UJJWAL SAKET
Glendale,AZ
Summary
Senior Engineer with 16+ years of experience delivering scalable, high-performance web applications across Banking, Finance, and Crypto domains. Expert in React, Next.js, Redux, JavaScript, and modern UI architecture with strong backend experience in Node.js and Kotlin. Proven ability to architect platforms from scratch, solve complex distributed-system problems, and lead teams in Agile environments. Extensive experience with cloud-native microservices, Kubernetes, GCP, API integrations, and feature-flag-driven development.
Overview
17
17
years of professional experience
Work History
Senior Front-End Engineer
tZERO
10.2021 - Current
- Architected and developed multiple enterprise-grade applications including Onboarding, Trading, and Admin Panels
- Built the front-end platform from scratch using React and Next.js
- Designed scalable UI architecture and enforced component best practices
- Created a reusable component library using Storybook, improving consistency and development velocity
- Implemented LaunchDarkly for feature flag management and controlled feature rollouts
- Integrated Google Tag Manager (GTM) and Google Analytics (GA) for user behavior tracking
- Resolved cross-domain iframe issues by implementing NGINX self-proxying via Kubernetes Ingress
- Designed a theming system using YAML configuration, enabling client-specific branding and customization
- Fixed microservices isolation issues by: Dockerizing individual services, Deploying them on Kubernetes, Enabling inter-service communication as required
- Developed backend services using Node.js and Kotlin
- Integrated multiple third-party vendors using REST APIs
- Exposed internal APIs securely to external partners using Apigee
- Implemented webhooks to consume real-time market data
- Leveraged GCP Pub/Sub for asynchronous messaging and GCP Logging for observability
- Deployed, monitored, and maintained services using ArgoCD
- Managed source code using GitLab and tracked work using JIRA
- Built an agent-based UX model to act as a UX counterpart for rapid prototyping
- Developed a domain-specific chatbot to answer internal and business queries
- Collaborated closely with business stakeholders and mentored engineers on front-end best practices
Senior Front-End Engineer / Technology Lead
American Express
08.2019 - 09.2021
- Led migration of legacy .NET applications to ReactJS front end with Java backend
- Architected the front-end platform from scratch
- Designed and implemented testing frameworks and UI standards
- Developed reusable UI components using React and Redux
- Maintained code repositories using Git / Bitbucket
Senior Developer / Technology Lead
VISA
09.2017 - 07.2019
- Built merchant services dashboards using ReactJS and Redux
- Participated in Agile analysis and design phases
- Developed responsive UI using Material-UI and Flex layouts
- Maintained code using Git / Bitbucket
Senior Developer
Clarient Global LLC
01.2014 - 08.2017
- Developed REST-based Java services querying Oracle DB and generating JSON outputs
- Integrated backend services with UI using AngularJS
- Implemented data access layers using Hibernate
- Provided production support and CI/CD deployments using Jenkins
- Supported application servers in Linux environments
Senior Software Engineer / Developer
Bank of America
07.2012 - 12.2013
- Developed banking applications for corporate, student, and military customers
- Built RESTful services using Java, RESTEasy, Hibernate
- Developed responsive web pages using HTML5, CSS3, JavaScript, AngularJS
- Worked with JBoss, Oracle, Maven, Jenkins
- References: Student & Military Banking portals (Bank of America)
Developer
American Express
02.2012 - 07.2012
- Automated secure data transfers between AmEx and external business partners
- Implemented schedulers, DTOs, and encryption mechanisms
- Identified and documented deployment procedures
- Created stored procedures
- Technologies: WebSphere, Maven, SVN
Developer
Citigroup Private Bank
08.2010 - 01.2012
- Built dynamic reporting applications using Adobe Flex
- Worked across all phases of Waterfall SDLC
- Coordinated between onsite and offshore teams
Junior Developer
Tesco
11.2008 - 07.2010
- Re-engineered front-end UI for global e-commerce platforms
- Developed web pages using HTML, CSS, JavaScript, jQuery
- Participated in knowledge-sharing and UI standardization initiatives
Education
Bachelor of Engineering - Information Science & Engineering
01.2008
Skills
- Front-end development: Reactjs, Nextjs, Redux, JavaScript (ES6), HTML5, CSS3, Material-UI, Storybook
- Back-end development: Nodejs, Kotlin, Java, REST APIs, Python, UV
- Proficient in Google Cloud Platform and container orchestration
- Experience with Third-party API integrations
- Proficient in Google Tag Manager and Google Analytics
- Database management: Oracle 10g, SQL, MongoDB, PostgreSQL
- Tools & Platforms: GitLab, GitHub, SVN, JIRA, Confluence, Jenkins, Maven, Webpack, Cursor, Webstrom
- Experience with Express and Nodejs
- Agile and Waterfall frameworks
Timeline
Senior Front-End Engineer
tZERO
10.2021 - Current
Senior Front-End Engineer / Technology Lead
American Express
08.2019 - 09.2021
Senior Developer / Technology Lead
VISA
09.2017 - 07.2019
Senior Developer
Clarient Global LLC
01.2014 - 08.2017
Senior Software Engineer / Developer
Bank of America
07.2012 - 12.2013
Developer
American Express
02.2012 - 07.2012
Developer
Citigroup Private Bank
08.2010 - 01.2012
Junior Developer
Tesco
11.2008 - 07.2010
Bachelor of Engineering - Information Science & Engineering
Core Skills
React.js, Next.js, Redux, JavaScript (ES6+), HTML5, CSS3, Material-UI, Storybook, Node.js, Kotlin, Java, REST APIs, python, uv, Google Cloud Platform (Pub/Sub, Logging), Docker, Kubernetes, ArgoCD, NGINX, Apigee, Webhooks, Third-Party API Integrations, Google Tag Manager (GTM), Google Analytics (GA), OpsGenie, Oracle 10g, SQL, MongoDB, Postgress, GitLab, GitHub, SVN, JIRA, Confluence, Jenkins, Maven, Webpack, cursor, webstrom, Express, Jboss, node, Agile, Waterfall
Personal Information
Title: Senior Engineer | Technology Lead | Solution Architect | LLM Engineer in Progress