Waseem (Waseem) Sattar-Enterprise Solution Architect | 5G / Mobile Communications | Mission Critical Services (MCx) | IMS and SIP
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Experience
Solution Architect – FRMCS & Digital Transformation in the Rail Sector
Freelance Enterprise & Solution Architect
Responsible for the architecture and strategic direction of the Future Railway Mobile Communication System (FRMCS) in the international rail environment. Managing architecture activities, requirements management, stakeholder alignment, and standardization bodies.
Key contributions
- Definition of the end-to-end system architecture for FRMCS across transport, core, service, and operations domains.
- Creation of target architectures, architecture roadmaps, and operating models.
- Conducting architecture workshops and technical governance with international stakeholders.
- Creation of architecture diagrams, integration concepts, requirements specifications, and technical roadmaps.
- Design of an event-driven OSS architecture for future operations processes.
- Consulting on topics such as QoS, security architecture, API integration, cloud-native deployment, and interoperability.
Solution Architect – 5G Security & Future Networks
Freelance Enterprise & Solution Architect
Consulting and architecture support for new 5G security requirements, API ecosystems, open gateway initiatives, and future network technologies
Enterprise Solution Architect – Private 5G Platform
NTT DATA Deutschland
Responsible for the architecture, integration, testing, commissioning, and handover to operations of a fully containerized private 5G platform. Main technical contact for customers and project teams.
Key contributions
- End-to-end responsibility for the project lifecycle from architecture to production operation.
- Development of a scalable Kubernetes-based cloud-native architecture.
- Coordination of technology partners, infrastructure suppliers, and customer representatives.
- Leadership of installation, integration, testing, and acceptance activities.
- Definition of network, routing, VLAN, and deployment architectures.
Technical Lead – Test Automation & DevOps
NTT DATA Deutschland
- Development of solution approaches and technical proposals for customers.
- Conducting requirements workshops and architecture presentations.
- Integration of automated tests into Jenkins-based CI/CD pipelines.
- Supporting customers through technical acceptance and rollout
Senior Consultant / Enterprise Solution Architect
Sopra Steria Consulting
Led multiple transformation programs for international telecommunications companies with a focus on OSS modernization, SDN introduction, data migration, cloud transformation, and integration architectures
Key contributions
- Development of target architectures and strategic architecture roadmaps.
- Creation of high-level and low-level designs for business-critical systems.
- Planning and management of complex data migration and integration programs.
- Definition of strategies for SDN, NFV, and cloud transformations.
- Conducting impact analyses, architecture reviews, and stakeholder management.
- Design of data anonymization, encryption, and secure data exchange methods.
System Engineer / Technical Lead
Tieto Deutschland GmbH
Responsible for OSS, fulfillment, provisioning, integration, and test automation solutions at international telecommunications providers
Key contributions
- Technical subject matter expert for OSS fulfillment and operational support solutions.
- Customer-facing work for installation, integration, and troubleshooting on site.
- Responsible for test planning, commissioning, and production support.
- Development and integration of adapters and middleware components.
- Carrying out system tests, acceptance tests, and root cause analysis
Industry Experience
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Experienced in Telecommunication and Information Technology.
Business Area Experience
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Experienced in Information Technology, Operations, Strategy, Quality Assurance, and Project Management.
Summary
Freelance Solution Architect and Subject Matter Expert with over 17 years of experience in mobile and fixed-line telecommunications, as well as IT-side platform integration (microservices, API gateways, databases, Linux infrastructure) - TOGAF Certified Enterprise Architect (No. 123381).
Focus areas: FRMCS, 5G (radio, transport, core) and Mission Critical Services (MCPTT, MCData, MCVideo, MCx security and QoS management). Responsible for the full FRMCS system definition for an international rail transport provider as the master document for all downstream requirements specs; active representation of the customer in the standardization bodies of ETSI and UIC; currently responsible in the EU project MORANE-2 for TOBA requirements and test specifications.
OSS transformation: design of an event-driven, containerized OSS architecture to replace legacy silos, including a gap analysis from GSM-R to FRMCS and support for parallel operation of both domains. Architect and technical project lead for the cloud migration of the OSS landscape (cloud native, Domain Driven Design, Kubernetes, DevOps).
Integration and data: coordination of interfaces across vendors (MTOSI, TM Forum SID, REST/OpenAPI), introduction of a vendor-agnostic SDN infrastructure in the transport network, and design of CDR data integration from the data center into Google Cloud Platform, including anonymization and encryption.
Roadmap and rollout: creation of requirements specs, pricing models and suitability criteria for large-scale tenders as well as end-to-end planning, design and commissioning of EPC sites, VoLTE, SRVCC and IPv6.
Business-fluent in German and English, experienced in Europe-wide, cross-cultural project work.
Skills
Solution Architect
Enterprise & Solution Architecture (Togaf)
5g
Mission Critical Services (Mcx)
Frmcs & Rail Communications
Oss (Operation Support System)
Standardization & Committee Work
5g / Mobile Communications
Mobile Security (3gpp Sa3) Satellite Communications/Ntn · Acme · Non-3gpp Roaming · Prose (D2d) · Mpquic / Mptcp · Ranging & Sl Positioning (V2x) · Security Analysis Of New 3gpp Developments
5g Apis & Exposure Capif (3gpp Common Api Framework) · Camara · Gsma Open Gateway · Rest, Openapi, Tmf Open Apis
Data Architecture & Data Integration
Event-Driven Architecture
Microservices & Domain Driven Design (Ddd)
Cloud-Native & Hybrid Cloud Solutions
Requirements Engineering
Api And System Integration
Devops & Ci/Cd
Data Migration & Data Governance
Linux/Unix Platforms
Technical Leadership & Coaching
Digital Transformation
Architecture
Togaf Enterprise Architecture
Solution Architecture
Data Architecture
Integration Architecture
Cloud Architecture
Domain Driven Design (Ddd)
Distributed Systems
Microservices
Event-Driven Architecture
Api-First Design
High Availability
Scalable Platforms
Enterprise Integration
Cloud & Devops
Kubernetes
Docker
Jenkins
Git
Ci/Cd Pipelines
Devops
Infrastructure Automation
Data & Integration
Data Architecture
Data Migration
Data Integration
Data Governance
Data Validation
Data Anonymization
Data Management
Technologies
Oss/Bss
Sdn
Nfv
5g
Frmcs
Ims
Rest
Openapi
Wso2 Api Manager
Oracle
Mysql
Operating Systems
Linux
Red Hat Enterprise Linux
Ubuntu
Centos
Unix Administration
Shell Scripting
Languages
Education
University of Central Punjab
Master of Computer Science · Computer Science · Pakistan
University of Applied Sciences Mittelhessen
Master of Information and Communication Engineering · Information and Communication Engineering · Germany
Certifications & licenses
Statistics
Experience
Global Experience
Expertise
Qualifications
Profile
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Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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