Senior Full-Stack Engineer • Blockchain Architect • AI Product Builder
Senior Software Engineer at IX Coach • Co-Founder & CTO at NexusLab • Founder at Kwik Commerz

I build products that need both speed and technical depth — especially AI SaaS, fintech/payment systems, blockchain apps, Telegram Mini Apps, and cross-platform mobile/web products.

Over the last 11+ years, I’ve worked across product strategy, system architecture, backend engineering, frontend apps, smart contracts, DevOps, and production delivery. I’m strongest in projects where the product is ambitious, the timeline is real, and the system has to actually hold up after launch.

If you need someone who can take a product from idea → architecture → build → launch → scale, we should talk.

• AI SaaS platforms, internal copilots, and workflow automation
• Multi-LLM systems using OpenAI, Anthropic, LangChain, and vector databases
• AI-assisted content pipelines, social media automation, and approval workflows
• Real product AI: auth, billing, analytics, onboarding, retry logic, observability

• Wallets, staking systems, token sales, vesting, launchpads, swaps, and on-chain dashboards
• EVM products using Solidity, ethers.js, wagmi/viem, and multi-chain integrations
• DeFi products on Ethereum, BSC, Base, TRON, and Solana
• Telegram Mini Apps for wallets, tap-to-earn, token tools, and Web3 growth loops

• Crypto payment gateways, internal ledgers, merchant systems, and payout flows
• Integrations with Stripe, bKash, Nagad, Rocket, BBPS/BharatPays, and card products
• Webhook-heavy systems with reconciliation, retry handling, and admin tooling

• SaaS dashboards, multi-tenant platforms, admin panels, marketplaces, and custom portals
• React, Next.js, Node.js, Express, NestJS, Laravel, MongoDB, PostgreSQL
• React Native, Expo, Flutter, and mobile-first product delivery

Role: Senior Software Engineer
Worked across the broader Next AI Labs ecosystem covering backend, web, mobile, onboarding, and internal tooling.

• Built features in the core API using Node.js/Express, MongoDB, Redis, and Pinecone
• Integrated OpenAI, Anthropic, LangChain, Stripe, Firebase, Twilio, SendGrid, and HubSpot
• Contributed to the React Native mobile app, Next.js landing/onboarding flows, and AI-related internal systems
• Worked on real production concerns: payments, queue-based jobs, messaging, experiments, and growth tooling

Role: Co-Founder & CTO
Led architecture and delivery across a broad portfolio of blockchain and fintech products.

Project types include:

• Token sale, vesting, staking, dashboard, and Telegram-based Web3 products
• Gaming and rewards-based Web3 platforms
• Multi-chain betting and payment systems
• Solana-based reward and wellness products
• DeFi staking, referral, and wallet platforms
• Custom blockchain node and infrastructure work in Go, gRPC, and libp2p

Worked on crypto-first payments, wallets, merchant infrastructure, and related financial products.

• Crypto financial platforms covering wallets, payouts, cards, admin systems, and utility-payment flows
• Custodial crypto payment gateways with merchant dashboards, reconciliation, and ledger-style transaction handling
• Self-custody wallet products supporting multi-chain use cases and swap integrations

Built and led products across SaaS, AI, ecommerce, and media-driven platforms.

Highlights include:

• QDesk — AI-powered support/ticketing SaaS
• Synth-Shop — multi-tenant ecommerce SaaS using Laravel + Next.js
• Celebwo — booking/interaction platform with real-time and video integrations
• AI-powered creator and reward platforms — image generation, monetization flows, tokenized/reward-based mechanics, and referral/agent systems
• Shortzz — short-video social platform
• Nobo Rong — ecommerce web + mobile product

I also build systems that reduce manual work and make products easier to operate.

• News crawling + AI rewriting + scheduled publishing
• Social media automation and posting workflows
• Browser automation for payment/merchant systems
• Internal dashboards, admin workflows, and operational tooling

Frontend: React, Next.js, Tailwind CSS, Redux, Zustand, Framer Motion
Mobile: React Native, Expo, Flutter, SwiftUI, Telegram Mini Apps
Backend: Node.js, Express.js, NestJS, Laravel, Bun
Databases: MongoDB, PostgreSQL, MySQL, Redis, SQLite, Supabase, Pinecone
AI: OpenAI, Anthropic, LangChain, Google Gemini, Vercel AI SDK
Blockchain: Solidity, ethers.js, Web3.js, wagmi/viem, Bitcoinjs, Solana Web3.js
Infra: Docker, Kubernetes, AWS, DigitalOcean, Nginx, CI/CD

• I care more about shipping useful systems than building impressive demos
• I’m comfortable owning both architecture and implementation
• I can work inside messy, fast-moving startup environments without losing code quality
• I’m strong at difficult integration work: payments, wallets, webhooks, auth, queues, real-time events, bots, and ops tooling
• I build with long-term maintainability in mind, not just first-release speed

I’m open to:

• Contract / freelance product development
• Fractional CTO / technical lead roles
• MVP to production builds
• AI + SaaS + Web3 product engineering
• Architecture reviews and rescue work for products that need a stronger technical foundation

If you’re hiring, building, or need a technical partner who can actually execute, feel free to reach out.

• LinkedIn: linkedin.com/in/profrasel
• GitHub: github.com/rasel-gen
• Email: [email protected]
• Alt Email: [email protected]

Send me a short brief about your product, stage, and timeline — I’m happy to discuss whether I’m a good fit.