Goodvest is an investment platform focusing on sustainable and ethical
investment options.
• Implemented comprehensive monitoring and alerting system using
OpenTelemetry, leading to 50% reduction in API response times through data-
driven optimizations and proper database indexing
• Led Kubernetes infrastructure planning and initial implementation to improve
system scalability and reliability
• Engineered real-time user tracking solution integrating Segment and PostHog
across frontend and backend systems, enabling data-driven product decisions
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• Established end-to-end testing framework using Playwright, significantly
improving application stability and reducing regression bugs
• Coordinated cross-functional team efforts to modernize legacy components
while maintaining system stability
Technologies: Python, Django, Vue.js, Kubernetes, PostgreSQL, GitLab CI/
CD, AWS, Segment, PostHog, Playwright, OpenTelemetry, Prometheus

Wolt is a food delivery application operating in 29 countries, with more than
140,000 restaurants and more than 45 million users.

• Led architecture and development of a high-performance audience builder
  tool (Golang backend, React frontend) used by 320+ marketing managers for
  creation and export of targeted audiences to third-party ad networks
• Optimized near real-time data pipeline processing 500M+ rows daily;
  designed event-driven architecture with Kafka streams to distribute audience
  data to DynamoDB, PostgreSQL and third-party integrations, achieving 30x
  faster speeds, 67% cost reduction, and 100x scalability
• Integrated DynamoDB for sub-10ms query responses in the audience builder,
  enabling fast audience filtering and providing real-time eligibility checks for the
  ordering system's promotion feature
• Developed data visualization dashboards with Python (FastAPI) providing
  insights into audience segments and marketing campaign performance
• Directly managed project requirements and roadmap with marketing
  stakeholders, while coordinating integrations with multiple engineering teams
  to ensure seamless data flow between systems, resulting in more effective
  targeted campaigns
  Technologies: Golang, Python (FastAPI, Airflow), React, PostgreSQL,
  Snowflake, DynamoDB, S3, Kubernetes, Kafka

viafintech is a payment service provider. Through viacash, they offer a solution
for cash deposits, withdrawals and payments for clients like N26, bunq,
Amazon.de in retails such as DM, Rewe, Penny.

• Integrated multiple external transaction API such as Alipay or Incomm (gift
  cards) using Golang. Enabling the user to use these services at a retail.
• Designed and developed an iOS and Android application to find the nearest
  retail partners with React Native and Typescript.
• Engineered a new deployment system written in Golang, affecting 60+
  services. Integrated using Golang and Bash with Docker, GitLab, AWS S3 and
  Vault. Reducing the deployment time by 95%.
• Mentored new team members, accelerating their onboarding process and
  bringing them up to speed on project specifics, codebases, and best practices.
  Technologies: Golang, React / React Native, PostgreSQL, RabbitMQ

Leading cybersecurity company providing automated secrets detection and
management solutions to secure software development lifecycles for over
400,000 developers worldwide.

• Involved in the main website redesign using Gatsby with serverless functions
  in NodeJS, now viewed by more than 50k engineers per month
• Created a B2B dashboard used by some Fortune 500 with Django and React
  Technologies: Django, Python, React, PostgreSQL, Golang