Senior Software Engineer |Back|End|

  • Category: IT Engineer & Developer Jobs
  • Location: Bolingbrook, Illinois
  • Job Type: Full Time / Part Time
  • Salary: Estimated: $ 21K to 32K
  • Published on: 2025/09/21

Job highlights
Identified by Google from the original job post
Qualifications
8+ years of experience in software development with Object-Oriented programming languages including .NET (C#/VB.NET)
Extensive experience in APIs and JSON (6+ years)
Experience with front-end technologies like React, JavaScript, TypeScript, CSS and HTML
Strong experience with relational databases like Microsoft SQL Server or Oracle (5+ years)
Experience with cloud platforms such as AWS, including basic infrastructure knowledge, RDS, CloudWatch, Containers, CDN, and HA/DR concepts (5+ years)
Expertise in building features integrating with external services over APIs
Extensive experience working in an Agile development environment
Demonstrated ability to handle multiple tasks and priorities effectively
Solid understanding of microservices architecture and ORM frameworks
Proven track record of mentoring junior engineers and leading technical projects
Strong knowledge of how to build and maintain distributed applications
Familiarity with CI/CD pipelines and DevOps practices
Responsibilities
In this role, you'll be developing and implementing advanced technical solutions that give our client a competitive advantage
As a senior member of the development team, your expertise will make a significant impact on existing projects and future plans
Along with developing and improving the existing ERP system, you will be architecting new tools and mobile applications in a cloud-based environment
The ideal candidate is a highly experienced developer capable of delivering substantial business value to internal and external stakeholders and mentoring junior engineers
Lead the design, development, testing, deployment, support, and maintenance of a custom-developed suite of .NET applications based on business requirements using approved technologies and coding standards
Collaborate with stakeholders to define new features and drive their implementation
Identify and independently resolve complex software defects to ensure the reliability of existing software systems
Ensure high code quality through comprehensive unit testing and code reviews
Mentor and guide junior developers, ensuring the timely completion of development tasks and projects while adhering to company standards
Provide technical leadership in adopting industry best practices and emerging technologies
Architect and develop scalable and maintainable solutions, focusing on microservices architecture and distributed application design
Design, optimize, and maintain complex SQL queries and database schemas to ensure efficient data retrieval and storage, contributing to the stability and performance of our systems
Job description
Job Description

Our client is seeking a Senior Software Engineer to join our growing Software Engineering Team. In this role, you'll be developing and implementing advanced technical solutions that give our client a competitive advantage. These systems are the engine that drives the company and will continue the company's year-over-year growth. As a senior member of the development team, your expertise will make a significant impact on existing projects and future plans. Along with developing and improving the existing ERP system, you will be architecting new tools and mobile applications in a cloud-based environment. The ideal candidate is a highly experienced developer capable of delivering substantial business value to internal and external stakeholders and mentoring junior engineers.

Duties & Responsibilities
• Lead the design, development, testing, deployment, support, and maintenance of a custom-developed suite of .NET applications based on business requirements using approved technologies and coding standards.
• Collaborate with stakeholders to define new features and drive their implementation.
• Identify and independently resolve complex software defects to ensure the reliability of existing software systems.
• Ensure high code quality through comprehensive unit testing and code reviews.
• Mentor and guide junior developers, ensuring the timely completion of development tasks and projects while adhering to company standards.
• Provide technical leadership in adopting industry best practices and emerging technologies.
• Architect and develop scalable and maintainable solutions, focusing on microservices architecture and distributed application design.
• Design, optimize, and maintain complex SQL queries and database schemas to ensure efficient data retrieval and storage, contributing to the stability and performance of our systems.

Requirements
• 8+ years of experience in software development with Object-Oriented programming languages including .NET (C#/VB.NET)
• Extensive experience in APIs and JSON (6+ years)
• Experience with front-end technologies like React, JavaScript, TypeScript, CSS and HTML
• Strong experience with relational databases like Microsoft SQL Server or Oracle (5+ years)
• Experience with cloud platforms such as AWS, including basic infrastructure knowledge, RDS, CloudWatch, Containers, CDN, and HA/DR concepts (5+ years)
• Expertise in building features integrating with external services over APIs
• Extensive experience working in an Agile development environment
• Demonstrated ability to handle multiple tasks and priorities effectively
• Solid understanding of microservices architecture and ORM frameworks
• Proven track record of mentoring junior engineers and leading technical projects
• Strong knowledge of how to build and maintain distributed applications
• Familiarity with CI/CD pipelines and DevOps practices


Company Name: Phaxis

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