Advanced Software Engineer - .NET

EPAM Systems · IT Consulting & Digital Transformation · IT Outsourcing & Dedicated Teams · C# · 2 days ago
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Salary
≈ $28k – $68k per year (Estimated)
Location
In office (Pune)
Experience
12+ years exp
Employment
Full-Time

First seen by Alion on Oct 26, 2026. EPAM Systems scores D on the Alion truth index.

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EPAM Systems

EPAM Systems is an American software engineering and digital transformation company founded in 1993 by Arkadiy Dobkin and Leonid Lozner, and headquartered in Newtown, Pennsylvania. It builds custom software products, platforms and data systems for large enterprises, combining consulting and design with engineering teams distributed across Central and Eastern Europe, India, Latin America and Western Europe. Listed on the New York Stock Exchange and a member of the S&P 500, the company relocated large parts of its delivery capacity after the 2022 invasion of Ukraine and has since centred its offering on cloud modernisation and AI-assisted engineering.
epam.com · HQ: Newtown, United States · IT Consulting & Digital Transformation · IT Outsourcing & Dedicated Teams · Custom Software Development · 5000+ employees · Est. 1993
Tech stack of EPAM Systems
We are seeking a highly skilled Advanced Software Engineer with deep expertise in the .NET ecosystem to join our team.

In this role, you will design, evolve, and optimize large-scale, high-load systems while ensuring top-tier performance, security, and reliability. You will also leverage modern AI development tools to enhance productivity and code quality.

Responsibilities

  • Design, develop, and maintain large monolithic systems, ensuring scalability and long-term evolution
  • Build and optimize high-load applications using the C# / .NET ecosystem
  • Design REST APIs with a focus on scalability, versioning, and security
  • Integrate with SOAP and legacy systems as needed
  • Perform advanced MSSQL performance tuning, transaction optimization, and handle blocking, locking, and concurrency
  • Drive performance optimization, concurrency management, and fault tolerance across services
  • Implement secure communication using TLS/SSL and manage certificate handling
  • Apply secure coding practices and mitigate common vulnerabilities (OWASP Top 10)
  • Conduct threat modeling and define mitigation strategies for critical systems
  • Identify and prevent vulnerabilities such as injection attacks, authentication flaws, and data leaks
  • Leverage AI development tools and agents to generate production-quality code and tests
  • Review, evaluate, and govern AI-generated output to maintain high engineering standards

Requirements

  • 12+ years of professional software engineering experience
  • Deep expertise in the C# / .NET ecosystem
  • Proven background in designing and working with high-load systems
  • Strong skills in REST API design (scalability, versioning, security) and SOAP / legacy integrations
  • Advanced proficiency in MSSQL, including performance tuning at scale, transaction optimization, and concurrency handling (blocking and locking)
  • Showcase of designing and evolving large monolithic systems
  • Expertise in performance optimization, concurrency, and fault tolerance
  • Deep understanding of application security, including TLS/SSL, secure communication, and certificate handling
  • Familiarity with secure coding practices, OWASP Top 10, and threat modeling and mitigation strategies
  • Capability to identify and prevent vulnerabilities such as injection, authentication flaws, and data leaks
  • Strong experience using and evaluating AI development tools and agents for generating production-quality code, tests, and governing AI output
  • Proficiency in English at an Upper-Intermediate level (B2) or higher
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