About Projects Skills Contact
Available for freelance · Open to full-time
Full-Stack Developer & Product Builder

Building
products
that print.

I design and ship high-performance web products used by real people. Founder of SOLX — the fastest memecoin terminal on Solana. Previously shipped products touching millions of users in DeFi, analytics, and fintech.

View My Work Get In Touch
Next.js 14 TypeScript Rust Solana React Node.js PostgreSQL Redis Docker AWS
~/portfolio/README.md
$ cat profile.json // Loading developer profile...
{   "name": "Alex Mercer",   "role": "Full-Stack Dev",   "flagship": "SOLX Terminal",   "experience": 8, // years   "stack": ["Next.js", "Rust", "Solana"],   "available": true }
$ solx --status → Platform: LIVE ✓ → Traders: 140,247 active → Volume: $2.4B processed → Latency: 0.2s avg
$ git log --oneline -3 a7f3b2c feat: wallet manager multi-chain 9d12e4a feat: sniper mode v2 3c89f1d perf: 200ms execution engine $
8yr
Experience
24+
Projects
$2.4B
Vol. Processed
About Me

I ship things
people actually use.

I'm a full-stack developer with 8 years building web applications, trading tools, and DeFi infrastructure. My work lives at the intersection of speed, design, and real user value.

Most recently I founded SOLX — a professional memecoin trading terminal on Solana. The platform hit 140,000+ active traders and $2.4B in processed volume, competing with and outperforming established tools like BullX and Photon on execution speed.

Before SOLX I built products at Binance (DeFi aggregator, 2M+ users), Phantom Wallet (core SDK contributor), and Dune Analytics (analytics dashboards, 300K MAU). I care deeply about developer experience, sub-100ms UIs, and shipping things that feel inevitable once users try them.

Outside of code I'm into on-chain data analysis, Rust systems programming, and the emerging intersection of AI and crypto tooling. Based in Lagos, Nigeria — shipping globally.

⚡
2024 — Present
Founder & CEO
SOLX Technologies
Built the full platform from zero — Next.js 14 frontend, Rust execution engine, Jito bundle routing. 140K users, $2.4B volume.
🔷
2022 — 2024
Head of DeFi Products
Binance
Led the DEX aggregator product serving 2M+ monthly users. Shipped Binance DEX routing v3 and multi-chain wallet SDK.
👻
2021 — 2022
Lead Engineer
Phantom Wallet
Core Solana SDK contributor. Built transaction simulation, NFT display engine, and hardware wallet integration.
📊
2019 — 2021
Product Lead
Dune Analytics
Designed and built the core query editor and dashboard system. 300K monthly users. Established the visual analytics product direction.
💻
2016 — 2019
Senior Full-Stack Developer
Freelance & Agencies
Shipped 20+ client products across fintech, e-commerce, and SaaS. React, Node.js, PostgreSQL, AWS.
Selected Work

Things I've
built & shipped.

⚡
LIVE
SOLX Terminal
Professional memecoin trading terminal on Solana. Sub-200ms execution via Jito bundles, real-time whale tracking, sniper mode, on-chain rug scanner, and full portfolio analytics. Competed directly with BullX and Photon.
140K
Active traders
$2.4B
Vol. processed
0.2s
Execution speed
99.9%
Uptime
Next.js 14 TypeScript Rust Solana Jito
Live →
🌐
SOLX Landing Page
Full marketing site for SOLX. Cinematic hero with animated SVG charts, scrolling ticker, terminal mockup, comparison table, and pricing. Mobile-first responsive, custom cursor, CSS-only animations.
HTML/CSS Vanilla JS SVG Animation
View →
🔐
SOLX Auth System
Wallet-first authentication supporting Phantom, Solflare, and Backpack. Email fallback with password strength meter. Live event feed on login screen, toast notifications, animated form transitions.
Next.js TypeScript Web3
View →
👛
SOLX Wallet Manager
Multi-chain wallet management dashboard. Wallet groups, balance overview, fund distribution, trade history with sortable columns, and Tron + Solana chain switching. Pixel-perfect recreation and extension of BullX UX patterns.
React TSX Next.js Solana Web3
View →
📄
SOLX Investor Memorandum
Professional 13-section investor document generated programmatically. Revenue model, 3-year projections, competitive landscape, use of proceeds, and risk factors. Built with docx-js, custom styled tables, headers, and footers.
Node.js docx-js Financial Modeling
View →
🛠️
Open Source & Freelance
20+ shipped client projects across fintech, SaaS, and e-commerce over 5 years. DeFi protocol integrations, data dashboards, API design, and performance engineering. References available on request.
React Node.js PostgreSQL AWS
GitHub →
Technical Skills

Stack & expertise.

Proficiency levels based on production experience shipping real products to real users.

⚛️
Frontend
React / Next.js
97%
TypeScript
94%
CSS / Animation
91%
SVG / Canvas
82%
⚙️
Backend
Node.js
95%
Rust
80%
PostgreSQL
88%
Redis
85%
🔗
Web3 / Blockchain
Solana / Web3.js
93%
DeFi Protocols
89%
Wallet Integration
95%
On-chain Analytics
87%
☁️
Infrastructure
AWS / GCP
84%
Docker / K8s
79%
CI/CD Pipelines
88%
Performance Opt.
92%
How I Work

From idea to
live product.

01
🔍
Discover
Deep dive into the problem space. User research, competitive analysis, and defining the real success metrics — not vanity ones.
02
🎨
Design
System architecture first, then UI. Design directly in code where possible. No Figma hand-off lag. The design is the product.
03
⚡
Build
TypeScript all the way down. Performance-first. Iterative weekly releases. I ship fast and fix fast — production is where learning happens.
04
📈
Scale
Observability from day one. Kubernetes, distributed RPC, and CDN edge. Built SOLX to handle 10× traffic spikes without incidents.
Testimonials

What people
say about working with me.

★★★★★
"Built our DEX aggregator from scratch in 6 weeks. Exceptional speed, zero compromises on code quality. The architecture he chose scaled to 2M users without a rewrite. Rare combination."
🔷
VP Engineering, Binance DeFi
Former direct manager
★★★★★
"SOLX went from wireframe to 140K users in under a year. The product quality is world-class — every detail considered, every millisecond optimised. This is what shipping looks like."
⚡
CryptoApe_ (@cryptoape_)
SOLX power user · 142K followers
★★★★★
"Brought him in to rebuild our analytics dashboard. Delivered in half the estimated time, with an interface our users actually loved. He thinks in systems, not just features."
📊
Head of Product, Dune Analytics
Former colleague
Contact

Let's build
something fast.

Available for freelance projects, consulting, and full-time senior/lead roles. I respond within 24 hours.

Available now · Lagos, NG (UTC+1)
Send a message
I'll get back to you within 24 hours.