upgrading legacy Angular codebases to the latest version without breaking them, and delivering complex, data-heavy platforms with clean state management and reusable components. 15+ years building web UIs, 5+ years hands-on in Angular, also working with React. I can start immediately.
How I Can Help Your Team
Available for remote contracts, contract-to-hire and full-time roles. I can start immediately.
Legacy Angular Upgrades
Move an old Angular codebase (v7 and up) to current Angular step by step: standalone components, Signals, new control flow, updated dependencies, and no regressions along the way.
Recent: Angular 7 → v21 modernisation of an enterprise application
Senior Angular Developer / Lead on Contract
Join your team as a senior hands-on developer or frontend lead: feature delivery, NgRx state, reusable components, code reviews and mentoring from day one.
Recent: led Angular delivery on an enterprise GIS platform (30–40 components)
Performance & Code Health Review
A focused review of a slow or hard-to-maintain Angular app: bundle size, lazy loading, change detection, state management and test coverage, with a prioritised fix list.
Recent: reusable component system that cut delivery time by an estimated 40%
About Me
Component-driven architecture, reactive programming and reusable systems that shorten delivery timelines
I'm strong in component-driven architecture, RxJS-based reactive programming and NgRx state management, with hands-on experience in modern Angular features including Signals, standalone components and performance-focused lazy loading strategies.
I'm recognised for reducing delivery timelines through reusable component systems, clean dependency injection patterns and solid unit testing practices. I use Angular's signal-based architecture in real work (most recently a v21 modernisation) and I'm comfortable joining fast-paced product teams mid-flight.
Key Expertise
Legacy Angular modernisation: upgrading older codebases to v21, NgModules to standalone, adopting Signals safely
Modern Angular: component design, Signals, standalone components, new control flow, deferrable views and lazy loading
State management — NgRx (actions, reducers, selectors, effects), RxJS reactive patterns, event bus patterns and IndexedDB for large datasets
Architecture — Nx monorepos, Interface + InjectionToken-based DI, component libraries and design systems for multi-team workflows
AI-assisted development — GitHub Copilot for inline coding, Claude Code for plan-first multi-file refactors and test generation, with every change reviewed
Testing — Jest and Jasmine with centralised mocks and test data factories
Domain experience — GIS & location intelligence, fraud detection, construction tech, fintech, EdTech and Contentful headless CMS
Leadership — mentored teams of 5+ developers, code reviews, estimations and end-to-end delivery ownership
Looking For
My Approach
"No component should depend on a concrete implementation. Clear interfaces, injectable abstractions and reusable building blocks are what let a codebase grow for years without slowing the team down."
Professional Experience
From web design team lead to senior Angular delivery on enterprise platforms
Senior Frontend Consultant (Angular)
ContractMSH Business Consulting Pvt. Ltd.
Key Responsibilities & Achievements
- Led the migration and modernization of a legacy Angular 7 codebase (2017–18) to latest Angular (v21), ensuring compatibility, stability, and improved performance.
- Refactored legacy modules into a scalable, modular, and maintainable architecture, aligning with current Angular best practices.
- Drove adoption of modern Angular features (standalone components, improved state handling, performance optimizations, etc.).
- Designed and implemented reusable, high-performance UI components across the product ecosystem.
- Owned end-to-end frontend delivery, including development, optimization, code quality, and production support.
- Improved application performance and load time through optimization techniques such as lazy loading and efficient rendering.
- Ensured seamless API integration and consistent data flow between frontend and backend.
- Contributed to Agile/Scrum processes, including sprint planning, estimations, and delivery tracking.
Technologies & Tools
Consulting Principal Engineer
ContractSuccessive Digital
Key Responsibilities & Achievements
- Led Angular development for Dentsu's GEO platform — an enterprise self-serve Location Intelligence and GIS solution used by global marketing teams for audience and location analytics.
- Owned the map rendering layer and data catalogue UI, delivering 30–40 components across a 5-engineer team in a standalone, lazy-loaded Angular architecture.
- Engineered Interface + InjectionToken-based DI patterns to enable abstract, swappable service implementations — improving testability and long-term maintainability.
- Built and maintained the NgRx state management layer (actions, reducers, selectors, effects) for complex, multi-step user flows across the platform.
- Integrated IndexedDB persistence for large uploaded geospatial CSV datasets, preventing performance degradation with memory-heavy spatial data.
- Developed reusable, modular UI component systems across client projects, cutting estimated development time by 40%.
- Optimised application performance through lazy loading, tree shaking, and Angular-specific build optimisations.
Technologies & Tools
Principal Engineer
Full-timeSuccessive Digital
Key Responsibilities & Achievements
- Designed and implemented scalable Angular architectures for large-scale enterprise applications with strong emphasis on performance and developer experience.
- Built robust frontend systems using component-based architecture, RxJS reactive patterns, and user-centred design principles.
- Integrated Contentful headless CMS into Angular applications for dynamic, marketer-controlled content management without frontend deployments.
- Championed code quality standards through code reviews, unit testing with Jest/Jasmine, and documentation of architectural decisions.
Technologies & Tools
Lead UI Developer
Full-timeExcelsoft Technologies
Key Responsibilities & Achievements
- Led UI development across educational platforms and enterprise applications serving 100,000+ users, maintaining 99.5% uptime across production environments.
- Owned the UI layer (HTML5, SCSS, Bootstrap, responsive and adaptive layouts) for an Angular + .NET enterprise application.
- Managed and mentored a team of 5+ developers, conducting code reviews, setting standards, and providing technical guidance on frontend architecture.
- Designed responsive, adaptive interfaces optimised for desktop and mobile, reducing reported UI issues by iterating closely with QA and product teams.
- Collaborated with stakeholders through iterative development cycles to align delivery with business goals and user needs.
Technologies & Tools
Senior Associate
Full-timeCorbus
Key Responsibilities & Achievements
- Led the UI development of the project.
- Defined the layout for the responsive website.
- Built the website to the client's accessibility standards.
- Defined the page architecture as per W3C compliance.
- Communicated with the creative agency and onsite coordinator.
Technologies & Tools
Team Leader - Web Design
Full-timeeWay Corp
Key Responsibilities & Achievements
- Led the Web Design team.
- Designed websites.
- Designed and developed email newsletters.
- Designed and developed Flash web applications.
- Developed interactive CD presentations.
- Interacted with clients for new projects.
Technologies & Tools
Career Timeline
A visual representation of my professional journey
Senior Frontend Consultant (Angular)
ContractMSH Business Consulting Pvt. Ltd.
April 2026 - September 2026
Led the migration and modernisation of a legacy Angular 7 codebase (2017–18) to Angular v21, ensuring compatibility, stability and improved performance while owning end-to-end frontend delivery.
Consulting Principal Engineer
ContractSuccessive Digital
October 2023 - June 2025
Led Angular development for Dentsu's GEO platform, an enterprise self-serve Location Intelligence and GIS solution used by global marketing teams for audience and location analytics.
Principal Engineer
Full-timeSuccessive Digital
May 2021 - October 2023
Designed and implemented scalable Angular architectures for large-scale enterprise applications with a strong emphasis on performance and developer experience.
Lead UI Developer
Full-timeExcelsoft Technologies
August 2014 - April 2021
Led UI development across educational platforms and enterprise applications serving 100,000+ users, while managing and mentoring a team of 5+ developers.
Senior Associate
Full-timeCorbus
July 2011 - July 2014
Led UI development of client projects, defining responsive layouts and page architecture to meet accessibility and W3C standards.
Team Leader - Web Design
Full-timeeWay Corp
February 2007 - June 2011
Led the web design team and worked directly with clients on new projects, covering websites, email newsletters and interactive multimedia.
Beginning of Career
2007 - Started as Team Leader, Web Design at eWay Corp
Key Projects & Consulting Engagements
Selected work across GIS, fintech, fraud detection, construction tech and legacy modernisation
Angular Legacy Modernization — Angular 7 to v21
MSH Business Consulting Pvt. Ltd.
- Led end-to-end migration of a 2017–18 legacy Angular 7 codebase to Angular v21, ensuring zero regression in functionality while modernizing architecture.
- Refactored legacy NgModule-based modules into standalone, lazy-loaded architecture using current Angular best practices.
- Drove adoption of Signals, new control flow syntax, and performance optimizations across the upgraded platform.
- Identified and resolved technical debt, deprecated dependencies, and architectural bottlenecks during upgrade cycles.
GEO — Location Intelligence & GIS Platform
Dentsu / Successive Digital
- Owned the map rendering layer, data catalogue UI, and all geospatial visualisation components from the ground up for an enterprise self-serve platform used by global marketing teams.
- Engineered event bus architecture for cross-module communication and Interface + InjectionToken DI for plug-and-play service implementations.
- Implemented NgRx store for complex state flows and IndexedDB integration to handle large geospatial CSV uploads without performance degradation.
- Delivered 30–40 standalone, lazy-loaded Angular components with comprehensive Jest test coverage within a 5-person engineering team.
- Reduced development time by 40% through a reusable component library adopted across multiple client projects.
Argus West SPEAR — Provider Fraud & Abuse Solution
Argus West
- Handled the entire Angular frontend as sole developer for an industry-first SIU (Special Investigations Unit) perspective layer integrated into bill review platforms.
- Implemented complex Angular Guards, authentication flows, and RxJS-based state handling for the fraud detection UI.
PlanHub — Construction Bidding & Project Management Platform
PlanHub
- Architected an Angular monorepo using Nx Workspace with multiple Angular applications and shared component libraries.
- Extensive use of FormArray, local storage strategies, and SCSS theming across a multi-app monorepo structure.
VertoFX — Currency Exchange Platform
VertoFX
- Integrated the Contentful SDK into Angular for headless CMS-driven content management, enabling marketers to update content without frontend deployments.
- Implemented social sharing across Facebook, Twitter/X, Instagram, LinkedIn, and WhatsApp from blog and content pages, with rich branded link previews.
- Engineered Angular Universal (SSR) with route-level dynamic meta tag injection via Angular's Meta and Title services, so social crawlers receive fully server-rendered Open Graph and Twitter Card tags.
- Built reusable Share Button components with deep-linked URLs and CMS-driven pre-populated share copy.
Angular Blogging App — Signal-Driven, Standalone Architecture
Personal Project
- Built a fully functional blogging application to explore modern Angular architecture without NgRx or NgModules.
- Signal-native state management throughout — services expose read-only signals with no external state library.
- Interface + InjectionToken DI on every service, so no component depends on a concrete implementation.
- Test infrastructure designed for 70%+ coverage: centralised mocks, test data factories, and InjectionToken-based dependency swapping.
Skills & Expertise
Technology landscape, working style, languages and education
Angular Framework
State Management
Architecture Patterns
Testing
UI & Styling
CMS & APIs
Tooling
Languages & Frameworks
AI-Assisted Development
Core Competencies
Frontend Architecture
Team Leadership
Mentoring & Code Review
Stakeholder Communication
Agile / Scrum Delivery
Estimation & Planning
Problem Solving
Delivery Ownership
English
Full ProfessionalBengali
NativeHindi
NativeDiploma in Advanced Graphics & Multimedia Design
CEDTI (now CDAC)
2002
Certified E-commerce Professional
Aptech
2000–2001
Bachelor of Commerce (B.Com.)
University of Calcutta
1997–2000
Let's Work Together
Available immediately for remote contract, contract-to-hire and full-time roles as a Senior Angular Developer or Frontend Lead. Tell me about your project and I'll reply within 24 hours.
Ready to Start?
Send a short note about the project, stack and timeline. Happy to do a quick call the same week.