Freelance Growth Marketers in Buenos AiresFreelance Growth Marketers in Buenos Aires
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Juan ignacio Veltri's avatar
Juan ignacio Veltri
Caseros, Argentina
Senior Full Stack Engineer · Next.js · React Native · Expo
New to Contra
Senior Full Stack Engineer · Next.js · React Native · Expo
Cover image for BE PAWLY — A COMPLETE
BE PAWLY — A COMPLETE LAUNCH KIT, ORCHESTRATED BY AN AGENT IN ONE AFTERNOON The premise I'm an indie dev about to launch Be Pawly, an AI-powered app that matches photos of lost and found pets in real time, helping reunite them with their owners. The product is ready. The launch kit wasn't. Hiring an agency for identity, mockups, ads, and a launch video wasn't on the table for a solo founder. So I gave Melius a single brief and let Mel orchestrate the entire kit. The result 18 connected nodes. One coherent brand. About 4,000 credits consumed out of 50,000. → Hand-drawn bilingual logo with the tagline "Conectamos corazones, reunimos familias" → 3 mobile app UI mockups (Upload Lost Pet, AI Match, Reunion Confirmed) → 4 emotionally segmented Meta ads (Community, Gratitude, Hope, Urgency) → 1 redesigned modern "missing pet" street flyer with QR → 1 cinematic 15-second vertical Instagram video, anchored to a keyframe The process, in three phases I gated execution by phase to manage credits and review the agent's output at every dependency boundary. Phase 1 — Foundation (72 credits). Just the logo. The logo anchors every downstream asset, so it was the only node I needed to lock before generating anything else. Mel routed GPT Image 2 (Medium) and delivered a hand-drawn terracotta mark, and proposed a bilingual tagline I never asked for, but that fit the Latin American neighborhood-first tone perfectly. Phase 2 — Derivatives (around 1,000 credits, 8 parallel nodes). Three UI mockups, four ad variants, one flyer. Mel propagated the Spanish tagline across every asset without prompting, invented credible character names (Max, Toby, María & Simba), and used context-appropriate Latin American Spanish ("publicador" instead of "poster"). The brand feels like a real product, not stock. Phase 3 — Motion (around 3,000 credits). A cinematic keyframe of the reunion, then a 15-second vertical Instagram spot anchored to it. When I asked Mel which model it would use, it didn't just pick — it offered me Kling 3.0 Omni (2,520 credits) versus Grok Imagine (1,260 credits), explained the tradeoff ("Kling handles the emotional human-first nuance a bit better"), and let me decide. What separates an agent from a generator Three behaviors Mel did on its own that no generator I've used does: Model routing with reasoning. GPT Image 2 across the 8 image nodes for stylistic coherence; Kling 3.0 Omni for the video, chosen for emotional nuance. Transparent about cost tradeoffs. Style propagation through wired connections. The tagline, color palette, and character voice flowed from one node into every downstream node automatically. No copy-paste, no re-prompting. Initiative within taste. The bilingual tagline. The character names. The neighborhood-aware Spanish. These were unprompted but always on-brief. Feedback for the Melius team What worked beautifully: → The canvas-as-conversation model. Being able to point at a specific node and refine it without re-running the whole graph is a step-change versus linear chat-based generation. → Mel's proactive credit transparency. Asking "which model and how many credits" before running was huge for budget management. → Auto-grouping into Brand Identity, Meta Ad Campaign, and Social Video was an unprompted decision that made the canvas instantly readable. Suggestions: → Surface estimated credit cost on hover for every node before approval, not just when prompted. → A "fork node" action to create alternative variants in parallel without losing the original would be useful for A/B-ing ads. → An export-as-launch-kit shortcut (a zip with all assets in presentation order) would close the loop from creative to delivery. Built entirely on Melius. Models routed: GPT Image 2 (Medium) and Kling 3.0 Omni. Total credits consumed: about 4,000 of 50,000. The 15-second reunion video is attached. Project canvas: https://app.melius.com/projects/04e916b8-35de-4957-8db6-53ac1af180ad/canvas/4d8d194a-d0d5-4e4c-a59b-d7a4561923bb
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Cover image for Sitio web premium para TMS
Sitio web premium para TMS Construcciones, empresa constructora argentina con más de 30 años de experiencia en el Alto Valle de Río Negro y Neuquén (región impulsada por Vaca Muerta). Showcase de 6 proyectos activos de desarrollo inmobiliario residencial y comercial, con renders 3D, animaciones fluidas, video hero y soporte bilingüe ES/EN. Construido con Next.js + TypeScript, animaciones con Framer Motion + GSAP, renders 3D con Three.js, internacionalización con next-intl. Stack frontend-first con foco en performance, SEO y experiencia visual de alto nivel.
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Cover image for Be Pawly es una plataforma
Be Pawly es una plataforma todo-en-uno para mascotas que usa inteligencia artificial para reunir mascotas perdidas con sus familias. El algoritmo analiza fotos, ubicación y características para encontrar coincidencias entre reportes de mascotas perdidas y encontradas, con notificaciones en tiempo real cuando hay un match. También conecta refugios verificados con adoptantes y permite difundir búsquedas en redes sociales. Stack: Next.js, TypeScript, Drizzle ORM, Google Vertex AI, Clerk, Pusher.
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Cover image for Puntify — Anotador de juegos
Puntify — Anotador de juegos de cartas (IOS)
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Growth Marketer(1)
Jennifer Silva's avatar
Jennifer Silva
Buenos Aires, Argentina
Social Media Manager and Community builder
Social Media Manager and Community builder
Cover image for Paid Ads Manager Specialist
Paid Ads Manager Specialist
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Cover image for Community Building
Community Building
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Cover image for Social Media Management
Social Media Management
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Cover image for Social Media Strategist
Social Media Strategist
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Growth Marketer(1)
Daniel Lanao's avatar
Daniel Lanao
Buenos Aires, Argentina
Founder, Tech Leader, Product Manager, Software Developer
New to Contra
Founder, Tech Leader, Product Manager, Software Developer
Cover image for Sportchain is a StartUp, a
Sportchain is a StartUp, a Web3 platform that allows people to invest and co-own sports facilities. This project has won 1st place in a hackathon and received mentorships from FounderSchool and Lisk.
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Cover image for This is a Business Simulator
This is a Business Simulator platform in Finances , that allows students from universities and profesionals to learn and test their knowledge in finances using real cases scenarios, and getting feedback in all the journey.
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Cover image for Ranking Platform for padel players
Ranking Platform for padel players 🔥, they can register their matches, and be ranked with an ELO ranking system. It is a secondary product from SportChain
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Cover image for Personal Website, for a Director
Personal Website, for a Director and Producer, video potfolio, films, awards using NEXT JS, Vercel
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Growth Marketer(1)
Joaquín Vago's avatar
Joaquín Vago
San Isidro, Argentina
web3, AI, ML enthusiast | Fintech | Marketing | Consulting
web3, AI, ML enthusiast | Fintech | Marketing | Consulting
Cover image for Mercado Pago México | La cuenta digital de Mercado Libre
Mercado Pago México | La cuenta digital de Mercado Libre
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Cover image for Real Estate Investments in MA, NH and ME - Candor Realty powere…
Real Estate Investments in MA, NH and ME - Candor Realty powere…
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Cover image for One - Rewarding Life with Simplicity
One - Rewarding Life with Simplicity
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