Blockchain, Security, and Full-Stack Builds — Not Templates
CrewLogic Labs' second service line: custom smart contracts, security audits, and production full-stack systems, scoped and quoted directly. The team and the real, shipped proof behind it are below.
One Engineer, Five AI Specialisms
These aren't staff — they're the AI tooling I set up for each kind of work, so implementation moves fast. Every architecture decision, review, and release is made by me, Muhammad Ansar.
COMPASS-AI
Lead AI & Systems Automation Engineer
AI / LLM Workflows & RAG Systems
- Multi-step LLM workflow orchestration
- Custom chatbots
- Automated data pipelines
- Async API backends
SOLIS-33
Lead Smart Contract & Web3 Engineer
Blockchain & Decentralized Systems
- Tamper-proof smart contract architecture
- On-chain asset verification
- dApp integration
- Security immutability
STACK-CORE
Lead Full-Stack Web Architect
Enterprise Full-Stack Web Architecture
- Server Components
- REST / GraphQL microservices
- Schema optimization
- Production CI/CD pipelines
PIXEL-UX
Lead Product & UI/UX Designer
UI/UX & Design Systems
- Converting engineering specs into modern UI
- Interactive, accessible interfaces
- Glassmorphic component libraries
- Design token systems
SENTINEL-SEC
Lead QA & Security Audit Engineer
Security Auditing & Code Verification
- Automated unit / integration test suites
- Smart contract vulnerability scans
- Secret key leak protection
- Vulnerability scanning before every release
Custom Engineering We've Shipped
Real blockchain, security, and full-stack delivery — the proof behind the Custom Engineering packages.
See all case studiesNo Black Box Between Scope Call and Delivery
Custom Engineering projects run for weeks, not minutes — here's the actual cadence, not just a delivery date.
Scope Call & Architecture
A real scope call, then a written technical plan — exact deliverables, exact timeline, locked before any code gets written. No guessing what you're paying for.
A Real Progress Update
What shipped, what's next, and anything blocking it — sent every week the project runs. Not a black box you check in on at the end and hope for the best.
Test, Handoff & Docs
Full test suite run and passing, deployed, documented, and one revision round included — so you're not on your own the moment it ships.
The Difference Between a Freelancer and an Agency Layer
No account managers, no junior devs learning on your project — just the engineer who shipped the case studies above.
No Agency Layer
You work directly with Muhammad Ansar, the person designing the system and making every architecture call — not a project manager relaying between you and an engineer you'll never talk to.
Verified, Not Just Delivered
Real automated test suites and self-audit passes before anything ships — the same process behind Chain Escrow's 34 tests and 3 audit passes, not a demo that only survives the happy path.
Scoped Honestly
Every engagement starts with a real scope call before a real quote — starting prices are a floor, not a bait-and-switch number that grows once you're committed.
Human-in-the-Loop, By Design
The "70/30 Engineering Rule": AI agents accelerate implementation, but architecture decisions, security review, and final QA stay with a human — always.
Need Something Custom Built?
Smart contracts, pre-audit security reviews, and full-stack builds — scoped and quoted directly, not sold off a shelf. Indicative starting prices below; every project gets a real quote after a scope call.
Smart Contract Development
A production-grade contract, not a copy-pasted template.
Custom Solidity systems — escrow, token issuance, on-chain verification, or your own contract logic — built on OpenZeppelin's audited primitives with a real automated test suite, the same process proven on Chain Escrow (34 tests, 3 self-audit passes, live on Sepolia).
- Full Hardhat test suite, not just a happy-path demo
- Built on OpenZeppelin's audited primitives wherever funds or access control are involved
- Deployed and source-verified on a public testnet before mainnet
Starting scope: a single-contract system with a full test suite. Multi-contract protocols and DeFi systems scope higher — quoted after a scope call.
Pre-Audit Security Review
Real static analysis plus AI-assisted triage — every finding traced to its source.
The same two-layer process behind the Contract Auditor tool: Slither's real detectors run against your compiled contract, then each finding is triaged and explained — confirmed, dismissed, or flagged as a genuine best-practice gap — with a written report.
- Full Slither static-analysis pass plus manual review of access control and fund-moving paths
- Written report — every finding labeled Critical/High/Medium/Low, traced to its real source
- One re-check pass included after you fix what's found
Starting scope: a single contract under ~300 lines. Multi-contract protocols and upgradeable proxies scope higher — quoted after reviewing your repo. A pre-audit review catches issues early and cheaply; it isn't a substitute for a full third-party audit before mainnet with significant funds at stake.
Custom Full-Stack Build
A real production system, not a static site with a form bolted on.
Next.js/TypeScript builds with the same patterns behind Framekit's metered billing (real Stripe webhooks, hashed API keys, live usage quotas) and PulseQueue's durable backend work — for a SaaS MVP, an internal ops tool, or a custom system off-the-shelf software doesn't cover.
- Server-rendered Next.js App Router, not a client-side SPA bolted onto an API
- Real integrations wired to signature-verified webhooks — not stubbed
- Deployed on Vercel with CI on every push
Starting scope: a single core flow (one dashboard, one billing integration, one data pipeline). Multi-role platforms scope higher — quoted after a scope call.