Must-have skills
Foundations
• Python; FastAPI; Pydantic; OpenAPI-minded API design.
• API implementation validation, structured errors, timeouts, health/readiness, environment-based config.
• AuthN/AuthZ on APIs OIDC-derived identity, API keys, route guards, least-privilege gates.
• Support for API client management backends CRUD, key expire/rotate patterns, audit events, user/role checks.
• Postgres SQL, migrations (Alembic and/or Prisma), connection config.
• LangChain / LangGraph for simple workflows; operational triage of D&A agents (config, dependencies, queues,
streams, provider errors).
• Langfuse and / or LangSmith (or similar) navigate traces, correlate request IDs with API/SSE logs, spot provider errors,
timeouts, and bad tool-call patterns.
• API Gateway / Lambda / SAM hands-on.
• EventBridge, Kafka, Weaviate awareness.
• Terragrunt leaf edits with SRE guidance (deeper Terragrunt/Atlantis for P4).
• Cloudflare Workers.

Virtusa is a global product and platform engineering services company that makes experiences better with technology. We help organizations grow faster, more profitably, and more sustainably by reimagining enterprises through domain-driven solutions. We combine strategy, design, and engineering, backed by unmatched expertise at the intersection of industry, business, and technology to generate real-world business impact for clients.
Headquartered in Massachusetts with global delivery centers, Virtusa provides a broad range of services, solutions, and assets, including strategy and design, AI advisory and services, digital engineering, data and analytics, digital assurance, cloud and security, cx transformation and managed services across industries such as financial services, healthcare, communications, media, entertainment, travel, manufacturing, and technology.