Backend Engineer L4 Interview Process: Initial Assessment Take home assignment Assignment Review and Interview Whiteboarding Technical Interview Culture Fit Why This Role Work on scalable, high-performance backend systems that power Trustana s B2B platform. Youll design REST/GraphQL APIs, optimize microservices, and collaborate across teams to build a seamless trade experience. Tech Stack: Node.js, TypeScript, SQL/NoSQL, AWS (Lambda, Serverless) What You ll Do Architect and refactor backend services for scalability to handle enterprise-level data volumes and performance benchmarks seamlessly.Proactively identify and resolve performance bottlenecks, ensuring system reliability and availability. Collaborate with cross-functional teams to define features and solve challenges.Work with infrastructure teams to scale services and perform root cause analysis. What You Bring over 5 years of backend experience, ideally in startups or e-commerce. Proven track record of architecting backends that successfully scaled to support significantly larger customer bases. Mandatory: Knowledge of LLMs and optimizing solutions using AI.Expertise in Node.js, SQL/NoSQL databases, and cloud architectures (AWS, Lambda).Hands-on experience in developing, optimizing, and maintaining enterprise-scale APIs (REST/GraphQL), event-driven design, caching patternsStrong understanding of microservices, APIs, and web security.Experience in test-driven development and performance optimization. What You Get Build core backend systems that directly impact users.Work with modern cloud-native architecture in a fast-moving SaaS company.Collaborate with skilled engineers solving real-world problems.Competitive salary, benefits, and career growth opportunities.If you thrive on building scalable backend solutions and working on complex, high-impact systems, this role is for you.