Post a Job
David Song
David Song

Senior Application Developer / Technical SEO Web Developer

Actively looking · Member since 5 Oct 2026
Message
Location
New York, United States
Desired salary
Unspecified
Work preference
Remote Only
Experience level
Senior

About

Professional summary

I am an accomplished web developer and Senior Application Developer with more than six years of experience in technical SEO, modern web development, and site performance optimization. I specialize in building accessible, discoverable, high-performing web experiences that support measurable business outcomes.

I have hands-on expertise with HTML, CSS, JavaScript, Vue.js, React, Node.js, server-side rendering, responsive design, and cross-browser compatibility. My technical SEO background includes metadata management, robots.txt configuration, redirects, canonicalization, XML sitemaps, hreflang, and error management.

In my current role, I develop marketing websites and internal SEO tools while improving organic visibility, page performance, indexing, and user engagement. I have led initiatives that increased organic traffic, improved page-load speed, reduced downtime, and strengthened site-health monitoring.

I also bring IT infrastructure and migration experience, including SQL Server, Windows Server, Microsoft Access, workstation upgrades, application testing, vendor coordination, and end-user technical support. I am comfortable documenting processes, creating test plans, and training employees on systems and business workflows.

I enjoy collaborating across engineering, marketing, and business teams to translate technical requirements into practical solutions. I have mentored junior developers, conducted SEO workshops, and used analytics and monitoring data to guide continuous improvements.

I hold a Bachelor of Science in Computer Science from Stony Brook University. My background combines web development, technical SEO, quality assurance, and IT operations, enabling me to improve both digital products and the processes that support them.

Skills

28 capabilities
301 RedirectsA B TestingAgile CollaborationCanonicalizationContent ManagementCSSDocumentationFunctional TestingHreflang ImplementationHTMLJavaScriptLoad TestingMentoringMetadata ManagementNegative TestingPerformance MonitoringPerformance OptimizationQuality AssuranceResponsive DesignSecurity TestingSEO StrategyServer Side RenderingSmoke TestingSoftware TestingTechnical SEOTechnical SupportVue.JsWeb Development

Tech stack & tools

Working toolkit

Application Hosting

Cloudflare

Collaboration

ConfluenceJiraTrello

Communications

Slack

Data Stores

MySQL

Design

Figma

Development

DockerDrupalGitGitHubWordPress

Languages & Frameworks

AngularBootstrapCSS3FlaskFoundationHTML5JavaJavaScriptMagentoNode.jsPHPPythonReact

Experience

Career history

Senior Application Developer Brooklyn Navy Yard Development Corporation

Architected and implemented a technical SEO strategy focused on metadata management and robots.txt configuration, increasing organic traffic by 30%. Developed a marketing website with HTML and CSS that followed SEO best practices, improved page-load speed by 40%, and reduced bounce rates.

Built redirect and 404-error handling systems to preserve page equity during URL migrations and improve engagement. Optimized server-side rendering, maintained XML sitemaps and internal URLs, and implemented site-health monitoring that reduced downtime by 50%.

Collaborated with cross-functional teams to create JavaScript-based internal SEO tools and a Vue.js interface for real-time analytics. Conducted metadata and SEO training for marketing teams and mentored junior developers on technical SEO and web development practices.

IT Specialist Hadson Toko Trading

Managed an IT migration initiative covering deprecated data, applications, and operating systems. Upgraded SQL Server from 2000 to 2019, Windows Server from 2003 to 2019, Microsoft Access from 2003 to 2019, and employee workstations from Windows XP/7 to Windows 10.

Coordinated with an external vendor to onboard a new business software application. Documented migration procedures and test plans, and performed parallel testing of accounting, inventory, and sales functionality to identify improvements in business processes.

Provided user support for workstations, networks, drives, printers, and scanners. Also interviewed and trained new employees on business processes and basic IT functions.

Full Stack Developer Intern Dreamatch

Set up Amazon DynamoDB within a Spring Boot application to initialize and manage consumer, business, and file data.

Created message-board tables and controller functionality to support communication between businesses and consumers. Integrated Google Sign-In into the business web application to simplify authentication and improve consumer access.

Software Quality Assurance Intern NYC Department of City Planning

Tested the front end of NYC's Zoning Application Portal with a small QA team. The portal enabled Department of City Planning staff and clients to manage and review land-use applications online.

Tested user interfaces, functionality, SharePoint integration, and security. Reviewed functional design documents, created and executed several hundred test cases, participated in bug-triage meetings, verified fixes in Azure DevOps, and performed smoke and negative testing.

Education

Learning history

Stony Brook University

Bachelor of Science, Computer Science

Bachelor of Science in Computer Science.

This professional hasn’t added portfolio projects yet.

This professional hasn’t listed any services yet.

Report this profile

Why are you reporting this profile?
Share
Jobs Talent AI Tools Salaries
Menu