Net Developer/Team Lead

Apex Systems is hiring two Senior .NET Engineers to support POS modernization and feature development initiatives within a large, distributed engineering environment. This role is primarily backend-focused, with a strong emphasis on business flow logic, system integrations, and end-to-end application ownership.

This position may include limited direct people management, however the primary expectation is hands-on technical contribution. Ideal candidates are actively coding today and comfortable debugging production issues, reviewing system flows, and partnering closely with engineering teams to drive execution. Responsibilities

• Design, develop, and maintain backend services supporting POS modernization initiatives
• Debug and resolve complex production issues using logs, databases, and service-level analysis
• Refine user stories through a deep understanding of business logic and application workflows
• Actively contribute code and participate in design and code review discussions
• Provide technical guidance and mentoring to engineers as needed
• Influence how teams execute work and improve system quality
• Collaborate with QA, SRE, and DevOps partner teams
• Support applications across the full software development lifecycle, including build, deployment, and long-term maintenance

Technical Environment

• Predominantly web-based systems, integrated with Android mobile platforms
• Multiple onshore and offshore agile teams operating independently
• SRE and DevOps teams engaged as partners rather than direct reports

• 7+ years of professional software development experience
• Strong hands-on experience with .NET Core in production environments
• Proven experience owning applications across the entire SDLC
• Ability to troubleshoot and maintain complex, distributed systems
• Background in environments where developers are responsible for both building and maintaining software

Required Technical Skills

• .NET Core (primary focus)
• Oracle PL/SQL scripting and database lifecycle management
• JavaScript and Vue.js (integration awareness)
• Strong computer science fundamentals
• Understanding of HTTP/HTTPS, TLS handshakes, authentication, and token validation
• General knowledge of networking and infrastructure concepts
• Experience with unit and integration testing
• Familiarity with web-to-mobile integrations, specifically Android

Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click for more details.