Freelance Software Engineers in California

Freelance Software Engineers in CaliforniaFreelance Software Engineers in California

Projects People

Alexa Stefankiewicz

Full-Stack Developer

Full-Stack Developer

Cover image for Currents Market UI Library

Currents Market UI Library

0

16

Cover image for Centerfield Media

Centerfield Media

0

10

Cover image for PINS Advantage

0

9

Cover image for Mente Operandi

0

7

Software Engineer(2)

PROSan Diego, USA

Want A Brilliant Framer Website? 💻 Lets talk!

$10k+: Earned

9x: Hired

4.8: Rating

124: Followers

Top

expert

+1

Want A Brilliant Framer Website? 💻 Lets talk!

Cover image for Quartile - Fullstack Web App Development

Quartile - Fullstack Web App Development

1

64

Cover image for Quartile - Full Stack Mobile Development

Quartile - Full Stack Mobile Development

1

36

Cover image for Gym Class - Website

Gym Class - Website

3

468

Cover image for Swiss Army Labs - Website

Swiss Army Labs - Website

3

119

Software Engineer(2)

PROSan Jose, USA

freelancer building what you want, how you want

$10k+: Earned

65x: Hired

5.0: Rating

16: Followers

Expert

freelancer building what you want, how you want

Cover image for TastyComms / Tracker

TastyComms / Tracker

1

70

Cover image for Flowchart (Idea Organizer)

Flowchart (Idea Organizer)

0

8

Cover image for AR Glasses with ChatGPT / Video integration.

AR Glasses with ChatGPT / Video integration.

1

101

Cover image for Airbnb Coordinates Scraper Development

Airbnb Coordinates Scraper Development

3

66

Software Engineer(1)

Aurelien GERIER

PROLos Angeles, USA

Expert & Passionate Fullstack Engineer 11+ yrs exp & Media

$50k+: Earned

5x: Hired

4.9: Rating

65: Followers

Top

Expert & Passionate Fullstack Engineer 11+ yrs exp & Media

Cover image for Lyveat

1

78

Cover image for Redwood Logistics

Redwood Logistics

0

143

Cover image for UpSwipe

0

26

Cover image for Data Legal Drive

Data Legal Drive

0

24

Software Engineer(4)

PROSacramento, USA

iOS Developer & Designer: From Concept to Completion

$50k+: Earned

5x: Hired

5.0: Rating

23: Followers

iOS Developer & Designer: From Concept to Completion

Cover image for Sage AI Chatbot Development

Sage AI Chatbot Development

2

34

Cover image for Follk, A Social Platform Experiment

Follk, A Social Platform Experiment

2

43

Cover image for Magic, A Short Form Video Platform

Magic, A Short Form Video Platform

1

24

Rebrand + Logo Design for Mission MFG

1

4

Software Engineer(1)

PROAlhambra, USA

Senior Full-Stack Engineer | Web Development | AI Automation

New to Contra

Senior Full-Stack Engineer | Web Development | AI Automation

Cover image for Luxury Jewelry E-Commerce Website – Gemsparx Front-End & Ful...

Luxury Jewelry E-Commerce Website – Gemsparx Front-End & Full-Stack Developer (React & Node.js) Gemsparx is a luxury jewelry marketing and e-commerce website designed to showcase diamonds, fine jewelry, and custom design services with a high-end user experience. I developed this project using React for a fast, responsive front end and Node.js for backend functionality. The focus was on creating a visually elegant, conversion-friendly interface while maintaining performance, scalability, and clean code architecture. The website features structured product categories, promotional sections, custom design workflows, and a modern UI optimized for both desktop and mobile users. This project demonstrates my ability to build premium marketing websites that align with luxury brand aesthetics and business goals.

17

217

Cover image for I help teams and founders ship reliable, scalable full-stack...

I help teams and founders ship reliable, scalable full-stack applications from early MVPs to production systems used at scale. As a Senior Full-Stack Developer, I focus on: Building clean, maintainable frontends with strong UX foundations Designing resilient backends, APIs, and data models Making pragmatic tech decisions that hold up over time Shipping fast without cutting corners What I typically work on: SaaS platforms & internal tools Complex dashboards and data-driven apps API-first systems and integrations Performance, refactors, and technical debt cleanup I’m opinionated about code quality, architecture, and ownership but flexible about tools and stacks when the problem calls for it. If you need someone who can own features end-to-end, communicate clearly, and think beyond just “making it work,” let’s talk.

11

136

Cover image for Building Websites & CMS Solutions
I’m

Building Websites & CMS Solutions I’m currently working on modern websites and CMS-based projects using no-code and low-code platforms. I build and customize projects with: • Wix & Wix Studio (https://www.wix.com/)• WordPress (https://wordpress.com/)• Webflow (https://webflow.com/)• Bubble.io (http://Bubble.io) I help businesses and startups create fast, responsive, and scalable websites, from landing pages to full CMS and web apps. Open to new projects and collaborations.

0

38

Cover image for MSPTerms – SaaS Platform for Document Management & MSP Opera...

MSPTerms – SaaS Platform for Document Management & MSP Operations http://mspterms.com/ I developed a scalable SaaS web application for MSPTerms, a document management and business strategy platform designed for managed service providers (MSPs). The project involved building a fast, secure, and intuitive user interface using Nuxt.js, including authentication flows, dashboard layouts, and responsive landing pages. I focused on performance optimization, clean UI/UX, and seamless user experience across devices. The result is a modern, production-ready SaaS platform that enables MSPs to manage documents, streamline operations, and support business growth with a professional, easy-to-use system.

13

119

Software Engineer(2)

Full-Stack Engineer & Product Designer (Mobile + Web)

New to Contra

Full-Stack Engineer & Product Designer (Mobile + Web)

Cover image for Showcasing the website for Drop The Routine with screenshots...

Showcasing the website for Drop The Routine with screenshots highlighting the clean, modern details. Drop The Routine is a creator platform that lets specialists and influencers build, share, and monetize structured routines — from fitness to skincare to finance. It features: 💡 A step-by-step builder that turns expert knowledge into guided routines 🛍️ Built-in affiliate tools for monetizing recommended products 📱 Seamless experience across web and mobile This project showcases full-stack design and development — React/Next.js/Chakra UI, React Native, and AWS infrastructure. It's been a blast to build!

1

91

Cover image for Excited to share this one! Drop The Routine is a web and mob...

Excited to share this one! Drop The Routine is a web and mobile platform where routines can be built, shared, monetized, and followed. It gives creators and specialists a new way to turn their expertise into income — and gives their followers structured, step-by-step routines designed for real results. Built-in progress tracking helps users stay consistent and accountable. From skincare and haircare to fitness, nutrition, and personal finance — Drop The Routine empowers creators across every niche to help their audiences follow through. This screen shows the creator landing page — where we introduce the platform’s vision and invite experts to join early. I built this with React/Chakra UI/Next.JS, all served and hosted on AWS infrastructure.

2

23

225

Cover image for I built Didja — a minimalist habit tracking app — to help me...

I built Didja — a minimalist habit tracking app — to help me achieve my longterm goals by holding me accountable to daily action. It lets users define their goals, create daily or weekly routines that support them, and stay accountable through simple, structured tracking that promotes action. I designed it to be clean, distraction-free, and genuinely enjoyable to use. I finished it a few months ago, but I still use it everyday!

22

255

Cover image for Drop The Routine can be fully white-labeled for businesses a...

Drop The Routine can be fully white-labeled for businesses and clinics. This version was customized for a prominent sports physical therapy group here in Southern California — giving their patients (and athletes around the world) a seamless way to follow prescribed physical therapy routines, complete with videos, instructions, and progress tracking. It allows practitioners to: 🏥 Assign step-by-step recovery routines directly to patients 📱 Track engagement and outcomes through the app 💬 Educate patients between visits and reinforce accountability Built with React Native and AWS — scalable, branded, and deployable in days.

0

71

Software Engineer(3)

Creative Software Engineer

6: Followers

Creative Software Engineer

Cover image for Eunoia - mymind.com clone - Nextjs

Eunoia - mymind.com clone - Nextjs

1

20

Cover image for Prevail Legal

0

7

Cover image for Sonar - A clone of SoundCloud.

Sonar - A clone of SoundCloud.

0

19

Cover image for Customized ERC-20 Token

Customized ERC-20 Token

0

16

Software Engineer(4)