Oppenheimer & Co. Inc. is hiring: .Net Web API Developer in New York
Oppenheimer & Co. Inc., New York, NY, United States
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Who We Are
Oppenheimer & Co. Inc. (“Oppenheimer”) is a leading middle‑market investment bank and full‑service broker‑dealer. With roots tracing back to 1881, the Company is engaged in a broad range of activities in the financial services industry, including retail securities brokerage, institutional sales and trading, investment banking (both corporate and public finance), equity & fixed income research, market making, trust services and investment advisory and asset management services.
Job Description
Oppenheimer & Co. Inc. is seeking a .NET Web API Developer to join our IT team in our New York office. This individual will design, develop, test, and maintain server‑side logic and APIs for our suite of financial applications. They will collaborate with front‑end developers, database administrators, and business analysts to translate business requirements into efficient, secure, and reliable software solutions. The role involves enhancing existing systems, developing new features, and ensuring seamless integration between various platforms. Expertise in managing Sybase, SQL Server, and MongoDB databases is crucial.
Responsibilities
Design, develop, and maintain high-performance and scalable .NET Web APIs using C# and the .NET Framework/.NET Core
Collaborate with cross‑functional teams to define, design, and ship new features for financial applications
Develop robust data access layers and integrate APIs with multiple database systems, including Sybase, SQL Server, and MongoDB
Write clean, maintainable, and efficient code following best practices and established coding standards
Implement unit testing, integration testing, and performance testing to ensure code quality and application stability
Troubleshoot, debug, and resolve software defects and production issues in a timely manner
Participate in code reviews to maintain code quality, share knowledge, and ensure compliance with project standards
Manage API versioning, documentation (e.g., using Swagger/OpenAPI), and deployment processes
Stay up-to-date with emerging technologies and industry trends to continuously improve development practices and application performance
Apply specific knowledge of financial systems and business processes to improve application functionality and reliability
Skills / Requirements
Experience:
Minimum of 5+ years of professional experience in .NET web development, specifically with .NET Web API, C#, and the .NET Framework/.NET Core
Proven experience working with and managing data in Sybase databases (Sybase ASE/IQ), preferred
Extensive experience with SQL Server database design, T‑SQL programming, and performance tuning
Hands‑on experience with MongoDB (or other NoSQL databases), including data modeling and query optimization
Experience with front‑end technologies (e.g., JavaScript, Angular/React) is a plus
Technical Skills
Proficiency in building RESTful APIs and microservices architecture
Strong understanding of object‑oriented programming (OOP) principles and design patterns
Experience with version control systems, preferably Git and Azure DevOps Server
Soft Skills
Strong analytical and problem‑solving skills
Excellent communication and collaboration abilities
Ability to work independently and as part of a team in a fast‑paced environment
Detail‑oriented and committed to producing high‑quality work
Preferred Qualification
Prior experience in the finance industry or working on financial software applications
Compensation
For job postings in New York City, Oppenheimer is required by law to include a reasonable estimate of the salary range for this role. This salary range is specific to the City of New York and takes into account the wide range of factors that are considered in making salary decisions including but not limited to your skills, qualifications, experience, licensure and certifications, and other business and organizational needs. A reasonable estimate of the current base salary range is $110,000.00 - $130,000.00 at the time of this posting. Also, certain positions are eligible for additional forms of compensation such as discretionary bonus.
Seniority level: Mid‑Senior level
Employment type: Full‑time
Job function: Engineering and Information Technology
#J-18808-Ljbffr
In Summary: Oppenheimer & Co. Inc. is seeking a .NET Web API Developer to join our IT team in our New York office . The role involves enhancing existing systems, developing new features, and ensuring seamless integration between platforms . The individual will design, develop, test, and maintain server‑side logic and APIs for our suite of financial applications .
En Español: Inc. (Oppenheimer ) es un banco de inversión líder del mercado medio y broker-dealer de servicios completos. Con sus raíces que se remontan a 1881, la Compañía está involucrada en una amplia gama de actividades en el sector de los servicios financieros, incluida la corretaje de valores minoristas, ventas e intercambio institucional, banca de inversiones (tanto las finanzas corporativas como públicas), investigación sobre renta fija, creación de mercados, servicios fiduciarios y asesoramiento de inversión y servicios de gestión de activos. Descripción de trabajo Offenheimer & Co. Inc. busca un desarrollador de API web .NET para unirse a nuestro equipo informático en nuestra oficina individual de Nueva York. Esto mejorará el diseño, prueba y mantendrá la lógica del lado del servidor y APIs para nuestros clientes. Experiencia en la gestión de bases de datos Sybase, SQL Server y MongoDB es crucial. Responsabilidades Diseñar, desarrollar y mantener APIs web .NET de alto rendimiento y escalables utilizando C# y el Framework / .NET Core Colaborar con equipos interfuncionales para definir, diseñar y enviar nuevas características para aplicaciones financieras Desarrollar capas robustas de acceso a los datos e integrar API con múltiples sistemas de base de datos, incluidos SybASE, SQL server y Mongo DB Escribir código limpio, mantenible y eficiente siguiendo las mejores prácticas y estándares establecidos de codificación Implementar pruebas de unidad de control, pruebas de integración y pruebas de desempeño para garantizar la calidad del código y la estabilidad de las aplicaciones Resolver, deshacer y resolver problemas de software y principios de producción de manera oportuna Participar en revisiones de códigos de calidad, compartir conocimientos y asegurar el cumplimiento de normas de administración de datos preliminares, Proyección de datos (Proyecto Open Database), Configurar habilidades y competencias técnicas de trabajo con sistemas de desarrollo de datos y servicios de Microsoft Office, mejorar continuamente el funcionamiento de una versión específica del sistema operativo de programación y otras tecnologías, así como desarrollando sus capacidades profesionales (proyectos de desarrollo). Este rango de salarios es específico para la ciudad de Nueva York y tiene en cuenta una amplia gama de factores que se consideran al tomar decisiones salariales, incluidas pero no limitadas a sus habilidades, calificaciones, experiencia, licencia y certificación, y otras necesidades empresariales y organizativas. Una estimación razonable del rango base actual de salario es $ 110,000.00 - $ 130,000.00.
Who We Are
Oppenheimer & Co. Inc. (“Oppenheimer”) is a leading middle‑market investment bank and full‑service broker‑dealer. With roots tracing back to 1881, the Company is engaged in a broad range of activities in the financial services industry, including retail securities brokerage, institutional sales and trading, investment banking (both corporate and public finance), equity & fixed income research, market making, trust services and investment advisory and asset management services.
Job Description
Oppenheimer & Co. Inc. is seeking a .NET Web API Developer to join our IT team in our New York office. This individual will design, develop, test, and maintain server‑side logic and APIs for our suite of financial applications. They will collaborate with front‑end developers, database administrators, and business analysts to translate business requirements into efficient, secure, and reliable software solutions. The role involves enhancing existing systems, developing new features, and ensuring seamless integration between various platforms. Expertise in managing Sybase, SQL Server, and MongoDB databases is crucial.
Responsibilities
Design, develop, and maintain high-performance and scalable .NET Web APIs using C# and the .NET Framework/.NET Core
Collaborate with cross‑functional teams to define, design, and ship new features for financial applications
Develop robust data access layers and integrate APIs with multiple database systems, including Sybase, SQL Server, and MongoDB
Write clean, maintainable, and efficient code following best practices and established coding standards
Implement unit testing, integration testing, and performance testing to ensure code quality and application stability
Troubleshoot, debug, and resolve software defects and production issues in a timely manner
Participate in code reviews to maintain code quality, share knowledge, and ensure compliance with project standards
Manage API versioning, documentation (e.g., using Swagger/OpenAPI), and deployment processes
Stay up-to-date with emerging technologies and industry trends to continuously improve development practices and application performance
Apply specific knowledge of financial systems and business processes to improve application functionality and reliability
Skills / Requirements
Experience:
Minimum of 5+ years of professional experience in .NET web development, specifically with .NET Web API, C#, and the .NET Framework/.NET Core
Proven experience working with and managing data in Sybase databases (Sybase ASE/IQ), preferred
Extensive experience with SQL Server database design, T‑SQL programming, and performance tuning
Hands‑on experience with MongoDB (or other NoSQL databases), including data modeling and query optimization
Experience with front‑end technologies (e.g., JavaScript, Angular/React) is a plus
Technical Skills
Proficiency in building RESTful APIs and microservices architecture
Strong understanding of object‑oriented programming (OOP) principles and design patterns
Experience with version control systems, preferably Git and Azure DevOps Server
Soft Skills
Strong analytical and problem‑solving skills
Excellent communication and collaboration abilities
Ability to work independently and as part of a team in a fast‑paced environment
Detail‑oriented and committed to producing high‑quality work
Preferred Qualification
Prior experience in the finance industry or working on financial software applications
Compensation
For job postings in New York City, Oppenheimer is required by law to include a reasonable estimate of the salary range for this role. This salary range is specific to the City of New York and takes into account the wide range of factors that are considered in making salary decisions including but not limited to your skills, qualifications, experience, licensure and certifications, and other business and organizational needs. A reasonable estimate of the current base salary range is $110,000.00 - $130,000.00 at the time of this posting. Also, certain positions are eligible for additional forms of compensation such as discretionary bonus.
Seniority level: Mid‑Senior level
Employment type: Full‑time
Job function: Engineering and Information Technology
#J-18808-Ljbffr
In Summary: Oppenheimer & Co. Inc. is seeking a .NET Web API Developer to join our IT team in our New York office . The role involves enhancing existing systems, developing new features, and ensuring seamless integration between platforms . The individual will design, develop, test, and maintain server‑side logic and APIs for our suite of financial applications .
En Español: Inc. (Oppenheimer ) es un banco de inversión líder del mercado medio y broker-dealer de servicios completos. Con sus raíces que se remontan a 1881, la Compañía está involucrada en una amplia gama de actividades en el sector de los servicios financieros, incluida la corretaje de valores minoristas, ventas e intercambio institucional, banca de inversiones (tanto las finanzas corporativas como públicas), investigación sobre renta fija, creación de mercados, servicios fiduciarios y asesoramiento de inversión y servicios de gestión de activos. Descripción de trabajo Offenheimer & Co. Inc. busca un desarrollador de API web .NET para unirse a nuestro equipo informático en nuestra oficina individual de Nueva York. Esto mejorará el diseño, prueba y mantendrá la lógica del lado del servidor y APIs para nuestros clientes. Experiencia en la gestión de bases de datos Sybase, SQL Server y MongoDB es crucial. Responsabilidades Diseñar, desarrollar y mantener APIs web .NET de alto rendimiento y escalables utilizando C# y el Framework / .NET Core Colaborar con equipos interfuncionales para definir, diseñar y enviar nuevas características para aplicaciones financieras Desarrollar capas robustas de acceso a los datos e integrar API con múltiples sistemas de base de datos, incluidos SybASE, SQL server y Mongo DB Escribir código limpio, mantenible y eficiente siguiendo las mejores prácticas y estándares establecidos de codificación Implementar pruebas de unidad de control, pruebas de integración y pruebas de desempeño para garantizar la calidad del código y la estabilidad de las aplicaciones Resolver, deshacer y resolver problemas de software y principios de producción de manera oportuna Participar en revisiones de códigos de calidad, compartir conocimientos y asegurar el cumplimiento de normas de administración de datos preliminares, Proyección de datos (Proyecto Open Database), Configurar habilidades y competencias técnicas de trabajo con sistemas de desarrollo de datos y servicios de Microsoft Office, mejorar continuamente el funcionamiento de una versión específica del sistema operativo de programación y otras tecnologías, así como desarrollando sus capacidades profesionales (proyectos de desarrollo). Este rango de salarios es específico para la ciudad de Nueva York y tiene en cuenta una amplia gama de factores que se consideran al tomar decisiones salariales, incluidas pero no limitadas a sus habilidades, calificaciones, experiencia, licencia y certificación, y otras necesidades empresariales y organizativas. Una estimación razonable del rango base actual de salario es $ 110,000.00 - $ 130,000.00.