Swastik Mishra - Head of Engineering, Payments, Digital Assets & AI

Singapore github.com/swastikmishra · linkedin.com/in/swastikmishra60

About

Engineering leader and systems architect with 10+ years building zero-to-one ventures and scaling production infrastructure across FinTech, Digital Assets, and AI. Three-act career arc: 6 years owning payments infrastructure at scale at E-junkie (25K+ active merchants, 30 TPS across global processors); 2.5 years as a rapid MVP builder across Web3 and AI at Menyala and CB Labs; now synthesising both at Xweave, architecting stablecoin and fiat payment rails that handle $3M+ ticket sizes across SEA, UAE, and the Philippines. Proven ability to compress timelines, operate with lean teams, and accelerate engineering output 80%+ through AI-augmented workflows.

Experience

Head of Engineering - Xweave (Jul 2025 – Present)

Leading engineering for a stablecoin orchestration and fiat payments platform enabling cross-border money movement across SEA, UAE, and the Philippines.

• Architected a high-performance payment routing engine with smart caching, dynamic rail weighting, and automated validation, achieving 100% payment success rates on pilot launches across SWIFT, FAST, PayNow, BI-FAST, PesoNet, and InstaPay corridors.
• Scaled infrastructure to handle $3M+ individual ticket sizes; spearheading VAPT and ISO certification compliance with automated vulnerability management and data isolation protocols.
• Compressed partner integration timelines from 3 weeks to 1 week by deeply integrating AI coding agents (Claude Code, Codex) and refactoring the codebase to be agent-optimised.
• Orchestrated multi-agent workflows for non-technical teams using Claude Cowork, n8n, Notion MCP, and Google Connectors, achieving 80% automation across daily reporting, client communications, and meeting synthesis.
• Led full architecture migration from legacy RedwoodJS to a scalable Turborepo monorepo (Next.js, Fastify, tRPC, Temporal, Docker); executed core auth migration to Clerk within a 1-hour production window.
• Established end-to-end DevOps from scratch: Pulumi IaC, Datadog RUM & Analytics, secret scanning, static analysis, and proactive alerting.
• Scaled the engineering squad from 2 to 5+ engineers in 6 months; designed hiring roadmap, onboarding frameworks, and Payment Ops SOPs.

Stack: Node.js, Golang, TypeScript, Fastify, tRPC, Next.js, Turborepo, Temporal, Prisma, Postgres (Aurora), Pulumi, AWS (ECS, Fargate, Lambda), Datadog, Clerk.

Engineer (AI / Web3 / Full Stack) - Liminal (a.k.a. Menyala) (Jul 2023 – Jul 2025)

Embedded across four venture studio projects as the go-to engineer, taking each from concept to live MVP within weeks, across blockchain, AI, and full-stack domains.

Motif - Founding Engineer (6 months)

• Built the MVP for a conversational crypto assistant enabling users to buy, sell, and swap tokens via chat and voice, using Vercel AI, OpenAI, MastraAI, CrewAI, and ElevenLabs.
• Designed the crypto stack using Privy, Circle Wallets, Alchemy, and Lifi; used Pinecone for vector search and Postgres for conversations and orders.
• Developed a multichannel backend supporting Web App, Mobile Apps, and Telegram Bot.

Laguna - Lead Engineer (2 months)

• Architected core crypto infrastructure for Treasury Management, Order Management, value-based Order Baskets, and Withdrawal Flows.
• Integrated Coinbase and Lifi (DEX) to support fiat on-ramps and cross-chain swaps.

Blink Labs - Founding Engineer (6 months)

• Built a PoC enabling Web3 developers to generate smart contracts from natural language intents and deploy them to private devnets, testnets, or mainnet.
• Led architecture for automated Devnet deployments, including a UI and an internal devnet explorer.

Menyala Copilot - Full-Stack Engineer, Solo Contributor (6 months)

• Architected an internal AI application to accelerate venture validation and automated research pipelines across the studio portfolio.
• Designed a multi-agent architecture using LangGraph, enabling agents to execute sequentially or in parallel based on decision logic and internal state.

Senior Developer - CB Labs (Aug 2022 – Jan 2023)

Co-built and launched Hyperlaunch, a Solana-based NFT launchpad, in 2 weeks, powering 15+ successful collections, handling wallet architecture, Candy Machine deployment, whitelist mint mechanics, and bot protection.

Senior Developer - E-junkie (Jul 2016 – Jul 2022)

6 years owning engineering, DevOps, and vendor relationships across a globally distributed team (US, UK, India, Australia) for a high-scale digital commerce platform.

• Integrated and maintained 10+ global payment processors: Stripe, PayPal, Square, Adyen, Coinbase, Razorpay, Braintree, 2Checkout, Auth.Net, Paytm, including full 3DS and GDPR compliance.
• Maintained and scaled a platform serving 25K+ active merchants at 30 TPS across global payment processors, managing DDoS incidents, AWS outages, and Black Friday peak traffic.
• Led the monolith-to-microservices migration and transition from an in-house framework to Laravel-based APIs.
• Implemented ML-powered product intelligence using Google Cloud NLP for NSFW detection, auto-categorisation, sentiment analysis, and predictive upsell signals at scale.
• Managed AWS infrastructure migration from colo servers, establishing IaC patterns and cloud-native architecture for global scale.

Core Expertise

• Payments & Fintech: Global payment rails (SWIFT, FAST, PayNow, BI-FAST, PesoNet, InstaPay), stablecoin infrastructure, payment processor integrations (Stripe, PayPal, Adyen, Razorpay, Coinbase), 3DS & GDPR compliance.
• AI & Agentic Systems: Multi-agent architectures (LangGraph, CrewAI, MastraAI), RAG pipelines, vector databases (Pinecone, PGVector), multi-modal voice/text, Claude, OpenAI, AI-augmented developer workflows.
• Backend & Infrastructure: Node.js, TypeScript, Golang, Fastify, tRPC, GraphQL, Temporal, Prisma, Postgres, Docker, AWS (ECS, Fargate, Lambda), Pulumi IaC, Datadog.
• Web3 & Blockchain: Solana, Ethereum, Privy, Alchemy, Lifi, Coinbase Prime, Circle Wallet, smart contract deployment.
• Leadership: 0 → 1 product engineering, lean team acceleration, engineering hiring, DevOps from scratch, cross-functional alignment, compliance frameworks (ISO 27001, PCI DSS).

Publications

A Controller-Orchestrated Architecture for Scalable MQTT Messaging: Design and Evaluation Using Mosquitto. A controller-orchestrated architecture extends Mosquitto MQTT brokers with plugin-based vertical and horizontal scaling, coordinated via a lightweight Valkey shared-state layer. SLA-driven control logic governs dynamic broker provisioning without client reconnection. Published in IEEE Access, Volume 14, 23 April 2026. ISSN 2169-3536. DOI: 10.1109/ACCESS.2026.3686909.

Open Source

E-junkie CMS (Jan 2020 – Present, GitHub): a simple, flexible, file-based CMS for small websites, supporting the E-junkie ecommerce engine out of the box with markdown + HTML, themes, templates, pages, and ecommerce pages.

Education

Undergraduate Studies in Computer Science (coursework completed through final semester), Ravenshaw University, Odisha, IN, 2013 – 2016.

Languages

English, Hindi, Odia.