Senior Fullstack Engineer

About the Position

Senior Fullstack Engineer

Location: Remote Europe; Europe; Ukraine

Employment Type: Full time

Location Type: Remote

Department: Full-stack Development

Python/Django + React/TypeScript | Europe | Remote

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Brief of the Role

Our client is looking for a Senior Fullstack Engineer who owns their domain end-to-end - from API design to production UI - and operates with the autonomy and judgment that comes from real experience at scale.

This is not a role where you wait for specifications and implement them. You will own a zone of the codebase: its architecture, its quality, its technical debt, and its path forward. You make the calls within your zone. You write the tests. You ship to production and stay accountable for what happens after.

The company is in the middle of a deliberate engineering transformation - moving from AI-assisted development to AI-native operations. You will work with agentic tools daily, orchestrating AI to handle execution while you focus on architecture, judgment, and quality. The company expects every engineer to reach full agentic fluency: humans defining what correct means, agents executing against that definition, and engineers owning the outcome.

Their stack: Python, Django, and DRF on the backend; TypeScript and React on the frontend; Postgres and ClickHouse for data; AWS and Kubernetes for infrastructure. We run a modular monolith across five production Kubernetes clusters serving approximately 150 tenants at roughly 5,000 RPM. This is real-world scale with real-world complexity - not a greenfield prototype.

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Responsibilities

• Own a zone of the codebase fully - architecture, quality, documentation, and operational health.
• Build features end-to-end: API through UI.
• Write tests as part of building, not after.
• Work with agentic tools as your primary execution layer.
• Collaborate directly with product managers to clarify requirements before development starts.
• Participate in code review with rigor and speed.
• Mentor newer developers when the opportunity arises.

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Requirements

• 5-7+ years of commercial full-stack development experience
• Strong Python and Django/DRF skills with production Postgres experience under real load
• Production-level React and TypeScript
• Proven ability to own a domain without micromanagement
• Self-directed work style with direct collaboration with product managers
• Experience with multi-tenant systems, high-volume data, or complex data pipelines
• Russian as primary working language; English at professional working level
• Active use of AI and agentic tools in your development workflow

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Nice to Have

• ClickHouse or other analytical databases
• High-load systems, fintech, or similarly demanding environments
• Kubernetes, Helm, Terraform, CircleCI
• Message queues and distributed systems: Kafka, RabbitMQ, idempotency patterns

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What We Offer

• A senior team with a flat structure
• Real autonomy
• Unlimited paid time off
• Offsites twice a year
• Learning and equipment budget
• Stability
• Competitive compensation
• A company in transformation

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About the Company

You are joining during a deliberate shift to AI-native engineering. This is a chance to shape how a real engineering organization operates - not just watch it happen.