Senior Software Engineer

About Interstate Waste Services, Inc.

Interstate Waste Services, Inc. is a progressive provider of solid waste and recycling services in the greater New York, New Jersey and Connecticut markets.

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

Skills

• Minimum (5) five years of experience in a developer role in full stack environment
• Robust Experience with C# programming, and .Net 8+
• Knowledge on 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
• 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 and consistently growing environment
• Strong problem solving and creative skills and the ability to exercise sound judgment and make decisions based on accurate and timely analyses
• Should have requirement gathering and documentation experience
• Should be able to work closely with the business stakeholders and work towards the solutioning of the requirements
• Effective written and verbal communication
• Experience with Blazor
• Experience with CI/CD pipelines, and Azure DevOps
• Experience with finance and payment solutions
• Experience with mobile app development
• Experience developing or maintaining customer facing hybrid web applications preferred

Company Overview

Interstate Waste Services, Inc. is one of the nation’s fastest growing and most innovative solid waste collection, disposal, and recycling firms. It was founded in 1998, and is headquartered in Teaneck, New Jersey, USA, with a workforce of 1001-5000 employees. Its website is http://interstatewaste.com.

Company H1B Sponsorship

Interstate Waste Services, Inc. has a track record of offering H1B sponsorships, with 2 in 2025, 1 in 2023. Please note that this does not guarantee sponsorship for this specific role.