London
Remote
Senior
Full Time
blockchaincryptotechnical_leadbackendkotlinjavadistributed_systemsmicroservicesfintech
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
- •Comfortable working with cross-functional stakeholders to translate product requirements into engineering solutions
- •Excellent communication skills with both technical and non-technical audiences
- •A collaborative mindset with strong ownership and bias for execution
What You'll Do
- •Lead the technical direction and architecture of the Lending & Savings platform
- •Design and build scalable, secure, and highly available distributed systems
- •Make key architectural decisions balancing scalability, performance, security, and maintainability
- •Remain hands-on, contributing production-quality code and reviewing critical changes
- •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 the delivery of technical initiatives from design through production
- •Work closely with the Business Lead and designers to translate product requirements into technical solutions
- •Break down complex initiatives into clear 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 closely with the Lending & Savings Business Lead to understand customer problems and product priorities
- •Provide technical input into product planning, helping shape solutions that balance customer value, engineering complexity, and delivery timelines
- •Collaborate with Product Design, Treasury, Trading, Risk, Compliance, and Infrastructure teams to build customer-focused solutions
- •Contribute to improving 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 exceptional engineering talent
- •Raise engineering standards across code quality, documentation, testing, and operational maturity
- •Continuously improve engineering productivity through automation and modern development practices
- •Drive adoption of AI-assisted engineering tools where they improve developer efficiency while maintaining high standards for quality and security
- •Champion continuous improvement across architecture, tooling, and engineering processes
Nice to Have
- •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 as part of your engineering workflow
Benefits
- •Full-time salary based on experience and meaningful equity in an industry-leading company
- •Work from Anywhere Policy: You can work remotely from anywhere in the world for up to 20 days per year
- •ClassPass
- •Unlimited vacation policy; work hard and take time when you need it
- •Apple equipment
- •The opportunity to be a key player and build your career at a rapidly expanding, global technology company in an emerging field
- •Flexible work culture
About Blockchain.com
Blockchain.com is a developer of a digital assets platform that offers ways to buy, hold, and use cryptocurrency.
London, UK
250 - 500
Blockchain & Cryptocurrency