Principal AI System Engineer

Atari; Delhi; Hybrid; INR 1,500,000 - 2,000,000; Full time

Job summary

Atari is seeking a skilled professional to architect and build AI systems that automate complex workflows. This role involves end-to-end responsibilities from design through implementation, ensuring successful integration with existing tooling.

The ideal candidate will have proven expertise in AI systems, hands-on experience with Claude Code, and a solid background in Python engineering. The position is full-time with a hybrid work model based in Delhi, India.

Qualifications

• Proven track record of building production AI automation systems from scratch.
• Hands-on expertise with Claude Code and MCP server configuration.
• Experience building internal CLI frameworks that improved efficiency.

Responsibilities

• Own end-to-end architecture of AI automation systems.
• Design and build internal CLI frameworks and reusable libraries.
• Integrate AI systems with external tooling and monitor production.

Skills

Production AI automation systems

Claude Code

MCP server configuration

Prompt engineering

Python engineering

Cloud platforms (AWS, Azure, GCP)

Tools

LangChain

LangGraph

LlamaIndex

Job description

Employment Type: Full-Time (Hybrid)

Reports to: Senior Director of Technology, India

About the Role

Architect, build, and own AI systems that automate expert-intensive technical workflows end-to-end — from CLI frameworks, MCP servers, and agent tooling through to production deployment, business outcome tracking, and continuous improvement. You solve real business problems with AI, ensure solutions are fully implemented and adopted, and measure whether they are actually working.

Responsibilities

• Own end-to-end architecture of AI automation systems: workflow decomposition, component communication, human checkpoints, and failure behaviour
• Design and build internal CLI frameworks, reusable libraries, and agent scaffolding
• Author and maintain agent instruction files (SKILL.md, CLAUDE.md, system prompts) and MCP server definitions
• Configure Claude Code and Codex CLI environments: MCP wiring, tool permissions, slash commands, and engineering standards
• Evaluate and document architectural trade-offs across reliability, latency, cost, and maintainability
• Build production‑grade AI pipelines in Python: orchestration, structured prompting, context assembly, schema validation, and retry strategies
• Integrate AI systems with external tooling — version control, build pipelines, SDKs, compliance databases, internal APIs
• Design context assembly: how domain knowledge, runtime state, retrieved documents, and tool outputs compose into the precise input each pipeline stage needs
• Build and operate multi‑agent systems: orchestrator‑worker patterns, agent memory, structured handoffs, and conflict resolution

Prompt & Context Engineering

• Design, version, and maintain system prompts and agent instructions as first‑class engineering
• Own output schema design and prompt regression testing with a maintained ground‑truth eval set
• Engineer context windows with precision — balancing accuracy, token cost, and latency through compression and selective retrieval
• Partner with the RAG Engineer to define retrieval requirements — what knowledge is needed, under what conditions, and at what granularity
• Build and maintain structured runtime knowledge assets: curated document corpora, rule sets, decision trees, and validation reference libraries
• Work with domain experts to translate specialist knowledge into agent behaviour: decision logic, edge cases, and failure modes

Evaluation & Reliability

• Build and own the evaluation framework: test suites, regression benchmarks, LLM‑as‑judge pipelines, and per‑stage quality metrics
• Implement production monitoring using LangFuse, Arize, or equivalent — latency, token usage, success rates, and output quality drift
• Run structured failure analysis and implement targeted fixes across context assembly, orchestration, and tool integration
• Define automation rate as a first‑class metric and report on business effectiveness of deployed systems

Governance & Technical Leadership

• Implement full audit trails — inputs, tools called, outputs, and human review triggers
• Enforce versioning of all agent instructions and system prompts as engineered artefacts with controlled rollout
• Set the technical standard for AI development across the organization — architecture patterns, eval practices, and quality gates
• Collaborate with engineering, product, and domain teams; engage leadership on roadmap priorities and technical risk.

Requirements

• Proven track record of building production AI automation systems from scratch — end‑to‑end from architecture through deployment.
• Hands‑on expertise with Claude Code, Codex CLI, Cursor, or equivalent — including MCP server configuration and agent instruction authoring
• Experience designing and deploying MCP servers and custom tools: tool schema, authentication, and permission boundaries
• Experience building internal CLI frameworks, agent scaffolding, and reusable libraries that others build on.
• Experience creating internal tooling and automation that measurably improved engineering team efficiency — reducing manual processes and accelerating workflows
• Experience working with data scientists and domain experts to implement AI solutions that measurably improved team productivity
• Deep prompt and context engineering: system prompts, few‑shot design, chain‑of‑thought, token budget management, and prompt versioning
• Proficiency with LLM orchestration frameworks — LangChain, LangGraph, LlamaIndex, AutoGen, or equivalent
• Experience building AI evaluation frameworks: test suites, regression benchmarks, LLM‑as‑judge, and production quality monitoring
• Production Python engineering: modular, testable, well‑logged code with proper error handling
• Cloud platform experience (AWS, Azure, or GCP): deploying and monitoring AI workloads with containerisation
• Experience integrating AI systems with external APIs — tool definition, permission management, and failure handling
• Experience defining and tracking AI productivity metrics: automation rate, time‑to‑completion, and human intervention rate

Bonus Points

• Experience in gaming: game development pipelines, Unity/Unreal engine architectures, or platform certification processes
• Familiarity with game engine scripting, asset pipelines, or platform SDKs (Xbox GDK, PlayStation SDK, or similar)