Alexander Talavera Karslake
Fullstack Engineer · QA Automation · AI Builder
I build customer-focused, AI-driven products end-to-end, from architecture and fullstack delivery through to QA automation and go-to-market. I work directly with clients and stakeholders to translate fuzzy ambitions into shipped, measurable outcomes.
- 10+
- years shipping software
- 100+
- professional repos
- 1M+
- sales processed
- 10K+
- installs · Smart Translate
Experience
Founder, Fullstack & AI Engineer · TalkarTech LTD
Aug 2024 to Present
Strasbourg, France · Remote
- Went all-in on TalkarTech: shipped Ahorita (flagship, native iOS + Android), Anubix (cloud AI coding workspace), Smart Translate and Train Zone (Wear OS), and VolKnob (macOS, Swift).
- Grew Smart Translate to 10K+ installs, 1K+ monthly active users, and 3K+ active devices (Google Play Console verified).
- Built production AI pipelines end to end: Claude and OpenAI APIs, MCP agents, speech scoring, TTS, and automation with n8n and Playwright.
- Covered every business angle solo: product strategy, pricing, ASO/SEO, analytics, and customer support.
- Earned four Anthropic certifications: Model Context Protocol, Claude API, agent skills, and Claude Code.
Fullstack, QA & Customer Solutions · Leanspace
Jul 2022 to Aug 2024
Strasbourg, France
- Built MCS Lite, a React app for satellite ground station management, cutting customer onboarding time.
- Hardened REST APIs (Java + TypeScript) with rigorous integration tests, reducing suite time from 2 minutes to 10 seconds.
- Authored a Playwright automation framework that replaced large blocks of manual QA.
- Partnered with customer solutions to translate UX pain points into product fixes that reduced support load.
Frontend Engineer · E-bot7 (Conversational AI)
Mar 2022 to Jul 2022
Munich, Germany
- Delivered the customer-facing platform for an AI chatbot powered by a custom intents library.
- Built scalable Stencil.js components for a reusable design system.
- Worked with the NLU team to refine intent recognition, lifting answer accuracy and CSAT.
Fullstack Engineer & UX Specialist · Flat.mx
Mar 2021 to Mar 2022
Mexico City, Mexico
- Led the migration from Vue.js to Next.js with SSR & SSG, dropping page loads to sub-second and improving SEO rankings.
- Refactored a tangled codebase into a modular architecture the team could move fast on.
- Stood up analytics pipelines with Segment and Google Analytics that shaped product direction.
Senior Product Engineer · Quipro Software Solutions
Jan 2017 to Sep 2020
Mexico City, Mexico
- Built chanfle.mx, a POS system with hardware integration that has processed 1M+ sales to date.
- Introduced automated build pipelines so new restaurant locations could onboard from a single JSON file.
Director & Senior Fullstack Developer · TalkarTech LTD
Aug 2019 to Aug 2024
United Kingdom
- Designed and shipped AI-powered products alongside full-time roles: AutoBuddy.ai, PetWorld.live, LearnMexicanSlang.
- End-to-end MVPs with integrated analytics, heavy SEO, and automation, built for rapid go-to-market.
- Leveraged OpenAI APIs, MCP agents, and tools like n8n and Playwright to deliver intelligent, scalable solutions.
Independent Engineer · Freelance Software Solutions
Jan 2016 to Nov 2022
Remote
- Worked directly with hundreds of clients to scope, architect and ship high-impact software.
- Selected stacks, designed architectures, and implemented AI, automation, and fullstack apps.
- Built lasting relationships through clear communication and rapid, results-driven delivery.
Electronics Craftsmanship · CP Electronics
Jun 2012 to Aug 2012
London, UK
- Assembled hardware for the energy efficiency sector, with early lessons on hardware/software synergy.
Anthropic certifications
Introduction to Model Context Protocol
Anthropic · Issued May 2026
verify.skilljar.com/c/sodff7oisz65Building with the Claude API
Anthropic · Issued May 2026
verify.skilljar.com/c/upfzv989sfdcIntroduction to Agent Skills
Anthropic · Issued Apr 2026
verify.skilljar.com/c/msjjic4cxpnhClaude Code in Action
Anthropic · Issued Apr 2026
verify.skilljar.com/c/ptgcn5mc4b4j
Shipped products
- Ahorita (Flagship · iOS · Android) · Native iOS + Android app to learn Spanish through stories with AI-powered feedback.
- Anubix · Cloud-based AI coding workspace. Build & ship from any device.
- PetWorld · Real-time platform connecting pet owners with trusted carers.
- AutoBuddy AI · Computer-vision vehicle inspections with REPUVE checks.
- Smart Translate (Wear OS) · On-wrist Wear OS translator with best-in-class speech recognition.
- Learn Mexican Slang · Conversational language learning rooted in actual culture.
- Train Zone (Wear OS) · Heart-rate zone coach for Wear OS: focused, glanceable, haptic.
- VolKnob (macOS · Swift) · Native macOS menu-bar app in Swift: volume keys on any output plus a real-time 31-band EQ.
Toolkit
- AI & Automation: OpenAI APIs · MCP agents · NLU pipelines · n8n · Playwright · Cursor / Copilot
- Frontend: TypeScript · React (Suspense, RSC, Hooks) · Next.js · Redux / Zustand / React Query · Tailwind · Design systems · WCAG
- Native & Mobile: Swift (macOS) · Core Audio / real-time DSP · Cocoa menu-bar apps · Kotlin (Wear OS) · React Native / Expo
- Backend & Data: Node.js · Python / Django · PostgreSQL · MongoDB · Express · tRPC · REST
- Cloud & DevOps: AWS (EC2, S3, IAM) · GitHub Actions · CI/CD orchestration · Containerized deployments
- Quality & Testing: Playwright (preferred) · Jest · Integration testing · Smoke & regression · CI/CD management
- Atlassian Ecosystem: Jira automation · JQL · Confluence macros · Bitbucket Pipelines
Education & languages
Electrical & Electronic Engineering
UNAM · Universidad Nacional Autónoma de México · 2012 to 2016
Completed all "Extra Science" credits, including algorithms and data structures. Third place in a differential equations competition.
- English · Native
- Spanish · Native
- German · B2, actively improving
- French · B2, actively improving