Principal Software Engineer

Ametek, Inc.•Atlanta, GA

11d

About The Position

Telguard is seeking an accomplished Principal Software Engineer to provide hands-on technical leadership for enterprise web applications built with C# and .NET Core. This role will shape application architecture, establish engineering standards, and guide the design, development, testing, deployment, and support of secure, reliable software used by internal teams, customers, and external partners. The Principal Software Engineer will work across web applications, back-office services, APIs, and Microsoft SQL Server data solutions that support Telguard cellular alarm communicators and the processing of alarm events from security and fire alarm systems. The role partners closely with Product Management, Quality Assurance, other engineering disciplines, Technical Support, Customer Service, and operational stakeholders.

Requirements

.NET Core and C#
Microsoft SQL Server and advanced SQL
SQL stored procedure design, development, tuning, and troubleshooting
Enterprise web application architecture and development
RESTful API design and integration
Object-oriented design, design patterns, and clean-code practices
Automated testing, debugging, and performance analysis
Secure software development and application lifecycle practices
Bachelor’s degree in Computer Science, Software Engineering, Computer Engineering, or a related discipline, or equivalent practical experience.
Extensive professional experience designing and delivering production software, with significant depth in C#, .NET Core, web applications, and Microsoft SQL Server.
Demonstrated success serving as a technical lead or principal-level engineer for complex, business-critical systems.
Proven ability to make sound architectural decisions, communicate tradeoffs, and lead implementation across multiple engineers or workstreams.
Strong experience diagnosing reliability, security, performance, data, deployment, and integration issues across application tiers.
Experience partnering with cross-functional teams and communicating technical concepts clearly to both technical and non-technical stakeholders.

Nice To Haves

Azure Pipelines for continuous integration and delivery
Octopus Deploy for release automation and environment promotion
Internet Information Services (IIS) administration, hosting, and troubleshooting
HTML, CSS, JavaScript, and modern web application frameworks
Git-based source control and branching strategies
Application logging, monitoring, observability, and production support
JSON and XML integrations
Cloud or hybrid application deployment patterns

Responsibilities

Define and evolve the architecture of scalable, maintainable, and secure web applications and services using C# and .NET Core.
Lead technical design for integrations, RESTful APIs, back-office processing, and customer-facing web capabilities, including solutions that create or consume JSON and XML.
Provide hands-on engineering leadership through complex feature implementation, prototypes, code reviews, troubleshooting, and the resolution of high-impact technical issues.
Design and optimize Microsoft SQL Server solutions, including relational data models, queries, indexing strategies, transactions, and SQL stored procedures.
Establish and promote software engineering standards for application design, coding, source control, automated testing, security, observability, documentation, and supportability.
Guide modernization of existing applications and services, including pragmatic migration to current .NET Core technologies and modern web application patterns.
Partner with Quality Assurance to improve test strategy, automated test coverage, release confidence, and defect prevention.
Own technical quality across the delivery lifecycle, from requirements and architecture through deployment, production monitoring, incident analysis, and continuous improvement.
Strengthen build and release practices using Azure Pipelines and Octopus Deploy, and support reliable application hosting and configuration in IIS.
Mentor software engineers, facilitate technical decision-making, and raise the engineering capability of the team through clear guidance and knowledge sharing.
Collaborate with Product Managers and business stakeholders to translate product goals and operational needs into sustainable technical solutions.
Evaluate frameworks, tools, and design alternatives, balancing delivery speed with security, performance, reliability, maintainability, and total cost of ownership.
Demonstrated ability and willingness to use AI tools to improve productivity, decision-making, work quality, and to reduce costs.
The successful candidate must be able to identify appropriate AI use cases and critically evaluate AI-generated outputs.