Available for opportunities

Sebastian Sosa

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Senior Presales & Solution Architect with 14+ years designing Unified Communications and Contact Center solutions across 5 countries. Expanding into Salesforce ecosystem, GenAI, Dialogflow CX, and full-stack development.

Let's Talk
14+ Years in IT
5 Countries
103 SF Badges
3 Superbadges
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Avaya Aura◆ Genesys Cloud◆ Five9◆ Salesforce◆ Dialogflow CX◆ Microsoft Teams◆ AWS Cloud◆ Python◆ Node.js◆ Apex◆ Fortinet◆ Cisco Meraki◆ Flow Builder◆ GenAI◆ Avaya Aura◆ Genesys Cloud◆ Five9◆ Salesforce◆ Dialogflow CX◆ Microsoft Teams◆ AWS Cloud◆ Python◆ Node.js◆ Apex◆ Fortinet◆ Cisco Meraki◆ Flow Builder◆ GenAI◆
01

Technical Expertise

UC & Contact Center

Architecture & design of enterprise UC/CC platforms. Presales champion for Avaya, Genesys, Five9, Collab, and Microsoft Teams — across cloud, on-prem, and hybrid deployments.

Avaya AuraGenesysFive9MS TeamsCollab

Salesforce

Flow Builder, SOQL/SOSL, Apex development. Trailhead Ranger with 103 badges and 3 Superbadges. Agentblazer Champion '25.

Flow BuilderApexSOQLTrailhead

GenAI & Dialogflow CX

Personal projects exploring conversational AI with Google Dialogflow CX and integrating GenAI capabilities into business workflows.

Dialogflow CXGenAINLPAutomation

Cybersecurity

Network security frameworks, fraud detection system design. Hands-on experience with Fortinet, Checkpoint, and enterprise security policies.

FortinetCheckpointFraud Detection

Cloud & Networking

AWS Cloud Practitioner certified. Architecture of cloud migrations and hybrid infrastructures. Cisco Meraki, VLANs, subnetting, high availability design.

AWSAzure M365Cisco MerakiHA Design

Development

Frontend (HTML/CSS/JS), Python, Node.js, Apex. TalentTech certified. Building automation tools and AI-powered integrations as personal projects.

PythonNode.jsApexFrontend
02

Professional Experience

Avaya Aug 2023 – Present

APS Technical Consultant — UC & CC Solutions

Buenos Aires, Argentina

  • Designed comprehensive Avaya Contact Center and UC solutions: Communication Manager, Call Center Elite, Workforce Optimization, Avaya Infinity, Avaya Cloud Office.
  • Led end-to-end implementation, configuration, and integration of complex telephony platforms adhering to best practices.
  • Planned seamless migrations and upgrades of existing Avaya systems with minimal downtime and guaranteed data integrity.
  • Provided advanced Level 3 technical support, troubleshooting critical issues directly with Avaya engineering.
  • Conducted technical workshops and training sessions for clients ensuring optimal solution adoption.
Avaya Aura CMCC EliteWFOAvaya InfinityCloud Office
DirMOD S.A. Jun 2022 – Jul 2023

Solution Design Presales

Buenos Aires, Argentina

  • Led technical meetings, presentations, and functional demonstrations for corporate clients, consistently achieving technical deal closures.
  • Developed comprehensive technical proposals, specifications, and responses to RFIs & RFPs.
  • Cultivated long-term strategic relationships with key accounts, acting as a trusted advisor.
  • Proposed innovative technologies to enhance the company's service offerings and maintain competitive edge.
RFI/RFPPresalesCloud UCDeal Closure
Lumen Technologies Aug 2021 – Jun 2022

UC & CC Solution Architect — LatAm

Argentina (Regional)

  • Defined architecture frameworks for new company solutions including hardware/software requirements, IP addressing, security, bandwidth, and high availability.
  • Led implementation of UC solutions (Microsoft Teams, Avaya) and CC solutions (Collab, Genesys, Five9, Avaya) across LatAm.
  • Served as regional technical reference for UC and CC products, coordinating with multiple vendors.
  • Certified in Avaya, Microsoft Teams, and Collab platforms.
LatAmGenesysFive9MS TeamsArchitecture
Inside One S.A. Aug 2014 – Jul 2021 · 6y 11m

Engineering & Solutions Manager → Presales Engineer

Buenos Aires, Argentina

  • Grew from Presales Engineer to Engineering & Solutions Manager over nearly 7 years, leading a full engineering team.
  • Oversaw architectural frameworks for new solutions with focus on robustness, scalability, and high availability.
  • Conducted technical/commercial surveys, solution quotations, and product demonstrations for Avaya Aura, IP Office, Cisco Meraki, Extreme, and Collab.
  • Developed fraud detection systems and implemented monitoring tools to ensure platform health.
  • Created technical manuals and training materials; provided Level 3 support for client platforms.
Avaya AuraIP OfficeCisco MerakiFraud DetectionL3 Support
Avaya Sep 2009 – Dec 2011

Customer Support Engineer

Buenos Aires, Argentina

  • Level 3 support for Avaya clients. Administered telephony systems: TDM, IP, SIP, trunks, real-time troubleshooting, and lab testing.
  • Linux administrator: user management, network trace analysis, installation and configuration. Platform: Communication Manager.
TDM/IP/SIPLinux AdminCommunication Manager
Techint Jan 2005 – Aug 2009 · 4y 8m

IT Project Manager → Help Desk Supervisor

Argentina | Houston | New York | Calgary

  • Led international IT migration projects across Argentina, USA (Houston, New York), Canada (Calgary), and Venezuela. Coordinated large-scale OS migrations (Novell to Windows), server deployments, and Active Directory implementations.
  • Supervised Help Desk team; created SOPs, trained staff, and provided L1-L3 support across multiple sites.
Project ManagementInternationalAD MigrationServer Admin
03

Key Achievements

5-Country Rollout

Successfully implemented Contact Center and UC nodes across 5 different countries, coordinating seamlessly with diverse international stakeholders.

AON Global Board Approval

Engaged as Cloud Solutions Architect for AON, culminating in the presentation and approval of the designed architecture by AON's global board of directors.

Fraud Detection System

Developed and implemented fraud detection systems from scratch, significantly enhancing client security posture.

Zero-Downtime Migrations

Orchestrated multiple complex system migrations ensuring minimal disruption and full data integrity across enterprise environments.

04

Certifications & Education

Salesforce Trailhead

Ranger · Agentblazer Champion '25

103Badges
62,350Points
17Trails
3Superbadges
Superbadge: Flow Fundamentals May 2026
Superbadge: Record-Triggered Flow May 2026
Superbadge: Object Relationships Mar 2026
2025
GCBA TalentTech — Salesforce Administrator TalentTech / GCBA
2025
Avaya Services Data Practitioner — Analytics Specialist II Avaya
2025
GCBA TalentTech — Introduction to Python TalentTech / GCBA
2025
GCBA TalentTech — Backend Node.js Developer TalentTech / GCBA
2024
Frontend Developer Digital House
2023
AWS Cloud Practitioner Amazon Web Services
2022
Microsoft M100 / Microsoft Teams Microsoft
2021
Cybersecurity Fundamentals: Networks Industry Certification
2021
Scrum Fundamentals SCRUMstudy

System Analyst

Universidad de Belgrano · 2016 – Present

Frontend Developer

Digital House · 2024 – 2026

Salesforce Administrator

GCBA TalentTech · 2025 – 2026

05

Personal Projects

In Progress

Dialogflow CX Conversational Agent

Building an enterprise-grade conversational AI agent using Google Dialogflow CX. Exploring NLU flows, webhook integrations, and multi-turn conversation design for Contact Center automation use cases.

Dialogflow CXNode.jsWebhooksNLUGenAI
In Progress

Salesforce Automation & Dev

Personal Salesforce org: building custom Flow automations, Apex triggers, and data models. Working toward advanced developer certifications while integrating real-world UC/CC scenarios.

SalesforceApexFlow BuilderSOQL
Live

Technical Portfolio Website

This very site — designed and built from scratch using HTML, CSS, and vanilla JS. Bilingual (EN/ES), responsive, with persistent analytics, PDF export, and a dark tech aesthetic.

HTML/CSSJavaScriptGitHub Pages
06

Skills Proficiency

UC & Contact Center

Avaya Aura / IP Office
Genesys / Five9
Microsoft Teams UC
Collab / Asterisk

Development & Cloud

Salesforce / Apex
Python
Node.js
AWS Cloud

Soft Skills

Presales / Deal Closure
Technical Presentations
RFI/RFP Responses
English (Advanced)
07

Get In Touch

Let's build something great together.

Open to Presales, Solution Architecture, and Salesforce/GenAI roles. Based in Buenos Aires, Argentina. Working currently with a US company.

ssosa17@gmail.com linkedin.com/in/ssosa17 Trailblazer Profile

Villa Devoto, CABA, Argentina