Freelancers in Denver

Freelancers in DenverFreelancers in Denver

Projects People

Serge Herasymchuk

PROHighlands Ranch, USA

Top Kajabi Expert | Website Designer | Migration Specialist

$250k+: Earned

148x: Hired

5.0: Rating

636: Followers

Top

expert

+3

Top Kajabi Expert | Website Designer | Migration Specialist

Cover image for Full Design & Kajabi Website Creation

Full Design & Kajabi Website Creation

4

29

Cover image for Kajabi Course Development & Website Optimization

Kajabi Course Development & Website Optimization

4

40

Cover image for Website Audit, Redesign & Kajabi Optimization

Website Audit, Redesign & Kajabi Optimization

3

19

Cover image for Web design & Kajabi Website Creation

Web design & Kajabi Website Creation

2

43

Computer Software(10)

Product Designer & Framer Expert

$1k+: Earned

4x: Hired

5.0: Rating

55: Followers

expert

Product Designer & Framer Expert

Cover image for Quail Group Website Refinements

Quail Group Website Refinements

1

4

Cover image for Quail Group Framer Website

Quail Group Framer Website

18

239

Cover image for Personal Portfolio Overhaul

Personal Portfolio Overhaul

2

42

Cover image for Virtual Hangar Redesign and Enhancements

Virtual Hangar Redesign and Enhancements

0

15

Computer Software(1)

Developing custom websites and scalable software.

8: Followers

Developing custom websites and scalable software.

Cover image for Defying Gravity: Empowering Women’s Post-Career Journeys

Defying Gravity: Empowering Women’s Post-Career Journeys

0

11

Cover image for ECP Web App: Streamline Vision Plan Invoicing & Estimates

ECP Web App: Streamline Vision Plan Invoicing & Estimates

0

6

Cover image for Sneakertopia - Sneaker Design with AI-Powered Customization

Sneakertopia - Sneaker Design with AI-Powered Customization

0

37

Cover image for MDPocket-Healthcare e-commerce platform

MDPocket-Healthcare e-commerce platform

0

32

Computer Software(2)

Marketing Operations + Web Developer

1x: Hired

1: Followers

Marketing Operations + Web Developer

Cover image for Portfolio

1

19

Cover image for What would you improve about social media? I'm starting to b...

What would you improve about social media? I'm starting to build a site based on the Interpals model, with a higher focus on privacy and security. My biggest peeve with that site is that most people who have joined in the last five years don't even understand its purpose. The number of bad actors and disengaged members has become absurd. A site birthed by the idea of international pen pals using the internet has become FILLED with people who want private language tutoring for free, a marriage visa to go to another country, or just plain troll (or send "Hi," and then disappear). I'm trying to plan ways for my new site to cultivate a culture towards genuine connection and interaction, along with putting a lot more roadblocks up for bots and the like (using MFA with auth, rate limiting my APIs, etc.). What might you plan?

1

13

88

Cover image for I threw it in my portfolio, but now realizing I can share mo...

I threw it in my portfolio, but now realizing I can share more here, thought I'd mention I built a data normalization tool that works directly with your HubSpot account. With a couple clicks, it helps normalize common data fields to save you hours of manual work.

1

42

Cover image for Optimizing HubSpot for Global Staffing

Optimizing HubSpot for Global Staffing

0

0

Computer Software(1)

Full stack developer with 13 years of experience.

New to Contra

Full stack developer with 13 years of experience.

Cover image for Zero-JavaScript Astro one-page site with

Zero-JavaScript Astro one-page site with Lighthouse 98+, WCAG 2.1 AA compliance, and AI discovery optimization. Built the exact kind of site I want to be hired to build. One-page portfolio site for my own creative studio, built to demonstrate the performance and accessibility work I offer clients. Astro 5 static site with zero JavaScript shipped to the browser. CSS Custom Properties for theming, self-hosted WOFF2 fonts (no third-party requests), deployed on Cloudflare Pages. Lighthouse scores consistently 98-100 across performance, accessibility, best practices, and SEO. WCAG 2.1 AA compliant with tested color contrast, keyboard navigation, and semantic HTML throughout. AI discovery optimized with structured content designed for LLM retrieval. ::Live at elementalsugar.com (http://elementalsugar.com).

0

29

Cover image for Full-stack Rails development for an

Full-stack Rails development for an RV camping discovery platform serving 750,000+ members across 39,000+ campgrounds with 170,000+ user reviews. Enhanced Mapbox-based campground discovery with advanced filtering by amenity, price, and accessibility. Implemented cross-brand OAuth supporting single sign-on across Roadpass Digital's portfolio of travel products. Optimized PostgreSQL queries and refactored legacy code, reducing page load times by ~30% on high-traffic search pages. Built Segment analytics tracking user behavior across discovery and booking flows. Standardized React and Stimulus components into a shared library with RSpec test coverage across 3 Rails applications.

0

31

Cover image for Enterprise marketing site migration for

Enterprise marketing site migration for a food safety SaaS company. Two full builds: initial Astro + DatoCMS implementation, then a ground-up Next.js 14 migration with a modular block system so marketing could independently build, preview, and publish landing pages without developer involvement. Built a custom TypeScript component library with GraphQL type safety, reducing new page build time from days to hours. Migrated 246 blog posts and 32 landing pages with zero data loss, maintaining SEO rankings through redirect mapping and metadata preservation. Drove Lighthouse scores from the high 80s to 98-99. Documentation doubled as developer onboarding and AI context, so SafetyChain's own developers could ship features directly from the docs.

0

50

Cover image for Multi-year technical partnership (2019-present) for

Multi-year technical partnership (2019-present) for a women-only off-road navigation rally across Nevada and California. Work has spanned WordPress, custom plugins, a real-time GPS tracking dashboard (React + Mapbox, 65+ vehicles with satellite failover), scoring system modernization, and live broadcast graphics. Most recent: browser-based live overlay system for OBS/vMix. Built a PHP API layer on top of the existing scoring database without touching the scoring logic, then created JavaScript overlays that production controls in real-time. Standings, challenge results, sponsor graphics, all running as transparent overlays during the 2025 rally. Also built a team bio pipeline (JotForm to WordPress, 130+ profiles/season) and Arduino-based vehicle telemetry hardware for areas with zero cell coverage.

0

48

Computer Software(1)

Writing better software.

New to Contra

Writing better software.

Cover image for 3D Animated Landing Page Development

3D Animated Landing Page Development

0

2

Cover image for Primordium: A Decentralized Business Enterprise on Ethereum

Primordium: A Decentralized Business Enterprise on Ethereum

0

2

Cover image for Development of API and Dashboard for Reduce Reuse Grow Inc.

Development of API and Dashboard for Reduce Reuse Grow Inc.

0

5

Cover image for An Ethereum-based Custodial Wallet Application Template

An Ethereum-based Custodial Wallet Application Template

0

8

Computer Software(1)

Expert in Written Content | Blogs/Web/Email/Social/More

5.0: Rating

26: Followers

Expert in Written Content | Blogs/Web/Email/Social/More

Cover image for Writer/Editor for a High-Leverage Survey White Paper

Writer/Editor for a High-Leverage Survey White Paper

0

4

168-Page Brand Guideline in 10 Days

0

2

Cover image for Bringing Rare Whiskeys to Store Customers Via Newsletter Series

Bringing Rare Whiskeys to Store Customers Via Newsletter Series

0

1

Cover image for Blog post to launch major 'Shift Everywhere' campaign

Blog post to launch major 'Shift Everywhere' campaign

0

1

Computer Software(2)

Software Engineer | JavaScript, React, Python, SQL, Flask

New to Contra

Software Engineer | JavaScript, React, Python, SQL, Flask

Cover image for Personal Portfolio Website Development

Personal Portfolio Website Development

0

5

Cover image for Branded Book Collection Website Design

Branded Book Collection Website Design

0

3

Cover image for Paws-ibilities Rescue Web Application

Paws-ibilities Rescue Web Application

0

3

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Computer Software(1)