César Ballardini — Skill Keywords

Senior Software Developer · System Architect · Educator | Energy Grid & Power Systems | Vue.js · TypeScript · Python · GNU/Linux

Below is a partial list of keywords. Every one represents a component, skill, or activity with which I work or have worked. Feel free to contact me for documentation, details, or discussion on any subject listed.

Programming

Programming Languages

  • current: Python, TypeScript, JavaScript, SQL, Bash
  • past: C, Ruby, PHP, Smalltalk, Scheme, Prolog, Clipper

Programming Paradigms

  • topics: object-oriented programming, functional programming, logic programming, imperative programming, event-driven programming, message passing, closures, higher-order functions, unification, backtracking, pattern matching, recursion, polymorphism, encapsulation, inheritance
  • languages: Pharo Smalltalk (OOP), Racket Scheme (functional), SWI Prolog (logic), Python (multi-paradigm), TypeScript (multi-paradigm)

Programming Concepts

  • topics: data structures, algorithms, design patterns, type systems, static typing, dynamic typing, concurrency, asynchronous programming, promises, async/await, reactive programming, refactoring, code review, pair programming, test-driven development, unit testing

Frontend Development

Vue.js Ecosystem

  • components: Vue 3, Composition API, <script setup>, Single File Components, Vue Router, Pinia, Vuetify 3, Element Plus, Vite, Vitest
  • topics: reactivity, computed properties, watchers, composables, provide/inject, slots, emits, props, state management, store design, component architecture, lazy loading, code splitting

UI Libraries & Frameworks

  • components: Vuetify 3, Element Plus
  • topics: responsive design, material design, component libraries, form validation, data tables, dialogs, navigation drawers

Data Visualization

  • components: D3.js, Chart.js, Leaflet
  • topics: interactive charts, time series visualization, geospatial mapping, SVG, canvas rendering, bar charts, line charts, scatter plots, heatmaps, Gantt charts, map overlays, tooltips, zoom, pan

Web Standards

  • skills: HTML5, CSS3, SVG, responsive design
  • topics: SPA (Single Page Application), client-side routing, AJAX, REST API consumption, JSON, WebSockets, Server-Sent Events

Backend Development

Python

  • components: Python 3, Flask, SQLAlchemy, Alembic
  • topics: REST API design, request handling, middleware, error handling, logging, virtual environments, pip, package management, dependency management

API Design

  • topics: RESTful services, endpoint design, HTTP methods, status codes, pagination, filtering, sorting, authentication, authorization, token-based auth, Azure AD, MSAL, OAuth 2.0, API documentation, request/response patterns, error handling, validation

Databases

Relational Databases

  • components: PostgreSQL, MySQL, MariaDB, SQLite
  • topics: SQL, schema design, normalization, indexing, query optimization, joins, subqueries, views, stored procedures, triggers, constraints, foreign keys, transactions, ACID, database administration, backup and recovery, replication, performance tuning

Database Tools

  • tools: psql, pgAdmin, MySQL Workbench, DBeaver
  • topics: database migration, ETL, data import/export, SQL scripting

Infrastructure & GNU/Linux

GNU/Linux Systems

  • distributions: Debian, Ubuntu, CentOS, Red Hat Enterprise Linux
  • topics: system administration, package management (apt, yum, dpkg), kernel configuration, kernel parameters, systemd, init systems, service management, process management, cron, log management, file systems (ext4, XFS, NFS, Samba/CIFS), disk management, LVM, RAID, user management, permissions, ACLs, PAM, sudo, security hardening

Networking

  • services: DNS (BIND), DHCP, NIS, NTP, web proxy (Squid), reverse proxy, PAC (Proxy Auto-Configuration), firewalls (iptables, nftables), NAT, port forwarding, VPN
  • topics: TCP/IP, routing, switching, VLANs, subnetting, network troubleshooting
  • tools: tcpdump, wireshark, nmap, netstat, ss, traceroute, dig, ping

Email & Communication

  • components: Postfix, Sendmail, Dovecot, UUCP
  • topics: SMTP, IMAP, POP3, mail relay, spam filtering, virus detection, SPF, DKIM, DMARC, mailing lists, mail server administration, email security

Web Servers

  • components: Apache HTTP Server, Nginx
  • topics: virtual hosts, SSL/TLS, HTTPS, Let’s Encrypt, reverse proxy, load balancing, .htaccess, URL rewriting, access control, performance tuning, caching

Backup & Storage

  • components: Bacula, rsync, tar
  • topics: backup strategies, full/incremental/differential backup, tape storage, network backup, disaster recovery, backup rotation, restore testing, offsite backup

Automation & DevOps

Infrastructure as Code

  • tools: Ansible, Terraform
  • topics: configuration management, playbooks, roles, inventories, variables, templates (Jinja2), idempotency, convergence, desired state configuration, drift detection, infrastructure provisioning, state management, resource lifecycle, modules

Configuration Management

  • tools: Ansible, Puppet (legacy)
  • topics: centralized configuration, fleet management, configuration convergence, agent-based vs agentless, server provisioning, desktop provisioning, OS configuration, application deployment

CI/CD

  • components: GitLab, Jenkins, Docker
  • topics: continuous integration, continuous delivery, build pipelines, automated testing, artifact management, deployment automation, environment management, containerized builds

Version Control

  • tools: Git, GitLab, GitHub, Bitbucket
  • topics: branching strategies, merge workflows, pull requests, code review, repository management

Virtualization & Cloud

Virtualization & Containers

  • components: QEMU, libvirt, KVM, VirtualBox, VMware ESXi, vserver
  • containers: Docker, Docker Compose, container images, container registries
  • tools: Vagrant, virsh, virt-manager
  • topics: hypervisors (Type 1, Type 2), virtual machine management, snapshots, cloning, containerized applications, container orchestration, development containers, container-like virtualization (vserver), resource isolation, virtual networking, reproducible environments, test environments, development environments

Cloud Platforms

  • platforms: AWS, Digital Ocean, Tektonic
  • topics: cloud provisioning, virtual private servers, cloud storage, cloud networking, infrastructure scaling, cost management, cloud security, SSH key management

Energy Sector

Grid Operations & Power Systems

  • topics: transmission topology optimization, grid congestion analysis, transmission reconfiguration, grid reliability, emergency conditions, congestion bottlenecks, operational costs, power flow analysis, network redundancy, grid operations, electricity markets

SCADA & Utility Software

  • topics: SCADA (Supervisory Control and Data Acquisition), SCADA software evaluation and selection, utility management, meter reading systems, portable meter input systems, energy distribution, provincial power utility operations

Operating Systems

System Internals

  • topics: operating system design, microkernel architecture (MINIX 3), monolithic kernels, device drivers, file systems, interrupt handling (hardware and software), CPU scheduling, process management, memory management, inter-process communication, system calls
  • languages: C (kernel programming), assembler (x86)

Unix & Linux

  • systems: Debian GNU/Linux, Ubuntu, CentOS, RHEL, SCO Unix
  • topics: POSIX, shell scripting, system programming, kernel configuration, boot process, remote boot, PXE, network installation, custom installation media

Teaching & Training

University Courses Taught

  • courses: Programming Paradigms (Smalltalk, Scheme, Prolog), Operating Systems Design & Implementation (MINIX 3), Artificial Intelligence, Software Engineering for Internet Applications, Advanced Database Systems, Introduction to Programming

Training Delivered

  • topics: GNU/Linux system administration, Debian server administration, performance analysis, curriculum development, hands-on labs, student project supervision, paradigm-based teaching: functional (Scheme), logic (Prolog), object-oriented (Smalltalk)

Universities

  • institutions: Universidad Tecnológica Nacional (UTN FRSF), Universidad Católica de Santiago del Estero (UCSE), Universidad Adventista del Plata (UAP)
  • roles: Head Teaching Assistant (Jefe de Trabajos Prácticos), Adjunct Professor (Profesor Adjunto)

Methodologies & Practices

Development Practices

  • topics: Agile, Kanban, code review, pair programming, test-driven development, continuous improvement, iterative development, sprint planning, technical debt management, refactoring, documentation

Infrastructure Practices

  • topics: Infrastructure as Code (IaC), configuration management, reproducible environments, monitoring, logging, alerting, incident response, troubleshooting, capacity planning, performance analysis, bottleneck identification

Project Management

  • topics: ticketing systems, work item tracking, knowledge base management, team coordination, technical mentoring, cross-team collaboration, requirements gathering, technical proposals, estimation

Internationalization

  • topics: I18n (internationalization), l10n (localization), locale configuration, character encoding, Unicode, multi-language application support, translated interfaces, right-to-left support, date/number formatting

Tools & Editors

  • editors: Vim, VS Code
  • tools: Git, Docker, Make, SSH, tmux, psql, mysql, curl, wget, jq
  • topics: shell scripting (Bash), command-line proficiency, automation scripts

Contact & Links