Junior Software Engineer

Telguard is seeking a Junior Software Engineer to help design, develop, test, deploy, and support reliable back-office applications and Windows Services using C#, .NET, and .NET Core. Working with guidance from experienced engineers, this hands-on role will build foundational skills in application design, coding, testing, documentation, and production support for software used by internal teams, customers, and external partners.

The Junior Software Engineer will contribute to back-office applications, Windows 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 works with senior engineers and partners with Product Management, Quality Assurance, other engineering disciplines, Technical Support, Customer Service, and operational stakeholders.

PRIMARY IMPACT: Deliver and improve reliable .NET back-office applications and Windows Services through hands-on design, coding, testing, deployment, production support, and technical collaboration.

Key Responsibilities:

• Develop, enhance, test, and support maintainable and secure applications and services using C#, .NET, and .NET Core under the guidance of experienced engineers.
• Contribute to Windows Services, back-office processing solutions, integrations, and RESTful APIs, including solutions that create or consume JSON and XML.
• Deliver well-defined features and bug fixes through hands-on coding, participation in technical design and code reviews, testing, troubleshooting, and support for production issues.
• Develop and maintain Microsoft SQL Server queries, stored procedures, and basic relational data solutions; learn to apply indexing and transaction practices with guidance.
• Follow established software engineering standards for coding, source control, testing, security, logging, documentation, and supportability.
• Assist with modernizing existing applications and services using current .NET and .NET Core technologies and established application patterns.
• Work with Quality Assurance to execute test plans, improve automated test coverage, support release confidence, and prevent defects.
• Contribute to technical quality throughout the delivery lifecycle by clarifying requirements, implementing approved designs, testing changes, supporting deployments, monitoring applications, and learning from incidents.
• Use Azure Pipelines and Octopus Deploy according to established procedures to support builds, deployments, configuration, and environment promotion.
• Seek and apply technical guidance, share knowledge gained, and participate constructively in design and code reviews.
• Collaborate with engineers, Product Managers, and business stakeholders to understand product goals and operational needs and implement well-scoped technical solutions.
• Learn to evaluate implementation alternatives and tradeoffs involving delivery speed, security, performance, reliability, and maintainability.

Technical Skills:

REQUIRED SKILLS

OTHER RELEVANT SKILLS

• .NET and .NET Core

• C#

• Windows Services

• Back-office application development

• Microsoft SQL Server

• SQL stored procedure development and basic troubleshooting

• Object-oriented programming and clean-code fundamentals

• Unit testing, debugging, and basic performance analysis

• Secure software development fundamentals and application lifecycle awareness

• Octopus Deploy for release automation and environment promotion

• Azure Pipelines for continuous integration and delivery

• RESTful API design and integration

• Internet Information Services (IIS) hosting and troubleshooting

• Git-based source control and basic branching workflows

• Application logging, monitoring, observability, and production support

• JSON and XML integrations

• Cloud or hybrid application deployment patterns

Qualifications and Experience:

• Bachelor’s degree in Computer Science, Software Engineering, Computer Engineering, or a related discipline, or equivalent practical experience.
• Entry-level professional experience, internships, academic projects, or equivalent hands-on experience developing software using C#, .NET, or .NET Core; exposure to Windows Services and Microsoft SQL Server is preferred.
• Demonstrated ability to complete well-defined software assignments through internships, academic work, personal projects, or professional experience.
• Ability to learn from feedback, communicate progress and technical questions clearly, and complete assigned work with appropriate guidance.
• Foundational troubleshooting skills and a willingness to learn how to diagnose application, data, deployment, and integration issues.
• Ability to collaborate effectively and communicate technical concepts clearly to technical and non-technical colleagues.
• 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.

Junior Engineering Expectations:

• Demonstrate curiosity, professionalism, collaboration, and consistent follow-through on assigned work.
• Ask clarifying questions, break well-defined requirements into manageable tasks, and escalate uncertainty promptly.
• Participate in design and code reviews, apply feedback, and build understanding of team standards and system architecture.
• Manage assigned priorities with guidance and communicate risks or blockers early.
• Build ownership habits for quality, security, documentation, operational readiness, and continuous improvement.

Success in This Role:

• Back-office applications and Windows Services become easier to extend, test, deploy, monitor, and support.
• Assigned changes follow established application designs and engineering practices.
• Database queries and stored procedures are correct, tested, and aligned with application needs.
• Build and release workflows are reliable, repeatable, and appropriately automated through Azure Pipelines and Octopus Deploy.
• Assigned features and fixes are delivered with appropriate quality, testing, documentation, and support from the engineering team.

This position is based at Telguard’s Atlanta headquarters and is intended for an early-career software engineer who is ready to build technical expertise through hands-on delivery, coaching, and team collaboration.