Senior Software Engineer

Job Title

Senior Software Developer

Employment Type: Full-Time

Work Arrangement: Onsite 4x per week

Client Location: Teaneck, NJ

Job Summary

The Senior Software Developer is responsible for the analysis, design, development, testing, implementation, and maintenance of enterprise‑scale, business‑critical applications. This hands‑on role partners closely with business stakeholders to translate operational and strategic requirements into scalable technical solutions. The position contributes to architectural decisions, system integrations, and development standards while providing mentorship and technical guidance.

Responsibilities

• Design, develop, test, implement, and maintain business‑critical applications and workflows using Microsoft .NET technologies.
• Analyze user and business requirements to define technical specifications and scalable solution designs.
• Translate functional requirements into intuitive, efficient, and maintainable application workflows.
• Develop and maintain RESTful APIs and lead integrations across internal and SaaS platforms.
• Write, optimize, and maintain SQL queries, stored procedures, and relational database structures.
• Create and maintain system design documentation, technical specifications, and architectural diagrams.
• Review peer code, architecture, and documentation to ensure quality and adherence to standards.
• Contribute to development standards including source control, CI/CD, deployment, and environment management.
• Support performance tuning and scalability initiatives for high‑concurrency applications.
• Assist in maintaining technical artifacts such as data dictionaries and application catalogs.
• Collaborate cross‑functionally with IT and business stakeholders to deliver effective solutions.
• Monitor emerging technologies and recommend improvements to enhance performance and usability.
• Maintain detailed documentation and prepare release notes for enhancements.
• Participate in critical decisions related to architecture, integrations, and software selection.

Requirements and Qualifications

• Minimum five (5) years of experience in a developer role in a full‑stack environment.
• Robust experience with C# programming and .NET 8+.
• Knowledge of SQL queries, SQL Server, and relational database technology.
• Experience with REST API development, integration knowledge, and middleware integration expertise.
• Experience developing critical applications with large concurrent user bases from a performance and scalability standpoint.
• Experience with Azure cloud services.

Preferred Qualifications

• Experience with Blazor or similar technologies such as Angular or React.
• Experience with CI/CD pipelines and Azure DevOps.
• Experience with finance and payment solutions.
• Experience with mobile app development.
• Must have experience in the analysis, design, development, testing, and implementation of enterprise‑scale apps.
• Ability to handle change, multitask, and keep up with a fast‑pace, consistently growing environment.
• Strong problem‑solving and creative skills with the ability to exercise sound judgment and make decisions based on accurate and timely analyses.
• Requirement gathering and documentation experience.
• Ability to work closely with business stakeholders and drive solutioning of requirements.
• Effective written and verbal communication.
• Experience developing or maintaining customer‑facing hybrid web applications preferred.