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Senior Full-Stack Engineer (Backend Focus, Agentic AI)
Location:
Remote
Level:
Senior
English:
Project stage:
Proof-of-concept in 2 months, followed by MVP expansion over 4 months
Project Overview
Our client is building an AI-driven learning platform that transforms technical documentation (PDFs, presentations, technical manuals) into interactive courses with automated video generation and intelligent AI tutoring. The platform serves pharmaceutical, manufacturing, and R&D sectors where subject matter experts need to convert complex technical content into training materials without relying on traditional learning and development teams.
We are looking for a Senior Full-Stack Engineer with strong backend expertise to be responsible for core backend services and agentic AI workflow integration. You'll architect and implement event-driven systems that orchestrate multi-stage AI pipelines (document extraction, content structuring, video generation), integrate external AI services, and build reliable job processing with checkpointing and error recovery.
This role requires strong full-stack development skills with a deep focus on the backend, hands-on experience in building or integrating agent-based workflows, and familiarity with LLM-based systems.
Technical Details:
- Backend: NestJS, Node.js, TypeScript
- Database: PostgreSQL (Supabase), Row-Level Security (RLS)
- AI/LLM: OpenAI API, LangChain/LangGraph, Arize AI/Phoenix
- Job Queues: Redis/BullMQ or AWS SQS
- Storage: AWS S3 with signed URLs
- Email: Resend or SendGrid
- Error Monitoring: Sentry
- Analytics: Mixpanel, Amplitude, or PostHog
- Infrastructure: AWS (Lambda, ECS Fargate, CloudFront), Docker, Terraform/Ansible
- CI/CD: GitHub Actions
- Observability: Sentry, CloudWatch
Job Highlights:
- Cutting-edge agentic AI application combining multiple AI services into cohesive workflows
- Real-world impact, helping technical experts create accessible learning content
- Opportunity to work with OpenAI, Anthropic, and specialized AI services (document extraction, video generation)
- Greenfield project with modern tech stack and architectural freedom
Team Composition:
Architect, Software Engineer, Designer, QA Engineer, DevOps Engineer, BA, Delivery Manager
Responsibilities
- Build backend services and APIs that orchestrate multi-step workflows with checkpointing and error recovery
- Design and implement agentic systems for course generation, chatbot functionality, and content processing
- Operationalize prompts and LLM workflows designed by client-side AI and instructional design experts
- Integrate third-party APIs (LLM providers, video generation) with proper rate limiting, retry logic, and cost monitoring
- Implement secure authentication flows, RBAC policies, and tenant isolation using Supabase Auth and RLS
- Write database migrations, design efficient schemas, and optimize queries for performance
- Contribute to frontend development when needed to support full-stack features
- Integrate application-level monitoring (Sentry) and analytics tools (Mixpanel/Amplitude/PostHog) with backend services
- Participate in architecture decisions, code reviews, and sprint planning
- Collaborate with the solution architect on technical design decisions
- Work with DevOps engineer on deployment requirements and observability tooling
- Partner with a frontend-focused engineer on API contracts, data models, and full-stack feature integration
Qualifications
- 5+ years of full-stack development experience with a strong backend focus (Node.js, TypeScript)
- Experience using AI-powered productivity tools (Cursor, VS Code with Copilot, or similar AI-enhanced IDEs) and LLMs for research and problem-solving (ChatGPT, Claude, etc.)
- Experience building or integrating agentic workflows or LLM-powered applications
- Hands-on experience with LangChain, LangGraph, or similar orchestration frameworks
- Familiarity with OpenAI and/or Anthropic APIs, prompt engineering, and structured output validation
- Working knowledge of React and Next.js (able to contribute to full-stack features when needed)
- Solid understanding of PostgreSQL (schema design, migrations, query optimization)
- Experience with event-driven architectures, job queues (Redis/BullMQ, AWS SQS), and asynchronous processing
- Familiarity with NestJS or similar backend frameworks (Express, Fastify)
- Experience with authentication, authorization, and multi-tenant data isolation patterns
- Strong problem-solving skills and ability to work autonomously with minimal oversight
- Clear written and spoken English for async collaboration and documentation
Nice to Have
- Experience with Supabase (Auth, RLS, Realtime)
- Familiarity with LLM observability tools (Arize AI, Phoenix, LangSmith)
- Experience designing systems for multi-LLM provider support
- Experience with document processing pipelines or OCR integration
- Knowledge of video generation APIs (Synthesia or similar)
- Familiarity with error monitoring (Sentry) and product analytics tools (Mixpanel, Amplitude, PostHog)
- Understanding of prompt engineering principles and best practices
- Experience with evaluation frameworks for LLM-generated content
- Background in EdTech, content generation, or learning platforms
- Familiarity with Tailwind CSS and modern UI development patterns
- GitHub-based workflows and conventional commits
Our Benefits
Good projects, smart colleagues, and reasonable people are a pretty good start. Add some flexibility, room to grow, and benefits that are actually useful, and we're getting somewhere.
Time for Life
- 20 paid days off and 10 paid sick days
- Paid public holidays based on your local calendar
- Remote work
Benefits You’ll Actually Use
- Health insurance from your first working day
- A $1,000 annual flexible benefits budget per person
- Use it your way across eligible categories
The Basics, Done Properly
- All the equipment you need
- A dedicated budget for software and AI tools
- Comfortable, modern offices in Lviv and Cherkasy, with relocation support to either city
Growth Without Guesswork
- Performance reviews every six months
- Career support and clear next steps from your Line Manager
- A career path based on a competency matrix
[ why us/ ]
What Keeps Us Sharp and Steady
We cut the fluff and keep it real—owning our work, refining our craft, and always leveling up. No excuses, just a team that’s in it together, pushing boundaries and delivering results.
Pragmatic
Theory’s cute, but results pay the bills. Perfect’s a fairy tale—done right is what counts.
Adult
No drama, no sugarcoating. We own our wins and our screw-ups, and treat failure like free tuition.
Craftspeople
We’re not assembly-line coders. We build, we refine, and we don’t put a fresh coat of paint on bad code.
Forever Learners
Falling behind? We leave that to others. Leveling up fast, chasing down answers, and never settling for “I don’t know.”
Great Allies
No lone wolves here. We listen before we talk, communicate like grown-ups, and make the ride better for everyone.
Didn’t Find the Right Role?
Drop your resume, and we’ll be in touch if the right opportunity comes up.
[ global team, remote freedom/ ]
Headquartered in the USA and Ukraine, but our team? We're everywhere.
We’re fully remote, so you can work wherever you’re most productive.
Costa Rica
Team Hub
USA
Strategic & Office & Team Hub
Spain
Strategic & Team Hub
Poland
Strategic & Team Hub
Romania
Team Hub
Ukraine
Office & Team Hub
Costa Rica
Bulgaria
Team Hub
Georgia
Team Hub
Armenia
Team Hub
Frequently Asked Questions
FAQ
What benefits do you offer for work-life balance?
We’re big on balance. Here’s what we offer:
- 20 paid vacation days per year
- 10 sick days
- Paid public holidays based on your local calendar
- Flexible working hours
What health and wellness benefits are provided?
Your well-being matters to us. We offer:
- Comprehensive health insurance
- An annual $1,000 Cafeteria Benefits budget that you can allocate across eligible options based on your personal needs and priorities, including healthcare, sports, mental health support etc.
What kind of professional development opportunities are available?
We’re committed to supporting your growth and continuous learning. You can take advantage of:
- Corporate English Speaking Clubs to practice English and build confidence in a collaborative environment.
- Professional development opportunities, including courses, trainings, seminars, certifications, and English lessons, which can be covered through your Cafeteria Benefits budget.
[ apply cv/ ]
Application Form
Hiring process:
01
Apply CV
Connect with our Talent Acquisition
02
HR Interview
Join a 30-60 minute interview session
03
Technical Interview
We hold a 1.5-hour interview
04
Final Interview (as needed)
Meet with key stakeholders
Diana Zherebetska HR manager
Feel free to reach out to me at
diana.zherebetska@mev.com
Thank You!
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