Full-Stack AI Engineer (15 UA team members, startup, YC )
Madfish
Software Engineering, Data Science
Ukraine · Europe
Posted on Nov 19, 2025
WHO WE ARE
Respaid unlocks hidden B2B revenue through AI-powered debt collection.
We're a 20+ person team across the US & Europe—including 10 Ukrainian engineers—shipping weekly via Linear, LLM agents, and full-stack automation. Backed by Y Combinator and founders of Dropbox & Docker.
WHY JOIN US
- Ship AI that drives revenue — Your code impacts the bottom line from day one.
- Elite tooling & velocity — 99.9% uptime, 10–50× dev speed through Cursor, Claude Code, and n8n.
- Small, high-impact team — Zero corporate bureaucracy. Direct access to CEO/CTO.
- Clear growth path — Out-ship and out-learn your way to Staff/Lead roles.
RESPONSIBILITIES
- Build end-to-end AI features: data scraping → RAG pipelines → automated system synchronization
- Craft idempotent, rate-limit-resilient integrations with CRMs and accounting platforms
- Engineer context-rich AI responses and dynamic debt recovery orchestration
- Validate and iterate on AI outputs to ensure production-grade accuracy
- Contribute to DevOps, CI/CD, and SRE practices to maintain 99.9% uptime
- Ship code daily using PHP Laravel and Python FastAPI
- Pair with AI coding assistants (Cursor, Claude Code) for 10× throughput
- Monitor logs/metrics, resolve bugs, and automate repetitive tasks
- Collaborate with leadership on product roadmap and system architecture
YOUR PROFILE
Required:
- Strong PHP (Laravel) and Python (FastAPI) experience (OR you can learn extremely fast)
- Proven track record shipping AI-powered production systems (not research projects)
- Hands-on experience with RAG pipelines, large-scale web scraping, and prompt engineering
- Solid API integration and workflow automation skills
- Rapid context-switching ability with self-starter, ownership mindset
- Upper-Intermediate English with clear asynchronous communication skills
Nice to Have:
- Frontend development (React)
- AWS, AWS Bedrock, OpenAI Platform
- Multi-tenant SaaS architecture experience
- Email deliverability optimization and event analytics
- Infrastructure as Code (IaC), CI/CD pipelines, light SRE work
WHAT WE OFFER
- Fully remote with flexible hours (core overlap GMT+2/+3)
- Generous time off: PTO + national holidays + paid birthday off (yours and your kids')
- Private health insurance and EN/UA language courses
- Direct leadership access with zero red tape
- Fast-track promotion path to Staff/Lead for top performers
HOW TO APPLY
Step 1: Apply with one AI workflow you shipped and its measurable business impact (ROI).
Step 2: Top 1% of candidates receive a paid 2-hour AI coding challenge.
Step 3: Pass → 30-min CEO call → Offer.