Hands-on CTO / Head of Engineering for SaaS startups

Curriculum Vitae

Hands-on CTO and Head of Engineering for startups and scale-ups where product, reliability, hiring, cost, and execution all matter at once. I was an early engineering leader at Hopin, helping scale the company to 1,200 people, contributing to 300+ hires, reducing annualized cloud and provider spend by 74%, and moving release discipline from weekly deployments to continuous deployment. Today I build SMB intelligence products at Ethos Link, including live Reviato pilots and customer demos for restaurants and hotels. I fit fractional CTO, permanent CTO, and Head of Engineering roles that need org leadership, technical ownership, and hands-on delivery.

Experience

Founder

Dec 2024 - Present

Ethos Link / Reviato

Started during the final Hopin/RingCentral transition period.

Founder-led product work building SaaS, analytics, and AI-assisted decision systems for SMBs from customer, inventory, supplier, and operational data.

  • Built and launched Reviato, a live B2B SaaS product that helps SMBs collect customer reviews, spot sentiment and theme patterns, and turn feedback into operational improvements.
  • Validated Reviato across restaurants and hotels through pilots, customer demos, and early customers; the combined production, benchmark, and research dataset covers roughly 200,000 reviews and 20,000 locations.
  • Built AI-assisted review analysis workflows, including model benchmarks for real customer-feedback scenarios and provider evaluations that balance cost, output quality, and scale.
  • Built custom business intelligence and decision-support systems from operational data, including profitability, supplier performance, stock movement, and margin-risk analysis for a fashion retail business.
  • Built and reviewed product architecture, provider integrations, build-vs-buy decisions, ownership boundaries, and implementation plans for Reviato and related data-heavy SaaS workflows.
  • Built practical go-to-market assets for restaurants, hospitality, local services, and retail-style SMBs.

Founding Engineering Lead

Nov 2019 - May 2025

Hopin / RingCentral

Event technology SaaS company for virtual, hybrid, and onsite events, acquired by RingCentral in August 2023. Joined as the 6th employee and contributed to scaling the company to 1,200 employees within 18 months.

  • Partnered with founders, CTOs, managers, and ICs across architecture, roadmap planning, engineering commitments, hiring, org design, onboarding, mentoring, vendor assessment, and cross-team delivery.
  • Ran hiring loops, interviewed candidates, reviewed interviews, worked with agencies, sourced candidates, evaluated outsourcing partners, and helped design the first and later iterations of career-development plans, contributing to 300+ successful hires in under one year.
  • Contributed to promotions, performance reviews, compensation input, and mentoring engineers into senior and staff-level roles while owning or influencing roadmaps and delivery commitments.
  • Broke down engineering, support, and sales silos by replacing slow escalation paths with direct operating channels, regular issue reviews, and clearer ownership for customer-facing problems.
  • Led acquisition-readiness cost reduction by scaling down services, cutting unused or low-usage product areas, and trimming infrastructure and provider spend, reducing annualized cloud/provider costs by 74%, from $4.6M to $1.2M.
  • Led strategic build-vs-buy decisions across hosted databases, authentication, API development, billing, scalability, and stress testing, balancing speed, cost, reliability, and long-term maintainability.
  • Raised engineering quality and release confidence through CI/CD, automated code checks, vulnerability scans, incident debriefs, on-call improvements, and blameless practices, improving deployment frequency from weekly to continuous and reducing incidents from 2 to 3 per week to roughly 2 per month.

Software Engineering Lead

Oct 2017 - Jul 2019

Visible Alpha

Fintech company funded by leading investment institutions. Built research processing systems supporting MiFID II compliance for buy-side investment research workflows.

  • Led a 12-person engineering team building a research processing and indexing platform that extracted, enriched, stored, and tracked analyst research reports for wealth managers.
  • Supported MiFID II compliance workflows, helping protect market access, client trust, and uninterrupted service for global financial customers.
  • Re-architected the platform to separate research ingestion, consumption, and tracking through event-driven processing and REST APIs.
  • Introduced clean-code practices, TDD, infrastructure as code, and CI/CD to reduce defects and improve delivery confidence.

Software Engineering Lead

Apr 2016 - Oct 2017

Talkdesk

Cloud-based contact center SaaS.

  • Improved performance, scalability, and resilience of legacy contact-center systems, reducing infrastructure requirements and incident resolution time by more than 50%.
  • Architected and led development of a next-generation call-routing system that introduced new product capabilities and handled 20% of inbound call volume within three months.
  • Reduced customer onboarding time from 6 weeks to 2 weeks by improving workflow configuration, internal tooling, and customer self-service.
  • Pioneered engineering-support collaboration days where engineers improved the operational dashboards and tools support used most, prioritizing the highest-volume and most labor-intensive issues to improve ticket closure time and customer satisfaction.

Software Engineering Lead

Jan 2012 - Jan 2014

Novertur

SaaS company producing business matchmaking reports using NLP and big data.

  • Ran a full architecture review with founders and team members, clarifying duplication, optimization opportunities, ownership boundaries, and the system roadmap.
  • Reorganized two engineering teams, 15 people total, around clearer ownership and product goals, improving collaboration and system integration.
  • Reduced report production cost by 60%, from $2,000 to $800 per report, by redesigning the architecture, improving automation, and moving batch workloads onto more efficient cloud setups using spot instances.
  • Led development of business matchmaking reports using NLP and Hadoop on Amazon EMR to identify and score allies, distributors, competitors, and suppliers in foreign markets.

Earlier experience

Senior Software Engineer, Wit Software

Nov 2010 - Oct 2014

Telecom software, push notification gateway, RCS auto-configuration, SIP application server, and real-time media transcoding.

Software Engineer, Ubiwhere

Jun 2009 - Nov 2010

Message processing modules for SMS, MMS, WAP Push, CRM integrations, and banking-related telecom services.

Lead Software Engineer, Wlink

Apr 2009 - Jun 2016

Part-time independent work alongside later full-time roles.

Built and led a 6-person team for multimedia distribution projects and custom GSM switch modem work for SMS campaigns.

Software Engineer, Mentes Virtuais

May 2007 - Jul 2009

Fixed-mobile convergence web application, ENUM proof of concept, and value-added SMS/WAP Push campaign management services.

Software Developer, Saphety

Jun 2005 - Sep 2005

LDAP to MySQL synchronization process for electronic invoicing SaaS infrastructure.

Education

M.Sc. in Computer Science

University of Evora, Portugal

2011 · Graduated top 5%

B.Sc. in Computer Science

University of Evora, Portugal

2006 · Graduated top 10%