Filip Kriuk

Work

AI Engineer · KI Kombinat GmbH

Jan 2026 – present · Contract · Remote

Engineering on a production AI voice agent SaaS platform. Full-stack work on the infrastructure that makes LLM-based products reliable at scale.

Built real-time voice pipelines and Twilio telephony integrations. Designed LLM evaluation harnesses and observability for production model behavior. Shipped Stripe-based billing with usage metering, phone number provisioning, and notification systems. Owned authentication, onboarding, and account infrastructure end-to-end.

Stack: TypeScript, Node.js, Python, Next.js, PostgreSQL, Twilio, Stripe, OpenAI APIs, Redis, Docker, Zustand.

Founding Engineer · Envision Labs

Mar 2025 – Jan 2026 · Contract · Remote

Founding engineer on Token Select, a crypto launchpad platform built from scratch. Core engineering team of two full-stack engineers, with a non-technical founder and a contracted blockchain developer for smart contract work.

Owned the frontend across the platform along with significant portions of the backend, and acted as primary technical interface with the founder — translating product vision into scoped technical plans and coordinating delivery under shifting requirements.

Shipped across multiple verticals: AI-powered creative tooling, on-chain financial primitives, real-time data dashboards, and a customizable bot platform with premium tiers.

Stack: TypeScript, React, Next.js, Node.js, Hono, PostgreSQL, Fal APIs, Web3 integrations, Telegram Bot API.

Full-Stack Engineer · OSINT

Feb 2023 – Dec 2024 · Full-time · Remote

Worked on a cybersecurity OSINT product. Built real-time data dashboards and dynamic filtering for end users. Won a Big Data hackathon during this period.

Stack: JavaScript, Web Components, Node.js, SQL.

English Teacher · Self-employed

Jan 2023 – Feb 2026 · Part-time · Remote

Taught 50+ students of varying proficiency levels. Built client base entirely through referrals. Eventually wound it down to focus on engineering full-time.


Full work history on LinkedIn.