PROJECTS·SELECTED WORK & SYSTEM ARCHITECTURE
6 SHIPPED PROJECTS·ENTERPRISE & HEALTH TECH

Projects.

Production systems shipped since 2019 across digital health, utility telemetry, ESG reporting, and multi-account cloud platforms.

STATUS ACTIVE
Available for Lead Roles
HDH · DEBUILD v1.0.85
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TECH ARCHIVE:
P-05PCGPCG
2026 → now
Senior Developer · Technical Product Manager

Customer Data Platform

Self-service AWS platform managing ~780 EC2 instances across ~250 enterprise accounts without hitting API rate limits.

SYSTEM ARCHITECTURE SPECS

Cross-account state mirroring, event-driven provisioning via AWS EventBridge, cached security-group snapshots, and automated IAM policies.

~780EC2 Nodes
~250AWS Accounts
100%Self-Service
GoAWS CDKEventBridgeDynamoDBTypeScriptOpenSearch
Multi-Account AWS Architecture
P-03PCGPCG
2024 → 2026
Senior Developer · Tech Lead

Social Platform

B2C creator platform for 25k+ users with real-time chat, distributed media transcoding, and subscription billing.

SYSTEM ARCHITECTURE SPECS

WebSockets gateway backed by Redis pub/sub, asynchronous video transcoding pipeline with S3 lifecycle rules, and horizontal container scaling on AWS.

25k+Active Users
<50msChat Latency
99.98%Uptime
GoWebSocketsRedisAWS ECS/FargatePostgreSQL
Streaming & Media Pipeline
P-04PCGPCG
2024 → 2025
Senior Developer · Backend Lead

Sustainability Reporting Tool

ESG reporting platform migrated from single-tenant instances to a shared multi-tenant Kubernetes setup on Open Telekom Cloud.

SYSTEM ARCHITECTURE SPECS

Multi-tenant architecture on Open Telekom Cloud Kubernetes, automated emissions calculations, and auditable CSRD export pipelines.

OTCSovereign Cloud
CSRDStandard
AuditableData Trail
GoOpen Telekom CloudKubernetesPostgreSQLGraphQL
Sovereign Cloud & CSRD Auditing
P-02DevoteamDevoteam
2023 → 2024
Consultant · Backend Engineer

Meter Collection & Analytics Platform

Smart-meter ingestion for ~500k meters across 200 municipalities, serving 1M+ residents on Google Cloud.

SYSTEM ARCHITECTURE SPECS

Time-series ingestion via GCP Pub/Sub and Cloud Run, automated gap interpolation, leak detection, and partitioned BigQuery analytics.

500kSmart Meters
1M+Residents
200Municipalities
GCPPub/SubCloud RunBigQueryTerraformGo
Public Utility Telemetry Ingestion
P-01CNGCNG
2021 → 2022
Developer · Full-Stack

Digital Health Application (DiGA) - Snoring Resolution

DiGA-track snoring therapy app with 100k+ downloads and adaptive daily training plans.

SYSTEM ARCHITECTURE SPECS

BfArM DiGA medical device compliance, deterministic exercise scheduling state machine, audit logging, and Kubernetes deployment.

100k+Downloads
BfArMDiGA Track
MDR Class IRegulation
KubernetesPythonTypeScriptReact NativeNode.jsPostgreSQL
Regulated Digital Health App
P-00CNGCNG
2020 → 2021
Working Student · Full-Stack

Psychological Research Assessment Tool

Configurable test bench for university researchers measuring facial emotion recognition under controlled timing.

SYSTEM ARCHITECTURE SPECS

Frame-accurate visual stimulus loop, randomized trial sequences, real-time response capture, and automated CSV/PDF report exports.

Sub-frameFrame Timing
Multi-UniStudy Scope
100%Reproducibility
Vue.jsNode.jsExpressMongoDBDocker
University Research Testing Suite
DOMAIN COVERAGE

Built for Regulated and High-Load Environments

From municipal utility grids and BfArM-regulated medical software to multi-tenant cloud estates—systems built to stay auditable, predictable, and easy to operate.

HEALTH
DiGA / MDR
Class I Compliant
UTILITIES
1M+ Residents
200 Municipalities
ENTERPRISE
250 Accounts
Cross-Account AWS
ESG & SOVEREIGN
CSRD / OTC
EU Data Residency
Technical Collaboration

Next step

If these projects match your technical needs, check my resume for a full timeline or reach out directly to discuss a collaboration.