Leda Wolf

• Sole senior engineer on a greenfield rewrite of a production dealer management platform for a major automotive client, originally scoped at one month — reverse engineered and reimplemented from scratch after a lift-and-shift proved impossible due to deep integration with a parallel legacy monolith.
• Designed and built the full application architecture: Nuxt frontend, Django/Python backend, ECS workers, fully managed on AWS.
• Built the data pipeline: Python batch import scripts → NDJSON → S3 → SQS FIFO queues → ECS workers → RDS, processing millions of records daily.
• Migrated 1.4TB of production documents (~976,000 PDFs) from on-premise NFS storage to AWS S3 with zero data loss.
• Authored all Terraform infrastructure across dev and production environments.
• Defined and implemented the REST API integration between the new platform and the parallel legacy monolith.
• Maintained and extended the legacy system in parallel: Angular frontend, PHP/Laminas backend, Doctrine ORM, MySQL.
• Mentored and technically directed two junior developers through production incidents and architectural decisions.

• Introduced Playwright end-to-end testing to a codebase with no automated test coverage.
• Conducted code reviews of existing Vue.js projects and authored improvement proposals.
• Proposed and documented a Vue.js migration strategy for a Bootstrap-based component library as a path toward decomposing an ASP.NET monolith into SPA verticals, shared with technical leads and the community of practice.

• Structured job search following industry-wide tech layoffs.

• Designed and authored the migration of the product search from Elasticsearch to Typesense, including scalability planning and stakeholder alignment across teams.
• Built two Node.js backend microservices serving as integration adapters between search and the customer-facing frontend.
• Improved test coverage and testing scenarios for the customer-facing frontend application.
• Used Datadog to investigate and prioritize production incidents by impact.

• Proposed and prototyped a generational stack improvement using Nuxt with Magnolia CMS.
• Authored multiple technical proposals improving testability and frontend stability, presented to engineering management.

• Built PWAs for multiple insurance products using Vue.js, Nuxt, and Apollo GraphQL, meeting accessibility, performance, and deadline targets.
• Stepped into Scrum Master responsibilities to fill a team need.
• Onboarded and mentored junior developers, with particular focus on those transitioning into tech from non-technical backgrounds.

• Maintained and extended backend infrastructure using Spring (Java) on AWS EC2.
• Developed the B2B customer-facing frontend using server-side rendered templates.

• Built a full-stack distributed processing platform using Spring (Java) and React/TypeScript.

• Developed full-stack internal web applications using React, Spring (Java), and JavaScript.

• Developed a Vaadin desktop widget for a Java-based renewable energy management platform, integrating live market data from the European Energy Exchange (EEX) via HTML scraping and parsing.
• Built the data pipeline calculating projected wind turbine energy resale profitability against live EEX market prices.

Thesis: Random Number Generators — 1.3 (sehr gut)