# Jaspero — Full Site Content for LLMs ## Company Overview Jaspero is a software development company based in Croatia with over 12 years of experience and a team of 20+ engineers. We specialize in AI integration, process automation, and custom software development. Our work spans web applications, mobile apps, back-office systems, partner dashboards, delivery platforms, e-commerce, and business intelligence tools. We serve clients across health tech, fintech, e-commerce, sports and recreation, and social fitness. Our approach is to act as a dedicated engineering team for our clients, building long-term partnerships rather than one-off projects. Contact us at info@jaspero.co or +385 91 433 6708. Visit https://jaspero.co. --- ## Services ### AI Integration We seamlessly integrate machine learning, NLP, and computer vision into existing systems. Our AI capabilities include OpenAI and GPT-4 integration, LangChain orchestration, TensorFlow and PyTorch model deployment, Hugging Face transformers, RAG pipelines with Pinecone and ChromaDB, Whisper speech recognition, and Stable Diffusion image generation. ### Process Automation We automate repetitive tasks and streamline workflows to increase efficiency and reduce costs. This includes data pipeline automation, system integration, workflow orchestration, and business process optimization. ### Custom Software Development We build tailored software applications designed specifically for business needs. This covers full-stack web applications, cross-platform mobile apps (React Native), admin dashboards, partner portals, delivery platforms, warehouse management systems, and business intelligence dashboards. --- ## Technology Stack ### Frontend React, Svelte, SvelteKit, Next.js, Angular, Vue.js, React Native, Tailwind CSS, TypeScript ### Backend & Runtime Node.js, Bun, Go, Python, FastAPI, Express, NestJS, Hono, tRPC, GraphQL ### AI & Machine Learning OpenAI, GPT-4, LangChain, TensorFlow, PyTorch, Hugging Face, LLaMA, Stable Diffusion, Whisper, Pinecone, ChromaDB, scikit-learn, Keras, ONNX, RAG Pipelines ### Cloud & Infrastructure Google Cloud, AWS, Vercel, Cloudflare, Firebase, Supabase, Docker, Kubernetes, PostgreSQL, Redis, MongoDB --- ## Case Studies ### GlycanAge — Full Technology Backbone for Biological Age Testing - Client: GlycanAge (glycanage.com) - Category: Health Tech - Duration: 6-year partnership (ongoing) - Role: Dedicated engineering team - Systems built: 10+ interconnected systems - Technologies: SvelteKit, Node.js, PostgreSQL, React Native, Google Compute Engine, BigQuery, Tailwind CSS We serve as GlycanAge's entire engineering team. Over 6 years, we built their complete technology infrastructure for the world's leading biological age test. This includes the customer-facing website, customer portal, partner portal, affiliate dashboard, lab management system, lab mobile application, warehouse system with mobile app, partner API, web components library, back office, and business intelligence dashboard. The platform supports 350+ peer-reviewed publications and leverages 30+ years of glycan research. ### Four — Engineering the #8 Commerce App on the App Store - Client: Four (paywithfour.com) - Category: FinTech - Duration: Partnership since founding - Role: Embedded engineering team member - Key metrics: #8 App Store Commerce ranking, 4.8 stars, 99K+ ratings, 1M+ Google Play downloads We have been part of Four's engineering team since the company's inception. Four is a buy-now-pay-later platform that lets users split purchases into four interest-free payments at hundreds of online retailers across the United States. We work as an integrated part of their larger engineering organization, contributing to the core mobile application and payment/commerce platform. ### Plodovi — Complete Technology Platform for Farm-to-Table Marketplace - Client: Plodovi (plodovi.hr) - Category: E-Commerce / Short Supply Chain - Duration: 4-year partnership (ongoing) - Systems built: 6 interconnected systems - Key metrics: 130+ producers, 4.9 rating, 24-hour delivery - Technologies: SvelteKit, React Native, Node.js, PostgreSQL, Supabase, Deno, Tailwind CSS As Plodovi's dedicated development team for 4 years, we built the complete technology ecosystem for Croatia's leading short supply chain platform. The system connects local food producers with customers, delivering fresh domestic produce from field to table within 24 hours. We built the website, retailers platform, shopper portal, delivery platform with mobile app, admin application, and business intelligence dashboard. ### MOVE & MEET — Full Digitalization of a London Social Fitness Community - Client: MOVE & MEET (moveandmeet.co.uk) - Category: Social Fitness - Systems built: 4 (website, mobile app, back office, partner dashboard) - Key metrics: 4.9 App Store rating, 5.0 Google Play rating, 12K+ Instagram followers - Technologies: SvelteKit, React Native, Node.js, PostgreSQL, Google Cloud, Tailwind CSS We took MOVE & MEET from running their business through spreadsheets to a fully digitalized platform. The London-based social fitness community hosts events including yoga, HIIT, pilates, running clubs, and social brunch. We built their website, cross-platform mobile app, back office, and partner dashboard for brand collaborations with companies like Lululemon, Shokz, and Biomel. ### Buqtivity — Sports & Recreation Discovery Platform - Client: Buqtivity (hr.buqtivity.com) - Category: Sports & Recreation - Systems built: Website, event/booking system, partner portals, content management - Technologies: SvelteKit, Firebase, Google Compute Engine, Node.js, Tailwind CSS We built the complete technology platform for Buqtivity from scratch. It is a multi-sided marketplace connecting event organizers, tour guides, and companies with people looking for outdoor activities and adventures across Croatia. The platform covers destinations across Croatia with partner brands including Intersport and Polleo Sport. Launching for full operations in summer 2026. --- ## About the Team Jaspero has a team of 20+ engineers and has delivered over 200 projects. Founded over 12 years ago, the company maintains a 100% client satisfaction rate. We also run a student program to mentor the next generation of developers. Our process follows four phases: 1. Discovery — Understanding goals, challenges, and requirements 2. Strategy — Creating technical roadmap and architecture 3. Development — Building with modern tools and best practices 4. Support — Ongoing maintenance, optimization, and scaling --- ## Blog Practical writing on software development, AI integration, and shipping products, published at https://jaspero.co/blog. ### Cost per Executed Task: The Unit-Economics Model We Use to Decide Between Automating a Process and Hiring an Ops Person - URL: https://jaspero.co/blog/the-cost-per-task-model-we-use-to-answer-should-we-automate-this-or-hire-an-ops- - Category: Product - Published: 2026-09-03 A reusable unit-economics model for deciding when process automation is cheaper than hiring: cost per executed task, maintenance drag, error-correction cost, seasonality, and the volume threshold below which a part-time human wins. ### The Zero-to-App-Store Timeline: 14 Weeks, Week by Week, and the Founder Decisions on Days 3, 19, and 62 - URL: https://jaspero.co/blog/the-zero-to-app-store-timeline-what-14-weeks-of-a-from-scratch-mobile-build-actu - Category: Product - Published: 2026-09-01 A week-by-week calendar of what a from-scratch mobile app build actually contains, drawn from real React Native builds, including the founder decisions that are irreversible after launch and the App Store rejections that cost days. ### The Health-Tech Agency Bake-Off: 9 Vendor Questions a Diagnostics Founder Asked Us, and the 4 We'd Answer Differently Six Years On - URL: https://jaspero.co/blog/the-health-tech-agency-selection-bake-off-the-9-vendor-questions-glycanage-asked - Category: Product - Published: 2026-08-30 The real vendor-evaluation questions GlycanAge put to us in 2019 before hiring us to build their lab and customer systems, the answers we gave, and the four answers six years of regulated diagnostics work proved naive. ### Retrofitting AI Into a Product You Didn't Build: The Six-Point Codebase Readiness Score We Run Before Quoting - URL: https://jaspero.co/blog/retrofitting-ai-into-a-product-you-didn-t-build-the-six-point-codebase-readiness - Category: AI - Published: 2026-08-26 The six-axis engineering audit Jaspero runs on an existing codebase before quoting an AI integration: data access path, write-path idempotency, latency headroom, PII boundary, observability, and deploy frequency, with real scores from four production products. ### The AI Integration Invoice: What Six Retrofits Actually Cost, Line by Line - URL: https://jaspero.co/blog/the-ai-integration-invoice-what-six-retrofits-actually-cost-line-by-line-scoping - Category: AI - Published: 2026-08-25 A line-by-line breakdown of what retrofitting AI into live products actually costs: discovery versus implementation hours, cost per 1,000 calls, eval and fallback budget share, and the two engagements where we wrote off time. ### The Non-Technical Founder's Escalation Ladder: 7 Decisions You Own, 23 We Take Off Your Desk - URL: https://jaspero.co/blog/the-non-technical-founder-s-escalation-ladder-the-7-decisions-we-ask-founders-to - Category: Product - Published: 2026-08-24 A written escalation contract that splits technical decision authority between a non-technical founder and their engineering team, sorted by reversibility, spend, compliance exposure, and customer visibility. ### The Full-Time CTO Job Description We Talked Three Founders Out Of: A Line-by-Line Duty Audit - URL: https://jaspero.co/blog/the-full-time-cto-job-description-we-talked-three-founders-out-of-line-by-line-w - Category: Product - Published: 2026-08-23 Three founders came to us with a drafted full-time CTO posting. We scored each responsibility bullet by real hours consumed, whether it needed continuity or judgement, and which ones a fractional arrangement covers. Plus the two roles we told them to hire full-time instead. ### Shipping AI Features Without an ML Engineer: The Four Ownership Roles We Assign Instead - URL: https://jaspero.co/blog/shipping-ai-features-without-an-ml-engineer-the-four-roles-we-assigned-instead-p - Category: AI - Published: 2026-08-22 None of our three clients running AI features had an ML hire. Here is how we split model behaviour into four named roles (Prompt Owner, Eval Owner, Cost Owner, Fallback Owner) and handed them to existing product and backend staff. ### Scoping a Custom Software Project With an Agency: The Five Discovery Artifacts We Hand Over Before a Contract Is Signed - URL: https://jaspero.co/blog/scoping-a-custom-software-project-with-an-agency-the-discovery-artifacts-we-hand - Category: Product - Published: 2026-08-21 The exact documents a software agency should produce during pre-contract discovery: entity/event model, integration inventory, must-ship-first list, non-goals, and assumptions register. Plus four real scope traps that cost us money. ### The AI Retrofit Log: Six Features We Added to Products Already in Production (and the Two We Turned Off) - URL: https://jaspero.co/blog/the-ai-integration-retrofit-log-six-features-we-added-to-products-already-in-pro - Category: AI - Published: 2026-08-20 A feature-by-feature account of retrofitting AI into live products: where the call was inserted, latency budgets, cost per call, fallbacks, human review gates, and the two features we shipped and then removed. ### The Back Office Work We Deleted: A Task-by-Task Automation Audit from MOVE & MEET and Plodovi - URL: https://jaspero.co/blog/the-back-office-work-we-deleted-at-move-meet-and-plodovi-a-task-by-task-audit-of - Category: Engineering - Published: 2026-08-19 A concrete inventory of the recurring manual admin tasks two small operations ran every week, which ones we automated, which ones we left alone on purpose, and the three automations we reverted. ### OpenAI vs. Anthropic vs. a Local Model: The Selection Matrix We Ran for Three Client Features - URL: https://jaspero.co/blog/openai-vs-anthropic-vs-a-local-model-the-selection-matrix-we-ran-for-three-clien - Category: AI - Published: 2026-08-18 How we chose between OpenAI, Anthropic, and a self-hosted model for three production features: consent-bound health data, marketplace product copy at scale, and support triage. The constraints that actually decided it, and what broke when we switched providers. ### From Spreadsheets to a Custom Internal System: The Migration Playbook We Ran for MOVE & MEET and Plodovi - URL: https://jaspero.co/blog/from-spreadsheets-to-a-custom-internal-system-the-exact-migration-we-ran-for-mov - Category: Engineering - Published: 2026-08-17 A practical, step-by-step account of replacing spreadsheets with a custom internal system: auditing formulas for hidden business rules, modelling entities versus events, cleaning dirty history, running parallel, and cutting over without losing operator trust. ### The TypeScript Code Review Checklist We Run on Every SvelteKit and React Native Pull Request - URL: https://jaspero.co/blog/the-typescript-code-review-checklist-we-run-on-every-sveltekit-and-react-native- - Category: Engineering - Published: 2026-08-16 Jaspero's per-PR review checklist for TypeScript codebases: type boundaries, Zod contracts, Firestore rules and queries, SvelteKit server boundaries, and React Native re-render checks, plus the comment classes we deleted and automated instead. ### Rebuilding a Fitness Community App From Scratch in React Native: A 14-Week Build Log - URL: https://jaspero.co/blog/rebuilding-a-mobile-app-from-scratch-in-react-native-the-14-week-build-log-for-m - Category: Engineering - Published: 2026-08-15 A week-by-week build log of taking MOVE & MEET, a London fitness community, from spreadsheets to a shipped iOS and Android app in React Native: scope cuts, feature order, App Store rejection, TestFlight builds, and the iOS-versus-shared code split. ### The Health-Tech Engineering Checklist: What Has to Exist Before Your First Sample Ships - URL: https://jaspero.co/blog/building-a-regulated-health-tech-product-the-engineering-checklist-we-ran-for-gl - Category: Engineering - Published: 2026-08-14 A phase-by-phase engineering checklist for regulated health-tech products, drawn from six years building GlycanAge's lab systems, kit logistics, consent capture, and clinician-gated result release. ### The Jaspero Client Handbook: Contracts, Team Setup, Code Ownership, and Handover - URL: https://jaspero.co/blog/jaspero-client-handbook-every-question-prospects-ask-before-hiring-us-contracts- - Category: Product - Published: 2026-08-13 A frank answer to the questions prospects ask before hiring Jaspero: how engagements are contracted, who staffs the team, who owns the code and repositories, and exactly what happens at handover. ### Compliance Engineering in a Diagnostics Platform: Consent, Sample Traceability, and Audit Trails - URL: https://jaspero.co/blog/six-years-of-regulated-health-tech-engineering-consent-sample-traceability-and-a - Category: Engineering - Published: 2026-08-11 How we engineer consent capture, sample chain-of-custody, result release rules, and GDPR deletion in a regulated health-tech platform, based on six years building and maintaining GlycanAge's systems. ### Jaspero's Open Source Portfolio: Inside JMS and Five Public SvelteKit + Firebase Repositories - URL: https://jaspero.co/blog/jaspero-s-open-source-portfolio-what-jms-our-cms-and-five-public-sveltekit-fireb - Category: Engineering - Published: 2026-08-08 A technical index of Jaspero's public GitHub repositories: JMS, our open source CMS, plus the full source of five production SvelteKit and Firebase sites, and how to read each codebase. ### Inside Jaspero's Engineering Stack: The Tools, Frameworks, and Decisions Behind Every Product We Ship - URL: https://jaspero.co/blog/inside-jaspero-s-engineering-stack-the-tools-frameworks-and-decisions-behind-eve - Category: Engineering - Published: 2026-08-07 A concrete write-up of the stack Jaspero uses by default: SvelteKit on the web, Firebase and Firestore for backend, React Native for mobile, and Postgres or BigQuery when Firestore stops being the right tool. ### Ranking for Your Own Agency Name: How We Rebuilt the Brand SERP for jaspero.co - URL: https://jaspero.co/blog/building-a-brand-presence-that-ranks-for-your-own-agency-name-what-we-fixed-on-j - Category: SEO - Published: 2026-08-06 An engineering write-up of how we fixed the brand search results for "Jaspero": entity markup, Organization and sameAs schema, GitHub and case study interlinking, and disambiguating from unrelated entities with the same name. ### API Security Across 10+ Interconnected Systems: Auth Boundaries, Service-to-Service Trust, and Data Flow Controls - URL: https://jaspero.co/blog/api-security-across-10-interconnected-systems-auth-boundaries-service-to-service - Category: Engineering - Published: 2026-08-05 How to secure APIs when customer portals, mobile apps, partner dashboards, lab systems, admin panels, and BI tools all exchange sensitive data. Practical patterns for auth boundaries, service-to-service trust, and cross-system data flow control. ### Architecting Privacy-Preserving AI: Anonymization Pipelines, GDPR Controls, and Compliance Patterns for Production Systems - URL: https://jaspero.co/blog/architecting-privacy-preserving-ai-data-anonymization-gdpr-controls-and-complian - Category: Engineering - Published: 2026-08-03 A technical blueprint for building AI systems that handle personal data lawfully: data minimization at ingestion, pseudonymization pipelines, PII redaction before LLM calls, tenant isolation, audit logging, and retention enforcement. ### SvelteKit SEO in Production: Prerendering, Dynamic Meta Tags, and Technical SEO Lessons from Four Live Sites - URL: https://jaspero.co/blog/sveltekit-seo-in-production-prerendering-dynamic-meta-tags-and-technical-seo-les - Category: Engineering - Published: 2026-08-03 How we handle prerendering versus SSR, dynamic head management, sitemaps, structured data, and Core Web Vitals in production SvelteKit sites, with patterns from four open-sourced SvelteKit + Firebase builds. ### Firebase at Real Scale: Firestore Data Modeling, Cost Control, and When to Move Workloads Off It - URL: https://jaspero.co/blog/firebase-at-real-scale-firestore-data-modeling-cost-control-and-when-we-moved-wo - Category: Engineering - Published: 2026-08-02 How Jaspero models Firestore data for production platforms, keeps read and write costs predictable, structures security rules and indexes, and decides when a workload belongs in Postgres or BigQuery instead. ### Designing Delivery Logistics and Route Assignment for a Short Supply Chain Marketplace - URL: https://jaspero.co/blog/designing-delivery-logistics-and-route-assignment-for-a-short-supply-chain-marke - Category: Engineering - Published: 2026-08-01 How to model order batching, driver assignment, and perishable delivery windows in a short supply chain marketplace, based on four years of building Croatia's leading farm-to-table platform. ### Designing Integration APIs and Data Contracts Across Six Internal Systems - URL: https://jaspero.co/blog/designing-integration-apis-and-data-contracts-between-six-internal-systems-lesso - Category: Engineering - Published: 2026-07-30 How to design API contracts, shared data models, and event flows across a marketplace website, retailer portal, shopper app, admin panel, and BI dashboard, based on lessons from a four-year farm-to-table marketplace engagement. ### Implementing AI in Multi-Sided Marketplaces: A Technical Blueprint for Logistics and Vendor Management - URL: https://jaspero.co/blog/implementing-ai-in-multi-sided-marketplaces-a-technical-blueprint-for-logistics- - Category: Engineering - Published: 2026-07-27 Learn how to integrate AI into multi-sided marketplaces to optimize vendor management and delivery logistics. This guide covers the technical architecture for interconnected systems. ### Architecting High-Performance React Native Apps: Lessons from FinTech and Social Fitness Scales - URL: https://jaspero.co/blog/architecting-high-performance-react-native-apps-lessons-from-fintech-and-social- - Category: Engineering - Published: 2026-07-26 Learn how to scale React Native applications to millions of users by optimizing state management, minimizing bridge traffic, and implementing a robust architectural pattern for complex backends. ### The Lean AI Roadmap: A Practical Guide to Your First AI Integration - URL: https://jaspero.co/blog/the-lean-ai-roadmap-a-practical-guide-to-your-first-ai-integration-for-startups - Category: AI - Published: 2026-07-25 Learn how startups and SMEs can integrate AI into their products without wasting resources. A step by step guide to building a lean AI roadmap. ### Integrating AI into Complex Business Functions: A Technical Blueprint - URL: https://jaspero.co/blog/from-theory-to-implementation-a-technical-blueprint-for-integrating-ai-into-comp - Category: Engineering - Published: 2026-07-24 Move beyond high level concepts. Learn the technical architecture and implementation roadmap for deploying AI into complex enterprise business functions. ### Scaling AI from Proof of Concept to Production Grade - URL: https://jaspero.co/blog/beyond-the-poc-a-framework-for-scaling-and-maintaining-production-grade-ai-syste - Category: Engineering - Published: 2026-07-23 Learn how to move AI systems from a PoC to a production-grade environment by focusing on MLOps, model drift, and model monitoring, and cost optimization. ### Practical AI for SMEs: High-Impact, Low-Complexity Automations - URL: https://jaspero.co/blog/practical-ai-low-hanging-fruit-for-operational-efficiency-in-smes - Category: AI - Published: 2026-07-22 Learn how small and medium enterprises can implement AI to improve operational efficiency without massive budgets or enterprise-level transformations. ### Scaling SvelteKit: Architectural Patterns for Enterprise-Grade Web Applications - URL: https://jaspero.co/blog/scaling-sveltekit-architectural-patterns-for-enterprise-grade-web-applications - Category: Engineering - Published: 2026-07-21 Learn how to structure large SvelteKit projects for scalability and maintainability. This guide covers monorepo strategies, state management, and performance optimization for enterprise applications. ### SvelteKit vs. Next.js: Choosing the Right Framework for Your SaaS MVP - URL: https://jaspero.co/blog/sveltekit-vs-next-js-which-framework-should-you-choose-for-your-saas-mvp - Category: Engineering - Published: 2026-07-22 Compare SvelteKit and Next.js based on development speed, cost, and scalability to determine which framework best fits your SaaS MVP requirements. --- ## Contact Information - Email: info@jaspero.co - Phone: +385 91 433 6708 - Website: https://jaspero.co - Instagram: https://www.instagram.com/jaspero.co/ - LinkedIn: https://www.linkedin.com/company/jaspero-co