Application Engineering Senior Developer - .NET Full Stack&Integrations - EY Global Delivery Service
Ernst and Young1 day ago
Buenos Aires, ArgentinaSenior
Responsibilities
- Design and implement complex full-stack applications and enterprise integrations.
- Build API integrations, reverse integrations, batch integrations, and data flows across internal and external systems.
- Develop Angular front-end applications and integrate them with REST APIs.
- Design SQL Server solutions, including queries, stored procedures, performance tuning, and indexing.
- Implement and manage ETL and data pipelines using Azure Data Factory and/or SSIS.
- Own critical production systems, including issue triage, root-cause analysis, remediation, observability, and operational readiness.
- Support migrations, platform transitions, production waves, and release cutovers.
- Coordinate with business stakeholders, architects, and delivery teams to convert requirements into technical solutions.
- Mentor and guide engineers on integration patterns, coding standards, and operational practices.
Requirements
- 6+ years of application engineering or full-stack development experience with significant enterprise integration exposure.
- Prior experience in lead or senior technical roles with ownership of production systems.
- Strong hands-on experience with Angular version 20+, TypeScript, HTML5, CSS3, and modern JavaScript.
- Experience with Angular component architectures, reusable modules, shared UI libraries, lifecycle hooks, dependency injection, routing, state management, and RxJS.
- Strong experience with .NET, .NET Core, C#, full-stack development, and RESTful API design and integration.
- Advanced SQL Server expertise, including complex queries, stored procedures, performance optimization, and controlled production data fixes.
- Hands-on experience with Azure Data Factory and/or SSIS, batch processing, scheduling, dependency management, and scalable data pipelines.
- Experience with authentication, authorization, structured error handling, resiliency, logging, retry logic, data reconciliation, and high-volume data processing.
- Experience supporting large migrations, platform transitions, or enterprise cutovers is highly desirable.
- Ability to work independently, make technical and delivery decisions, manage high-severity production incidents, and mentor engineers.
Tech Stack
Categories
Data EngineeringFull Stack
About Ernst and Young
Ernst & Young (EY) provides audit/assurance, tax, consulting, strategy and transactions services to enterprises, financial institutions, and public‑sector clients. Structured as a global network of partner‑owned member firms, it sells professional services on a fee basis, including a dedicated Financial Services Organization for banking, insurance, and capital markets. Headquartered in London, EY was formed in 1989 from the merger of Ernst & Whinney and Arthur Young, and operates in 150+ countries.