Google Maps Experts in Germany

• Add/create test specifications
• Conduct regression tests
• Conduct release tests
• Analyze Jira tickets
• Identify software defects and fix them with C#

• Designed and implemented scalable ETL/ELT pipelines using Python, SQL, dbt, AWS and Informatica to ingest data from sources such as APIs, relational databases, and flat files into Snowflake, reducing pipeline runtime by ~30%.
• Migrated high-volume datasets from on-premises Teradata to Snowflake using AWS services (S3, Glue, Step Functions, IAM), ensuring data consistency and integrity.
• Applied Kimball methodology to design star and snowflake schemas, improving query performance and reducing Snowflake compute costs.
• Implemented automated data quality checks using SQL-based dbt tests and the Great Expectations framework to detect anomalies and enforce data correctness before production loads.
• Orchestrated ETL workflows in Airflow using Python and managed code deployments via Git with CI/CD best practices to increase deployment reliability and maintain pipeline uptime.
• Built interactive Power BI dashboards and curated datasets to enable data-driven decision-making for stakeholders.
• Maintained technical documentation in Confluence for ETL workflows, and led knowledge-sharing sessions for new joiners.

Overall architecture and technical implementation of a Wix-based subscription frontend with Stripe payments and connection to Axxessio's SaaS backend. Implemented Stripe Checkout, subscriptions, webhooks, and transaction logging end to end. Customer data and contract information transferred automatically via a JWT-protected REST API. Designed and documented proxy and security architecture for IP whitelisting, HMAC, and operations, and aligned it with the backend team.

Stack: Wix Studio, Wix Velo, JavaScript, Stripe, Webhooks, JWT, HMAC, REST API, Hetzner, Cloudflare

• Migrated the Billomat API integration to InvoiceNinja API, boosting system reliability by 33% for 1300 users.
• Established an ESLint configuration with Husky and lint-staged, resulting in a 23% decrease in code review issues and refined code consistency across 5 repositories.
• Improved team processes by refining the Kanban workflow.
• Optimized frontend performance, built a new CI/CD pipeline, and implemented AWS resource monitoring to strengthen deployment reliability and system observability.

• Opt-in RAG extension over tenant-owned data sources (SharePoint, Confluence) on existing multi-tenant enterprise AI platform
• Architecture: ADRs, solution evaluations, permission strategy, cost modeling
• End-to-end SharePoint and Confluence connectors: OAuth consent flows, token refresh, metadata sync, search integration
• Permission resolution: ACL indexing at ingestion and query-time verification (document-level security)
• Elasticsearch hybrid search (semantic + keyword) with RRF scoring
• RAG chat with context injection and source citations
• Stack: Elastic Cloud, Elasticsearch, Docker, Northflank, Next.js, React, TypeScript, Prisma, Microsoft Graph API, Atlassian REST API, OAuth 2.0

• Further development of the Android app "StarMoney"
• Major XML to Compose redesigns
• Introduction of new technologies and architecture
• Implementation of instant bank transfer
• Development following the agile Scrum process

• Frontend development and implementation of various designs (landing pages, overview pages)
• Responsible for the content and updates of the Datalyze Solutions company website
• Joint planning and development of an admin application for listing and locating real estate projects (CBRE)
• Joint planning and development of extensive solutions for automatic staff allocation in plants (Bosch)
• Backend development of various small projects with different stacks
• Tech stack: GitLab CI/CD, Elixir, Phoenix Framework, Ecto, PostgreSQL, Docker, Hetzner, Traefik, NGINX, Python, Flask, Next.js/React, Leaflet, GeoServer, TypeScript, MongoDB

• Established and configured Docker containerization infrastructure for frontend development, ensuring seamless synchronization with Docker Hub repositories and Virtual Private Server deployments
• Implemented comprehensive ESLint code quality standards across the entire TypeScript and React Vite codebase to maintain consistent coding practices and enhance code maintainability
• Developed and maintained schema synchronization protocols between frontend and backend systems to ensure data consistency and API compatibility
• Designed and executed automated CI/CD pipeline workflows to streamline development processes and reduce deployment time by 40%
• Collaborated with cross-functional teams to architect scalable microservices infrastructure supporting high-availability production environments
• Conducted comprehensive code reviews on best practices for modern web development frameworks and deployment strategies

• Developed ASR and TSR-based speech processing pipelines on AWS, enabling efficient feature extraction and scalable deployment for speech and text analytics.
• Built a Multimodal Speech Emotion Recognition system combining NLP and deep learning (audio + text), achieving 98% accuracy and supporting real-time, cloud-based inference.
• Designed and optimized end-to-end model training and evaluation workflows using AWS services (S3, EC2, Lambda) to ensure performance, reliability, and reproducibility.
• Created and deployed interactive, user-friendly dashboards for data visualization and insight generation, supporting research teams and management in data-driven decision-making.

• Authored and self-published digital books, transforming original ideas into structured content
• Planned and executed content strategies to promote publications across multiple social media platforms
• Established and managed accounts on YouTube, Instagram, X (Twitter), and TikTok to build an international audience
• Produced educational short-form videos focused on geography, world facts, history, and science
• Created country-focused content explaining culture through famous personalities, cuisine, landmarks, discoveries, and iconic brands
• Applied AI technologies such as text-to-speech, text-to-video, text-to-image, and prompt engineering to enhance content creation
• Designed and animated interactive quiz videos, flag-drawing sequences, and culturally themed explanations
• Developed interactive formats (quizzes, games, facts) to increase global awareness and cross-cultural understanding
• Focused on making complex topics accessible and entertaining to a diverse, international audience

• Built scalable Flutter apps (mobile & web) using BLOC and Clean Architecture, improving app performance and maintainability.
• Delivered advanced AI & agentic AI features with real-time communication and personalized user flows.
• Developed backend services in Ktor (Kotlin) and ensured quality via testing, CI/CD, code reviews, and Scrum practices.

• Code & project cleanup to accommodate multiple developers
• Implemented project linting (ESLint, Prettier, Husky Hooks)
• Refactored application routing and authentication logic (ReactJS, Next.JS, Recoil)
• Implementing vital UI ideas as standalone features into an administration dashboard (ReactJS, Tailwind CSS, Next.JS, TypeScript)

• Led the development of a doctor scheduling Android app, integrating Jetpack Compose and Kotlin Multiplatform, achieving a 30% performance improvement.
• Implemented complex UI components, ensuring 99.8% crash-free user sessions.
• Seamlessly integrated Compose UI with existing View-based components.
• Optimized API calls, reducing load times by 20%.
• Tech Stack: Kotlin, Jetpack Compose, KMM, MVVM, Koin, Firebase, Stripe API, Crashlytics

• Explored the impact of neural network structure on network-inspired kernels, such as Neural Tangent Kernel (NTK).
• Demonstrated through theoretical analysis and empirical studies that the RKHS of NNGP is a subspace of NTK.
• Explored the connections between these kernels and the Matérn family.