Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Hi, I'm Jacob Williams, a Senior Software Engineer with extensive experience in frontend and backend development. I've worked with cutting-edge technologies like React, Angular, Node.js, and AWS to build scalable and efficient applications. I'm passionate about creating tools that improve user experience and operational workflows, and I enjoy collaborating in Agile teams to deliver quality software. Throughout my career, I've contributed to projects at major companies such as Scale AI and Grammarly, developing everything from annotation tools to real-time dashboards and fraud detection systems. I'm always eager to learn new technologies and mentor others in their coding journey.…Hi, I'm Jacob Williams, a Senior Software Engineer with extensive experience in frontend and backend development. I've worked with cutting-edge technologies like React, Angular, Node.js, and AWS to build scalable and efficient applications. I'm passionate about creating tools that improve user experience and operational workflows, and I enjoy collaborating in Agile teams to deliver quality software. Throughout my career, I've contributed to projects at major companies such as Scale AI and Grammarly, developing everything from annotation tools to real-time dashboards and fraud detection systems. I'm always eager to learn new technologies and mentor others in their coding journey.

Jacob Williams

Programmer, Developer, Web Developer, +2





Hi, I'm Jacob Williams, a Senior Software Engineer with extensive experience in frontend and backend development. I've worked with cutting-edge technologies like React, Angular, Node.js, and AWS to build scalable and efficient applications. I'm passionate about creating tools that improve user experience and operational workflows, and I enjoy collaborating in Agile teams to deliver quality software. Throughout my career, I've contributed to projects at major companies such as Scale AI and Grammarly, developing everything from annotation tools to real-time dashboards and fraud detection systems. I'm always eager to learn new technologies and mentor others in their coding journey.…Hi, I'm Jacob Williams, a Senior Software Engineer with extensive experience in frontend and backend development. I've worked with cutting-edge technologies like React, Angular, Node.js, and AWS to build scalable and efficient applications. I'm passionate about creating tools that improve user experience and operational workflows, and I enjoy collaborating in Agile teams to deliver quality software. Throughout my career, I've contributed to projects at major companies such as Scale AI and Grammarly, developing everything from annotation tools to real-time dashboards and fraud detection systems. I'm always eager to learn new technologies and mentor others in their coding journey.

Available to hire

Hi, I’m Jacob Williams, a Senior Software Engineer with extensive experience in frontend and backend development. I’ve worked with cutting-edge technologies like React, Angular, Node.js, and AWS to build scalable and efficient applications. I’m passionate about creating tools that improve user experience and operational workflows, and I enjoy collaborating in Agile teams to deliver quality software.

Throughout my career, I’ve contributed to projects at major companies such as Scale AI and Grammarly, developing everything from annotation tools to real-time dashboards and fraud detection systems. I’m always eager to learn new technologies and mentor others in their coding journey.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior Software Engineer at Scale AI

October 1, 2021 - Present

Led frontend implementation of label conflict resolution UI using React and Zustand, created task-level consensus visualizations with D3.js. Developed React Native mobile dashboard for contributor metrics integrated with Redux and Firebase. Built Angular-based annotation review tool with WebSocket updates and Protobuf for fast data transport. Developed serverless backend automation using Node.js, AWS Lambda, Step Functions, and S3. Implemented Express and PostgreSQL backend service with Redis caching. Built React-based fraud signals review panel powered by Django and Elasticsearch. Migrated moderation dashboard from Angular to React, enforcing code style consistency with ESLint, Prettier, and Storybook. Created scalable Node.js resume screening API using OpenAI embeddings and Pinecone vector search integrated with Kafka stream. Worked in Agile pods using Jira and Figma with pair programming and code reviews.

Senior Software Engineer at Grammarly

September 30, 2021 - August 1, 2025

Built internal analytics dashboard with React and D3.js visualizing user engagement, connected backend via Node.js REST API. Developed Grammarly Keyboard settings panel on Android/iOS using React Native and Redux with GraphQL backend. Created secure team admin portal with Next.js and Firebase Auth, supporting real-time audit logging. Maintained style guide editor built with Angular and RxJS, optimized load time with Webpack. Developed onboarding flow with Vue.js and Apollo Client, implementing A/B tests using LaunchDarkly. Integrated onboarding modal into desktop apps with Electron and TypeScript, managing cross-platform API calls to gRPC services.

Software Engineer at Grammarly

January 31, 2019 - August 1, 2025

Implemented autosave for Grammarly Docs using Backbone.js and IndexedDB for offline sync. Built internal email notification system with Handlebars.js templating and Koa.js backend integrated with SendGrid. Refactored document sharing feature for real-time collaboration using Express.js, MongoDB, and Socket.IO. Migrated legacy monolith dashboard to modular micro frontends with Ember.js and Rollup; backend split into Hapi.js services. Created Help Center customization tool with jQuery UI and MySQL enabling content updates without engineering support.

Software Engineer at Walmart

March 31, 2016 - August 1, 2025

Built dynamic dashboards for internal reporting with Backbone.js and D3.js to visualize sales and inventory trends. Developed mobile web views using jQuery Mobile and Cordova to improve product page load times on legacy Android devices. Created reusable UI components for Seller Portal with AngularJS and Bootstrap for consistent layout. Integrated payment summary views with backend REST APIs using Knockout.js and RequireJS, improving maintainability and reducing redundant calls. Implemented automated UI test cases using QUnit and PhantomJS, detecting over 30 production bugs.