CRAFTING
HIGH-FIDELITY
ENTERPRISE & AI SYSTEMS.
Software Engineer with 3+ years of experience engineering enterprise multi-tenant SaaS ERP platforms, fintech solutions (crypto wallets), and full-stack web applications.
Strong in React, Next.js, TypeScript, Node.js, and PostgreSQL (Prisma), with proven production delivery in schema-isolated multi-tenancy, double-entry accounting engines, and AI/LLM integrations. Currently engineering core architecture for ERP at XPONENT InfoSystem.
YEARS EXP
TENANTS SERVED
MODELS / TENANT
Schema-per-Tenant ERP, Double-Entry GL, Dynamic Pooling, Granular RBAC
Next.js 15, TypeScript, React Native, Redux Toolkit, Prisma, PostgreSQL
Viem, Ethers.js, ERC-4337, 0x Swap, Google Gemini, pgvector (RAG)
FEATURED PROJECTS & WORKS
Production enterprise ERP platforms, autonomous AI systems, and multi-chain Web3 wallets engineered with uncompromising performance and security.
ThinPay Wallet
thinpay-wallet.vercel.appMulti-Chain Web3 Wallet & AI Copilot
Architected a self-custody wallet supporting 4 EVM networks and Solana Devnet with client-side AES-256-GCM / PBKDF2 encryption for local BIP-39 mnemonic key storage and direct Viem transaction signing.
- •Architected a self-custody wallet supporting 4 EVM networks and Solana Devnet with client-side AES-256-GCM / PBKDF2 encryption for local BIP-39 mnemonic key storage and direct Viem transaction signing.
- •Integrated ERC-4337 Account Abstraction featuring biometric passkey authentication (WebAuthn), sponsored gasless transactions via paymasters, and multi-recipient batch transfers.
- •Integrated Google Gemini to deliver pre-flight transaction risk simulations and smart contract vulnerability audits, combined with 0x Protocol swap routing and 1-click ERC-20 token approval revocation.
LearnStratum
learnstratum.vercel.appAutonomous AI Curriculum Synthesis & Spaced Repetition
Engineered an autonomous LMS generating personalized modular curricula using Google Gemini with multi-tier LLM fallback, aggregating vetted lectures and technical documentation via YouTube and Tavily/Jina Reader APIs.
- •Engineered an autonomous LMS generating personalized modular curricula using Google Gemini with multi-tier LLM fallback, aggregating vetted lectures and technical documentation via YouTube and Tavily/Jina Reader APIs.
- •Implemented cognitive spaced repetition using the SuperMemo-2 (SM-2) algorithm (3D flip flashcards, streak tracking) and dense semantic vector search via Google text-embedding-004 and PostgreSQL pgvector.
- •Delivered full-stack capabilities including an in-lesson streaming AI tutor via Server-Sent Events (SSE), public course sharing/forking, verifiable cryptographic completion certificates, and SHA-256 LLM response caching.
Shalik
shalik-nine.vercel.appOn-Device Multimodal Farm Assistant & Edge AI for Bangladesh
Engineered a 100% offline, air-gapped on-device Android assistant running a quantized Gemma 3n SLM (W4A16 via LiteRT-LM) and an Int8 leaf disease vision classifier (38ms latency, 89.2% Top-1 accuracy) within a 2.14 GB phone RAM budget.
- •Engineered a 100% offline, air-gapped on-device Android assistant running a quantized Gemma 3n SLM (W4A16 via LiteRT-LM) and an Int8 leaf disease vision classifier (38ms latency, 89.2% Top-1 accuracy) within a 2.14 GB phone RAM budget.
- •Implemented sub-millisecond offline RAG (0.33ms SQLite FTS5 BM25 search) citing official agricultural research (DAE, BRRI, BARI), rule-based banned pesticide interceptors, and spoken Bengali voice/TTS interfaces for low-literacy farmers.
OikikBooks
oikikbooks.comCloud ERP & Double-Entry Accounting Engine for Businesses & Firms
A modern cloud accounting and ERP platform handling schema-per-tenant isolation, strict double-entry general ledger posting gates, automated bank reconciliation, multi-currency transactions with realized FX settlement, and 23+ real-time financial reports.
Prayogik
prayogik.comComplete Digital Marketing & Professional Skill Learning Platform
A high-impact EdTech learning platform providing live training cohorts, specialized career tracks, workshop enrollment, and Prime membership subscriptions for students and professionals across Bangladesh.
EXPERIENCE & EDUCATION
A timeline of engineering roles, software contributions, and computer science foundations.
Software Engineer
XPONENT InfoSystem (Pvt) Ltd
Architecting core multi-tenant enterprise ERP platforms, accounting engines, and HRMS infrastructure with schema-per-tenant PostgreSQL isolation.
- •Architected schema-per-tenant multi-tenancy for ERP on PostgreSQL and Prisma (150+ models/tenant), building dynamic connection pooling (tenantClientFactory) and Next.js 15 Edge Middleware subdomain routing with 2-layer auth guards.
- •Engineered strict double-entry General Ledger (GL) posting gates enforcing debit/credit balance validation, fiscal period locks, multi-currency transaction engine with automated realized FX gain/loss settlement, and raw SQL financial reporting.
- •Built automated HRMS payroll engine utilizing topological sorting to evaluate salary component dependencies without circular loops, integrating Hikvision biometric terminals via ISAPI (HTTP Digest Auth) and GPS geofenced mobile check-ins.
- •Implemented granular RBAC system (60+ permissions, custom roles, GRANT/DENY user overrides with strict precedence) and built automated multi-tenant migration runner (migrate-tenants.ts), safely deploying schema updates across 50+ tenant databases.
Software Development Engineer
Tale Wallet
Engineered multi-chain self-custody wallet infrastructure, advanced order execution mechanisms, and embeddable Web3 SDKs.
- •Built core multi-chain self-custody wallet features (asset balances, transaction history, portfolio tracking) supporting 1000+ active users.
- •Engineered advanced trading mechanisms including limit, stop-loss, and market orders, securely processing 5000+ trades/month with real-time price feeds.
- •Integrated 5+ blockchains (Ethereum, Polygon, BNB Chain, etc.) and multiple payment gateways, enabling frictionless token swaps and fiat-to-crypto on-ramping.
- •Implemented caching and optimized query pipelines with Redis, decreasing API load by 45% and improving wallet render latency by 60%.
- •Co-authored the Tale Wallet SDK, enabling external web apps to embed wallet connections in under 10 lines of code, adopted by 20+ partner sites.
B.Sc. in Computer Science & Engineering
Port City International University
Graduated with CGPA 3.38 / 4.00. Completed rigorous curriculum spanning Data Structures, Advanced Algorithms, Relational & Distributed Databases, Object-Oriented Software Engineering, and Operating Systems.
- •Comprehensive research and project development in scalable web architectures and relational database design
- •Rigorous problem solving in algorithmic complexity, data structures, and modern software engineering
- •Graduated with CGPA: 3.38 / 4.00
Complete Web Development
Programming Hero
Intensive full-stack web engineering program covering the modern JavaScript and TypeScript ecosystem. Achieved top 15% merit ranking across all cohort participants.
- •Built full-stack production projects utilizing MERN stack, Next.js, and Firebase Authentication
- •Ranked in the top 15% merit standing among course participants
TECHNICAL CAPABILITIES
A production-tested stack combining multi-tenant SaaS system design, full-stack React & Next.js engineering, Web3 smart contract protocols, and AI integrations.
SYSTEM DESIGN & ARCHITECTURE
FRONTEND & MOBILE
BACKEND & DATABASES
WEB3 & ARTIFICIAL INTELLIGENCE
TOOLS, TESTING & DEVOPS
ENGINEERING PHILOSOPHY
A profile of engineering architecture, core distributed proficiencies, and academic background.
Enterprise Multi-Tenancy, Web3 Protocols & AI
Software Engineer with 3+ years of experience engineering enterprise multi-tenant SaaS ERP platforms, fintech solutions (crypto wallets), and full-stack web applications. Strong in React, Next.js, TypeScript, Node.js, and PostgreSQL (Prisma), with proven production delivery in schema-isolated multi-tenancy, double-entry accounting engines, and AI/LLM integrations.
Currently engineering core architecture for ERP at XPONENT InfoSystem (Pvt) Ltd in Chattogram, Bangladesh. Architected schema-per-tenant multi-tenancy on PostgreSQL and Prisma (150+ models/tenant) with dynamic connection pooling, strict double-entry General Ledger (GL) posting gates, automated HRMS payroll with topological sorting, and granular RBAC across 50+ tenant databases.
Previously at Tale Wallet, engineered core multi-chain self-custody wallet features supporting 1000+ active users, advanced trading mechanisms (limit, stop-loss, market orders) processing 5000+ trades/month, Redis query pipelines reducing API load by 45%, and the embeddable Tale Wallet SDK adopted across 20+ partner platforms.
METADATA & CONTACT
syiedbinsalim@gmail.com
+880 1641-560254
Chattogram, Bangladesh
B.Sc. in CSE (CGPA: 3.38 / 4.00)
Port City International University (2019 – 2023)
Complete Web Development (Top 15%)
Programming Hero (2022)
LET'S ENGINEER THE NEXT
HIGH-IMPACT SYSTEM.
Whether you are architecting a multi-tenant enterprise ERP platform, a Web3 fintech wallet, or an autonomous AI application, my inbox is always open.