On-site/Hybrid Internal Apps Developer (C#/.NET)

Magen David Yeshivah; New York (NY); Hybride; USD 85 000 - 115 000; Plein temps

Avantages offerts par ce poste

Competitive salary based on education/

Comprehensive benefits package

403(b) retirement plan with company-m:

Résumé du poste

Magen David Yeshivah in Brooklyn, NY is seeking an Internal Applications Developer to design and maintain internal software that supports HR, payroll, finance, and administrative operations. This full-time, on-site role begins in Brooklyn for the first 3-4 months with a path to hybrid work thereafter, reporting to the HR Director with a dotted line to the Chief Information Officer.

You will build custom web applications, integrate with ADP Payroll and NetSuite Financials, and create dashboards

Qualifications

• 2–3 years in a business/office environment in an application development role.
• Strong C# and .NET (Core / .NET 8) experience.
• Experience with ASP.NET Core (MVC, Razor Pages, or Web API).
• Experience with MS SQL Server and writing T-SQL queries.
• Experience building REST APIs, webhooks, JSON, and third‑party integrations.
• Frontend basics (HTML/CSS/JS) for clean UI.
• Ability to translate business requirements into technical solutions.
• BS in CS or equivalent practical experience.

Responsabilités

• Design, prototype, and build homegrown web applications and internal utilities for HR, payroll, finance, and admin workflows.
• Build, test, and maintain secure API integrations between SIS, ADP, NetSuite, and internal systems.
• Develop automated validation processes to ensure accurate data syncs with no duplicates or losses.
• Write efficient queries and manage database schemas across systems.
• Create dashboards, forms, reports, and workflows in collaboration with HR/finance staff.
• Ensure permissions, logging, and audit trails for sensitive systems.
• Troubleshoot bugs and provide technical support to internal users.

Connaissances

C#/.NET

ASP.NET Core

SQL Server

REST APIs

HTML/CSS/JS

Data validation

Stakeholder communication

System reliability

Formation

B.S. in Computer Science

Equivalent practical experience

Outils

IIS/Windows Server

Git

Entity Framework Core

ADO.NET

ADP / NetSuite

Description du poste

Full-time · On-site Brooklyn, NY for the first 3-4 months with an opportunity to be hybrid after that. Reports to the HR Director with a dotted line reporting to the Chief Information Officer.

We are seeking a skilled, detail-oriented Internal Applications Developer to help build and maintain the internal software that supports our organization's business, HR, payroll, finance, and administrative operations.

In this role, you will design and develop custom web applications, internal tools, and reliable data integrations. A primary focus will be connecting our internal budget, financial and employee systems with core enterprise platforms, including ADP Payroll and NetSuite Financials.

The ideal candidate has a strong foundation in software development and systems logic, enjoys building intuitive tools for internal users, and cares deeply about data correctness, security, and system reliability. The position works the same schedule as the Business Office staff working 12 months a year and through the summer months.

Key Responsibilities

• Custom Application Development: Design, prototype, and build homegrown web applications and internal utilities to streamline HR, payroll, finance, and business office workflows.

• API Integration & Architecture: Build, test, and maintain secure, reliable API integrations between our custom Student Information System (SIS), ADP, NetSuite, and other internal systems.

• Data Validation & Reliability: Develop automated validation processes to help ensure employee, payroll, and financial data syncs accurately without duplicate entries, missing fields, or data loss.

• Database Management: Write efficient queries, manage database schemas, and map data across multiple systems.

• User-Centric Tooling: Work closely with HR, finance, and administrative staff to translate business requirements into clean, practical dashboards, forms, reports, and workflows.

• Security & Auditability: Help ensure internal applications include appropriate permissions, logging, and audit trails for sensitive HR, payroll, budget, financial, and employee systems.

• Support & Maintenance: Troubleshoot bugs, investigate data issues, improve existing tools, and provide technical support to internal users.

Qualifications & Skills

• 2-3 years’ experience working in a business/office environment in an application development role

• Strong experience with C# and the .NET platform (.NET Core / .NET 8), and modern web application development.

• Experience building web applications and services with ASP.NET Core (MVC, Razor Pages, or Web API).

• Experience working with relational databases, especially Microsoft SQL Server, including writing efficient T-SQL queries and working with stored procedures.

• Experience working with REST APIs, webhooks, JSON data structures, and third-party integrations.

• Working knowledge of front-end web fundamentals (HTML, CSS, and JavaScript) for building clean, usable interfaces.

• Understanding of data integrity, validation, error handling, and reliable system design.

• Ability to collaborate with nontechnical stakeholders, gather requirements, and explain technical concepts clearly.

• Strong attention to detail, especially when working with sensitive or business-critical data.

• B.S. in Computer Science or a related field, or equivalent practical experience in software development.

Preferred Qualifications

• Experience with ADP, NetSuite, payroll systems, ERP systems, HR systems, or school administration software.

• Experience building internal business applications, dashboards, approval workflows, or reporting tools.

• Experience hosting and deploying applications on IIS / Windows Server, and familiarity with Git for version control.

• Familiarity with data-access approaches such as ADO.NET or Entity Framework Core.

• Experience modernizing or migrating older .NET applications (for example, Web Forms to ASP.NET Core) — a plus, as we are actively modernizing our systems.

• Familiarity with authentication, role-based permissions, audit logs, and data privacy best practices.

• Experience with cloud platforms, scheduled jobs, background workers, or data pipeline tools.
  

We are an Equal Employment Opportunity employer offering:

• A competitive salary will be based on education and experience

• Comprehensive benefits package

• A 403(b) retirement plan with a 5% company match

• Tuition Reimbursement

• School paid lunch.

• Continuous school-wide Professional Development

• The school year is consistent with the Jewish calendar and closed during the summer.

Now is an exciting time to join us!

About the School:

Established in 1946, the mission of Magen David Yeshivah is to ensure and globally support the continuity of Sephardic communities through education. Its vision is to develop a new, globally recognized center of excellence that prepares students to excel academically, graduate college as well as professional graduate schools, and apply their unique talents in the world to create economically independent and personally fulfilling lives.