Most marketing sites are slow, generic, or both. I build fast, custom-coded Astro sites with premium motion that feels expensive and performance that doesn't tank your Lighthouse score. Senior Frontend Developer for SaaS, AI, and fintech brands: GSAP animation, Three.js / WebGL 3D, and sub-second Astro builds.
For 6+ years I've been building custom-coded websites and interactive web experiences for SaaS startups, AI companies, fintech platforms, and tech brands. Top Rated Plus on Upwork with $90K+ earned, 100% Job Success, and 42 completed projects.
What I do:
→ Fast Astro websites - content-driven, SEO-optimized, sub-second load times. MDX, CMS integrations, modern frontend tooling. Often: migrations from WordPress and overgrown Webflow sites.
→ Animation & motion design - GSAP, Rive, Motion+, scroll-triggered reveals, custom micro-interactions. Polished feel without dragging Lighthouse scores.
→ Three.js & WebGL - custom 3D scenes, interactive product showcases, scroll-driven WebGL, GLSL shaders, React Three Fiber. For projects that actually need it.
→ React & Next.js - component-based frontends, headless CMS integrations, API-driven UIs.
→ Framer development - custom code overrides, advanced interactions, CMS-powered Framer sites.
→ Figma to code - pixel-perfect implementation from design files into production-ready code.
Tech stack:
Astro, JavaScript, TypeScript, React, Next.js, Three.js, React Three Fiber, WebGL, GLSL, GSAP, Tailwind CSS, Framer, Webflow, Node.js, Vite
Who I work with:
SaaS founders, AI startup teams, marketing leads at funded tech companies, and product teams who need a website that loads fast, ranks well, and feels premium. Most of my clients hire me because their previous developer couldn't deliver the performance, the polish, or the interactive elements and they need someone who actually writes code, not just drags components.
Why clients hire me:
→ I build for performance AND polish - most devs trade one for the other. I don't.
→ I write custom code where no-code tools fall short - Astro setups, animations, custom React components, 3D when needed.
→ I ship fast - most landing pages in 1–3 weeks, full marketing sites in 4–6 weeks.
→ I don't ghost. I don't disappear mid-project. 100% Job Success across 42 jobs is not an accident.
→ I understand both design and code - I work directly with Figma, talk to designers in their language, translate it into clean implementation.
How to work with me:
Send a project brief or DM me with your scope, timeline, and reference sites. I respond within a few hours during EU business hours and can usually start within a few days.
Available for: fixed-price projects, hourly contracts, and ongoing retainers.
Open to long-term partnerships with funded startups.
WebGL
React
Next.js
GSAP
TypeScript
JavaScript
Tailwind CSS
Front-End Development
Landing Page
Page Speed Optimization
Webflow
Framer
Figma
Web Design
UX & UI
Three.js
Claude
OpenAI API
Web Development
Automation
Roman I.
Riga, Latvia
$45/hr
4.8
49 jobs
I build Unity apps people actually use - AR/VR experiences, mobile games, multiplayer titles, museum and kiosk installations, spatial configurators. 13 years in Unity, 6 of them focused on AR/VR/MR: ARKit, ARCore, Meta Quest.
Most of what I ship goes past a single-player demo. I've built real-time multiplayer with Photon and Unity Netcode, Firebase and AWS backends for auth and user data, and physics simulations most Unity devs never touch - rope, liquid, soft body, molecule interactions, procedural mesh generation from LiDAR scans.
I also take apps through the full store cycle: IAP setup, Google Play and Apple review, post-launch fixes.
On the engineering side, I profile early, fix memory leaks before they turn into crashes, and keep the app running smoothly on the low-end hardware your actual users have, not just your test device. Code is modular and documented, so your team can pick it up after I'm gone.
Tell me what stage you're at - MVP, mid-project, or final polish - and let's talk about what you're building.
Unity
Mobile App Development
Augmented Reality
Minimum Viable Product
Prototyping
AR Application
iOS
Android
ARKit
ARCore
AR Foundation
Lidar
Education
Architecture & Interior Design
C#
Virtual Reality
Online Multiplayer
Firebase
Photon Unity Networking
Mixed Reality
Aleksejs M.
Liepaja, Latvia
$35/hr
5.0
1 jobs
You don't need another developer who "works with ChatGPT."
You need someone who has actually shipped AI products to real users.
Hi — I'm Aleksejs, an EU-based engineer and tech entrepreneur. I build serious
digital products: AI agents, SaaS platforms, data systems, and immersive web apps.
When a project needs design — I have a dedicated design partner.
Engineering and design in one engagement.
Here's what I've actually built (not theory):
🤖 AI Agents & LLM Systems:
I built and run a production AI personal agent (ReAct loop, multi-model routing,
memory, tool use) and an AI-powered nutrition SaaS bot with real paying subscribers —
Stripe billing, Gemini Vision for food recognition, Firebase-backed PWA.
I integrate Claude, Gemini, OpenRouter, and custom orchestration layers.
Not API wrappers. Actual systems.
📊 Algo & Data Systems:
8+ iterations of trading bots on Binance Futures — rule-based to ML-powered
(CNN/ResNet on chart screenshots, XGBoost ensembles, LSTM). Anomaly detection
platform with 11 live sensors (seismic, quantum RNG, solar weather, crypto)
and real-time WebSocket dashboard. Production systems. Real money.
💻 Web & SaaS Development:
Full-cycle: Next.js, React, FastAPI, Supabase, PostgreSQL, MongoDB, Stripe.
PWAs, e-commerce, marketplace platforms, 3D/WebGL with Three.js + GSAP.
From architecture to deployment.
Why me?
✅ I ship. NutriAI, Matrix Watcher, and my AI agent are live right now.
✅ Full AI stack — prompt engineering to custom ML models (TensorFlow, PyTorch, scikit-learn).
✅ EU-based — clear English, transparent process, deadlines respected.
✅ Design covered when you need it. One engagement, no coordination overhead on your end.
Tell me what you're building.
Prompt Engineering
Large Language Model
ChatGPT
Claude
Gemini
Artificial Intelligence
Chatbot Development
API Integration
Web Development
AI Development
AI Model Training
Mareks A.
Riga, Latvia
$15/hr
4.8
6 jobs
Game development is something more than just a daily job, it's a passion.
Check my telegram, where every day I post a new game idea, t.me/gamesunity
Seven years of unity experience, working with Android, IOS, and WebGL.
I have acquired skills in all phases of game development including;
- C#,
- Graphics modeling and designing (2D/3D),
- Animation and VFX,
- Third-party SDK integrations, Firebase
- Different game genres (hyper-casual, puzzle, runner),
- Publishing on different platforms (iOS App Store, Google Play Store, Huawei App Gallery),
- Tools like Unity, Blender, ML agent, Android Studio, Xcode, Jira, Git.
I have created about 100 different replicas of simple games, from simple 2D platformers
to 3D projects with custom animation. I have experience in creating AI for games.
Have a game idea or need help with Unity, don't hesitate, to give me a shout. Let's shake the world.
My passion for gaming technologies has helped in launch games on various platforms on both web and mobile.
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