High-Performance Engineering for Scaling Tech Companies
A battle-tested team of senior developers, architects, and data engineers. We design and build scalable systems, AI tooling, and microservices. Ready to deploy.
Our Story
Born from the core engineering team behind one of Hungary's largest enterprise e-commerce marketplaces, backed by a leading regional banking group. We built, scaled, and managed the infrastructure that handled the region's #2 marketplace engine requirements and 150K+ daily peak visitors.
When the platform's lifecycle came to a strategic close, we didn't scatter. Ziff. was founded to unite this battle-tested squad under one roof. Brought together by their former Team Lead, our network of senior developers, architects, and data engineers is ready to bring that exact same high-performance execution and corporate-grade velocity to companies that need it most. We are online, pre-unified, and ready to deploy.
The Team
Senior-Only. Pre-Unified.
A pre-synchronized team of senior specialists. No assembly required, no ramp-up time.
Founder and Lead Engineer at Ziff. 10+ years building distributed, high-load systems in production. Led the full platform transformation of one of Hungary's largest e-commerce platforms. TypeScript, Node.js, React, Kafka, cloud infrastructure.
Transforms platforms across Finance, Telecom, and E-commerce. Designed integration architecture for massive-scale enterprise platform unifications. Managed Kafka-based migration of 6M+ customer records across distributed systems.
10+ years cloud-native experience across Azure and GCP. CKA and CKAD certified. Architected a full GitOps delivery platform from scratch for 200+ services. Authored zero-manual-intervention Terraform modules for production environments.
Led engineering teams of 14–15 people across MedTech, FinTech, and Telecom. As Principal Technology Consultant at Oracle, modernized enterprise Java/SOA stacks for major clients. Built a production telematics platform, migrating from Oracle legacy to event-driven microservices.
Built QR-code payment integration handling 100+ restaurants and 4M+ monthly transactions, designed for fault-tolerance and near-instant processing. Took SRE ownership of a video identification system under high load. Deep background across .NET legacy, healthcare simulation platforms, and real-time transaction systems.
5+ years on a global streaming platform serving millions of users: login, registration, subscription flows at scale. Built an e-commerce webshop with complex analytics and merchant management. Actively integrates AI coding agents into delivery workflows to accelerate engineering throughput.
Full CVs available on request. These are some profiles from a 10+ person senior core, each with a distinct background, vertical, and technical depth.
Life at Ziff
Our Expertise
Stack & Capabilities
Microservices & Architecture
Event-driven distributed systems designed for scale. Kafka-based async communication, strangler fig decomposition of monoliths, zero-downtime migrations.
Fullstack Engineering
End-to-end product delivery across modern stacks. From performant React/Next.js frontends to TypeScript/Node.js backends built for high concurrency.
AI Tooling & Automation
Internal AI tooling, LLM integration, data pipeline engineering, and ML workflow automation that delivers real operational leverage.
Cloud & DevOps
GitOps delivery pipelines, Kubernetes on AKS/GCP, Terraform IaC, ArgoCD, Istio service mesh. Infrastructure that runs itself.
Legacy & Core Modernization
We speak the language of your existing systems. Phased monolith-to-microservices transitions, database migrations, and performance overhauls without business disruption.
Performance & Scalability
Query optimization, caching strategies, and infrastructure tuning. Serving more traffic with what you already have before expanding capacity.
Engagement Models
How We Partner
Staff Augmentation
Inject senior engineering power directly into your existing squads. Zero ramp-up, immediate velocity.
- Seamless integration with your existing workflows
- 100% senior engineers, every engagement
- Scale up or down as project demands shift
Product Delivery
Full-cycle development from architecture design to production deployment. We own the outcome, not just the output.
- Architecture design through production deployment
- Embedded QA and product ownership available
- Direct engineer-to-client collaboration
Architecture Audit
Deep-dive technical evaluation of your stack. We identify bottlenecks, security risks, and scaling paths in weeks, not months.
- Codebase quality and architecture review
- Cloud cost analysis and optimization roadmap
- Security vulnerability and compliance assessment
Case Study
Rewriting the Engine at 10,000 Feet
Hungary's second-largest e-commerce marketplace. Legacy monolith transformed into a modern distributed system while the platform stayed live.
A rigid legacy MVP architecture unable to handle commercial growth. Monolithic codebase creating critical DB bottlenecks under peak load, with continuous business operations that could not be interrupted.
Phased transformation using the strangler fig pattern. Incremental microservice decomposition, MongoDB to PostgreSQL migration with zero data loss, Apache Kafka for event-driven communication, AKS deployment with GitOps pipelines.
A fragile legacy platform transformed into a modern distributed system supporting massive commercial growth. 25B+ HUF annual revenue, 150K+ daily visitors, backed by a major Hungarian banking group.
Engineering DNA
How We Work
Type-Safe Development
TypeScript across the stack. Fewer bugs in production, faster onboarding, and codebases that scale without falling apart.
Event-Driven Mindset
Systems designed for async-first communication. Decoupled services, resilient under load, easy to extend without rewrites.
Direct Collaboration
No layers between you and the engineers doing the work. You talk to the person writing the code.
Async-First, Sync When It Matters
Deep work culture with focused collaboration sessions. We respect your team's time and ours.
Pragmatic Modernization
We don't rewrite for the sake of it. We evolve systems incrementally, keeping the business running while improving the foundation.
Legacy & Core System Experience
We speak the language of existing systems. Oracle, Java, .NET, monoliths — we know how to modernize them without business disruption.
Why Choose Us
The Ziff Advantage
100% Senior Core
Pre-unified team of leads and seniors. No junior padding, no training overhead. Every engineer on your project has 8+ years of production experience.
Strategic Ownership
End-to-end domain ownership and direct access to the engineers doing the work. No layers, no handoffs, no lost context.
Battle-Tested at Scale
Forged on one of Central Europe's largest e-commerce marketplaces. We know exactly what breaks under massive load and how to prevent it.
Zero Onboarding Overhead
Pre-synchronized team with shared architectural principles and production memory. We sync with your pipeline and deliver within days, not months.
War Room Experience
When production breaks, we don't panic. We've run structured incident response at scale and know how to coordinate rapid recovery under pressure.
Infrastructure Efficiency
The real outcome isn't just scaling. It's serving more traffic with what you already have. We optimize before we expand.
We have limited capacity for Q3. If your tech stack needs senior-level execution right now, let's talk.
Contact
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Conversation
Tell us about your stack, your bottlenecks, or what you're trying to build. We'll figure out the right engagement together — no commitment required.