Diogo Abecassis

Diogo Abecassis

IT Analyst | Cybersecurity | Networking

Araçatuba, São Paulo, Brazil
148 connections

About

Information Technology professional with approximately 20 years of experience in Telecommunications and IT, currently serving as a Senior Information Technology Analyst at Tilabras.

I have been recognized for driving operational excellence and implementing technical solutions that meet business needs, showcasing strong skills in project management, systems analysis, network security, and infrastructure management.

Recently, I redirected my career to the dynamic field of cybersecurity, obtaining certifications recognized by Google, IBM, INFOSEC, CompTIA, and Microsoft, enhancing my expertise in this crucial domain.

My passion for technology and my commitment to continuous learning empower me to tackle complex challenges and contribute significantly to the organization's security and operational efficiency.

Contributions

Experience

  • Tilabras Graphic

    Senior Information Technology Analyst

    Tilabras

    - Present 5 months

    Buritama, São Paulo, Brasil

    Project Management:

    • Lead and manage large-scale IT projects from planning to implementation and delivery phases.
    • Define project scope, schedule, budget, and team.
    • Monitor project progress and ensure it stays on schedule and within budget.
    • Resolve issues and make critical decisions to ensure project success.
    • Effectively communicate with stakeholders and clients to ensure project satisfaction.

    Systems Analysis:

    • Gather and analyze business requirements…

    Project Management:

    • Lead and manage large-scale IT projects from planning to implementation and delivery phases.
    • Define project scope, schedule, budget, and team.
    • Monitor project progress and ensure it stays on schedule and within budget.
    • Resolve issues and make critical decisions to ensure project success.
    • Effectively communicate with stakeholders and clients to ensure project satisfaction.

    Systems Analysis:

    • Gather and analyze business requirements to identify improvement opportunities.
    • Develop and document functional and technical specifications.
    • Design and implement software solutions that meet business needs.
    • Test and validate software solutions to ensure quality.

    Network Security:

    • Implement and manage network security policies to protect company data.
    • Monitor and detect malicious activities on the network.
    • Investigate and resolve security incidents.
    • Stay updated on the latest security threats and vulnerabilities.

    Infrastructure Management:

    • Plan, install, configure, and manage the company's IT infrastructure.
    • Monitor infrastructure performance and identify optimization opportunities.
    • Resolve hardware and software issues.
    • Stay updated on the latest IT technologies.

    User Support:

    • Provide technical support to company users.
    • Resolve hardware and software issues.
    • Train users on new software and systems.
    • Document solutions for common problems.

  • TELUS International AI Data Solutions Graphic

    Data Analyst

    TELUS International AI Data Solutions

    - 7 months

    - Responsible for enhancing the quality and content of globally used digital maps.
    - Research, evaluation, and enhancement of digital maps.
    - Tasks include data verification and compliance with guidelines.

  • Web Developer/ Web Designer/E-commerce Specialist

    Grupo AKISYM - Negócios Digitais

    - 4 years

    • Branding and Brand Creation
    • E-commerce Store Creation
    • Web Page Design and Development
    • Digital Marketing
    • Social Media Management
    • Logo Creation
    • Image/Video Editing

  • AR.TELECOM Graphic

    Technical Support/Telecommunications Network Supervision

    AR.TELECOM

    - 5 years 2 months

    Lisbon

    Resolve technical-level issues for Business clients in initial contact, including:

    • Configuration of Cisco, Juniper, Watchguard, Mikrotik equipment; Static routing, dynamic routing, VPNs (IPSEC, PPTP); Firewall, NAT; VLANs, EoIP, MPLS, OSPF, BGP
    • Troubleshooting DNS
    • Troubleshooting IP issues
    • Management of Windows Server and Linux servers (basic level)
    • Configuring VoIP equipment (phones and telephone systems)
    • Alarm management; Troubleshooting faults
    •…

    Resolve technical-level issues for Business clients in initial contact, including:

    • Configuration of Cisco, Juniper, Watchguard, Mikrotik equipment; Static routing, dynamic routing, VPNs (IPSEC, PPTP); Firewall, NAT; VLANs, EoIP, MPLS, OSPF, BGP
    • Troubleshooting DNS
    • Troubleshooting IP issues
    • Management of Windows Server and Linux servers (basic level)
    • Configuring VoIP equipment (phones and telephone systems)
    • Alarm management; Troubleshooting faults
    • Monitoring critical tasks (interpreting diagrams of implemented solutions)
    • Network supervision

  • Portugal Telecom Inovação, SA

    Portugal Telecom Inovação, SA

    2 years

    • Portugal Telecom Inovação, SA Graphic

      Critical Systems Monitoring

      Portugal Telecom Inovação, SA

      - 1 year 3 months

      Lisbon

      • Monitoring of critical TMN and PTC systems,
      • Interventions in TMN & UZO platforms,
      • UNIX and SOLARIS systems,
      • Installation of application packages in Production and QA environments,
      • Monthly wireless and wireline releases,
      • Automation of critical systems and processes,
      • Internal application unavailability.

    • Portugal Telecom Inovação, SA Graphic

      Service Desk - Applicational Support

      Portugal Telecom Inovação, SA

      - 10 months

      Lisbon

      • Supporting PTP for systems with SAP, BMC Remedy, Siebel, UNIX, ORACLE databases
      • CRM, Informix, and DB2 technologies
      • Development in PHP and Shell Script

  • Portugal Telecom Graphic

    Network/Telecommunications Technician

    Portugal Telecom

    - 2 years

    Lisbon

    • Supporting field technicians in installations and repairs for MEO/ADSL/Fiber;
    • Troubleshooting MEO/copper and fiber faults;
    • Distribution of faults;
    • Preventive faults;
    • Common faults;
    • Configurations of Alcatel, Siemens, and Lucent Dslam's;
    • Manual MPLS configurations;
    • Manual configurations of IPTV, Bitstream, and ADSL ports;
    • Manual BBRAS configurations;
    • Manual provisioning of MEO STB's;
    • Reconfiguration of MEO Client accounts.
    • Ont…

    • Supporting field technicians in installations and repairs for MEO/ADSL/Fiber;
    • Troubleshooting MEO/copper and fiber faults;
    • Distribution of faults;
    • Preventive faults;
    • Common faults;
    • Configurations of Alcatel, Siemens, and Lucent Dslam's;
    • Manual MPLS configurations;
    • Manual configurations of IPTV, Bitstream, and ADSL ports;
    • Manual BBRAS configurations;
    • Manual provisioning of MEO STB's;
    • Reconfiguration of MEO Client accounts.
    • Ont registration/configuration on OLT
    • Support in the room
    • Switching
    • Logical maintenance of the core network PTC, Meo, Sapo, and PtPrime.
    • Configuration and administration of FTTH, IPTV, GPON, xDSL, BitStream, and ISDN services and systems.
    •Logical management of telecommunications equipment such as BBRAS, MPLS Switch-Router's,
    •Configurations in Siemens (EWSD) and Alcatel (S12) digital switching systems.
    •Administration and maintenance of Huawei, Alcatel-Lucent, and PTInovação OLT's.

  • Vodafone Portugal Graphic

    Customer Technical Support Assistant

    Vodafone Portugal

    - 1 year 6 months

    Lisbon

    - Technical customer support hotline, including the resolution of technical issues.
    - Assistance to Field Service technicians during the installation of services at customer residences/businesses.
    - DNS service management to ensure connectivity and proper functionality.
    - Configuration of emails, Outlook, Incredimail, and other related applications.
    - Provision of technical support to customers through technical troubleshooting.
    - Resolution of faults related to ADSL…

    - Technical customer support hotline, including the resolution of technical issues.
    - Assistance to Field Service technicians during the installation of services at customer residences/businesses.
    - DNS service management to ensure connectivity and proper functionality.
    - Configuration of emails, Outlook, Incredimail, and other related applications.
    - Provision of technical support to customers through technical troubleshooting.
    - Resolution of faults related to ADSL services.
    - Execution of Backoffice processes to ensure operational efficiency.
    - Proactive customer follow-up to ensure continuous satisfaction.
    - Resolution of specific technical issues for business clients.
    - Handling of specialized lines for more complex cases.
    - Proficient use of various management applications and monitoring of service quality for customers.

Education

  • Google Cloud Skills Boost

    Certificação Google - Generative AI for Developers

    -

    Generative AI for Developers - IA generativa com foco técnico, construído para desenvolvedores de aplicativos, engenheiros de ML e cientistas de dados.


    • Introduction to Image Generation
    • Attention Mechanism
    • Encoder-Decoder Architecture
    • Transformer Models and BERT Model
    • Create Image Captioning Models
    • Introduction to Generative AI Studio
    • Generative AI Explorer - Vertex AI
    • Explore and Evaluate Models using Model Garden
    • Prompt Design using PaLM

  • Google Cloud Skills Boost

    Certificação Google Introduction to Generative AI

    -

    Introdução abrangente a generative AI, incluindo os diferentes tipos de generative AI, como eles funcionam e como podem ser usados.

    Módulos:

    • Introduction to Generative AI: Uma introdução a generative AI, explicando o que é, como funciona e como pode ser usado.

    • Introduction to Large Language Models: Uma introdução a large language models, explicando o que são, como funcionam e como podem ser usados.

    • Introduction to Responsible AI: Uma introdução a responsible…

    Introdução abrangente a generative AI, incluindo os diferentes tipos de generative AI, como eles funcionam e como podem ser usados.

    Módulos:

    • Introduction to Generative AI: Uma introdução a generative AI, explicando o que é, como funciona e como pode ser usado.

    • Introduction to Large Language Models: Uma introdução a large language models, explicando o que são, como funcionam e como podem ser usados.

    • Introduction to Responsible AI: Uma introdução a responsible AI, explicando a importância de usar AI de forma responsável.

    • Generative AI Fundamentals: Um curso aprofundado sobre os fundamentos de generative AI.

    • Responsible AI: Applying AI Principles with Google Cloud: Um curso sobre como aplicar princípios de responsible AI no Google Cloud.

  • Citeforma Institute

    Technical Degree Computer Science

    -

    Specialization Course Level 5, 2650 hours divided into modules consisting of the following subjects:

    • General and Scientific Training
    • Oral and Written Expression Techniques
    • Technical English
    • Human Behavior in Organizations
    • Law and Professional Ethics
    • Project Methodology
    • Technological Training
    • Discrete Mathematics Computer
    • Systems Architecture
    • Operating Systems and Distributed Systems
    • Systems Programming
    • Network…

    Specialization Course Level 5, 2650 hours divided into modules consisting of the following subjects:

    • General and Scientific Training
    • Oral and Written Expression Techniques
    • Technical English
    • Human Behavior in Organizations
    • Law and Professional Ethics
    • Project Methodology
    • Technological Training
    • Discrete Mathematics Computer
    • Systems Architecture
    • Operating Systems and Distributed Systems
    • Systems Programming
    • Network Architectures and Telematic Services
    • Network and Computer Systems
    • Security Network and Systems
    • Administration and Management
    • Integrated Project in Networks and Computer
    • Systems Workplace
    • Training Calculus I Calculus II
    • Introduction to Informatics
    • Introduction to Programming

Licenses & Certifications

Projects

  • Cybersecurity Capstone: Breach Response Case Studies

    -

    The data breach at Equifax in 2017 was categorized as a
    massive data compromise resulting from a vulnerability in
    the Apache Struts web application framework.
    This incident exploited a known software vulnerability,
    emphasizing the critical importance of timely patching.
    According to cybersecurity reports, the Equifax breach
    compromised sensitive information of approximately 147
    million individuals.

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