Yonatan Pepper
YP

Dresden, Germany Backend & cloud · AWS · Python

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Backend & Cloud Engineer

Yonatan Pepper

I build event-driven systems on AWS.

I write the Python services, provision the infrastructure they run on, and own them through release and production monitoring.

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Profile

The same engineer writes the service, provisions its infrastructure, and operates it in production.

I’m a backend and cloud software engineer based in Dresden, Germany.

My recent work focuses on AWS-based event-driven systems, Python Lambda services, Terraform infrastructure, CI/CD, automated testing, and production monitoring.

I have owned backend and cloud features from infrastructure design through implementation, release checks, and operational monitoring, including notification workflows serving up to 40 million monthly active users.

Journey

Four steps from a Diplom in Dresden to production cloud engineering.

  1. 01 — 2019

    Student - Media Informatics major at the University of Applied Sciences.

    University of Applied Sciences Dresden

  2. 02 — 2021

    Junior Dev - Python and RPA development to automate business processes.

    Deutsche Telekom MMS

  3. 03 — 2024

    Senior Dev - AWS cloud engineering.

    CGI Deutschland

  4. 04 — 2026

    Promotion to tech lead for cloud engineering team.

    CGI Deutschland

Experience

Roles focused on backend implementation, infrastructure, automation, and delivery quality.

May 2024 – Present

CGI Deutschland

Team Lead, Cloud Software Engineering

Owns backend and cloud features across AWS infrastructure, Python Lambda services, operational monitoring, and release reliability.

Mid-Level Software Engineer, May 2024 – Aug 2025; Senior Software Engineer, Aug 2025 – Jul 2026; Team Lead, Jul 2026 – Present

Oct 2021 – May 2024

Deutsche Telekom MMS GmbH

Software Engineer

Built Python automation and RPA solutions for browser and enterprise workflows, developed OCR document processing, and contributed to fiber rollout tooling with desktop and GIS components.

Oct 2019 – May 2024

University of Applied Sciences Dresden

Diplom degree, comparable to M.Sc.-level studies

Thesis research in Ambient Assisted Living with asynchronous integrations for multiple sensor-driven smart home systems.

Skills

Core technologies used in production.

Work

Concrete work across backend services, infrastructure, and automation.

Serverless Notification Pipeline

Led implementation of backend and cloud features for an AWS-based notification pipeline in an international multi-service system, supporting notification workflows for up to 40 million monthly active users.

Terraform · Lambda · MSK/Kafka · SQS/DLQ · S3 · CloudWatch

Automation and RPA Workflows

Built Python automation for customer environments, browser-based processes, enterprise application tasks, and recurring operational work.

Selenium · GUI automation · Python

OCR Document Processing

Designed OCR workflows with Tesseract, OpenCV, and Azure AI Document Intelligence to extract structured data from documents and support downstream automation.

Tesseract · OpenCV · Azure AI

Scientific research paper

Integrating a sensor floor and a smart nursing bed into openHAB 3

Research and implementation work in Ambient Assisted Living, integrating a sensor floor and smart care bed into openHAB 3 with asynchronous bindings and automation scenarios.

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Certifications

Validated foundations for cloud, backend, and architecture work.

PCEP – Certified Entry-Level Python Programmer Python Institute certification covering Python fundamentals, syntax, data types, control flow, functions, and modules. iSAQB Certified Professional for Software Architecture Software architecture certification covering architecture design, documentation, quality attributes, and technical communication. Flowable Foundation Certification Certification for Flowable concepts, process automation, workflow modeling, and BPMN-oriented application development.

Contact

Get in touch.

$ mail yonatan.pepper@gmail.com $ open linkedin.com/in/yonatan-pepper $ challenge chess.com/member/yonatanppr