• Design scalable systems and architect backend services • Be hands-on with a big-picture mindset: you'll code, but also lead technical design and explore creative applications of AI to solve real problems • Leverage AI and LLMs to automate workflows, enhance user experience, and build intelligent features that reduce manual work for our customers • Collaborate with cross-functional teams: work closely with Product and Design, from idea to delivery • Make it fast, make it last: performance and scalability matter – we handle millions of shipments every month • Build with quality and test everything

This description is a summary of our understanding of the job description. Click on 'Apply' button to find out more. Role Description - Feature Development (60%): - Build and maintain Fast API endpoints across services (control-plane, catalog-service, ai-enhancement-service) - Develop React/Next.js portal features: product registration flows, deployment status UIs, credential and configuration modals - Write Pydantic schemas and SQL Alchemy models for new features, author Alembic migration files for schema changes - Integrate Anthropic/OpenAI API calls into enhancement pipelines (description generation, endpoint scoring, embedding generation) - Write unit and integration tests with pytest; maintain code quality with Black, Flake8, and Mypy; maintain ≥80% coverage target - AI Integration (20%): - Implement Lang Chain or Lang Graph-based chains for structured tasks such as Open API spec extraction, tool summarization, and description enrichment - Work with prompt templates, few-shot examples, and structured output parsing - Assist in extending MCP server generation from Open API specs — parsing edge cases, template improvements - DevOps Fundamentals (10%): - Write and update Docker files; understand multi-stage build - Debug failing GitHub Actions steps (lint, type-check, test stages) - Use kubectl basics to inspect pod logs and deployment status in development environments - Collaboration (10%): - Participate in code reviews, giving and receiving constructive feedback - Write brief design notes for the features you ship - Pair with senior engineers on complex architectural decisions Qualifications - Backend: - Python with an async web framework (Fast API preferred); comfortable with Pydantic, SQL Alchemy, and async/await patterns - REST API design fundamentals: HTTP semantics, status codes, auth headers, Open API/Swagger specs - PostgreSQL: writes queries, understands schema design basics; some exposure to Redis or caching patterns - Containerization: can write a Docker file, understand docker compose, read basic Kubernetes manifests - Frontend: - TypeScript and React with functional components and hooks - Next.js (App Router preferred) or comparable modern React framework - Familiar with component-driven UI patterns; experience with a design system (Radix UI, Material UI, shadcn/ui, or similar) - Form handling and validation (React Hook Form + Zod or equivalent) - AI / LLM: - Has worked with at least one LLM API (Anthropic Claude or OpenAI); understands prompt construction, token limits, and API rate limiting - Exposure to Lang Chain, Lang Graph, or a comparable orchestration SDK — even in a personal project or coursework context - Understands the basics of RAG (retrieval-augmented generation): embedding, chunking, similarity search - General: - Gething, PRs, and code review etiquette - Writes unit tests, comfortable with pytest or Jest Requirements - Nice to Have: - Exposure to agent frameworks (Careway, AutoGen, Semantic Kernel) - Any cloud provider experience (OCI, AWS, Azure, GCP) - Familiarity with CI/CD pipelines (GitHub Actions) - Exposure to Open Telemetry or distributed tracing concepts - Experience with Alembic or database migration tooling - Soft Skills: - Reads existing code before proposing changes; asks clarifying questions before building - Writes clear commit messages and PR descriptions - Comfortable working in a fast-moving codebase with evolving requirements Benefits - Healthcare benefits - 401(k) plan and company match - Paid vacation time and holidays - Well-living programs - Short-term and long-term disability coverage - Basic life insurance - Tuition reimbursement

• Collaborate within your team to build new features that expand Notetaker functionality and add support for additional user types. • Contribute to platform scaling initiatives. • Meet regularly with Product and Design to fine tune requirements. • Attend agile ceremonies to help your team plan out their work and get it done. • Work across squads to improve Engineering practices at Calendly. • Review implementation plans and pull requests from your peers. • Mentor and coach other team members.

• Work on core Linux kernel subsystems — including memory management, scheduling, networking, and filesystems. • Tweak and tune container isolation mechanisms until they’re practically airtight. • Help Linux scale harder, faster, stronger. • Optimize resource usage across thousands of virtual machines and containers. • Collaborate with upstream maintainers to merge your patches into the kernel. • Representing Virtuozzo at professional conferences, such as Open Source Summit, FOSDEM, and other Linux Foundation events.