Staff Software Engineer (Backend) (Onsite- Bangalore)

Experience 7.00 + years Salary Confidential (based on experience) Expected Notice Period 30 Days Shift (GMT+05:30) Asia/Kolkata (IST) Opportunity Type Office () Placement Type Full Time Permanent position(Payroll and Compliance to be managed by: A fintech platform that enables businesses)

**(*Note: This is a requirement for one of Uplers’ client - A fintech platform that enables businesses)

**What do you need for this opportunity?

Must have skills required: AWS SQS, Bitcoin, Ethereum, EVM-compatible chains, Solana, Kafka, Java, Spring Boot, Spring, PostgreSQL, MongoDB, Distributed Systems, Microservices, Event Driven, Event-driven, AWS, Cloud, Crypto, Wallet, Digital wallet, Custody, Cryptocurrency, Blockchain, web3, Digital Assets, Fintech, Payments, concurrency, Idempotency, Transactional integrity, financial transactions, Ledger

A fintech platform that enables businesses is Looking for: Staff Software Engineer (Backend) Fintech Wallet | Fiat + Crypto | Early-Stage Startup** **Location: Bengaluru - WFO

Team Size: ~15 people

Employment: Full-time | Leadership

About BP BP is an early-stage fintech startup building a crypto wallet platform targeting consumers across the US and LATAM. We’‘re building secure, scalable, and compliant infrastructure to power digital wallets, payments, and crypto on/off-ramps for high net worth individuals.

We’‘re building the platform from the ground up, which means you’‘ll have significant ownership and the opportunity to directly influence our technology, architecture, and engineering culture.

Role Overview We’‘re looking for a Staff Software Engineer (Backend) to take technical ownership of critical backend systems powering our crypto wallet, transaction, payment, and financial infrastructure.

This is a hands-on technical leadership role . You’‘ll design and build highly reliable backend systems while driving architecture, scalability, security, and engineering best practices across the platform.

You’‘ll work on complex problems involving financial transactions, blockchain integrations, wallet infrastructure, distributed systems, and third-party fintech providers .

The ideal candidate is someone who can operate at both the architecture and implementation level , someone who can design a system, make the right technical trade-offs, guide other engineers, and still dive deep into the code when required.

What You’‘ll Do

• Own the architecture and technical direction of critical backend systems across wallet, ledger, transaction, payment, and crypto infrastructure
• Design, develop, and scale backend microservices using Java and Spring Boot
• Design and build highly reliable systems handling financial and blockchain transactions
• Design and implement integrations with blockchain networks, crypto infrastructure providers, custody platforms, payment providers, and fintech services
• Work on core wallet functionality including wallet creation, deposits, withdrawals, transaction processing, blockchain confirmations, and balance management
• Design systems around transactional integrity, idempotency, concurrency, consistency, and fault tolerance
• Build and maintain RESTful APIs and event-driven services
• Design asynchronous workflows for transaction processing and external provider integrations
• Build and optimize data models and queries across PostgreSQL and MongoDB
• Design systems capable of scaling reliably as transaction volume and user activity grow
• Deploy, monitor, troubleshoot, and scale production services on AWS
• Drive improvements in system performance, reliability, availability, observability, and operational efficiency
• Participate in and lead system design and architecture reviews
• Make architectural decisions and clearly communicate technical trade-offs
• Establish and promote engineering best practices around code quality, testing, security, observability, CI/CD, and production readiness
• Review code and provide technical guidance to backend engineers
• Mentor engineers and help raise the team’’s technical capabilities
• Identify technical risks, scalability bottlenecks, and architectural gaps and proactively address them
• Debug and resolve complex production issues involving distributed systems, performance, financial transactions, and data integrity
• Work closely …