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Senior Backend Engineer - DeFi & Web3 Systems

Netherlands
Full Remote
This Job is No Longer Active This position is no longer accepting applications
AI Summary

Design, develop, and maintain high-throughput, low-latency backend systems for decentralized finance and Web3 applications. Ensure architectural robustness, security, and reliability for financial services infrastructure. Requires 8+ years of backend engineering experience with Rust or C++ and expertise in high-availability systems.

Key Highlights
8+ years backend engineering in financial services
Rust or C++ with concurrency and lock-free data structures
High-availability, low-latency trading systems
Security hardening against DDoS and injection attacks
Event-driven architecture with Kafka/Redis
Key Responsibilities
Design, develop, and maintain core backend systems powering high-throughput trading, exchange, and network infrastructure
Index on-chain data into event queues and persistence layers to serve WebSockets and scalable APIs
Define high-level backend structure, data flow, and interactions between components using event-driven architecture
Implement failover mechanisms, redundancy strategies, and disaster recovery plans to minimize downtime
Implement and maintain robust security measures to protect backend infrastructure and APIs against DDoS attacks and data breaches
Define data storage strategies and select appropriate databases and models tailored for financial applications
Develop and execute comprehensive testing strategy covering unit, integration, security, load, and performance testing
Participate in code reviews, mentor engineering team members, and enforce coding standards and best practices
Collaborate closely with cross-functional teams including on-chain engineers, frontend developers, product managers, and quantitative specialists

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Technical Skills Required
Rust C++ Concurrency PostgreSQL Kafka Redis Docker Kubernetes
Benefits & Perks
100% remote working environment
High-impact technical ownership
Collaborative performance-driven culture

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Nice to Have
Low-level network programming with asynchronous I/O and Linux kernel optimizations
Hands-on experience fine-tuning latency-sensitive components in trading systems
Familiarity with blockchain technology, smart contracts, and decentralized systems
Fundamental understanding of finance and derivatives trading

Job Description

We are hiring on behalf of our client, a fast-paced, dynamic, and fully remote team in the decentralized finance (DeFi) and Web3 space who is seeking an experienced Senior Backend Engineer. The employer operates with an ambitious roadmap and a strong commitment to engineering rigor, high-grade security, and rapid execution.As a Senior Backend Engineer, the selected candidate will play a critical role in designing, developing, and maintaining robust, high-throughput, and scalable backend systems. This role extends beyond writing code to architecting resilient, secure systems optimized for low-latency, real-time processing in financial services.
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Job Overview
Posted Jul 24, 2026
Employment Full-time
Experience Not Applicable
Location Netherlands
Category Programming
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