Lead UI Frontend Developer

SEBASTIN ANTHONYSAMY

Dublin, CA, *****

PROFESSIONAL SUMMARY:

15+ years of experience in the software industry, specializing in Search Engine Marketing (SEM), SEO, and Paid Content Marketing.

Proficient in Full Stack and Front-End development with a proven record of delivering high-quality technical solutions.

Strong leadership abilities with experience in training, managing, and motivating teams to achieve business objectives and drive results.

Expertise in front-end technologies including HTML5, CSS3, JavaScript, JSP, AngularJS, jQuery, XML, JSON, Bootstrap, Node.js, Redux, and React JS.

Experienced in developing Single Page Applications (SPA) with proficiency in AngularJS-Directives, Controllers, Filters, Routing, and Components.

Extensive hands-on experience with web page development using JavaScript, jQuery, and Bootstrap, ensuring cross-browser compatibility.

Experience with test suites creation using Jasmine and Karma for unit and integration testing.

Skilled in designing and developing web applications using MVC architecture.

Expertise in Search Engine Optimization (SEO) techniques for designing web applications and web content to improve visibility.

Practical experience with RESTful web services and source code management tools such as SVN and GIT.

Experience with ADF Alfresco Framework, as well as application servers like WebLogic, WebSphere, and Apache Tomcat.

Hands-on experience in developing web services using Python programming language.

Worked with modern front-end technologies such as React JS for developing SPAs and dynamic features for large-scale applications.

Experience in integrating back-end technologies like Java and .NET with front-end JavaScript frameworks via AJAX and JSON.

Familiar with Agile and Waterfall development methodologies and actively participated in Scrum Grooming and Planning sessions.

Expertise in creating responsive, visually rich applications with Bootstrap, font-awesome icons, CSS3, Lazy loading, JavaScript, and jQuery scripting technologies.

Experienced in cross-browser testing for compatibility on browsers such as Mozilla Firefox, Google Chrome, Safari, and Internet Explorer.

Proficient in applying HTML5 and CSS3 features to create multimedia elements, animations, effects, and graphics.

Strong problem-solving skills, outstanding interpersonal skills, and effective written and verbal communication.

Highly driven and goal-oriented, with the ability to work both independently and within a collaborative team environment.

Focused on meeting deadlines while delivering high-quality, scalable solutions.

Skills:

Category

Skills

Front-End Development

JavaScript, HTML, CSS, LESS, SASS, jQuery, ReactJS, TypeScript, Bootstrap, AngularJS, Backbone.js, High Charts, AJAX, JSON, Jade, Less, Sass, jQuery UI

Backend Development

Node.js, Express, Java, Kotlin

Testing & Automation

Mocha, Jest, Cypress, Selenium, Junit, Nightwatch, Jasmine, Karma, Protractor

Databases

MongoDB, Snowflake, MySQL, Redis, Oracle, DB2, MS Access

Cloud Technologies

AWS (EC2, Lambda, S3, IAM, Route53, DynamoDB, CloudWatch Metrics)

DevOps Tools

Docker, Kubernetes, OpenShift, GitLab, Jenkins, Argo CD, JIRA, Argo

Monitoring & Optimization

Grafana, Kibana, PagerDuty, Catchpoint, Sentry, OpenSearch, Fastly (CDN), SiteSpect, Google Tag Manager

UI Frameworks

AngularJS, Angular, Bootstrap, Backbone.js, Node.js

Languages

C, C++, Java, J2EE, Python, SQL

Prototyping & Design Tools

iRise, Axure, Photoshop, Illustrator, Dreamweaver, Flash, Visio

IDE & Tools

Aptana Studio, Sublime Text, Eclipse, WebStorm, IntelliJ, Microsoft Visual Studio, Postman, Rest Client

Debugging Tools

Firebug, Bugzilla

Web Servers

Apache Tomcat, WebLogic, WebSphere

Version Control Tools

SVN, BitBucket, GitHub

Build/Deployment Tools

Maven, Apache Ant, Apache Ivy, Jenkins

Operating Systems

Windows XP/7/10, Linux, Mac OS

EDUCATION: Bachelor of Engineering Anna University, India.

CERTIFICATIONS: Sun Certified Java Developer

PROFESSIONAL EXPERIENCE:

Client: Ask Media Group, Oakland, CA Nov 2023 – Current

Role: Team Lead, Marketing Tech

Responsibilities:

Directed and managed a marketing technology team, overseeing the development and delivery of tools aimed at improving SEM (Search Engine Marketing) and PCM (Paid Content Marketing) performance on the Buy Side.

Designed and implemented a suite of tools and workflows for creating and managing campaigns across major platforms, including Google Ads, Microsoft Pub Center, and Facebook Ads Manager.

Utilized hands-on experience with Facebook Ads Manager, Google Ads, and Bing Ads consoles to directly manage, optimize, and analyze digital marketing campaigns, driving high ROI and engagement.

Developed and maintained strong expertise in the use of developer apps and Marketing APIs from Google, Facebook, and Bing, ensuring seamless integration and efficient execution of campaigns across multiple advertising channels.

Led the end-to-end project planning, execution, and delivery of high-impact initiatives, ensuring all projects aligned with the overall business goals and objectives while being completed within budget and on schedule.

Collaborated cross-functionally with the marketing, product, and development teams to design tailored solutions, ensuring optimized workflows and enhancing the overall campaign management process.

Managed the integration of analytics and performance tracking across all marketing tools to provide actionable insights, improving campaign optimization and decision-making.

Championed A/B testing, multi-variant testing, and performance monitoring of SEM and PCM strategies to improve ad targeting, bidding strategies, and overall campaign effectiveness.

Spearheaded training and development initiatives for the team, ensuring they were up to date with the latest trends, tools, and best practices in SEM, PCM, and digital marketing.

Oversaw the optimization of budget allocation, ensuring the proper distribution of funds across multiple channels to maximize return on ad spend (ROAS), leading to significant cost savings and increased revenue.

Client: Ask Media Group, Oakland, CA Dec 2018 – Nov 2023

Role: Senior Software Engineer, Front End

Responsibilities:

Designed and built an internal tool using React for the Product team, reducing developer effort by 40% and improving overall efficiency.

Integrated and managed a third-party A/B testing platform, executing experiments that drove key business insights and enhanced decision-making.

Integrated and managed a Content Delivery Network (CDN) to provision TLS certificates, deliver static assets, enable Web Application Firewall (WAF), and optimize edge caching, resulting in improved performance and enhanced security.

Led PageSpeed optimization initiatives, improving page speed scores from 30 to 90, significantly enhancing the loading speed of web pages.

Played a critical role in a front-end platform migration, replacing a custom framework with ReactJS to modernize the tech stack, reducing operational costs by 50% and increasing time-to-market (TTM) by 80%.

Led the A/B testing team, delivering hundreds of A/B testing features to improve daily revenue and drive continuous product optimization.

Provided mentorship and technical leadership to the front-end teams, enabling scalable, high-performance solutions, while contributing to hiring and onboarding new talent.

Involved in designing web pages using HTML5, CSS3, JavaScript, Bootstrap, SASS, LESS, React.js, Redux, and MongoDB to deliver modern, user-friendly interfaces.

Implemented stable React components and standalone functions that can be easily integrated into future pages, ensuring maintainability and scalability.

Created a reusable UX-Library of components including Button, Checkbox, Input, Icons, Toggle Button, Dropdown, and Phone, enhancing consistency and speeding up development time.

Developed a solution for generating the verification hash code using Node.js, and implemented user validations and permissions to ensure security and proper access control.

Worked with the JEST unit test framework to write comprehensive unit tests for JavaScript code, improving code quality and reducing the likelihood of bugs.

Created a platform using JavaScript, TypeScript, ReactJS, Node.js, and Express to replace third-party applications for managing running meetings, assigning tasks, personalizing notes, and sharing documents, reducing costs by 50%.

Followed organization’s code guidelines and actively conducted code reviews, ensuring code quality, consistency, and best practices.

Applied Object-Oriented Programming (OOP) concepts to develop reusable UI components that could be integrated across the web application for consistency and ease of maintenance.

Actively monitored offshore work, providing technical support to the offshore team and helping them resolve issues related to their JIRA tickets.

Reviewed and refactored existing code to break down large codebases into smaller, more manageable fragments that could be reused and easily maintained.

Utilized Azure DevOps for grooming and story discussions, ensuring effective collaboration and planning within the development team.

Managed technical debt by continuously improving code quality, optimizing performance, and ensuring long-term maintainability.

Enhanced product functionality by integrating advanced UX/UI principles and focusing on delivering seamless, intuitive user experiences.

Worked closely with cross-functional teams, including product managers and designers, to ensure the final product met business requirements and user needs.

Improved team workflows by establishing best practices and automation processes, allowing for faster feature delivery and smoother development cycles.

Client: Thinfilm Electronics, San Jose, CA March 2018 – Dec 2018

Role: Lead Software Engineer

Responsibilities:

Led a 5-member team responsible for adding new features to a cloud-based analytics platform, overseeing the design, development, and deployment of key features.

Managed the design, code reviews, API development, automation testing, and coordinated with offshore teams to ensure the successful delivery of high-quality features.

Published Android and iOS mobile apps to the App Store while adhering to platform-specific guidelines and maintaining high-quality standards.

Collaborated with product owners to gather requirements and ensure the design, development, and deployment processes met business objectives.

Transformed design mockups into cross-browser compatible HTML5/CSS3 layouts, and implemented dynamic page elements and form error validations using JavaScript. Developed the UI using jQuery for improved functionality.

Developed various screens for the front end using ReactJS, utilizing predefined components from NPM (Node Package Manager) to speed up development.

Created reusable components using ReactJS to facilitate DOM manipulation, ensuring the application was modular and easy to maintain.

Implemented authentication and authorization configurations using Passport and JSON Web Tokens in Node.js to secure user access.

Developed services, controllers, directives, and factory functions to properly consume APIs, send data in JSON format, and capture it within the UI for dynamic content rendering.

Worked with ReactJS to bind data from a backend database, using services in a controller to populate views with the appropriate content using scope.

Developed a front-end application using ReactJS and FLUX architecture to improve internal team productivity and workflow efficiency.

Created reusable UI components using ReactJS and TypeScript, ensuring the application was highly maintainable and scalable.

Leveraged ReactJS and Flux architecture to manage application state and improve UI performance.

Ensured the application was responsive across all devices by using Bootstrap and CSS Media Queries, optimizing for various screen sizes.

Implemented the Model-View-Controller (MVC) architecture to improve application organization and maintainability.

Worked with Angular 7 to create custom directives, controllers, services, and filters, integrating them into a cohesive and efficient front-end application.

Used Agile SCRUM methodology, participating in daily stand-up meetings, sprint showcases, and sprint retrospectives to ensure timely and effective delivery of features.

Extensively utilized Angular-cli to generate components, routes, services, and pipes, as well as to run tests, ensuring development speed and code quality.

Collaborated with backend developers to build RESTful APIs and integrate them with the front end, ensuring smooth communication between the UI and external web services.

Consumed and integrated UI with REST/JSON-based web services, optimizing data flow and ensuring consistency between frontend and backend.

Created responsive web applications using Backbone.js, ensuring compatibility with different screen sizes and devices.

Leveraged ReactJS templating for faster compilation and developing reusable components, improving overall development efficiency.

Client: Cognizant Technology Solutions, Ind Nov 2007 – March 2018

Role: Senior Associate

Responsibilities:

Managed multiple front-end teams, ensuring the delivery of high-quality, standards-compliant code that met project objectives and deadlines.

Built websites for Search Engine Marketing (SEM) using Node.js and Express, optimizing for performance and scalability to support high traffic and efficient processing.

Conducted offshore team coordination, facilitated code reviews, and led delivery planning to meet deadlines and ensure the successful completion of projects.

Mentored team members to improve technical skills, ensuring consistent adherence to coding standards and promoting best practices across the team.

Involved in understanding and analyzing requirements and contributed to the system design process, ensuring a clear vision for development and smooth execution.

Followed Waterfall methodology to implement features, ensuring a structured and systematic approach to project management.

Responsible for transforming design mock-ups into W3C standards-compliant HTML pages using technologies such as XHTML, CSS, JavaScript, jQuery, JSP/JSON, XML, and XSLT.

Developed presentation-tier JSP pages in HTML, implemented jQuery Data Grid controls, Validation controls, and other widget controls to enhance interactivity and user experience.

Designed both desktop and mobile applications, ensuring responsive layouts and user-friendly interfaces tailored to client needs.

Implemented user interface guidelines and maintained design consistency throughout the development and maintenance of the website using DHTML (HTML, CSS, JavaScript).

Developed static and dynamic modules, ensuring they were displayed across various web pages based on specific project specifications.

Created social network services for user interaction using Ajax and DHTML, improving real-time communication and user engagement.

Designed and developed XML schemas to transport and store data, using XML to simplify data flow, facilitate platform changes, and ensure data availability across distributed platforms.

Worked extensively with Spring MVC to send requests from the UI to Controllers, streamlining data handling and backend integration.

Used Cascading Style Sheets (CSS) to maintain design consistency across all web forms, ensuring a unified visual identity.

Extensively used XSLT to transform XML documents into HTML, making dynamic content accessible and enhancing data presentation.

Developed front-end JSP pages using the Struts framework, hosted in a J2EE environment on Apache Tomcat, ensuring scalable and maintainable web applications.

Utilized Subversion (SVN) for version control and repository management, ensuring proper tracking of changes and collaboration among team members.

Developed and tested the application using Eclipse IDE, ensuring efficient development cycles and seamless debugging.

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