Mark Williams Email and Phone Number
Experienced Senior Full Stack Engineer with over 12 years of expertise in developing user-centric web applications that deliver exceptional performance, scalability, and security. Proficient in JavaScript, TypeScript, Node, Java, C#, Python, Golang, React, Angular, Vue, .NET, .NET Core, Springboot, GraphQL, Azure and AWS. I excel in leading and mentoring development teams, fostering a collaborative and agile environment, and contributing to the organization's mission and vision.*MAIN TECH SKILLS*Languages: JavaScript, Typescript, C#, CSS, HTML, SQL, Java, Python, Ruby, PHP, Golang, YAMLFront-end: React, Angular, Vue, Ngrx, RxJS, Redux, Redux TK, React Query, Saga, Next.js, MUI, Bootstrap, Storybook, SASS/SCSS, Tailwind CSS, GraphQL, Apollo ClientBack-end: Node.js, Express.js, Nest.js, Django, SpringBoot, ORM, ASP.NET Core, .NET framework, RESTful API, Soap, WebRTC, Socket.ioDatabase: PostgreSQL, MySQL, MongoDB, DynamoDB, CosmosDB, OracleDBCloud: AWS, GCP, Microsoft Azure, FirebaseTesting: Cypress, Jest, Enzyme, React-Testing Library, Playwright, MSTest, JTest,Paradigm: OOP, TDD, BDD, AHA, SOLIDOther: Data Structure and Algorithm, Webpack, Vite, Jenkins, CICD, OAuth2.0, Auth0,Okta, RabbitMQ, Kafka, Kubernetes, Docker, Redis, Memcache, Infrastructure of code(Terraform), Power BI, Mendix, AEM, ADA, Lighthouse, Kibana, SonarQube, ZAP, Varacode, Datadog, Github, Gitlab
Foot Locker
View- Website:
- footlocker.com
- Employees:
- 8431
-
Senior Full Stack EngineerFoot Locker Dec 2023 - Present-Led cross-functional teams to deliver seamless web solutions, conducted code reviews, and mentored junior developers.- Spearheaded the migration to the latest versions of React and Angular, significantly improving performance and maintainability.- Developed and integrated microservices using Azure, Node.js, Java, Python, AEM, ADA, Nx, and .NET Core.- Enhanced application stability and user satisfaction by resolving complex issues.- Fostered a culture focused on UI/UX best… Show more -Led cross-functional teams to deliver seamless web solutions, conducted code reviews, and mentored junior developers.- Spearheaded the migration to the latest versions of React and Angular, significantly improving performance and maintainability.- Developed and integrated microservices using Azure, Node.js, Java, Python, AEM, ADA, Nx, and .NET Core.- Enhanced application stability and user satisfaction by resolving complex issues.- Fostered a culture focused on UI/UX best practices and code standards, resulting in a 30% reduction in bug reports and a 25% improvement in overall user satisfaction.- Managed project milestones, budgets, and risks, achieving a 98% on-time delivery rate and a 5% increase in project profitability. - Optimized application performance and security, ensuring robustness and reliability of backend systems.- Created interactive and user-friendly UIs, designing and developing full-stack applications using modern industry-adopted languages and frameworks.- Developed and maintained real-time chat functionality using WebSocket technology, improving user engagement and retention.- Demonstrated Experience in conducting accessibility audits , identifying issues, and implementing remediation strategies to enhance user accessibility.- Proficient in ensuring web and application accessibility by following WCAG standards, making digital content inclusive to all users.- Developed applications using modern JavaScript features introduced in ES6 such as arrow functions, template literals, destructuring assignment, and spread syntax. Show less -
Senior Full Stack DeveloperAmazon Oct 2021 - Dec 2023- Led the full-stack development of a high-performance eCommerce website using React, Next.js, Angular, Node.js, Java, .NET, Restful API, GraphQL, Redis, Kafka, Kubernetes, Nx, MongoDB, and AWS.- Maintained a comprehensive library of reusable React components, ensuring all web pages were pixel-perfect and mobile-responsive.- Migrated an older JavaScript project to TypeScript, leveraging Node.js for backend services, resulting in improved code scalability and maintainability.-… Show more - Led the full-stack development of a high-performance eCommerce website using React, Next.js, Angular, Node.js, Java, .NET, Restful API, GraphQL, Redis, Kafka, Kubernetes, Nx, MongoDB, and AWS.- Maintained a comprehensive library of reusable React components, ensuring all web pages were pixel-perfect and mobile-responsive.- Migrated an older JavaScript project to TypeScript, leveraging Node.js for backend services, resulting in improved code scalability and maintainability.- Achieved 90% code coverage with Jest, React Testing Library, and Cypress.- Implemented CI/CD pipelines using Jenkins, Docker, and Kubernetes, streamlining deployments and increasing team efficiency.- Mentored and managed a team of three junior developers, fostering a collaborative environment.- Led efforts to optimize application performance, reducing response times by 30% and enhancing user experience.- Conducted code reviews and mentored junior developers, fostering a culture of code quality and best practices.- Integrated GraphQL API queries and mutations deployed on AWS Amplify, enabling seamless and efficient data retrieval and manipulation.- Produced well-documented technical documentation and well-commented code for open-source consumption, contributing to the broader developer community. Show less -
Full Stack DeveloperCapgemini Apr 2017 - Sep 2021- Revamped an employer marketing platform using React and TypeScript, utilizing GraphQL for efficient data management.- Created a scalable design system with Material UI, enhancing UI user-friendliness and long-term maintainability.- Integrated third-party APIs for enhanced functionalities, including payment gateways and data analytics services.- Migrated infrastructure to AWS, optimizing performance, security, and operations, and implemented CI/CD pipelines, reducing deployment… Show more - Revamped an employer marketing platform using React and TypeScript, utilizing GraphQL for efficient data management.- Created a scalable design system with Material UI, enhancing UI user-friendliness and long-term maintainability.- Integrated third-party APIs for enhanced functionalities, including payment gateways and data analytics services.- Migrated infrastructure to AWS, optimizing performance, security, and operations, and implemented CI/CD pipelines, reducing deployment times by 50%.- Developed automated testing frameworks with Jest and Cypress, achieving 80% test coverage.- Developed robust RESTful APIs with Node.js, hosted on Azure for scalability.- Integrated DevOps practices with Docker, Kubernetes, and Azure, establishing a CI/CD pipeline.- Collaborated closely with a seasoned Agile team to deliver high-quality products on time and within budget. Show less -
Wb DeveloperTrueaccord Apr 2013 - Mar 2017- Improved security features by 25% by enhancing privacy controls using C# and .NET in an internal team.- Utilized the modular architecture to define a range of web components, which were then developed into reusable pieces using HTML, CSS, and JavaScript, serving as the foundation for various web projects.- Specialized in refining the design system and web APIs, making extensive use of tools and languages prevalent during that period, such as jQuery, Bootstrap, and RESTful APIs.-… Show more - Improved security features by 25% by enhancing privacy controls using C# and .NET in an internal team.- Utilized the modular architecture to define a range of web components, which were then developed into reusable pieces using HTML, CSS, and JavaScript, serving as the foundation for various web projects.- Specialized in refining the design system and web APIs, making extensive use of tools and languages prevalent during that period, such as jQuery, Bootstrap, and RESTful APIs.- Collaborated extensively with team members to thoroughly analyze more than 50 business requirements, determine detailed design specifications, and provide guidance throughout the application development process.- Actively participated in all phases of the Software Development Life Cycle (SDLC), including design, development, testing, and deployment, ensuring a seamless and efficient development process.- Developed a custom search engine to interact with PostgreSQL, and CosmosDB, utilizing Express and .NET to provide a fast and efficient web interface. Show less
Mark Williams Education Details
Frequently Asked Questions about Mark Williams
What company does Mark Williams work for?
Mark Williams works for Foot Locker
What is Mark Williams's role at the current company?
Mark Williams's current role is Seasoned Full Stack Engineer | Mastering React, Angular, Node.js, AWS | Driving Performance, Scalability, and Security in Web Applications.
What schools did Mark Williams attend?
Mark Williams attended Georgia State University.
Who are Mark Williams's colleagues?
Mark Williams's colleagues are Reza Larasati Susanto, Sara Osman, Makanna Palmore, Kamal Qadoura, Darshana Nathan, Nicole Mcdonald, Vanessa Revita.
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Mark Williams
Pleasant Grove, Ut2everlight.com, gmail.com -
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Atlanta, Ga3yahoo.com, deloitte.co.uk, deloitte.com -
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Mark Williams
Greater Philadelphia3a-ci.com, aciclinical.com, indegene.com
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