Senior/ Lead Software Engineer - C# / TypeScript / JavaScript - Chicago Hybrid

About the Role

The Senior/ Lead Engineer drives product development from concept through completion; architects, designs, and builds software enhancements and new modules across our CRM/ERP platform; and provides senior-level strategic and technical input throughout the SDLC. This is an AI-forward role — the candidate is expected to actively integrate AI coding tools into daily development to accelerate delivery, improve quality, and raise the bar for the broader engineering team.

Responsibilities

Duties and Responsibilities include but are not limited to the following:

• Conceptualize, architect, and develop new functionality for our CRM/ERP systems, adapting to evolving business requirements.
• Leverage AI coding assistants (e.g., Claude Code, Gemini) as a core part of the daily workflow — for scaffolding, refactoring, test generation, and code review — while owning the correctness, security, and performance of the final output.
• Participate in solving production problems by analyzing and troubleshooting issues across multiple languages and systems.
• Collaborate with other developers and engineers to design, build, and maintain cutting-edge applications.
• Optimize existing code and database structures to enhance platform performance.
• Work with CI/CD pipelines, source control repositories, and DevOps tooling to manage delivery.
• Evaluate emerging AI-assisted development tools and practices and champion their adoption across the engineering organization.
• Suggest and implement industry best practices for faster, more efficient delivery of software products.
• Review and implement coding best practices, including responsible use of AI-generated code.
• Mentor and coach junior and mid-level developers, including on effective and responsible use of AI tools, and guide them through the SDLC process.
• Provide on-call support as necessary to ensure system reliability.
• Effectively and professionally communicate with other team members and stakeholders.
• Adjust priorities based on business needs and adapt to change with minimal supervision.
• Exercise sound judgment when using AI tools with proprietary code or client data, in accordance with company AI usage policy.
• Perform daily duties in line with Information Security Policies and Procedures.
• Ensure that information Confidentiality, Integrity and Privacy is always maintained with processing information assets.

AI-Forward Role Expectations

This role is expected to treat AI-assisted development as a standard part of the craft, not an occasional convenience. Candidates should be able to speak concretely about how they use AI tools day-to-day, how they validate AI-generated code before it ships, and where they draw the line on AI use for sensitive or regulated systems. Comfort mentoring others on AI-assisted workflows is a strong plus.

Qualifications and Required Skills

• 5+ years of professional software development experience, preferably in a SaaS environment.
• Multi-language development experience required, including PHP, C#.Net/ Typescript/ JavaScript
• Demonstrated, hands-on experience using AI coding tools (e.g., Claude, Gemini) in a professional software development workflow.
• 2+ years of experience with hyper-scale cloud platforms (AWS/Azure/GCP).
• Experience with database systems (MySQL/MS SQL/Oracle).
• Strong object-oriented programming experience.
• Git/Bitbucket or other source control experience.
• JavaScript + jQuery.
• XML/SOAP/REST APIs.
• HTML/CSS.
• Familiarity with SDLC processes and Agile methodologies.

What Will Make You Stand Out

• Prior experience in a SaaS product company or platform team.
• Prompt engineering or AI pair-programming techniques for improving code quality and development speed.
• Experience integrating AI/LLM capabilities into product features (not just development tooling).
• .NET framework experience.
• PHP framework experience and best practices.
• NGINX server configuration.
• Database technologies, including MariaDB, Galera Cluster, Elasticsearch, Couchbase.
• Messaging and caching systems such as RabbitMQ and Redis.
• Zookeeper for distributed system coordination.

Experience with scalable application development and optimization