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Izmet B.
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Izmet B.

Full Stack Developer | SaaS Developer | Healthcare Developer

I'm a Full Stack Developer, SaaS Developer and Healthcare Developer building secure, production-ready software — from HIPAA-compliant healthcare platforms to multi-tenant SaaS products and AI-powered systems. My work sits at the intersection of web developer, backend developer, and SaaS platform builder, with a strong backend-first mindset and deep attention to compliance, scalability, and maintainability. As a Full Stack Developer, I take ownership of systems end-to-end, pairing robust Back End Developer architecture with clean Front End Developer interfaces. My frontend work is React-based, and I often replace traditional web developer or front end developer setups by owning both frontend and backend in one coherent system, deployed on AWS. I've previously worked as a WordPress developer integrating WordPress sites into custom platforms, though my current focus is custom SaaS, healthcare, and API-driven systems. As a Healthcare Developer, I specialize in interoperable, compliant healthcare software: FHIR, HL7, EHR/EMR integrations, HIPAA-ready architecture, encrypted data storage, RBAC, and audit logging. Projects delivered: a Healthcare HRMS & Facility Scheduling SaaS platform for assisted living facilities; a Medical AI Chatbot (Amazon Lex / OpenAI) for symptom checking and clinical triage; and Digital Health Platforms for mental health organizations, physical therapy programs (7,500+ exercises), and continuing medical education (12,000+ members). As a SaaS Developer, I design, build and scale multi-tenant SaaS products and API-driven platforms for long-term use. Projects delivered: Fundaactive and FlatZap — multi-portal SaaS platforms for booking management and field operations media storage — plus custom CRM/TMS/ERP systems for logistics and construction, and P2P/B2C marketplaces with AI-driven recommendations. As a Back End Developer, I build backend services, APIs and data models with Node.js, Python and PHP/Laravel, including multi-tenant architecture with Stripe billing. As a Full Stack Developer, I integrate these with Front End Developer applications and support mobile app developer workflows using React Native. Much of my SaaS Developer and Backend Developer work involves building internal platforms and API-first systems for product, growth, and analytics teams — including teams focused on SaaS marketing, with clean data pipelines and event tracking supporting experimentation and reporting. As an AI developer, AI Engineer, I integrate LLMs and generative AI into production systems: RAG-based assistants (React + Node + PostgreSQL + OpenAI), automated document/PDF processing, and computer vision tools inside SaaS and healthcare platforms — reliable, observable, and compliant rather than experimental. As a specialist in saas development and ai saas development, I help businesses turn early-stage ideas into scalable, production-ready platforms. My background spans saas business development strategy alongside hands-on engineering — including work on a b2b saas booking system developer project for scheduling and field operations, and broader experience as a full stack developer javascript saas ia, integrating AI features directly into SaaS products rather than treating them as an afterthought. Clients typically bring me in as: - a Full Stack Developer who owns frontend and backend end-to-end - a Healthcare Developer experienced with HIPAA, FHIR, and HL7 - a SaaS Developer who understands multi-tenant architecture and scalability - an AI Engineer integrating LLMs into production systems - a Back End Developer or Front End Developer for production-grade systems - a mobile app developer, web developer, or WordPress developer for legacy integrations - a SaaS marketing collaborator for data pipelines and analytics Core stack: Node.js, PHP/Laravel, Python, React, Next.js, Vue.js, PostgreSQL, MySQL, MongoDB, AWS (EC2, S3, Lambda), Docker, REST & GraphQL APIs. I regularly work on MVP builds and early-stage products, with focus on compliant, scalable foundations — taking products from discovery through launch and continuous scale. Long-term results come from clarity, compliance, and intentional system design. I deliver software teams can confidently run, maintain and scale.

🇵🇱Krakow, Poland$41/hr100% JSS4.86 (13)Since May 2017

Earnings and projects

MRR
$898

Last 6 months ÷ 6

World#52,949 / 412k
🇵🇱Country#401 / 2,852
Revenue, last 30 days
$1.3k

Last 6 months: $5.4k

World#35,013 / 412k
🇵🇱Country#284 / 2,852
Total earnings
$283k

Billed in all: $289k

World#8,617 / 412k
🇵🇱Country#174 / 2,852
Per project
$13k

$5.4k in the last 6 months

World#10,814 / 412k
🇵🇱Country#170 / 2,852
Projects, last 6 months
1
0% fixed100% hourly
World#128,092 / 412k
🇵🇱Country#866 / 2,852
Projects in all
21

Across 23 contracts

4% fixed96% hourly
World#128,797 / 412k
🇵🇱Country#943 / 2,852

Earnings, last 30 days

$289k+$1.3k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$287k$288k$289kOct 8Oct 23Nov 7

Skill rankings: Top 9% in Bootstrap

Ranked by MRR among everyone on Upwork with the skill.

  1. #67Healthcare IT359 freelancers · 🇵🇱 #1Top 19%
  2. #465Software Development2,923 freelancers · 🇵🇱 #8Top 16%
  3. #615Bootstrap6,899 freelancers · 🇵🇱 #4Top 9%
  4. #926CSS 39,914 freelancers · 🇵🇱 #21Top 9%
  5. #1,007Vue.js8,267 freelancers · 🇵🇱 #21Top 12%
  6. #1,049API7,943 freelancers · 🇵🇱 #22Top 13%
  7. #1,062API Development6,848 freelancers · 🇵🇱 #10Top 16%
  8. #1,147SaaS Development5,201 freelancers · 🇵🇱 #13Top 22%