EPAM Systems

Architect / Principal Software Engineer

EPAM Systems • $160K — $190K *
Information Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • 10+ years of software engineering experience, focusing on distributed backend systems.
  • 6+ years of Python experience, particularly with FastAPI and AsyncIO.
  • 3+ years of experience building production systems with LLMs and related APIs.
  • Hands-on experience with stateful agent frameworks like LangGraph.
  • 3-4 years of React and TypeScript experience for UI code review.
  • Production AWS experience, including EKS, ECS, and Lambda.
  • Strong understanding of authentication and security fundamentals, including OAuth 2.0.

Responsibilities

  • Set architectural direction for AI pods, balancing model capabilities and operational complexity.
  • Engage in hands-on coding, focusing on backend AI services and orchestration patterns.
  • Design agent workflows with low latency and predictable error handling.
  • Establish shared standards for Model Context Protocol servers and context management.
  • Collaborate with security and infrastructure teams to enforce secure execution practices.
  • Define observability requirements and service-level objectives for AI services.
  • Mentor staff and senior engineers through design reviews and technical guidance.

Benefits

  • Flexible work environment with opportunities for remote collaboration.
  • Access to cutting-edge AI technologies and tools.
  • Professional development and mentorship opportunities.
  • Collaborative culture with cross-functional teams.
  • Focus on innovative projects that impact the future of AI.
Full Job Description
Architect / Principal Software Engineer We are looking for an Architect / Principal Software Engineer to lead the technical direction of our AI Engineering pods. You will split your time between hands-on engineering (about 30% to 40% prototyping core workflows, building reference implementations, and reviewing code) and higher-level system architecture, technical standards, and mentorship across teams. You will work closely with US-based Product, Security, Data, and Infrastructure teams to make sure our agentic systems are reliable, fast, and secure. Your main focus will be designing predictable multi-agent workflows, low-latency LLM orchestration services, and retrieval pipelines that run cleanly in production. Req.#[redacted] Responsibilities Set architectural direction across multiple AI pods, making clear trade-offs between model capabilities, cost, latency, and operational complexity Spend roughly a third of your time in code: writing backend AI services, building orchestration patterns, and defining integration contracts with frontend teams Design agent workflows with streaming responses, predictable error handling, and low latency for chat and automated tasks Establish shared standards for Model Context Protocol (MCP) servers, tool schemas, and context management Work with Okta Security and Infrastructure to enforce least-privilege tool execution, tenant isolation, and secret handling within agent loops Define observability requirements and service-level objectives, including tracing with tools like LangSmith or Arize Phoenix Mentor Staff and Senior engineers through direct design reviews and technical guidance Requirements 10+ years of software engineering experience, with a background in designing, scaling, and operating distributed backend systems 6+ years of Python experience, especially with FastAPI, AsyncIO, and modern typing practices. Python is our primary language for backend and AI services 3+ years building production systems with LLMs, including LangChain, LangGraph, AWS Bedrock, Anthropic Claude, or OpenAI APIs. Candidates with classical ML backgrounds (PyTorch, scikit-learn) who moved into generative AI architectures are welcome Hands-on experience with LangGraph or similar stateful agent frameworks, particularly managing state graphs, loops, checkpointing, and human-in-the-loop steps 3 to 4 years of React and TypeScript experience, enough to review UI code, understand frontend state, and ensure streaming APIs work cleanly with the web client Production AWS experience, including EKS or ECS, Lambda, Bedrock, S3, Docker, and Terraform or OpenTofu Authentication and security fundamentals, specifically OAuth 2.0, OIDC, and secure credential handling Nice to have Practical experience building custom MCP servers and defining tool discovery patterns Experience migrating from older retrieval systems (such as Amazon Kendra) to vector platforms like OpenSearch, Pinecone, or Qdrant Experience handling multimodal data (images, documents) within LangGraph state Background in Identity and Access Management (IAM) or Customer Identity (CIAM)

About EPAM Systems

EPAM Systems, Inc. is a leading global provider of digital platform engineering and development services. The company has a strong presence in North America, Europe, and Asia, and serves clients in a variety of industries, including financial services, healthcare, and retail. EPAM's services include software engineering, product development, and digital platform engineering, and the company has a reputation for delivering high-quality solutions that help its clients achieve their business goals. EPAM has been recognized as a leader in the digital services industry by a number of independent research firms, and the company has won numerous awards for its work.
Learn more about EPAM Systems
Size
58,824 employees
Market Cap
$18.2 billion
Industry
Net Income
$327.1 million
Founded
1993
5 Year Trend
+26.5%
Revenue
$2.6 billion
NASDAQ

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