Senior Rust/C++ Engineer (Backend)

Senior Backend Engineer (Rust/C++ – DeFi & Fintech)

Location: Fully Remote - EU timezone Type: Full-Time

Compensation: competetive

We are looking for a Senior Backend Engineer to lead the architecture and development of the core systems powering a next-generation decentralized exchange (DEX) and network. This is a high-impact role where you will go beyond writing code—you will design resilient, secure, and low-latency systems capable of processing high-frequency trading data in real time.

We are a dynamic, fully remote team with an ambitious roadmap and a relentless drive to redefine the future of finance. The ideal candidate thrives at the intersection of DeFi, Systems Engineering, and High-Performance Computing. If you have a deep commitment to code quality and a passion for building mission-critical infrastructure, we want to hear from you.

Key Responsibilities:

• Core Backend Development: Design and maintain the high-throughput order book and indexing systems that power our DEX and network.
• Architecture & Scalability: Architect event-driven systems and scalable APIs/WebSockets to serve real-time data to UIs and risk dashboards.
• Reliability & Availability: Implement advanced failover mechanisms, redundancy, and disaster recovery plans to ensure 24/7 uptime.
• Hardened Security: Protect backend systems against sophisticated attack patterns, including DDoS, data breaches, and injection attacks.
• Strategic Data Management: Define storage strategies that balance the trade-offs between relational databases, key-value stores, and messaging queues.
• Technical Leadership: Lead comprehensive testing strategies (load, performance, and security), participate in code reviews, and mentor team members.

Requirements

• 8+ years of professional experience in Backend Engineering, with a strong background in the Financial Services or Fintech industry.
• 6+ years of experience with Rust and/or C++, building highly scalable, low-latency web services.
• Concurrency Mastery: Expert knowledge of asynchronous programming, thread safety, and lock-free data structures.
• Database & Messaging Expertise: 6+ years with PostgreSQL and 4+ years with low-latency messaging/persistence layers like Kafka, Redis, or RabbitMQ.
• Systems Architecture: Proven track record of building high-availability systems that have handled significant transaction volumes.
• Cloud & DevOps: Proficiency with cloud platforms (AWS/GCP) and containerization tools like Docker and Kubernetes.
• Security & Testing: Strong proficiency in securing backend APIs and a deep understanding of modern software testing methodologies.

Preferred Qualifications:

• Low-Level Networking: Experience with asynchronous I/O, direct socket programming, and Linux kernel optimizations (e.g., epoll, zero-copy).
• Trading Systems: Experience fine-tuning matching engines, risk engines, or other latency-sensitive components.
• Web3 Knowledge: Familiarity with blockchain technology, smart contracts, and decentralized systems.
• Academic Background: Master’s or Bachelor's degree in Computer Science or a related field.

Benefits

• Remote-First Culture: Work from anywhere in the world with a high-performance, distributed team.
• Incentivized Compensation: Competitive salary plus equity by way of tokens on a sliding scale (tailor your package based on your preference for salary vs. equity).
• Technical Autonomy: Take end-to-end ownership of complex systems and influence our long-term technological roadmap.
• Impactful Mission: Help shape the future of finance by building decentralized tools that operate with institutional-grade rigor.
• Modern Tech Stack: Work with cutting-edge tools in Rust, high-speed messaging, and cloud-native infrastructure.

Due to the high volume of applications we anticipate, we regret that we are unable to provide individual feedback to all candidates. If you do not hear back from us within 4 weeks of your application, please assume that you have not been successful on this occasion. We genuinely appreciate your interest and wish you the best in your job search.

Commitment to Equality and Accessibility:

At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing human-resources@mlabs.city.

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