Senior Lead Software Engineer- Back End- Madrid- Digital Assets
JPMorgan Chase10 days ago
Responsibilities
- Build and maintain secure, stable, and scalable integrations with digital-asset providers and infrastructure, including on-ramp and off-ramp capabilities.
- Develop and deliver backend product features with the Product team using the Agile software development lifecycle.
- Design and evolve microservices and event-driven architectures for real-time market data and trade events.
- Partner with Compliance, Risk, and Operations to satisfy regulatory, security, transaction-monitoring, wallet-screening, and key-management controls.
- Own work from estimation through release and post-production, including defect resolution, code reviews, testing, monitoring, and releases.
- Develop deterministic, well-tested, and auditable code for balances, order flow, settlement, and asset movement.
- Drive adoption and governance of approved AI-assisted engineering and automation practices across teams and the SDLC/TLM toolchain.
- Contribute to technical initiatives, architecture decisions, knowledge sharing, and continuous improvement.
Requirements
- English working proficiency is required for collaboration with the London team.
- Hands-on experience with exchange, brokerage, custody, wallet, or settlement systems for digital assets.
- Solid understanding of blockchains, wallets, public and private keys, signing, transactions, fees, tokens, and custodial versus non-custodial models.
- Experience with smart contracts or on-chain data, including technologies such as Solidity, web3 libraries, Infura, Alchemy, or self-operated nodes.
- Familiarity with Bitcoin, Ethereum, EVM-compatible chains, Layer 2 networks, transaction construction and broadcasting, confirmation and reorganization monitoring, and on-chain/off-chain reconciliation.
- Awareness of digital-asset regulatory and compliance topics including AML/KYC, travel rules, and market-abuse considerations.
- Professional experience with a JVM language such as Java, Scala, or Kotlin and Spring Boot.
- Experience designing systems from scratch and evolving existing serverless and managed cloud architectures.
- Hands-on experience with event-driven architectures and message brokers including Kafka, ideally for high-throughput and low-latency market or trade feeds.
- Experience integrating third-party financial or trading APIs using REST, WebSocket, or FIX, including rate limits, authentication, signing, reconnection, and idempotency.
- Experience with production monitoring and alerting, REST APIs, and Git flow.
- Strong product-engineering, communication, collaboration, problem-solving, and knowledge-sharing abilities.
- Preferred experience with order books, order types, matching, market and limit orders, settlement lifecycles, DynamoDB, Aurora, fintech, trading, digital assets, multi-country products, localization, and multiple currencies.
- A GitHub, Stack Overflow, application, or crypto/blockchain project portfolio is a bonus.
Benefits
- The role is part of J.P. Morgan Personal Investing’s engineering organization, working with teams in London and across Product, Operations, Compliance, and Risk.
- Employees can participate in engineering skill-share sessions, technical initiatives, and continuous learning opportunities.
- The employer describes an equal-opportunity workplace with reasonable accommodations for religious practices, mental health, and physical or disability needs.
Tech Stack
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About JPMorgan Chase
With a history tracing its roots to 1799 in New York City, JPMorganChase is one of the world's oldest, largest, and best-known financial institutions—carrying forth the innovative spirit of our heritage firms in global operations across 100 markets. We serve millions of customers and many of the world’s most prominent corporate, institutional, and government clients daily, managing assets and investments, offering business advice and strategies, and providing innovative banking solutions and services. Social Media Terms and Conditions: https://bit.ly/JPMCSocialTerms JPMorgan Chase & Co. is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.