David Kross · Full Stack
Hire Full Stack
Available for Q3/Q4 Senior Roles & Consulting

Crafting High-Performance Web Applications from Core Architecture to Polished Pixels

Senior Full Stack Engineer & Distributed Systems Practitioner

Over 8 years building mission-critical platforms with TypeScript, React/Next.js, Node.js, and PostgreSQL. Focused on sub-100ms API responses, zero-downtime database migrations, and intuitive UX.

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Engineered for Real-World Production

Verified benchmarks from applications running in live enterprise environments

8+ Years
Production Engineering
99.99%
Historical Uptime SLA
<85ms
Median API Latency (p95)
3.2M+
Active Users Served

Featured Production Applications

Full-stack systems deployed with automated CI/CD and multi-tenant database architectures

OmniSync Cloud ERP

Multi-tenant real-time inventory management engine featuring WebSocket state synchronization, optimistic locking, and Stripe billing.

Next.js 14PostgreSQLPrismaRedisDocker
Live Demo Code

PulseMetrics Real-Time Analytics

High-throughput event tracking dashboard ingesting 40k events/sec using ClickHouse and Apache Kafka with sub-second analytical queries.

TypeScriptClickHouseKafkaTailwindCSS
Live Demo Code

AuthShield Identity Broker

OAuth2/OIDC centralized identity microservice supporting Passkeys, SAML SSO, and role-based access control with audited encryption.

GoJWTWebAuthnPostgreSQLgRPC
Live Demo Code

Verified Technical Capabilities

Tools and technologies exercised regularly across full-stack lifecycles

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Initiate Technical Collaboration

Available for principal engineering roles, system architecture reviews, and high-impact advisory contracts.

david.kross@craftfolio-engineer.dev
Berlin / Global Remote
Open to selective high-impact contracts