Cleber Vitorio
Analyst
34+ years exp
Node JS
COBOL
C#
SQL
JavaScript
UX & Visual Polish: 4/10
Active 9 days ago
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Overview
Technical skills
Timeline
Roles
Overview
Frontend UI-focused developer (junior level) who builds polished static websites using semantic HTML and CSS; the strongest proven skill is producing consistent responsive layouts and visual polish using CSS variables and grid as shown in the base.css and multiple page templates; there is no evidence of modern SPA architecture, advanced client-side state management, automated testing, or performance instrumentation in public code.
Technical skills
Node JS
COBOL• Senior • 34y+
C#• Middle • 8y+
SQL• Middle
JavaScript• Junior
COBOL
VSAM• 16y+
CICS• 14y+
JCL• 14y+
Endevor• 4y+
Databases
Db2• 16y+
Oracle• 16y+
PostgreSQL• 8y+
Frontend
Frontend
Mobile
Concepts
DevOps
Rest API
Docker• 8y+
Timeline
System Analyst and COBOL Developer
•
Middle
Aubay
•
Full-Time
Supported and maintained BNP Paribas legacy applications in Algeria. Performed testing and validation of COBOL program changes in UNIX-based environments and documented defects and resolutions using Agile and ITIL practices. Executed job scripts in DEV and QA, analyzed production-generated business information, and coordinated deployments with teams in France.
COBOL
SQL
JCL
VSAM
Oracle
Db2
System Analyst and COBOL Developer
•
Middle
Inetum
•
Full-Time
Analyzed, tested, and maintained COBOL programs that generate XML reports for the German finance department. Validated mainframe changes in ZOS, documented issues, and tracked resolutions for business-requested queries. Coordinated deployments with teams in Portugal and Germany and worked across DEV/QA environments for reliable release readiness.
COBOL
JCL
CICS
VSAM
Oracle
Db2
Jira
System Analyst and COBOL Developer
•
Middle
EVP
•
Full-Time
Performed system analysis and testing for ZOS-based COBOL applications. Reported and coordinated remediation of defects, managed module installations, and supported QA compliance for releases. Worked with mainframe development and validation activities using end-to-end testing and change tracking workflows.
COBOL
Endevor
JCL
CICS
VSAM
Oracle
Db2
Jira
Tech Leader
•
Lead
SIS
•
Full-Time
Managed task distribution and time tracking in Jira and reported progress during Agile ceremonies. Led process mapping sessions with developers and business stakeholders from Bradesco Assurance. Supported delivery planning and coordination for mainframe-focused development activities and ongoing quality control.
JCL
CICS
VSAM
Oracle
Db2
Endevorsince 2022
Jirasince 2022
System Analyst and COBOL Developer
•
Middle
Capgemini
•
Full-Time
Led process validation activities, supported developer training, and performed ongoing maintenance of legacy systems. Analyzed and implemented changes related to digital account systems and validated impact on existing integrations. Worked with mainframe environments to ensure updates were delivered correctly and supported production readiness.
COBOL
JCL
CICS
VSAM
Oracle
Db2
System Analyst and COBOL Developer
•
Middle
Meta
•
Full-Time
Conducted system analysis and testing for COBOL workloads across ZOS and VSE environments. Collaborated with global teams, including U.S. counterparts, to align deployment activities. Supported integration readiness and verification of system behavior during releases.
COBOL
Oracle
Db2
System Analyst and COBOL Developer
•
Middle
Atos
•
Full-Time
Designed, developed, and maintained COBOL programs for Volkswagen core systems within Agile teams. Supported feature work and integrations by coordinating implementation changes and validating outcomes. Worked with mainframe environments to ensure continued system correctness and compatibility.
COBOL
Endevor
JCL
CICS
VSAM
Oracle
Db2
System Analyst and COBOL Developer
•
Middle
Datainfo
•
Full-Time
Managed development projects and performed system maintenance and team training for legacy systems. Coordinated integrations between mainframe components and SAP alongside related database improvements. Worked with a mixed technology stack including COBOL, Oracle, C#, and modern data tools to support reliable application evolution.
COBOL
C#
Oracle
PostgreSQL
Docker
System Analyst and COBOL Developer
•
Middle
Volvo
•
Full-Time
Maintained and enhanced legacy mainframe systems and databases for ongoing business operations. Collaborated with database administrators and configuration teams to optimize the mainframe environments and support stable deployments. Supported system development and integration activities with Agile processes and QA governance.
JCLsince 2012
CICSsince 2012
Oracle
Db2
System Analyst and COBOL Developer
•
Middle
Meta IT
•
Full-Time
Led analysis, validation, and developer training activities for legacy systems used by a medicines distributor. Provided end-user training and maintained documentation for legacy functionality and workflows. Supported system validation with mainframe-oriented tooling and data formats used for integrations.
COBOLsince 2010
Oraclesince 2010
VSAMsince 2010
Db2since 2010
Junior Frontend Developer
Confidence: Medium UI Engineer
Frontend UI-focused developer (junior level) who builds polished static websites using semantic HTML and CSS; the strongest proven skill is producing consistent responsive layouts and visual polish using CSS variables and grid as shown in the base.css and multiple page templates; there is no evidence of modern SPA architecture, advanced client-side state management, automated testing, or performance instrumentation in public code.
UI Component Architecture
2/10
How interface parts are built
Basic component-like structure and CSS tokens exist but there is no deliberate component architecture, composition system, or custom lifecycle hooks.
Responsive & Cross-browser
3/10
Works on all screens and browsers
Responsive layout techniques are used (CSS Grid and auto-fit), and normalize.css is included, but there is no evidence of advanced cross-browser feature detection or RTL/i18n readiness.
Performance Optimization
1/10
Speed of the interface
Minimal performance work; only trivial optimizations (for example a lazy-loading iframe) are present and no measured optimizations, bundling or code-splitting strategies are visible.
Accessibility & Semantics
3/10
Usable for everyone
Good basic semantic HTML and form structure with alt attributes, fieldsets and labels, but no evidence of ARIA on custom widgets, focus management, or automated a11y checks.
State Management & Data Flow
1/10
Managing data in the app
No observable client-side state discipline, cancellation, optimistic updates, or state machines; pages use simple HTML form navigation between steps.
UX & Visual Polish
4/10
Look and feel quality
Visually polished static UI with consistent tokens, hover states, and layout attention which is strong for brochure sites but lacks advanced UX features like skeletons, undo, or perceived-performance patterns.
Expertise
HTML & CSS• Junior
Technologies
Frontend
JavaScript• Junior
Recommendations
- Build responsive brochure and marketing sites, landing pages and multi-step HTML form flows.
- Implement component-driven UI with a lightweight component system or template partials to reduce duplication (header/footer reuse, shared CSS tokens).
- Focus on accessibility improvements and simple client-side enhancements such as focus management, ARIA for any custom widgets, and lightweight progressive enhancement.
Repositories
The developer's experience in this domain has been verified based on AI analysis of the following repositories:
Intern Backend Developer
Confidence: High Generalist
Student C# and JavaScript developer (intern) focused on algorithmic coursework and small web scripts. The strongest proven skill is algorithmic problem solving and implementing data-structure/recursion solutions as shown in clebervitorio/cse212/week05/code/Recursion.cs and clebervitorio/cse212/week04/code/LinkedList.cs. No production backend, database work, authentication, or service-level architecture is evidenced in the public code.
API Design
1/10
How well APIs are designed
Minimal API usage is present (client-side fetch) but no API design, versioning, error contract or server-side API work.
Data Layer & Database
Working with databases
Not evidenced in public code
Scalability & Performance
2/10
Handling load and speed
Some algorithmic performance awareness and O(n) expectations are present in tests and a memoized recursive solution, but no production-scale scalability work.
System Architecture
1/10
Overall system structure
Small, sensible module separation for coursework and client-side modules but no deliberate service decomposition or config/secret management for production systems.
Evidence
clebervitorio/cse340/scripts/course.js: imports local module '../data/coursesinfo.js' and separates UI logic
repository folder structure cse212/weekXX: separate modules for assignments and tests
Security & Auth
Protecting data and access
Not evidenced in public code
Reliability & Observability
2/10
Stability and monitoring
Unit tests and timeouts show some reliability thinking; basic client-side error handling exists, but there is no structured logging, metrics, retries with backoff or graceful shutdown logic.
Evidence
clebervitorio/cse212/week03/code/SetsAndMaps_Tests.cs: unit tests with Timeout attributes and performance checks
clebervitorio/cse212/week05/code/Recursion_Tests.cs: comprehensive unit tests for recursion code
clebervitorio/cse340/scripts/scripts-directory.js: try/catch and response.ok handling for fetch
Expertise
Node.js• Intern
Industries
Education• Intern
Technologies
SQL• Middle
C#• Middle • 8y+
Node JS
COBOL• Senior • 34y+
PostgreSQL• 8y+
Rest API
Db2• 16y+
Oracle• 16y+
Docker• 8y+
CICS• 14y+
VSAM• 16y+
JCL• 14y+
Endevor• 4y+
Recommendations
- Assign to algorithmic exercises, data-structures work and educational tooling (unit-test driven tasks and grading helpers).
- Give frontend feature tasks that use JavaScript fetch and DOM manipulation (small UI components and data display).
- Pair with a backend engineer for API design and database work to build experience in auth, migrations and production reliability.
Repositories
The developer's experience in this domain has been verified based on AI analysis of the following repositories:
Intern Mobile Developer
Confidence: Low Generalist
Kotlin learner at intern level focusing on language fundamentals and basic scripting. The strongest proven skill is core Kotlin syntax and control flow demonstrated in learningKotlin/src/main/kotlin/Main.kt. There is no evidence of mobile app architecture, Android or iOS lifecycle handling, background sync, device integration, or CI/release pipelines in public code.
Platform Native Mastery
Knowing the mobile platform
Not evidenced in public code
Mobile UI/UX & Responsiveness
Smooth mobile experience
Not evidenced in public code
Performance & Battery
Speed and battery use
Not evidenced in public code
Offline & Data Sync
Working offline and syncing
Not evidenced in public code
Device Integration
Using device features
Not evidenced in public code
Release & App Lifecycle
Building and publishing apps
Not evidenced in public code
Technologies
Concepts
Recommendations
- Develop small Kotlin console utilities and exercises to strengthen fundamentals and idiomatic Kotlin usage (use the existing Main.kt as a baseline).
- Follow an entry-level Android tutorial to build a simple app that exercises lifecycle, ViewModel and state restoration so mobile platform skills can be proven.
- Build a small offline-enabled sample (Room or simple file-based cache) with basic retry logic and a migration to demonstrate data persistence and sync readiness.
Repositories
The developer's experience in this domain has been verified based on AI analysis of the following repositories: