Arindam BajpayeeArindam Bajpayee
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Arindam Bajpayee

Arindam Bajpayee

Head of Engineering · CTO · Technical Leader

Building high-performance engineering teams and AI-powered systems that scale.

Get in touchLinkedInZurich, Switzerland
20+
Years in engineering
0→50+
Engineers scaled & led
5×
Top100 Swiss Startup
Focus
AI-Driven DevelopmentBlockchainCloud ArchitectureTeam Scaling
About

Translating vision into technical execution

An accomplished Head of Engineering and AI-Driven Technologist with 20+ years of experience in building, leading high-performance engineering teams and scalable AI-powered systems across startups and global enterprises. Proven ability to translate strategic vision into deep technical execution, designing robust architectures, and accelerating development through AI-powered workflows and modern DevOps practices. Successfully launched multi-chain blockchain platforms and delivered significant business impact through intelligent automation and a culture of speed, quality, and innovation.

Languages
EnglishGerman (basic)HindiBengali
Core Leadership Areas
Engineering Strategy & Technical Vision
AI-Driven Development Acceleration
Product & Engineering Alignment
Org Design & Team Scaling (0 → 50+ engineers)
Architecture & System Design (Cloud, Blockchain, Data)
DevOps / CI-CD Governance / Quality Assurance
Stakeholder Management & Executive Communication
Security, Compliance & Reliability Engineering
Experience

Where I've made an impact

SVP, Head of Engineering

21Shares
2022 → 2026
Zurich, Switzerland
  • Lead engineering organization across multiple initiatives for a global crypto investment and infrastructure company
  • Defined the long-term technical direction aligning with business objectives
  • Established technical foundation and architectural standards for scalable, maintainable systems
  • Delivered 5-6 major projects/initiatives in 3 years contributing significantly to business success
  • Integrated AI (Claude) into engineering workflow for automated testing, code reviews, and documentation
  • Scaled multi-chain infrastructure (Ethereum, Solana, Avalanche) with AWS & Cloudflare Zero-Trust security
  • Mentored Tech Leads and built a functioning, distributed EU/US engineering team
  • Drove operations & governance through OKRs, KPIs, and standardized engineering practices
  • Owned security, compliance, and reliability engineering across all products
  • Collaborated cross-functionally with product, design, marketing, and executive teams to align engineering as a strategic business enabler
Key Projects

BlockSensAI

AI-driven governance and corporate-actions platform using RAG architecture (Qdrant, embeddings)

  • ·Architected and built the backend APIs, database schemas
  • ·Contributed significantly on the frontend to bring the application to production ahead of schedule

BTCY

Bitcoin yield application allowing users to put idle bitcoins to work with different trading strategies

  • ·Architected end-to-end solution including user application and trading backoffice

Tokens (21BTC)

Bitcoin wrapper tokens on Ethereum and Solana chains

  • ·Built 21BTC on Solana token using Token Standards
  • ·Built CLI tool and API for issuance/management reducing operational time from hours to minutes
  • ·Integrated with Copper (Custodian), Fireblocks, Quicknode, and Tatum

Onyx

In-house asset-management platform for building and managing crypto ETFs

  • ·Rebuilt Onyx (v2) from ground up with modern, scalable backend architecture
Node.jsNestJSReactAngularMongoDBPostgreSQLAWSKubernetesEthereumSolanaFireblocksAI/RAG

Co-Founder & CTO

Sonect
2017 → 2022
Zurich, Switzerland
  • Co-founded and led engineering for fintech startup building world's first virtual ATM network
  • Built end-to-end platform with Angular, Node.js, MongoDB, and RESTful APIs
  • Designed infrastructure for bank and payment partner integrations
  • Architected fully functional backoffice for partners, payments, user management and support
  • Scaled development and testing processes with CI/CD and agile methodologies
  • Integrated with Twint (leading Swiss payments platform) reaching millions of users
  • Managed offshore development teams and mobile QA for iOS/Android apps
Key Projects

Partner Integrations

Built APIs for external partners (Valora, Landi, Volg) to integrate Sonect into POS terminals

SDKs

User and Merchant SDKs integrated by BNP Paribas (Italy), Zurich Kantonal Bank, and Axepta (BNP Paribas) POS systems

Top100 Swiss Startups (2018-2022)

20222021 (#100)2020 (#95)2019 (#76)2018 (#75)

Awards & Recognition

Digital Economy Award 2019Venture Kick Support
AngularNode.jsMongoDBRESTful APIsCI/CDiOSAndroid

Technical Lead

Wipro Technologies
2015 → 2017
Zurich, Switzerland
  • Led development for Credit Suisse's transaction reporting systems (CCTR)
  • Delivered AngularJS, REST, and Spring Batch solutions replacing legacy applications
  • Managed onshore/offshore coordination and architecture reviews
AngularJSRESTSpring BatchJava

Senior Software Engineer

Accenture
2006 → 2013
Zurich, Switzerland
  • Engineered multiple enterprise banking systems for Credit Suisse (CARAT, NPMS)
  • Specialized in Java Server Faces (JSF) architecture, Oracle databases, compliance, and risk-monitoring
  • Collaborated with business analysts and offshore teams delivering high-quality code under agile frameworks
  • Built various proof-of-concepts integrated into production applications
JSFJavaOracleSpring
Stack

Technical skills

Backend

Node.js (NestJS / Fastify / Express)Java (Spring / JEE)

Frontend

ReactAngularMUITailwind

Cloud & Infrastructure

AWSGoogle Cloud (GCP)KubernetesPulumiGitHub Actions

Blockchain

EthereumSolanaFireblocks SDKQuickNode

AI / Data

OpenAIClaudeVector DBRAGLLM OpsMCP

Databases

MongoDBPostgreSQLOracleQdrant

Leadership & Delivery

People ManagementMentoringOKRs & KPIsAgile / ScrumHiring & Team Building

Tooling

DockerCloudflareNotionLinearPusherAtlassiann8n
Education

Foundations

Bachelor of Engineering (B.E.) – Computer Science & Engineering

Sri Siddhartha Institute of Technology
Visveshwaraiah Technological University
2002 – 2006
Karnataka, India
Contact

Let's talk

Always glad to talk engineering leadership, AI, and building teams that ship.

Available on LinkedIn profile and upon request

Email
arindam@bajpayee.me
LinkedIn
linkedin.com/in/bajpayee