Freelance Software Engineers in CaliforniaFreelance Software Engineers in California
ProjectsPeople
Alexa Stefankiewicz's avatar
Alexa Stefankiewicz
San Diego, USA
Full-Stack Developer
6
Followers
Full-Stack Developer
Cover image for Centerfield Media
Centerfield Media
0
26
Cover image for Currents Market UI Library
Currents Market UI Library
0
27
Cover image for PINS Advantage
PINS Advantage
0
21
Cover image for Mente Operandi
Mente Operandi
0
22
Software Engineer(2)
Jake Sax's avatar
Jake Sax
proSacramento, USA
iOS Developer & Designer: From Concept to Completion
$100k+
Earned
5x
Hired
5.0
Rating
36
Followers
iOS Developer & Designer: From Concept to Completion
Cover image for UI Development for Bento MacOS App
UI Development for Bento MacOS App
1
9
Cover image for Sage AI Chatbot Development
Sage AI Chatbot Development
2
60
Cover image for OCCI Fashion Platform Redesign and Development
OCCI Fashion Platform Redesign and Development
1
13
Cover image for Follk, A Social Platform Experiment
Follk, A Social Platform Experiment
2
79
Software Engineer(2)
Aayush Palai's avatar
Aayush Palai
proSan Jose, USA
making web & mobile apps that scale | cs + ml @umd
$25k+
Earned
64x
Hired
5.0
Rating
25
Followers
REPLIT_EXPERT

Expert

making web & mobile apps that scale | cs + ml @umd
Cover image for TastyComms / Tracker
TastyComms / Tracker
1
95
Cover image for Flowchart (Idea Organizer)
Flowchart (Idea Organizer)
1
17
Cover image for AR Glasses with ChatGPT / Video integration.
AR Glasses with ChatGPT / Video integration.
2
208
Cover image for Airbnb Coordinates Scraper Development
Airbnb Coordinates Scraper Development
3
88
Software Engineer(1)
Johnny Ha's avatar
Johnny Ha
Alhambra, USA
Senior Full-Stack Engineer | Web Development | AI Automation
$5k+
Earned
1x
Hired
5.0
Rating
21
Followers
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.
5
23
448
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.
14
243
Cover image for Evoke - Project completed successfully
Evoke - Project completed successfully and got ⭐⭐⭐⭐⭐ review🚀 Overview EVOKE is a mindfulness-focused digital experience designed to create a calm, distraction-free space for reflection and presence. Problem Most digital platforms are built for speed and engagement, which can feel overwhelming. The goal was to design a space that encourages stillness instead of stimulation. Approach I focused on creating a minimal and immersive interface using soft visuals, intentional spacing, and slow interactions to guide users into a reflective state. Solution Designed a clean, distraction-free UI Built immersive entry and reflection flows Used calming imagery and typography to shape the experience Developed smooth transitions to support a sense of presence Tech & Tools Web development, frontend engineering, UX/UI design Outcome The final product delivers a unique digital experience that prioritizes calmness and intentional interaction, standing out from traditional high-stimulation platforms. 👉 https://www.evoke-space.com/
1
2
175
Cover image for EVOKE - Mindfulness & Reflection Web Experience
$6K+ earned
EVOKE - Mindfulness & Reflection Web Experience
4
21
Software Engineer(2)
Aurelien GERIER's avatar
Aurelien GERIER
proLos Angeles, USA
Fullstack Engineer | 14+ yrs Shipping React,Next.js,Node,AI
$50k+
Earned
6x
Hired
4.9
Rating
126
Followers
TOP_INDEPENDENT

Top

Fullstack Engineer | 14+ yrs Shipping React,Next.js,Node,AI
Cover image for Redwood Logistics
Redwood Logistics
0
155
Cover image for Lyveat
Lyveat
1
106
Cover image for UpSwipe
UpSwipe
0
32
Cover image for Data Legal Drive
Data Legal Drive
0
31
Software Engineer(4)
Harrison Songolo's avatar
Harrison Songolo
proPetaluma, USA
Interactive Websites & Full-Stack SaaS Builds
5.0
Rating
13
Followers
Interactive Websites & Full-Stack SaaS Builds
Cover image for An update on the red-team
An update on the red-team loop from my last post. I turned it from a one-off script into a real harness I run with one command against the whole stack. It attacks the backend, replays out-of-order Stripe events to prove a cancelled plan can't come back, and it screenshots the site and fails if the page renders as a flat white frame. That last one is a real bug I hit: the old checks passed because there were no console errors, but the entire hero was painting white on certain GPUs. I also added a tripwire that fails the build if I ever delete something already built and verified, or reintroduce a mistake I already fixed. Iterating on a live 3D site, the hard part is not breaking the thing that already worked. It runs in CI now, so every push gets checked. Live: xkaii.studio (http://xkaii.studio)Security: xkaii.studio/security
1
157
Cover image for Agent Skills: An Authoring Standard for AI Tooling
Agent Skills: An Authoring Standard for AI Tooling
0
6
Cover image for Backline: A Native DAW and Video Editor in Sync
Backline: A Native DAW and Video Editor in Sync
0
10
Cover image for Multi-Tenant Isolation in PostgreSQL
Multi-Tenant Isolation in PostgreSQL
0
9
Software Engineer(4)