Marlon Sealy
Hololo Road,Santa Cruz
Summary
Experienced IT Consultant with over twenty years of experience in Information Technology. Excellent reputation for resolving problems and improving customer satisfaction. Dedicated professional with history of meeting company goals utilizing consistent and organized practices. Skilled in working under pressure and adapting to new situations and challenges to best enhance the organizational brand.
Overview
25
25
years of professional experience
1
1
Certification
Work history
Solutions Architect - Digital Delivery Unit
Ministry of Digital Transformation -MDT/MPA-AI
Port of Spain
08.2023 - Current
- Review and comment on Vendor RFPs and engagement of stakeholders on RFP review outcomes.
- Creation of change management strategies for key Digitization initiatives at Government agencies.
- Documented Benefits realization plan for various digitization projects.
- Shortlisting of candidates for key IT roles at Registrar General Department.
- Provided estimates to Project Team for hardware and license procurement costs.
- Deployed interoperability platform for connectivity between various Government Ministries using X-Road Framework.
- Installed and performed vulnerability assessment tools such as Nessus Tenable.
- Review and provide oversight for TT-CSIRT vulnerability assessment as well as third Party Penetration Testing. Analysed assessment report and performed corrective actions where applicable.
- API configuration, testing and deployment for zero knowledge proof identity verification service.
- Technical expertise for Electronic Identification and Digital Wallet projects including, testing and creation of architectural design documentation.
- Deployment of virtualized platforms such as XCP-ng.
- Developed data migration strategy, and cutover plan for Properties Management System at Registrar General's Department, inclusive of data migration scripts for extraction from legacy source Oracle database, column mapping for target database structure, data cleansing and transformation and loading to target Microsoft SQL Server database.
- Created data migration KPIs and Audit reports for review and validation by revenue teams.
- Demonstrated expertise in cloud-based technologies whilst managing multiple projects.
- Performed system analysis, proposed improvements to increase efficiency.
- Streamlined operational processes with innovative software solutions.
- Collaborated with cross-functional teams to ensure project success.
Technical Cutover and Migration Lead
InfoGlobalTech
5 Concourse Parkway Suite 3000, Atlanta, GA 30309, USA
04.2023 - 11.2024
- Transition and cutover team lead for CSG projects shapes - CSG and Digicel Billing transformation for 25 Digicel Markets in the Caribbean and Latin America.
- Report on transition and migration progress to project executive teams including RAG assessment reports and analyst of open azure DevOps tickets.
- Deployment planning of all target system components as well as legacy coexistence systems. Inclusive of Digital Convergent Billing, CRM, Online Charging OCS, Customer Experience Self-care and eShop, Network Policy, USSD and Voice Control (SCP), Payment Management (Gateway), Network and Resource Inventory-Geographic Serviceability, APIM - API Management.
- Created migration and cutover plan and conducted review sessions and project planning with deployment teams as well as executive stake holders.
- Created reusable cutover and deployment templates for Market rollout strategy.
- Performed and created Integration assessment document to determine and plan what integrations were required for each deployment phase.
- Performed infrastructure assessment and planning to determine environment readiness for scheduled software releases.
- Determined and listed the required physical connections to ensure the systems are accessible and functioning.
- Identified components that required migrated data for the components in the Target Solutions.
- Documented backup recovery plans with all components and ensure a business agreed solution is in place.
- Created run book of all activities for Software Deployment including the below (Target software component technical readiness - Execution of software deployments task, Data migration, Back up procedures, Post software deployment tasks).
- Planned migration schedule for dry runs, friendly users and production cohorts.
- Managed and documented deployment releases in UAT, Migration, Hardening, Maintenance and Production environments.
- Production validation and verification report and KPIs of Migrated data
- Created Post Migration plan and roll back procedure.
IT Consultant, OSS/BSS
Telecommunications Services of Trinidad and Tobago
05.2015 - 03.2025
- Technical team lead for several key strategic projects such as LTE, WTTX, Mobile and Residential Billing application deployment projects.
- Provide insight and respond to queries from internal and external auditors, including drafting responses to management letters.
- Technical liaison between Business and over ten Third Party vendors.
- Configuration and testing of SOAP and REST APIs for services such as mobile billing application, Mobile TV and Third Party Top Up applications.
- Implementation of monitoring scripts using Zabbix monitoring tools.
- Developed and implemented policies, procedures, training and development for applications.
- Review and maintain vendor software maintenance contracts and licenses.
- Estimated costs of new systems, modifications and updates.
- Identified current inefficiencies and recommended changing functionality.
- Followed regulations and policies regarding proper ICT system usage and administration.
- Application support for BSS systems Redknee/Optiva and Ericsson.
IT Application Architect
Telecommunications Services Of Trinidad And Tobago
09.2008 - 03.2015
- Successfully managed architecture deliverables including principles, capability map, transversal process, integration catalogue, information model, application map and reference architectures.
- Created process maps, customer journeys and usecases documentation for Mobile Billing application transition.
- Answering technical and procedural questions for less experienced team members; teaching improved processes; mentoring team members.
- Liaised with key stakeholders to translate technical needs into product development strategies.
- Documented standard development procedures and trained new personnel on requirements.
- Partnered with engineering team on successful interfaces and integration between Billing Applications and Mobile Network interfaces.
- Conducted rigorous root-cause analyses and investigations to identify and correct software issues.
IT Analyst
Telecommunications Services Trinidad And Tobago
09.2005 - 08.2008
- Partnered with users to understand and define system requirements. Provided system analysis and support for major software upgrades and data migration projects.
- Developed and implemented system testing plans in support of deployments.
- Monitored system performance using recognised and agreed criteria.
Computer Operator
Telecommunications Services Of Trinidad And Tobago
03.2000 - 08.2005
- Provided customer support remotely or onsite as required, solving technical queries efficiently.
- Managed user accounts and permissions for secure access controls.
- Performed routine checks on computer systems, maintaining optimal functionality.
- Resolved technical issues swiftly to minimise disruption to daily operations.
- Troubleshoot and configure network switches and ports and mobile service centers,
Education
Bachelor of Science - Computer Science
University of Greenwich
Higher Diploma - Information Systems Management
Institute For The Management of Information System
Skills
- Forecasting and planning
- Risk assessment
- System and Application user administration
- Data Migration
- IT Project Management
- IT Audit experience
- Business recovery and sustainability
- Business analysis
- Capacity and scalability planning
- Programming and design skills
- Optimizing and performance tuning
- Strategic planning and review
Certification
IOP Service Developer,
IOP Security Server Administration,
Visual Basic; VBA; Oracle PL/SQL; Unix Shell Scripting.
Oracle Solaris Software:
Visual Studio
Tableau,
Microsoft Dynamics
Mulesoft
Pascal, Javascript, Unix, Microsoft Office Suite
ITIL
Timeline
Solutions Architect - Digital Delivery Unit
Ministry of Digital Transformation -MDT/MPA-AI
08.2023 - Current
Technical Cutover and Migration Lead
InfoGlobalTech
04.2023 - 11.2024
IT Consultant, OSS/BSS
Telecommunications Services of Trinidad and Tobago
05.2015 - 03.2025
IT Application Architect
Telecommunications Services Of Trinidad And Tobago
09.2008 - 03.2015
IT Analyst
Telecommunications Services Trinidad And Tobago
09.2005 - 08.2008
Computer Operator
Telecommunications Services Of Trinidad And Tobago
03.2000 - 08.2005
Bachelor of Science - Computer Science
University of Greenwich
Higher Diploma - Information Systems Management
Institute For The Management of Information System
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