Tech Consulting - Full-Stack C# Developer - Manager - Multiple Locations

About EY-Parthenon•Los Angeles, CA

18h•Hybrid

About The Position

Whole industries have been disrupted and transformed in recent years by rapidly evolving digital technologies. At EY, we help clients understand, architect, select, and build large‑scale modern technology solutions that power their businesses across web, mobile, cloud platforms, physical environments, and intelligent systems. Our teams span digital strategy, architecture, engineering, design, operations, and applied AI across a wide range of industries. As a Manager Full Stack Software Engineer, you will independently develop, test, and maintain high‑quality software solutions across the technology stack. You will work closely with multidisciplinary teams to deliver scalable, secure, and production‑ready applications that are increasingly shaped by intelligent, data‑driven capabilities. In this role, engineers are expected to approach problem‑solving with a modern mindset, considering how automation, AI‑assisted workflows, and intelligent features can improve system design, developer productivity, and user experience. You will help shape solutions where AI is treated as a core design consideration rather than an afterthought, while maintaining strong software engineering fundamentals. The role values adaptability across programming languages and platforms, comfort working across frontend and backend systems, and the ability to apply sound engineering judgment in evolving technical landscapes. You will take ownership of your work, contribute to system design decisions, and support solutions from inception through launch and ongoing evolution. At EY, we partner with the world’s leading organizations to adopt emerging technologies responsibly and effectively. We believe in transforming how companies operate by asking better questions, applying engineering rigor, and delivering trusted, intelligent solutions that scale.

Requirements

Bachelor’s degree in Computer Science, Software Engineering, or a related field, or equivalent experience.
5 or more years of professional software engineering experience.
Proficiency in at least one modern backend programming language, such as Python, Java, C#, or JavaScript or TypeScript.
Experience with full stack development and one or more backend frameworks or technology ecosystems.
Working knowledge of modern frontend frameworks such as React, Angular, or equivalent.
Experience designing and implementing RESTful APIs.
Strong database skills across relational and non‑relational data stores, including query optimization.
Experience using Git‑based version control and collaborative development workflows.
Comfort working in local and cloud environments, including command‑line tooling and system configuration.
Ability to independently identify, debug, and resolve issues.
Strong written and verbal communication skills.
Willingness and ability to travel based on client needs, up to approximately 25 percent.

Nice To Haves

Experience building and operating cloud‑native or microservices‑based applications, preferably on Azure or similar cloud platforms.
Hands‑on exposure to cloud services for compute, data, identity, and monitoring.
Familiarity with service‑oriented, API‑driven, and distributed system architectures, including event‑driven patterns.
Experience with containerization and orchestration technologies such as Docker and Kubernetes.
Experience designing or integrating intelligent application capabilities, including large language models, embeddings, or retrieval‑based approaches.
Comfort designing systems where AI‑driven capabilities are considered early, with an understanding of when AI is appropriate versus traditional deterministic logic.
Familiarity with AI‑assisted development workflows, agent‑based patterns, or orchestration approaches.
Understanding of security, identity, and access management in cloud environments.
Familiarity with CI/CD pipelines, DevOps practices, and production observability.
Experience supporting applications post‑launch in enterprise or regulated environments.

Responsibilities

Lead the effective management and delivery of processes, solutions, and projects, ensuring a strong focus on quality and risk management.
Engage regularly with external clients, actively participating in working sessions and leading workstreams from planning through execution and closure.
Develop solutions to complex problems, recommending changes to policies and establishing procedures that impact your work area.
Exercise judgment in selecting methods, techniques, and evaluation criteria for obtaining results.
Provide direction and feedback to team members, ensuring successful task completion.
Independently design, develop, test, and deploy end‑to‑end applications with a focus on scalability, security, and reliability.
Build and maintain backend services and APIs using modern backend programming languages such as Python, Java, C#, or JavaScript or TypeScript, across technology ecosystems including Node.js, Spring, and .NET.
Implement new features and enhancements across frontend and backend systems while optimizing performance.
Contribute to building and shipping intelligent application features, including integrations with large language models, predictive capabilities, and agent‑driven workflows.
Collaborate with cross‑functional teams to refine requirements and translate them into technical designs and functional code.
Contribute to system and application architecture, including data models, integrations, security, and cloud deployment considerations.
Participate fully in agile delivery, including sprint planning, refinement, reviews, demos, and retrospectives.
Conduct code reviews and help establish high standards for code quality, testing, and maintainability.
Create and maintain technical documentation aligned with best practices across the software development lifecycle.
Identify, troubleshoot, and resolve issues across development and production environments.
Mentor junior engineers and contribute to a collaborative, high‑performing engineering culture.
See projects through from inception to launch and continued evolution in partnership with EY and client leadership.