Senior Software Engineer

CBTS; Schiller Park (IL); On-site; USD 120,000 - 170,000; Full time

Job summary

CBTS in the Chicago area is seeking a Senior Full Stack Developer to drive end-to-end application development within an Agile team. You will design, build, test, and productionally support enterprise-scale apps using Next.js, TypeScript, .NET Core, and Azure Functions.

You will mentor juniors, lead projects, and shape architecture, data flows, and deployment pipelines while collaborating with product, QA, and business teams to deliver reliable, scalable software.

Qualifications

• 8+ years of enterprise software development experience.
• 6+ years building modern web applications with NextJs and TypeScript.
• 6+ years designing RESTful APIs and backend services using .NET Core/.NET 8+, C#, ASP.NET Web API, and Azure Functions.
• Strong experience with scalable microservices and distributed systems.
• Experience integrating with CRM, ERP, Oracle, and third-party systems.
• Strong SQL Server/Azure SQL skills including query optimization.

Responsibilities

• Design, develop, and test applications with product managers, analysts, QA, and architects.
• Own projects end-to-end from design through delivery and support.
• Lead database design with DBA teams and optimize performance.
• Head troubleshooting and ensure quality standards across the stack.
• Step into technical lead roles and manage stakeholder relationships.
• Mentor junior developers and drive Agile practices in the team.
• Improve observability, monitoring, and operational maturity of apps.
• Create technical documentation and conduct code reviews.

Skills

Next.js

TypeScript

.NET Core

C#

ASP.NET Web API

Azure Functions

RESTful APIs

Microservices

Azure

SQL Server

Entity Framework Core

Azure DevOps

Agile/Scrum

Mentoring

Leadership

Education

Bachelor's degree in Computer Science, Software Engineering, or related field

Tools

Azure DevOps CI/CD

SQL Server

Azure DevOps

Job description

CBTS is seeking a Senior Full Stack Developer to join an Application Development Team delivering strategic technology initiatives. This role spans the full product lifecycle — from solution design through delivery and production support — working within an Agile team. The ideal candidate brings deep hands-on expertise in modern web development and .NET backend engineering, strong project leadership skills, and the ability to mentor junior developers while driving complex initiatives to completion with minimal supervision.

Duties:

• Design, develop, and test applications in collaboration with product managers, business analysts, QA engineers, architects, DBAs, and third-party vendors
• Own projects end-to-end, from system design and programming specifications through delivery
• Partner with DBA teams to design database structures
• Lead troubleshooting and testing efforts to maintain quality standards
• Step into project/technical lead roles as needed, building and maintaining strong stakeholder relationships
• Lead project teams — managing budgets, schedules, milestones, risks, and delivery impediments
• Communicate priorities and deliverables to business partners and coach junior developers on Agile practices
• Support and continuously improve production applications, including troubleshooting performance, reliability, and data quality issues
• Improve observability, monitoring, and operational maturity of applications
• Create and maintain technical documentation, and mentor team members through code reviews and knowledge sharing

Requires:

• Bachelor's degree in Computer Science, Software Engineering, or related field
• 8+ years of enterprise software development experience
• 6+ years building modern web applications with NextJs and TypeScript
• 6+ years designing RESTful APIs and backend services using .NET Core/.NET 8+, C#, ASP.NET Web API, and Azure Functions
• Strong experience with scalable microservices and distributed systems
• Experience integrating with CRM, ERP, Oracle, and third-party systems
• Strong SQL Server/Azure SQL skills, including query optimization and performance tuning
• Experience with Entity Framework Core, Microsoft Azure cloud-native development, and Azure DevOps CI/CD pipelines
• Solid grounding in software architecture, design patterns, security, and testing strategies (unit, integration, end-to-end)
• Agile/Scrum experience with strong communication and mentoring skills

No 3rd Party Submissions**

CBTS provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, disability, genetic information, marital status, amnesty, or status as a protected veteran in accordance with applicable federal, state and local laws.”