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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior (Rust/C++) Backend Engineer - **Company:** MLabs - **Location:** Zwickau, Germany (Remote available) - **Experience:** Expert - **Salary:** €120,000.0 - €200,000.0 - **Contract:** Permanent contract - **Skills:** Clean Code Principles, Application Programming Interfaces (APIs), Algorithmic Trading, Amazon Web Services, Microsoft Azure, C++ (Programming Language), Cloud Computing, Code Review, Databases, Data Structures, Relational Databases, Iterative and Incremental Development, PostgreSQL, Linux Kernel, Enterprise Messaging Systems, Network Architecture, Network Programming, RabbitMQ, Rapid Prototyping Process, Redis, Blockchain, Socket Programming, Data Streaming, Systems Architecture, Strategies of Testing, Web Services, WebSocket, Data Storage Technologies, Performance Testing, System Availability, Concurrency, Caching, Backend, Event Driven Architecture, Containerization, Kubernetes, Low Latency, Apache Kafka, Web3.js, Front End Software Development, Asynchronous Programming, Restful APIs, Ddos, Docker - **Published:** July 23, 2026 - **Apply:** https://www.adzuna.de/details/5812222083 ## About the Role The ideal candidate brings over eight years of engineering experience, a deep interest in Web3 and DeFi, and a strong dedication to high code quality and state-of-the-art software testing methodologies., * 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., * 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. ## 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., Backend Development * 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. System Architecture * Define the high-level backend structure, data flow, and interactions between components, focusing on event-driven architecture and messaging patterns common in financial systems. Reliability, Performance & Availability * Ensure architectural designs meet strict performance, high availability, and reliability standards. * Implement failover mechanisms, redundancy strategies, and disaster recovery plans to minimize potential downtime. Security * Implement and maintain robust security measures to protect backend infrastructure and APIs against DDoS attacks, data breaches, injection vulnerabilities, and other threat vectors. Data Storage Strategy * 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. Testing Strategy * 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. Technological Evaluation & Documentation * 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. Code Review & Team Collaboration * 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. ## Related Videos - [Get ready to Rustle](https://www.wearedevelopers.com/videos/698-get-ready-to-rustle) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [WeAreDevelopers LIVE - Chrome for Sale? 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