Cosmin Oros · Senior Full-Stack Engineer & Founder

I buildproductsthat ship.

Scalable architectures, production-grade AI pipelines, and automated business infrastructure. From first commit to paying customers.

Founder @ SPEC24
Cosmin-Cristian Oros, portrait

Founder, SPEC24

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Founder @ SPEC24·Engineer @ GAIM Solutions·15+ products shipped·5+ years building·B2B SaaS specialist·AI pipelines in production·iOS · Android · Web·

Selected work

Six products. Full lifecycle. In production.

01SPEC24 logoSPEC242026 – present

Your clients send chaos. Your board gets clarity.

Founder · Product · Go-to-market

SPEC24 is the AI client hub for small agencies and freelancers. Scattered client requests (emails, messages, voice notes) become organized, actionable specifications on the team board. Automatically.

I founded it and own the full stack of the business: product architecture, AI triage engine, positioning, pricing, marketing, and sales. Zero to launch, product-market fit validation, founding-member program live.

  • Branded client portal, so clients never learn a PM tool
  • AI translation across any language pair
  • Smart categorization, triage, and priority suggestions
  • Flat per-team pricing with unlimited free client seats
0→1founded, built & launched
AItriage, translation & specs
launch platforms: Product Hunt, Peerlist, Fazier
  • Next.js
  • TypeScript
  • Firebase
  • OpenAI
02Alltagshelden24 logoAlltagshelden242024 – present

An end-to-end ecosystem for the German care industry.

Full-stack engineering @ GAIM Solutions

Three applications, one system: an admin platform running the full business logic, a self-service portal for care recipients and families, and a native mobile app for caregivers in the field.

The hard parts live in the details: four-tier health-insurer budget management with automatic allocation, insurer-compliant invoice generation through LexOffice, conflict-detecting staff scheduling, and offline-capable documentation with digital signature capture.

  • 4-tier insurer budget billing, automated end to end
  • LexOffice integration for compliant invoicing
  • Offline-first caregiver app with digital signatures
  • Multi-region administration of staff, clients & budgets
3apps in one ecosystem
4-tierinsurer budget billing
100%scheduling to invoicing digitalized
  • Next.js
  • React Native
  • Expo
  • Firebase
  • LexOffice API
  • TypeScript
03Moxios Event Portals2024 – present

25+ city portals. One codebase. Content that writes itself.

AI & platform engineering @ GAIM Solutions

A multitenant platform where every city portal has its own brand, content, and complete data isolation, all running on a single codebase. An AI layer generates events, articles, and descriptions fully automatically and translates them into eight languages.

A two-pass algorithm deduplicates ingested events by title, location, and date. Dynamic Schema.org markup, hreflang, and per-domain sitemaps drive thousands of impressions and clicks every month.

  • Full multitenancy: per-domain brand & data isolation
  • AI content generation and 8-language translation
  • Two-pass event deduplication across sources
  • Programmatic SEO: Schema.org, hreflang, sitemaps
25+portals on one codebase
8languages, auto-translated
1000sof impressions & clicks monthly
  • Next.js
  • OpenAI
  • Firebase
  • TypeScript
04TenderHub2024 – present

From tender portal to project billing. One state machine.

Platform engineering @ GAIM Solutions

A lifecycle platform for public procurement: tenders are captured from official portals and driven through a 16-status state machine, from intake to bid, award, and completion.

AI extraction reads tender documents straight from PDFs, Microsoft Graph syncs project-relevant email threads into each project, and role- and region-scoped access control keeps compliance clean. Playwright end-to-end tests guard the critical workflows.

  • 16-status lifecycle state machine
  • AI document extraction from tender PDFs via OpenAI
  • Microsoft Graph e-mail sync per project
  • Role & region-scoped permissions, KPI dashboards
16lifecycle statuses
AIPDF document extraction
E2EPlaywright-tested workflows
  • Next.js
  • Firebase
  • OpenAI
  • Zustand
  • Playwright
  • TypeScript
05Submissionstool2024 – present

Every bid, every competitor, every price. Extracted and mapped.

AI & data engineering @ GAIM Solutions

A tender-analysis tool that ingests PDF bid results in any format and uses AI to extract structured pricing data from unstructured text and tables.

Interactive Leaflet maps show geographic price distribution, Recharts dashboards compare bids side by side, and centralized bidder and authority databases build competitive intelligence with every project.

  • AI price extraction from arbitrary PDF formats
  • Geographic price-distribution maps
  • Competitor positioning analysis
  • Historical bidder & authority databases
PDF→DBunstructured to structured
Mapsregional price visualization
Trendsoutliers & statistics surfaced
  • Next.js
  • OpenAI
  • Firebase
  • Leaflet
  • Recharts
  • TypeScript
06JobNinja Mobile logoJobNinja Mobile2024 – present

One codebase. Native job search on iOS and Android.

Mobile engineering @ GAIM Solutions

A cross-platform mobile app built with React Native and Expo, achieving native-quality performance from a single codebase: smart job search powered by Amazon Elasticsearch, in-app applications with document upload, and push notifications for new offers.

Multi-provider authentication through Amazon Cognito (e-mail, Google, Apple, Facebook) and 24+ API endpoints integrate the app deeply with the existing Flask backend.

  • Native iOS + Android from one codebase
  • Elasticsearch-powered smart job search
  • 4-provider auth via Amazon Cognito
  • In-app applications & push notifications
2platforms, one codebase
24+API endpoints integrated
4auth providers via Cognito
  • React Native
  • Expo
  • Tamagui
  • Amazon Cognito
  • Next.js
  • Flask

What I offer

From idea to invoice.

Product engineering for teams that want working software in production, not slideware. Open to senior roles and select freelance engagements.

01

AI-Native Product Engineering

Products where AI is the core feature, not a bolt-on: LLM-powered triage, generation, translation, and extraction, shipped inside real SaaS with fallbacks and cost control. I have done it as an engineer and as a founder.

  • LLM features in production
  • Guardrails & cost control
  • 0→1 to product-market fit
02

AI Agents & Document Intelligence

Agentic workflows that run real operations: PDFs into structured data, automated content and translation pipelines, deduplication engines, e-mail sync. Measured in hours saved per week, not demo applause.

  • PDF & document extraction
  • Automated content pipelines
  • Back-office automation
03

B2B SaaS Platforms

Multitenant architectures, role-based access control, billing integrations, state machines, dashboards. Built for the German market and beyond, compliance included.

  • Multitenancy & data isolation
  • RBAC & compliance flows
  • Billing & third-party integrations
04

Cross-Platform Mobile

React Native and Expo apps with native quality: offline-first sync, push notifications, digital signatures, multi-provider auth. One codebase, both stores.

  • iOS + Android from one codebase
  • Offline-first architecture
  • Store-ready polish

The route

Five years, compounding.

  1. 2026 – now · Remote

    Co-Founder @ SPEC24

    AI client hub for agencies. Product, engineering, marketing, sales. All of it.

  2. 2024 – now · Munich · Remote

    Software Engineer @ GAIM Solutions

    B2B SaaS platforms and production AI pipelines for the German market.

  3. 2023 – now · Remote

    Freelance Full-Stack Engineer @ B2B SaaS Product Specialist

    End-to-end product delivery for clients across web and mobile.

  4. 2023 · Timișoara

    Mobile Software Developer @ [e-spres-oh]

    Enfineo fintech app: React Native, Redux, Sentry.

  5. 2023 · Timișoara

    5G Mobile App · Summer Practice @ Nokia

    5G vs 4G network performance, real-time visualization in Kotlin.

  6. 2022 – 2023 · Timișoara

    Software Development Intern @ Continental

    Embedded C for automotive, Python test automation.

  7. 2022 – 2023 · Timișoara

    Mobile Developer @ GDSC Politehnica Timișoara

    Flutter apps, workshops, mentoring junior developers.

Education

  • 2021 – 2025

    B.Eng. Computer Science & Information Technology

    Politehnica University Timișoara

  • 2026

    Startup School

    Y Combinator

Languages

  • Romanian (native)
  • English (native level)
  • Italian (B1)
  • Japanese (N5)

Next chapter

Let's build
something that ships.

Open to senior engineering roles and select freelance projects.