Trustana is hiring a

Web3 Senior Back End Engineer L5 - Berlin

Senior Engineer Role L5 at Trustana Up to 9K Euro / month. Please note: we do not provide relocation into Berlin. About the Role: Join Trustana's Engineering Team as a Senior Engineer (L5) and harness technology to empower users with data control, creating a seamless trade journey for buyers and suppliers. You will work on diverse projects including e-commerce platforms, ERP systems, and serverless microservices. Required Tech Stack: Node.js, Typescript, database (SQL, noSQL), AWS / Lambda Responsibilities:

Lead the development of REST/GraphQL web services and APIs for our B2B platform. Collaborate on the design and architecture to ensure scalability and high performance. Ensure the delivery of high-quality, optimized code and services. Participate in and guide service planning, performance tuning, and software analysis. Collaborate with cross-functional teams to define feature specifications. Partner with the infrastructure team to scale services and perform root cause analysis.

Qualifications:

7-10 years of Back End experience in complex projects with familiarity in Front End technologies. Proven experience in a startup environment. Significant experience in e-commerce platforms. Experience with serverless architecture. Advanced proficiency in Node.js. Extensive experience with SQL/NoSQL databases. Strong knowledge of design patterns, microservices, and cloud deployment. Deep understanding of REST APIs and GraphQL. Solid background in test-driven development. Hands-on experience with AWS and other cloud stacks, including Docker. Strong understanding of web security principles. Experience with LLMs, and optimisation of solutions using LLMs

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