Senior Backend Engineer, Rust/C++

🕒 July 23

🌐 Germany, Poland, +2 more countries – Remote

🇩🇪 Germany – Remote 🇵🇱 Poland – Remote 🇳🇱 Netherlands – Remote 🇵🇹 Portugal – Remote

💵 $120k - $200k / year

⏰ Full Time

🟠 Senior

🔙 Backend Engineer

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MLabs

WebsiteLinkedInAll Job Openings

51 - 200 employees

💼 Consulting

🤖 Artificial Intelligence

💳 Fintech

Consulting • Artificial Intelligence • Fintech

MLabs is a consultancy firm specializing in Haskell, Rust, Blockchain, and AI technologies. They assist clients in setting up project specifications, implementation, management, and maintenance of technical projects across various sectors. MLabs has expertise in functional programming, compilers, AI, DevOps, and full-stack development, focusing primarily on industries such as Fintech and Information Technology.

📋 Description

• Design, develop, and maintain core backend systems powering high-throughput trading, exchange, and network infrastructure using clean, efficient, and maintainable code. • Index on-chain data into event queues and persistence layers to serve WebSockets and scalable APIs consumed by user interfaces and risk dashboards. • Define the high-level backend structure, data flow, and interactions between components, focusing on event-driven architecture and messaging patterns common in financial systems. • Ensure architectural designs meet strict performance, high availability, and reliability standards. • Implement failover mechanisms, redundancy strategies, and disaster recovery plans to minimize potential downtime. • Implement and maintain robust security measures to protect backend infrastructure and APIs against DDoS attacks, data breaches, injection vulnerabilities, and other threat vectors. • Define data storage strategies and select appropriate databases and models tailored for financial applications. • Evaluate trade-offs across relational databases, key-value stores, and messaging queues. • Develop and execute a comprehensive testing strategy covering unit, integration, security, load, and performance testing. • Collaborate with the broader engineering team to establish test reporting and maintain standardized testing processes. • Stay informed on emerging backend technologies, evaluating new tools, frameworks, and methodologies to elevate system performance and scalability. • Document architectural designs clearly for both technical team members and non-technical stakeholders. • 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, quantitative specialists, and executive leadership.

🎯 Requirements

• Experience: 8+ years of backend engineering experience within the financial services industry. • Core Languages: 6+ years of hands-on experience using Rust or C++ to build highly scalable web services. • Concurrency: Mastery of asynchronous programming and advanced concurrency patterns, with an emphasis on thread safety and lock-free data structures. • Databases: 6+ years of experience designing and maintaining relational databases (e.g., PostgreSQL). • Messaging & Caching: 4+ years of experience with low-latency persistence and messaging technologies (e.g., Kafka, Redis, RabbitMQ). • High Availability: Proven track record of building and maintaining high-availability systems managing significant transaction volumes. • Security: Strong proficiency in securing and hardening backend systems and APIs against evolving security threats. • Testing & Cloud: Strong knowledge of software testing methodologies alongside experience with cloud platforms (AWS, GCP, or Azure) and containerization tools (Docker, Kubernetes). • Communication: Excellent verbal and written communication skills with the ability to work effectively in a collaborative, remote environment. • Preferred Qualifications: • Experience with low-level network programming, including asynchronous I/O, direct socket programming, and Linux kernel optimizations (e.g., epoll, zero-copy, or kernel bypass techniques). • Hands-on experience fine-tuning latency-sensitive components in trading systems, such as order-matching engines and risk engines. • Familiarity with blockchain technology, smart contracts, and decentralized systems. • Fundamental understanding of finance and derivatives trading. • Ideal Profile Fit: • Comfort operating within a compact, agile team navigating complexity, unknowns, and technical ambiguity. • Enthusiasm for rapid prototyping, iterative development, and building the future of financial technology.

🏖️ Benefits

• Work Setup: 100% remote working environment. • Opportunity: High-impact technical ownership within a cutting-edge DeFi/Web3 ecosystem. • Culture: Collaborative, performance-driven culture with high standards for engineering excellence.