da Tumberg
@datumberg
Customer-facing solutions engineer who builds production AI agents and CRMs, turning discovery into shipped systems and renewals.
CanadaWhat I'm looking for
I’m a customer-facing technologist with five years of quota-carrying sales, technical support, and retention experience, and I now build the software behind the customer loop myself. I translate business needs into production-ready systems—and I communicate clearly with both executives and engineers in EN/ES.
As Founder of International ISA, I designed, built, and deployed an end-to-end platform solo, including a production Flask/PostgreSQL stack and an authenticated CRM. I engineered two production Claude API agents with tool calling: one that researches, verifies, and writes leads into the database with duplicate protection, and another that automates research and Excel deliverables.
I run the full customer loop daily: discovery calls, demos, solution design, onboarding, and support. I’ve built repeatable processes for requirements gathering, POC scoping, proposal & pricing design, objection handling, escalation, and crisis management—while staying hands-on with implementation details.
Before founding, I owned technical account lifecycles for B2B clients and consistently drove renewals (kept 8–9 of every 10 clients renewing) through proactive multi-channel support. In parallel, I delivered top-tier technical support performance—leading with customer need, never closing until issues were resolved, and supporting Spanish-speaking callers while staying technically fluent.
Experience
Work history, roles, and key accomplishments
Founder
International ISA
Jun 2026 - Present (1 month)
Founded a real-estate sales-support company and built its production platform solo, including a Flask/PostgreSQL site and authenticated CRM on Render. Engineered Claude API AI agents with tool calling to research/verify data and write verified leads into the live database.
Crew Leader, Construction
Limen Masonry
Mar 2026 - Present (4 months)
Led a small crew on residential and commercial projects and served as the main client contact. Coordinated suppliers and trades, handled safety-critical situations, and translated between English and Spanish for crews and clients.
Commercial Insurance Producer
ProTech Texas
Mar 2025 - Mar 2026 (1 year)
Owned end-to-end technical account lifecycle for B2B trucking clients across carrier portals, including policy history, insured-asset records, balances, and cancellations. Closed approximately three policies per week and maintained 8–9 of 10 client renewals through proactive multi-channel support, including claim advocacy after serious accidents.
Construction
Limen Masonry
Jan 2022 - Mar 2025 (3 years 2 months)
Worked full-time in construction between Comcast and insurance sales, building project coordination and cross-team communication skills used in later client-facing roles.
Sales Representative
Comcast
Jan 2018 - Jan 2022 (4 years)
Top-performing sales representative handling acquisition, upsells, retention, and collections while also providing technical support. Created technical work orders, scheduled on-site visits, and ensured issues were fully resolved, including serving as the primary rep for Spanish-speaking callers.
Education
Degrees, certifications, and relevant coursework
University of Guadalajara
Certificate in General Accounting, General Accounting
Completed a Certificate in General Accounting at the University of Guadalajara.
Tech stack
Software and tools used professionally
Availability
Location
CanadaAuthorized to work in
Website
internationalisa.comJob categories
Skills
Interested in hiring da?
You can contact da and 90k+ other talented remote workers on Himalayas.
Message daGet matched with your dream remote job
Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!
