Job Description

About Bitfia

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Bitfia is building the next generation of global payment infrastructure using blockchain, stablecoins, AI and contemporary payment technologies.

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Our flagship platform, iPint, is designed to enable faster, smarter and more efficient global payments for businesses. We are also building advanced stablecoin payment rails, payment orchestration and cross-border payment infrastructure.

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We are looking for Engineers who are exceptional hands-on builders—those who can take a business or product requirement, think through the architecture, and rapidly turn it into production-ready software.

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These senior experienced developers can design, develop, and scale high-performance web applications and blockchain-based payment solutions. The ideal candidates will lead technical architecture decisions, and ensure secure, scalable, and reliable systems.

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These developers will work closely with product, security, and business teams to deliver mission-critical applications handling financial transactions and blockchain integrations.

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The Role

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As a Senior Software Engineer, you will primarily own backend engineering, APIs, payment infrastructure and core platform services, while also contributing to frontend development.

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- Design and build scalable backend services, APIs and payment infrastructure with a focus on performance, security and reliability.
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- Develop end-to-end payment flows including transaction processing, settlement, reconciliation and integrations with third-party providers.
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- Build integrations with blockchain networks, wallets, exchanges and third-party providers.
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- Contribute across the full stack, including develop modern web applications and frontend components when required using React, Angular, Vue or similar technologies.
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- Use AI-native development tools such as Cursor, Claude Code, Copilot and ChatGPT to accelerate coding, debugging, testing and delivery.
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- Own features end-to-end—from requirements and architecture through development, testing, deployment and production support.
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- Solve complex technical problems with a high degree of independence.
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- Help establish engineering practices that allow Bitfia to build and ship faster.
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- Work closely with founders and the engineering team on architecture, code quality, security and solving complex problems to continuously increase development velocity.
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Technical Skills

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- Use AI tools/agents to automate, develop, build and productionize the code, you are free to use AI, but code ownership, which includes code correctness and production stability lies with you.
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- Good understanding of how llm works for retraining and RAG, tool chains similar to langchain etc.
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- Lead the end-to-end architecture of web and blockchain-based systems.
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- Make informed decisions on technology stack, design patterns, and frameworks.
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- Review code, enforce best practices, and maintain high engineering standards.
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Web Application Development

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- Design and build scalable, secure, high-availability web applications.
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- Work with modern frontend and backend frameworks.
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- Optimize applications for performance, reliability, and maintainability.
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- Implement RESTful APIs and/or GraphQL services.
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Blockchain & Payment Systems

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- Design and integrate blockchain-based payment rails.
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- Work with smart contracts, wallets, and transaction processing systems.
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- Handle on-chain and off-chain interactions.
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- Ensure security of transactions, private keys, and sensitive data.
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- Integrate with third-party payment providers and blockchain networks.
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Security & Compliance

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- Implement security best practices for financial and blockchain systems.
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- Conduct threat modeling and code-level security reviews.
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- Ensure compliance with relevant standards (e.g., PCI-DSS, data protection laws).
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- Manage encryption, authentication, and authorization mechanisms.
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Collaboration & Delivery

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- Collaborate with product managers and founders to translate business requirements into technical solutions.
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- Ensure timely delivery of features with high quality.
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- Participate in sprint planning, estimations, and technical discussions.
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Required Skills & Qualifications

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Core Experience

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- 3+ years of professional software development experience.
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- Strong experience in web application development, and capability to learn new domains and lead entire products.
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- Hands-on experience with blockchain technologies and payment systems.
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Technical Skills

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- AI: Building agents using a mixture of experts, understanding of re-training AIs for specific domains, RAG and GraphRags, training your own SLM's.
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- Backend: Python, golang, nodejs or similar
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- Frontend: React, Angular, or Vue.js
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- Databases: PostgreSQL, MySQL, MongoDB, Redis
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- APIs: REST, GraphQL
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- Cloud: AWS, GCP, or Azure
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- DevOps: Docker, Kubernetes, CI/CD pipelines
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Blockchain & Payments

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- Experience with Ethereum / EVM-compatible chains, or similar.
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- Smart contracts (Solidity or equivalent).
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- Wallet integrations and transaction lifecycle.
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- Understanding of gas fees, confirmations, and blockchain security.
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- Payment flows, settlements, and reconciliation.
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Soft Skills

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- Strong problem-solving and decision-making abilities.
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- Excellent communication and stakeholder management skills.
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- Ability to balance hands-on coding with leadership.
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- Ownership mindset and attention to detail.
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Why Join Bitfia?

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- Work on real-world global payment infrastructure.
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- Build products involving AI, blockchain and stablecoins.
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- Work directly with founders and a highly entrepreneurial team.
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- High ownership and autonomy.
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- Opportunity to work across backend, frontend, blockchain and payment infrastructure.
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- Rapid learning and career growth.
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- Competitive compensation.
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- ESOP opportunities.
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- Opportunity to help build technology that can operate across global markets.
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- Learning and growth opportunities.
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Experience: 4–8 Years

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Employment: Full-time; Delhi NCR

📌 Technical Lead & Sr Developers Web And Blockchain Applications (New Delhi)
🏢 Bitfia Technologies
📍 New Delhi