AeroLeads people directory · profile

James Sayer Email & Phone Number

Full Stack Engineer | Expert in JavaScript | React | Next | Node.js | .Net | Java at Catalyte
Location: Hartwell, Georgia, United States 4 work roles 1 school
LinkedIn matched
✓ Verified May 2026 3 data sources Profile completeness 86%

Contact Signals

LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Catalyte
Role
Full Stack Engineer | Expert in JavaScript | React | Next | Node.js | .Net | Java
Location
Hartwell, Georgia, United States
Company size
311 employees

Who is James Sayer? Overview

A concise factual answer block for searchers comparing this professional profile.

Quick answer

James Sayer is listed as Full Stack Engineer | Expert in JavaScript | React | Next | Node.js | .Net | Java at Catalyte, a company with 311 employees, based in Hartwell, Georgia, United States. AeroLeads shows a matched LinkedIn profile for James Sayer.

James Sayer previously worked as Senior Full Stack Engineer at Catalyte and Full Stack Engineer at Fnz (Formerly Yieldx). James Sayer holds Bachelor'S Degree, Computer Science from The University Of Georgia.

Company email context

Email format at Catalyte

This section adds company-level context without repeating James Sayer's masked contact details.

Catalyte

Review company-level records connected to James Sayer before choosing the right outreach path.

View email format View company profile Management contacts
Profile bio

About James Sayer

With over 13 years in web development, I specialize in modern technologies like React, Next.js, Angular, Node.js, NestJS, Express.js, JavaScript, and TypeScript. My backend experience also includes .NET Core, C#, and NoSQL, SQL. I've led both front-end and back-end projects, enhancing user interfaces and system performance. Additionally, I have extensive experience migrating legacy JavaScript codebases to TypeScript, building RESTful APIs with Node.js, and leveraging cloud platforms like AWS and Azure for scalable, reliable, and secure application deployment.I thrive in team settings that value open communication, code reviews, and continuous improvement.

Current workplace

James Sayer's current company

Company context helps verify the profile and gives searchers a useful next step.

Catalyte
Catalyte
Full Stack Engineer | Expert in JavaScript | React | Next | Node.js | .Net | Java
baltimore, maryland, united states
Website
catalyte.io
Employees
311
AeroLeads page
Company profile
View company profile Email format
4 roles

James Sayer work experience

A career timeline built from the work history available for this profile.

Senior Full Stack Engineer

Current
Catalyte
  • Spearheaded Development Initiatives: Led the development of cutting-edge managed infrastructure solutions using React, Next.js, and Node.js, driving a 30% boost in system efficiency and a 25% increase in user.
  • Strategic System Migration: Orchestrated the migration from AngularJS to Angular, achieving a 30% improvement in system performance and significantly enhancing scalability and maintainability.
  • Seamless Team Collaboration: Collaborated with cross-functional teams to ensure flawless integration and deployment of new features, facilitating a cohesive and efficient development process.
  • Optimized Code Practices: Implemented best-in-class scalable and maintainable code practices, substantially enhancing system performance and reliability.
  • Leadership and Mentorship: Conducted comprehensive code reviews and mentored three junior developers, fostering a culture of continuous improvement, innovation, and knowledge sharing.
Apr 2021 - Present

Full Stack Engineer

Fnz (Formerly Yieldx)
  • Leveraged React and TypeScript expertise to revamp an employer marketing platform, utilizing GraphQL for efficient data management, resulting in a 40% improvement in data retrieval speed and a 35% enhancement in.
  • Led the creation of a scalable design system from scratch using Material UI and modern JavaScript, enhancing UI user-friendliness and long-term maintainability.
  • Conducted weekly one-on-one feedback and code reviews focused on React and JavaScript best practices, leading to elevated team competence and project quality.
  • Demonstrated backend proficiency by using Python-based tools for database troubleshooting and system log analysis, resolving complex issues.
  • Managed and mentored a dynamic team of developers, overseeing the project life cycle, facilitating continuous learning, and ensuring adherence to best practices in a collaborative environment.
Sep 2019 - Apr 2021

Frontend Engineer

Facebook
  • Utilized React and TypeScript for front-end development, implemented RESTful APIs and GraphQL with Node.js for seamless connectivity, and hosted on AWS for scalability, improving data retrieval speed by 40% and system.
  • Leveraged AWS cloud technologies across the development cycle for storage, computation, and database management, ensuring a high-availability architecture.
  • Integrated DevOps practices, using tools like Docker and AWS to establish a CI/CD pipeline, streamlining testing and deployment for improved development speed and code quality.
  • Provided weekly one-on-one feedback and code reviews, focusing on best practices in web development, including HTML5, CSS3, and JavaScript, to help uplift the skills and code quality within the team.
Dec 2015 - Sep 2019

Web Developer

Cognizant
  • Participated in an internal team focused on privacy and control management, where I contributed to enhancing the security features of our web platform using technologies like PHP and jQuery.
  • 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.
Sep 2010 - Dec 2015
Team & coworkers

Colleagues at Catalyte

Other employees you can reach at catalyte.io. View company contacts for 311 employees →

DP Danielle Plugge Danielle Plugge Colleague at CatalyteBaltimore, Maryland, United States, United States View → JS Jeff Snyder Jeff Snyder Colleague at CatalyteBaltimore, Maryland, United States, United States View → RK Ryan Kloud Ryan Kloud Colleague at CatalyteChicago, Illinois, United States, United States View → DW Deborah Wallace Deborah Wallace Colleague at CatalyteGreater Phoenix Area, United States View → SJ Sandouine Joseph Sandouine Joseph Colleague at CatalyteBoston, Massachusetts, United States, United States View → JM Jaron Mojet Jaron Mojet Colleague at CatalyteGreater Chicago Area, United States View → MW Maxwell Wilson Maxwell Wilson Colleague at CatalyteColorado Springs, Colorado, United States, United States View → BM Benjamin Maritz Benjamin Maritz Colleague at CatalytePortland, Oregon, United States, United States View → DC Devon Castagno Devon Castagno Colleague at CatalyteBeaverton, Oregon, United States, United States View → JL Janet Leu Janet Leu Colleague at CatalyteChicago, Illinois, United States, United States View →
1 education record

James Sayer education

FAQ

Frequently asked questions about James Sayer

Quick answers generated from the profile data available on this page.

What company does James Sayer work for?

James Sayer works for Catalyte.

What is James Sayer's role at Catalyte?

James Sayer is listed as Full Stack Engineer | Expert in JavaScript | React | Next | Node.js | .Net | Java at Catalyte.

Where is James Sayer based?

James Sayer is based in Hartwell, Georgia, United States while working with Catalyte.

What companies has James Sayer worked for?

James Sayer has worked for Catalyte, Fnz (Formerly Yieldx), Facebook, and Cognizant.

Who are James Sayer's colleagues at Catalyte?

James Sayer's colleagues at Catalyte include Danielle Plugge, Jeff Snyder, Ryan Kloud, Deborah Wallace, and Sandouine Joseph.

How can I contact James Sayer?

You can use AeroLeads to view verified contact signals for James Sayer at Catalyte, including work email, phone, and LinkedIn data when available.

What schools did James Sayer attend?

James Sayer holds Bachelor'S Degree, Computer Science from The University Of Georgia.

Find 750M verified contacts

Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.

People with similar names

Check these profiles if this is not the James Sayer you were looking for.

James Sayer
James Sayer
Principal At Our Lady Queen Of Angels School
New York City Metropolitan Area
1 email domain
James Sayer
James Sayer
Director And Research Scientist At University Of Michigan Transportation Research Institute
Ann Arbor, Mi
2 email domains
View similar profiles