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Blockchain.com

Crypto trading, wallets, and institutional API

Technical Lead - Lending & Savings

Engineering LeadershipConfirmed live in the last 24 hours
Full-timeLondon, UK

About the Job

Requirements

  • Strong experience building backend systems using Kotlin or Java.
  • Experience designing distributed, event-driven systems using Kafka or similar messaging technologies.
  • Strong knowledge of PostgreSQL and relational database design.
  • Experience working with Redis or other NoSQL technologies.
  • Deep understanding of microservices architecture, APIs, distributed systems, and cloud-native applications.
  • Experience with monitoring, observability, incident response, and production operations.
  • Strong debugging and performance optimisation skills.
  • Demonstrated experience shipping reliable production systems that process financial transactions.
  • Experience leading engineering teams while remaining hands-on.
  • Strong system design and architectural decision-making skills.
  • Experience owning technical delivery from planning through production.
  • Comfort working with cross-functional stakeholders to translate product requirements into engineering solutions.

Responsibilities

  • Lead the technical direction and architecture of the Lending & Savings platform.
  • Design and build scalable, secure, and highly available distributed systems.
  • Make architectural decisions that balance scalability, performance, security, and maintainability.
  • Contribute production-quality code and review critical changes while remaining hands-on.
  • Drive engineering best practices across system design, testing, deployment, observability, and operational excellence.
  • Mentor engineers through code reviews, technical coaching, and day-to-day leadership.
  • Own delivery of technical initiatives from design through production.
  • Work with the Business Lead and designers to translate product requirements into technical solutions.
  • Break down complex initiatives into engineering milestones and execution plans.
  • Identify technical risks early and propose pragmatic solutions.
  • Ensure services remain resilient, performant, and secure as the platform scales.
  • Partner with the Lending & Savings Business Lead to understand customer problems and product priorities.
  • Provide technical input into product planning, balancing customer value, engineering complexity, and delivery timelines.
  • Collaborate with Product Design, Treasury, Trading, Risk, Compliance, and Infrastructure teams to build customer-focused solutions.
  • Improve user journeys, performance, and platform reliability through continuous iteration.
  • Lead, mentor, and grow a small team of engineers.
  • Foster a culture of ownership, collaboration, and technical excellence.
  • Help recruit engineering talent.
  • Raise engineering standards across code quality, documentation, testing, and operational maturity.
  • Improve engineering productivity through automation and modern development practices.
  • Drive adoption of AI-assisted engineering tools where they improve developer efficiency while maintaining quality and security.
  • Champion continuous improvement across architecture, tooling, and engineering processes.

Desired Qualifications

  • Experience building fintech or crypto products.
  • Experience with lending, borrowing, savings, custody, payments, or other financial infrastructure.
  • Understanding of collateral management, interest calculations, liquidation engines, or financial risk systems.
  • Experience using AI-assisted development tools such as Cursor, Claude Code, Codex, or similar in an engineering workflow.

About the Company

Blockchain.com

Crypto trading, wallets, and institutional API

Blockchain.com operates a global platform for buying, storing, and trading cryptocurrencies. It serves both individuals and institutions, offering a fast cryptocurrency exchange with deep liquidity, a digital wallet for storing funds, and an institutional API for programmatic trading and live market data. The platform supports deposits and withdrawals in multiple fiat currencies through a banking network, plus premium services for advanced users. Transactions generate revenue from trading fees, wallet-related fees, and API access for enterprises. Compared to rivals, Blockchain.com emphasizes high-speed trading, broad fiat and institutional access, and robust security and reliability through its advanced matching engine, liquidity, and custody protections. Its goal is to provide a reliable, accessible, and scalable crypto trading and custody ecosystem that meets the needs of both individual traders and large institutions.

Company size
1,001-5,000
Company stage
Series E
Total funding
$600M
Headquarters
London, United Kingdom
Founded
2011

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