AWS Cloud Engineering.
Serverless-first.
Services
What it takes to succeed on AWS.
Cloud-native architecture that scales.
I design and implement serverless architectures on AWS - with Infrastructure as Code, production-ready. Scalability, cost efficiency, and future-proofing are built in from day one.
Scalable and multi-tenant from day one.
Tenant isolation, scaling, billing, monitoring. No noisy-neighbor headaches. With deep experience building and scaling SaaS products that you can tap into directly.
AI where it actually adds value.
From RAG pipelines and intelligent automation to AI integration in existing products and AI-powered development. Secure, focused on value, with cost and data privacy in mind.
Existing systems, new direction.
Organically grown setups, tech debt, runaway costs? I analyze your AWS infrastructure, develop a clear plan, and help with the implementation. Pragmatic, as a team player with experience and judgment.
A foundation that grows with you.
Multi-account setup, SSO, permissions, audit trails. Step by step, sensible decisions at the right time. That way the foundation scales with you, stays flexible, and ensures that compliance and security match your current landscape.
The power-up for your team.
I work with your team on hard problems, challenge decisions, and act as a sparring partner. From architecture reviews to joint implementation, with genuine knowledge transfer.
Approach
Expertise that delivers - in the project and on your team.
Analysis & Architecture
Every project starts with the right questions. I assess strengths and weaknesses, challenge assumptions, and design architectures that fit the mission. The result: a clear vision and an actionable plan.
Iterative Delivery
Every increment delivers value and a deployable - ready to ship. Step by step, new features, stability, and a better product emerge. Reviews and fast feedback help stay on course.
Ownership & Knowledge Transfer
I complement your team as an experienced partner and help set the right course. Code follows defined principles, knowledge is shared. The result: a joint work that can be evolved without me.
My Stack
Serverless-first. Full-stack. The tools I work with every day.
Personal. Direct. Experienced.
Great cloud engineering comes down to the right minds.
Nicolai Lang
Principal Cloud Architect & Engineer
20 years of software development. Over a decade on AWS. Team Lead and Tech Lead. In consulting and engineering projects for mid-market companies and enterprises. WABI Engineering is the logical next step - and my answer to what good cloud engineering should look like. When needed, I work with a network of experienced professionals - so WABI scales for larger engagements too.
Multi-Account Landing Zone & Identity
An organically grown AWS organization, many accounts, no unified governance. I set up the entire org structure as Infrastructure as Code and introduced centralized identity management.
BedrockS3 VectorsOpenSearchLambdaEUSCSaaS Loyalty & Couponing Platform
Multi-channel loyalty and couponing platform for retailers in the SAP ecosystem. Customers earn points, retailers gain data insights and can target offers precisely. Multi-tenant SaaS, event-driven, and API-first.
LambdaDynamoDBOpenSearchEventBridgeCorporate VPN with Customer Network Integration
Employees needed secure access to both the internal network and customer systems - without IP chaos. Implemented as a corporate VPN with site-to-site connectivity and tenant-specific DNS resolution.
LambdaDynamoDBAPI GatewayEventBridgeMulti-Tenant Service Console
Multiple tenants, one interface - each only sees what belongs to them. Built as a service console with micro-frontend architecture and tenant-aware authentication.
TextractBedrock Knowledge BasesS3 VectorsLambdaSAP Customer Data Platform - Integration
Multiple product teams, organically grown retail IT, SAP CDP as the central customer data platform. I designed and implemented the integration architecture - decoupled, event-driven, and usable across teams.
OrgFormationSCPsIdentity CenterAzure Entra ID
Let's talk
Whether it's a new initiative, an urgent bottleneck, or a second opinion on your current architecture. A quick conversation will show how I can help.