Joblaze summary

In the role of Back-End Engineer for Blockchain's trading platform, the individual will focus on designing and maintaining backend services that support trading operations, including order management and real-time data processing. Proficiency in Kotlin and Python is essential, along with experience in building REST APIs and handling real-time streaming protocols. This position is ideal for someone with a solid background in backend development and a keen interest in financial markets or cryptocurrency. The team is international, fostering a collaborative environment that emphasizes engineering excellence.

Joblaze insights

Listed about a month ago — first seen on Joblaze September 3, 2026. Last confirmed on Blockchain.com's careers page October 27, 2026.

Quick facts

Is the Back-End Engineer, Trading role remote?: It's hybrid — Blockchain.com expects some on-site time in London.
How much experience is required?: At least 3 years of relevant experience for this Back-End Engineer, Trading role.
Where is the role based?: Blockchain.com is hiring for this position in London.
What's the tech stack?: Joblaze extracted these technologies from the posting: AWS, Docker, Kotlin, Kubernetes, Python, REST.
What seniority level is this role?: Blockchain.com targets mid-level candidates for this position.
Is this full-time or contract?: Full-time for this Back-End Engineer, Trading role at Blockchain.com.

From the original posting

Blockchain is connecting the world to the future of finance. As the most trusted and fastest-growing global crypto company, it helps millions of people worldwide safely access cryptocurrency. Since its inception in 2011, Blockchain has earned the trust of over 90 million wallet holders and more than 40 million verified users, facilitating over $1 trillion in crypto transactions.

As a Back-End Engineer on our Cryptocurrency Trading Platform, you will build the backend services that power our internal and external trading products — from order management and market data processing to the REST APIs and WebSocket streams that serve our web and mobile clients. You'll work closely with product, engineering, and trading teams, and contribute to our culture of engineering excellence. The role is based in London and the team is international.

WHAT YOU WILL DO

Design, build, and operate backend services in Kotlin and Python that power our trading products, from core trading workflows to client-facing APIs.
Develop and improve services for order management, market data processing, and trade lifecycle handling in a real-time, high-volume environment.
Build and maintain REST APIs and WebSocket streams that deliver real-time prices, order updates, and account data.
Collaborate with cross-functional teams — product, frontend, trading — to adapt the platform quickly to new features and market conditions.
Ensure high availability, reliability, and scalability of trading services, with a sharp focus on latency, observability, and testing.
Contribute to architecture discussions and technical decisions, writing clean, maintainable code and sharing knowledge across the team.

WHAT YOU WILL NEED

Professional experience building backend services, ideally in Kotlin and/or Python.
Solid experience designing and building backend services and REST APIs; experience with WebSockets or other real-time streaming protocols such as NATS/JETSREAM is a plus.
Working knowledge of SQL and experience integrating with multiple internal or third-party services.
An understanding of performance fundamentals — identifying bottlenecks, managing latency, and building systems that stay responsive under load; experience with real-time or event-driven systems is a plus.
Strong problem-solving skills and clear communication with both technical and non-technical colleagues.
Curiosity and enthusiasm for learning new technologies; interest in financial markets or crypto is a plus, not a requirement.
Familiarity with Docker/Kubernetes and cloud environments (AWS) is a plus.

COMPENSATION & PERKS

Full-time salary based on experience and meaningful equity in an industry-leading company
Role based in our London office, with a mandatory in-office presence four days per week
Work from Anywhere Policy - up to 20 days to work remotely
ClassPass
Budgets for learning & professional development
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

Blockchain is committed to diversity and inclusion in the workplace and is proud to be an equal opportunity employer. We prohibit discrimination and harassment of any kind based on race, religion, color, national origin, gender, gender expression, sex, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law. This policy applies to all employment practices within our organization, including hiring, recruiting, promotion, termination, layoff, recall, leave of absence, and apprenticeship. Blockchain makes hiring decisions based solely on qualifications, merit, and business needs at the time.

Standard company text repeated across Blockchain.com's postings is omitted here.

Back-End Engineer, Trading

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