I build the kind of WordPress and backend systems that don't fit into a page builder, such as custom plugins, REST API integrations, MySQL-backed application logic, and the engineering layer that ties the rest of a business's stack together.
Most of my clients come to me when:
◆ Their site is too complex for junior developers
◆ Plugins don't do what they need and someone has to write real code
◆ They need a system, not just a website
◆ Performance is poor and things keep breaking
◆ They need a senior engineer to own the technical side
--- Proven Track Record ---
"Jacob is 100% the best freelancer I've ever hired."
⎻ Andrew Epprecht, Phase5Analytics
"You're an incredible WordPress developer… now our site is lightning fast."
⎻ Denise Deverelle, Multifamily Utility Company
"Went above and beyond. One of my best experiences on Upwork."
⎻ Ryan Jordan, XNEffect
"Gets things done faster than any developer I've ever worked with. And done well."
⎻ Chris Johnson, CTO, CrisisTextLine
--- What I Do Best ---
Custom WordPress Development
◆ Custom plugins built around specific business logic
◆ Custom Gutenberg blocks and modern block themes
◆ WooCommerce customizations and integrations
◆ Headless / API-driven WordPress architectures
◆ Performance, Core Web Vitals, and security hardening
API & Integration Development
◆ REST API design and third-party API integrations
◆ Payment gateways and external service connections
◆ Custom internal tools and admin dashboards
◆ Data synchronization and workflow automation
◆ Bridging WordPress with external SaaS, ERPs, and CRMs
Backend Engineering
◆ PHP application development beyond CMS contexts
◆ MySQL schema design and query optimization
◆ Refactoring legacy codebases into something maintainable
◆ Custom business logic and workflow engines
◆ Production-grade architecture for systems that need to scale
--- Who I Work Best With ---
I'm a great fit if you:
◆ Need a senior engineer who can take real ownership of the technical side
◆ Have a growing business with real technical challenges, not a side project
◆ Care about code quality, maintainability, and long-term stability
◆ Want a long-term technical partner, not the cheapest hourly rate
I work with a small number of clients at a time, so each engagement gets the attention it deserves.
--- Who I'm Not a Fit For ---
I'm probably not the right developer if:
◆ You're looking for someone to wire up Elementor, Divi, or another page builder
◆ Your project is a simple theme tweak or one-off plugin installation
◆ You want the lowest hourly rate available on Upwork
◆ You need design, copywriting, or UX work
That's not a knock on those projects. They just aren't the kind of work I'm built for, and there are excellent freelancers on Upwork who specialize in them who'll be a better fit than I would.
--- How I Work ---
I work best on ongoing engagements, such as monthly retainers, multi-month projects, or technical-lead partnerships where I can take real ownership of the codebase. Short, one-off task gigs usually aren't a good fit on either side, though I'll occasionally take on a well-scoped project as a working trial. I communicate clearly, set realistic timelines, and take full responsibility for my work.
--- Let's Talk ---
If you need a senior developer who can actually solve hard problems, in WordPress, in PHP, or in custom backend systems, click the "Invite to Job" button and tell me what you're trying to accomplish.
WordPress Development
WordPress Customization
Plugin Development
WooCommerce
API Integration
PHP
JavaScript
MySQL
Performance Optimization
REST API
WordPress Plugin
Theme Development
WordPress Optimization
WordPress Security
WordPress e-Commerce
Agnes F.
New York, New York
$20/hr
4.7
20 jobs
I'm a B2B sales expert turned B2B copywriter
I've done different projects, from writing to HubSpot CRM setup to sales-related work.
I've spent my career in B2B sales in financial services at companies such as American Express and Capital One, and I still do this work. I know many industries, including fintech, Construction, Trades to Construction, eCommerce, Manufacturing, Wholesale, Medical, Dental, and Services.
As a salesperson, I bring urgency, strong messaging highlighting pain points, and a call to action to my writing. I focus on conversion, education, and brand authority in my nurture and newsletter content. I have experience with cold emails, welcome emails, post-purchase emails, shopping cart abandonment campaigns, and nurture campaigns.
I can also create posts and articles (LinkedIn) to build up your content marketing and authority brand status.
I'm a Certified HubSpot Email Marketer. I'm trained in email strategy, best practices, and analytics; I ensure your campaigns perform.
I'd love to discuss your project. I respond to requests in 1 business day.
P.S. My rates are reasonable, given my extensive B2B experience. I'm focused on building a portfolio of B2B writing projects with testimonials showcasing great work.
Copywriting
Email Copywriting
B2B Marketing
Email Marketing Strategy
Email Communication
Marketing Automation Strategy
Customer Relationship Management
Writing
Email Campaign Setup
Business with 1-9 Employees
Email Marketing
HubSpot
Devon B.
New York, New York
$65/hr
5.0
19 jobs
Hello! My name is Devon, and I am a highly skilled professional with a diverse skill set that includes expertise in audio and music production, web design and development, social media writing, social media content design, resume editing, and Python development. With a degree in Computer Science from Yale University and six years of experience in the technology industry and as an independent musician, I bring a unique blend of technical knowledge and creative prowess to my work.
Please see my specialized profile on "Music Production" for the audio and music services and the "Web Design" profile for my expertise in web design and development, and general software engineering.
Furthermore, my expertise extends to resume editing, where I can help you showcase your skills and experience in the best possible light. With 3 years of experience hiring software engineers at Vimeo, I can optimize your resume to highlight your key achievements and make a strong impression on potential employers. Whether you're a recent graduate or an experienced professional, I can craft a tailored resume that showcases your unique strengths and maximizes your chances of success.
Lastly, my proficiency in Python development allows me to undertake a wide range of technical projects. I can develop custom software solutions and automate tasks using Python's robust and versatile capabilities. With a strong foundation in computer science and years of hands-on experience, I can deliver efficient and scalable Python-based solutions that meet your specific requirements.
As a freelancer, I pride myself on my professionalism, attention to detail, and commitment to delivering high-quality work. I value clear communication and collaboration with my clients to ensure that their goals and expectations are met.
I'm excited about the possibility of working together to achieve your objectives. If you have any questions or would like to discuss your project further, please feel free to reach out. Let's collaborate to bring your ideas to life!
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