Werner Tjaden

As part of my ongoing work at Capgemini, I'm currently leading cloud architecture for PON, which involved a significant organizational change when BMS split off from the main company. During this transition, I created the BMS landing zone and successfully migrated 30 AWS accounts to the new organization, ensuring minimal disruption while enhancing security and governance.

My work continues with architecting cloud environments by designing secure multi-account infrastructure and networking architecture that aligns with AWS Well-Architected principles. This project involves close collaboration with cross-functional teams to establish robust cloud governance frameworks that support the organization's business objectives and future growth.

Concurrently with my PON assignment, I've taken on an exciting challenge at Equigy B.V., where I'm leading the implementation of an AWS landing zone for their Crowd Balancing Platform. This innovative solution connects energy buyers and sellers to balance Europe's energy network, directly contributing to Europe's renewable energy transition.

I've designed a secure, high-performance architecture based on AWS LZA that enables real-time energy trading across multiple European markets. The implementation leverages automated CI/CD pipelines using Azure DevOps, AWS CodeBuild, and Terraform to ensure reliable and consistent infrastructure deployment. Working in an Agile/Scrum methodology has allowed me to deliver high-quality AWS infrastructure that meets strict regulatory and availability requirements while supporting Equigy's mission to revolutionize energy markets.

I led the design and development of an innovative Continuous Compliance application that transformed how organizations monitor regulatory compliance. Starting with conceptualizing the High-Level Design (HLD), I architected a cutting-edge AWS serverless, event-driven solution powered by GenAI OCR and RAG on AWS Bedrock.

This solution utilized Claude Haiku LLM to extract and analyze compliance data and created a centralized document repository with Bedrock Agent and RAG process for real-time compliance monitoring. I personally created comprehensive data flow diagrams and detailed application solution designs while leveraging AWS serverless technologies for the infrastructure architecture. Leading cross-functional teams to implement this solution was particularly rewarding as we saw immediate results in reducing manual compliance efforts.

At Tata Steel, I architected their Greenfield SAP on AWS Landing Zone, integrating AWS Code CI/CD pipeline with the AWS Landing Zone Accelerator (LZA) solution. This project required ensuring seamless integration of SAP S4 into the AWS environment, with an emphasis on building secure AWS landing zones from the ground up.

I utilized Azure DevOps as the central repository and designed streamlined development processes through CI/CD pipelines using AWS Code Build and Code Deploy. My in-depth knowledge of AWS architecture and secure landing zones allowed me to deliver a secure platform design that met Tata Steel's exacting requirements. Being instrumental in the successful execution of phase 1 of this project showcased my proficiency in designing secure AWS solutions and CI/CD pipelines for enterprise-scale implementations.

During my time at Amazon Web Services as an AMS Cloud Architect, I served as principal trusted adviser for a major financial services enterprise migrating to AWS Managed Services (AMS). This role allowed me to build strong executive-level relationships, establishing myself as the primary technical authority for AWS architecture and AMS operations.

I led cross-regional team collaboration, working from Cape Town while coordinating with team members in Ireland and UK to deliver cohesive solutions. My responsibilities included providing critical architectural guidance during complex migration phases and ensuring adherence to AWS Well-Architected Framework and AMS guardrails. I personally validated business-critical application designs to ensure they met stringent security, compliance, and operational requirements.

A significant part of my role involved understanding the client's financial services workloads in depth, which allowed me to recommend optimized solutions balancing performance, compliance, and cost-efficiency. I conducted thorough workload assessments and provided detailed recommendations for right-sizing, resulting in significant cost optimization while maintaining performance. I took pride in bridging communication between technical teams and business stakeholders, translating complex cloud concepts into clear business outcomes, and facilitating knowledge transfer to client teams.

My time at LemongrassCloud represents one of the most transformative periods of my career. During these nearly four years in Cape Town, I successfully migrated enterprise clients based across the UK, Netherlands, South Africa, and Germany to AWS. I joined as their Cloud Infrastructure Architect and quickly took on leadership of a team of talented infrastructure engineers. Together, we architected enterprise cloud solutions that revolutionized how our clients operated across diverse sectors.

Throughout my tenure, I worked with more than 15 customers spanning financial services, retail, transportation, manufacturing, and energy sectors. Each migration project presented unique challenges, whether technical, regulatory, or organizational. My role consistently involved designing secure landing zones for enterprise application workloads, handling application lift-and-shifts, refactoring applications for cloud optimization, and leading teams of infrastructure engineers during complex migration projects.

Pick n Pay (02/2021 - 03/2022)

One of my proudest achievements was leading Pick n Pay's migration from their South African data centers to AWS regions in Ireland and Cape Town. This complex cross-continental project involved closing an on-premises data center and migrating all workloads to AWS Ireland.

I played a critical role in cloud cost management by overseeing workload instance selection and optimization to ensure the migration delivered financial as well as technical benefits. As the Cloud Infrastructure Architect, I designed the AWS Landing Zone for both SAP and non-SAP enterprise application migrations, creating a robust, cost-optimized infrastructure for successful cloud transition.

I managed a team of 5 consultants responsible for integration and migration, ensuring coordinated effort throughout the process. When faced with a potentially project-threatening network latency issue, I proactively engaged with third-party service providers and customer teams to conduct a thorough investigation. Through collaborative problem-solving, we identified and resolved the issue, mitigating a significant risk to the overall project.

The project not only met its deadline but positioned Pick n Pay to embrace a cloud-native approach, leveraging AWS advantages for their operations. My technical leadership and proactive approach were acknowledged by the PMO, who praised my deep technical expertise, development of excellent customer relationships, and mentorship of junior team members. My contribution was deemed critical to the overall success of Pick n Pay's non-SAP migrations.

Transport for London (01/2020 - 02/2021)

For Transport for London (TfL), I served as Infrastructure Architect on their mission-critical SAP environment migration to AWS. Working alongside skilled SAP Basis consultants and other architects, I built out the AWS landing zone from scratch, designing both the core infrastructure and the shared services account that would support TfL's SAP estate post-migration.

This project demanded meticulous planning and execution, given the mission-critical nature of TfL's operations. My expertise in infrastructure design, coupled with comprehensive understanding of AWS best practices, enabled a streamlined migration process that met all project deadlines. The resulting cloud environment significantly improved their operational efficiency and provided the resilience necessary for a system that millions of Londoners depend on daily.

Nationale-Nederlanden (03/2020 - 01/2021)

At Nationale-Nederlanden in the Netherlands, I worked as senior infrastructure consultant to build a greenfield AWS landing zone with an automated Linux platform specifically designed for their SAP migration. Beyond the technical implementation, I designed and implemented shared services that would be managed by operational teams post-migration.

A crucial part of this project was ensuring knowledge transfer to the client's team. I personally documented processes and facilitated knowledge transfer sessions to ensure a smooth transition of support to the operational teams. Following the migration, I ensured a seamless transfer of support responsibilities by creating effective documentation and thorough knowledge transfer procedures.

The migration was completed successfully within the designated project deadlines. The client teams were trained adequately, and the transition occurred without delays or disruptions. My expertise, meticulous planning, and effective collaboration with the team were specifically acknowledged by Nationale-Nederlanden leadership.

Comprehensive AWS Expertise

Throughout my time at LemongrassCloud, I honed my expertise across the AWS ecosystem, including:

• AWS computing and networking architecture
• AWS CloudFormation for infrastructure as code
• AWS Direct Connect and Transit Gateway for complex networking
• AWS WAF and security best practices
• AWS Identity & Access Management
• AWS Migration Hub and Server Migration Service
• Cost optimization and cloud financial management

Beyond technical skills, I developed robust methodologies for cloud migrations and established myself as a trusted advisor to enterprise clients undergoing digital transformation. The relationships formed and the technical challenges overcome during this period were instrumental in shaping my approach to cloud architecture and solidifying my passion for helping organizations harness the full potential of AWS.

For over eight years at Computacenter, I directed a high-performing technical team responsible for managing enterprise-scale infrastructure across multiple European data centers. As the technical authority for mission-critical environments, I supported thousands of users across financial services, manufacturing, and retail sectors.

My infrastructure management responsibilities were extensive, overseeing complex environments that included Windows/Linux servers, VMware virtualization platforms, storage systems, and networking components. I designed and deployed Private Cloud solutions that achieved improved scalability and significantly reduced operational expenses. One of my key contributions was engineering and maintaining high-availability infrastructure that consistently delivered 99.99% uptime, essential for our enterprise clients.

I developed comprehensive disaster recovery and business continuity solutions tailored to enterprise requirements with stringent RTO and RPO objectives. My expertise in business continuity planning became particularly valuable during several critical incidents, where my team's preparation ensured minimal disruption to client operations.

I began my enterprise IT journey at Dimension Data, providing dedicated onsite Wintel technical support for enterprise clients. I specialized in Windows Server administration and troubleshooting, where I developed strong problem-solving skills in complex enterprise environments.

In this role, I managed server infrastructure with a focus on reliability and performance optimization. I implemented system upgrades and patches to maintain security and performance while collaborating closely with client IT teams to align support services with their business requirements. This foundation in systems engineering gave me invaluable insights into enterprise IT operations that continue to inform my cloud architecture work today.

Earners of this badge passed the AWS Certified AI Practitioner exam by February 15, 2025 and are an Early Adopter of this certification.

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Certified FinOps Practitioners have demonstrated a working knowledge of the Principles, Capabilities and Fundamentals of FinOps, a prescriptive model of actions, best practices and culture enabling business, IT and Finance. These professionals make evidence-based decisions in near-real time to manage cloud use and increase business value.

A Certified SAFe® 6 Agilist (SA) is a SAFe® Enterprise leadership professional who leads and sustains the Lean-Agile transformation. Key areas of competency include the application of Lean-Agile mindset and principles, the release of value through Agile Release Trains (ARTs), and building an Agile portfolio to align strategy and execution.

Earners of this certification have the ability to design and maintain network architecture for all AWS services. They demonstrated the ability to leverage tools to automate AWS networking tasks based on business needs. Badge owners are able to design and implement AWS and hybrid IT network architectures at scale.

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