Analista sistemas/ developer/ application support

Career Highlights
• Identify, predict and diagnose possible problems, providing solutions in order to prevent recurring errors.
• Responsible for the development of solutions that involved more complex programming logic
• Domain in IT Infrastructure, Programming Logic, Mathematics, Statistics and PL/ SQL, VBA, Shell, Python coding skill.
• Generated value to several teams ensuring credibility in identifying problems, deadlines and developing measures to improve the system and the dissemination of knowledge
• Invited by managers to teach internal courses in the areas of my specialty ( Programming Logic, Shell Script, Python and VBA ), thus contributing to the company's productivity increase, among other benefits.

• Conducted change management, applying the procedures in test / homologation envi-ronments for validation and subsequent application.
• Realized implementation of systems using Ctrl-M scheduler ( job creation ) as well as Shell Script (KSH) and Python development.
• Developed scripts with the aim of increasing productivity, efficiency and high availability
of systems and processes.
• Optimized processes ( tuning ), facilitating the use of solutions, saving time and generating
resource savings.
• Predicted and corrected possible faults in the system reducing the occurrence of service
interruptions, both in predicted maintenance windows and in unforeseen drops -
abends ( abnormal end ).
• Technologies used: BMP (Billing Mediation Platform) | Intermediate ( Measurement
Tool ) | S2B ( Switch to Bill - Revenue Assurance ) | Ranger ( Anti-Fraud System ) | Scripts
em KSH ( Korn Shell ) | BASH| AWK | SED, Python.

Achievements:
• Developed a "Backup Retention" system using the Circular Queue concept.
• Worked on an International Roaming system project that lasted over 24 hours, proposing
an strategic change that reduced the duration of the work from 24 hours for 20
minutes.

Analysed and developed scripts for surveying NetBackup Classes, with the purpose of
moving the site from Rio de Janeiro to Minas Gerais ( Brazilian cities ).
• Developed Excel Reports ( VBA ) of all data extracted by the scripts, related to the site
migration.
• Technologies used: Shell Script ( ksh, bash ) | AWK | PL/SQL | SED.
Achievements:
• Survey of all backup classes, via script, for the transfer of the entire Telemar site, from
Rio de Janeiro to Minas Gerais ( 2 different cities in Brazil ).
• Created search report scripts for all backup classes on the RJ Telemar site, in order to
ensure that the replication of the backup scenarios and data were performed safely to
the destination in MG, thus ensuring security and reliability in change.
Senior

• Executed system development in VBA regarding risk analysis
• Managed and maintained internal applications such as ERP and Warehouse Management
System.
• Designed and developed applications in VB.NET, C#, Web services using MSSQL database.
• Provided training and user manuals to operators of any new systems.

Taught Advanced Excel course with VBA to over 20 students including managers and
executives.

Conducted change management, applying the procedures in test / homologation environments
for validation and subsequent application.
• Analysed, developed and improved the processing jobs of the OI billing system (billing
system).
• Performed tasks as technical leader of billing production analysts’ team and acted as the
focal point between Production and Production Support (ongoing operations)
• Generated reports for billing management and revenue assurance
• Approved/disapproved new developments based on impact on billing cycle processing
time
• Provided support documentation and path of action for operations
• Participated in the decision-making process whether to stop or continue billing cycle
processing due to errors or low performance
• Analyzed root-cause and solved trouble tickets in Billing Business Investigation Unit;
• Technologies used: Unix shell scripts | Oracle PL/SQL | AWK.
Achievements:
• Developed coding logic to meet the demands of large volume data processing, resulting
in faster processing speed, both for data loading and for reporting.

Offered support using Shell Script, C++ and VBA development for monitoring link and
network devices (routers and switches) with ITO, NNM, Site Scope and MRTG.
• Worked with log analysis and interpreted logs of various operating systems
• Provided analysis with captured data that enhanced reporting, using Microsoft SQL.
• Developed and implemented a centralized data folder for all documented processes.
Achievements:
• In order to reduce the downtime of the services, I created monitoring jobs based on log
files, which facilitated the detection of system failures.

Analysed, developed and improved the processing jobs of Embratel's billing system.
• Managed Log Analysis regarding to Arbor ( skip-billing, pre and post cycle statistics,
checklists, dup-update, BIP, NF-NUMS, BIF ).
• Implemented development of Shell Script ( ksh and bash ) as well as support in VBA,
balancing logic for generating PL / SQL invoices.

Bachelor’s Degree in Computer Science