Backend & AI Systems Engineer
Hello, I’m
I build backends, AI integrations and automation that take repetitive work off your team.
I build the backend your product runs on, connect the AI providers and messaging channels your team already uses, and keep it running in production. Backend-first, with full-stack ownership when the product needs it.
Production backends in Go and Node.js: authentication, subscriptions and Stripe payments, MongoDB or SQL databases, concurrent workflows. Tested, containerised and deployed.
OpenAI, Anthropic and Gemini built into real workflows: personalised messages, lead qualification and decisions your team would otherwise make by hand.
One backend for every conversation: WhatsApp, SMS, email and Gmail, Messenger, Instagram, X and Telegram.
Scheduled reports, CRMs, Shopify and legacy-system sync, and data pipelines that remove repeated manual work.
Co-founder & Lead Backend Developer · 2025–present
Many conversations.
Outreach that follows your workflow.
Co-founder & Backend Developer · 2025–present
At FlowSolutions, we build custom software, automation and practical AI tools around operational problems—connecting systems and removing work that people should not have to repeat.
Independent workflows. One connected system.
LeadOps helps businesses and agencies manage lead outreach and qualification across multiple communication channels, reducing the manual work of personalising messages and keeping conversations organised.
Users create workflows that contact leads and handle conversations across WhatsApp, SMS, email, Messenger, Instagram, X and Telegram. AI integrations with OpenAI, Anthropic and Gemini support personalised exchanges and help identify which leads may be relevant to the business.
I built the Go and MongoDB backend and worked across architecture, concurrent processing, messaging and AI-provider integrations, authentication, subscriptions, Stripe payments, testing and deployment.
I built the Go backend, with MongoDB for storage, around concurrent processing, supporting multiple outreach workflows and conversations at the same time. The work involved coordinating these activities as part of a production product, beyond handling an individual message or request.
I connected the messaging channels (WhatsApp, SMS, email and Gmail, Messenger, Instagram, X and Telegram) and the AI providers (OpenAI, Anthropic and Gemini) to the application, as independently running integration services that support personalised outreach, qualification and ongoing conversations.
My scope included authentication, API security and access control. These responsibilities connect how people enter the product with which application capabilities they can use, alongside the backend's other production concerns.
I worked on subscriptions and Stripe payments as part of the product backend, connecting paid access with the application's commercial functionality.
The responsibility continued through testing, Docker and deployment. I worked across the application and its independently running integrations to prepare and operate the production system.
From a new backend to an automation that fits your existing tools.
We start with what you need built, who will use it and the tools already in place. A useful system starts with a clear problem.
I build a new backend, connect the products you already use or develop the interface around them. The stack should fit the work and the people maintaining it.
I connect the application logic, integrations and automation, then deploy it and keep it running. For larger projects, we work as a team at FlowSolutions.
Search, channel browsing and format selection, with an interface that adapted to the video’s thumbnail—even its favicon.
An early personal project, built before modern AI coding assistance became common. It supported available download formats and high resolutions, dynamic thumbnails and content filtering.
Backup, reinstall, synchronise and restore. Scripts that bring substantial parts of my working environment back together.
Configuration and browser state are part of the restoration workflow. Smaller tools handle recurring annoyances too, including authenticating against Wi-Fi captive portals.
Discord bots, personalised meetup invitations and bridges that bring posts and messages between platforms.
Small, focused utilities for community workflows: keeping information in the right place and taking repetitive steps out of everyday tools.
Backend-first, comfortable with the full product. Frontend work includes Your NFT Portrait ↗
Calculated luck, that is. From the outside, results can look like luck; behind them is the work that raised the odds. For me that means a lot of work, day and night, weekends and holidays included, with a system behind it. If a result still doesn’t come, the product needs work, not more luck. I build software the same way: tests, measurements and enough attempts that the good result becomes the likely one.
I’m studying for a BSc in Computer Science Engineering at Óbuda University, specialising in artificial intelligence, and expect to graduate in winter 2027/28. Alongside my studies, I build backend systems, integrations and automation at FlowSolutions and in my own projects.
Languages: Hungarian (native), English (B2, iTOLC), German (B2, Goethe-Institut). I work in English with most clients, and in Hungarian.
Away from software, I’m a middle-distance runner, mainly racing the 800 m and 1500 m.
PaceLab, the training diary I built for itI’m obsessed with watches: a movement is engineering you can hold in one hand, and the best designs still look right decades later. It’s the standard I want my software to meet. The dial shows the time in Budapest, where I work.
Tell me what you’d like to build or automate: a new backend, an AI integration or a workflow that fits your existing tools. For larger projects, we work as a team at FlowSolutions. I work in English and Hungarian.
Identity side. Bence Molnár, Backend & AI Systems Engineer.
