Software Engineer - Back End - Remote, Hybrid, & HQ Options

Applicants must be authorized to work for ANY employer in the U.S. We are unable to sponsor or take over sponsorship of an employment Visa at this time.

Are you passionate about driving technological advancements and solving complex challenges? We are seeking a skilled Software Engineer - Back End to join our dynamic team dedicated to driving impactful innovation. If you hold experience with Kafka and Airflow, Cloudflare Workers, understand serverless architectures, hold deep PHP knowledge, and are proficient in SOL ad system optimization, it’s as if this opportunity was created just for you!

Position Summary:

As a Software Engineer - Back End at Delta Defense, you will play a key role in the design, development, and deployment of innovative software solutions. Collaborate closely with cross-functional teams to translate business requirements into technical specifications and deliver robust, scalable, and high-performance software applications. 

Your responsibilities will include coding, testing, debugging, and maintaining software systems to ensure they meet quality and security standards. Additionally, you will have the opportunity to contribute to architectural decisions, participate in code reviews, and continuously improve our development processes.

Essential Duties and Responsibilities:

• Software Development: 
  • Design, implement, and maintain scalable PHP APIs. Focus on RESTful services, ensuring high availability, security and performance. Integrate APIs with both internal and external systems, enhancing data exchange and service orchestration.
  • Develop and manage Kafka consumers that process large volumes of data. Utilize Apache Airflow to orchestrate workflows, manage dependencies, and schedule tasks for consumers:
    • Create Python processes to define and manage data pipelines.
    • Ensure data integrity and reliability by monitoring Kafka consumer lags, handling data reprocessing, and implementing retry mechanisms.
    • Optimize data flow for real-time processing and batch operations.
  • Work with Cloudflare’s serverless platform to:
    • Build edge computing solutions that reduce latency and improve application performance.
    • Implement serverless functions for tasks like API gateway, data validation, or authentication at the edge.
    • Utilize Cloudflare’s infrastructure for global load balancing, CDN, and security features, ensuring robust and secure API deployments.
• Integration, and Optimization: Integrate PHP with Kafka and Airlow to create a seamless back end ecosystem. Optimize the interaction between services, focusing on throughput, latency, and resource efficiency. Implement caching strategies, database optimizations, and other performance enhancements.
• Collaboration: Collaborate closely with front end developers, product managers, and other back end engineers to ensure cohesive system design and implementation. Participate in code reviews, share knowledge, and contribute to architecture decisions.
• Quality Assurance: Write unit and integration tests to ensure code reliability. Engage in troubleshooting, debugging, and optimization of existing systems.
• Documentation and Training: Document API’s, workflows, and system interactions. Provide training or guidance to junior engineers or team members new to the tech stack.

Skills/Abilities and Education Requirements:  

• Applicants must be authorized to work for ANY employer in the U.S. We are unable to sponsor or take over sponsorship of an employment Visa at this time.
• Strong proficiency in PHP required.
• Deep understanding of RESTful API design and implementation.
• Experience with Apache Kafka, including consumer and producer patterns.
• Knowledge of Apache Airflow for workflow management and orchestration.
• Familiarity with Cloudflare Workers or similar serverless patterns.
• Comfortable with Git for version control and CI/CD practices.
• Excellent problem-solving skills and the ability to manage complex distributed systems effectively.
• Strong communication skills to foster collaboration and drive successful team outcomes.
• High school diploma or equivalent is required. 
• Degree in Information Technology, Business, Software Engineering or related field preferred. Equivalent professional certification and/or equivalent work experience may be considered. 
• Demonstrates the Core Values of Delta Defense, LLC.

Preferred Skills/Experience:

• Knowledge of additional languages like JavaScript or Python for broader backend capabilities is a plus.
• Experience with Docker and Kubernetes for containerization and orchestration.
• Experience with microservices architecture, event-driven systems, or domain driven design.

While we welcome applications from candidates who desire to work remotely, we offer preferred consideration to those who can work at our beautiful headquarters in West Bend, Wisconsin. For those opting for a hybrid schedule, this involves working in-office three days a week. 

Delta Defense, LLC is the private company that provides Marketing, Operations and Customer Service for the USCCA. The USCCA safeguards life, freedom, and finances for responsible American protectors. Learn more about the USCCA at https://www.usconcealedcarry.com/

Why YOU should Work at Delta Defense!

• 23 Days of Personal Time Off, 8 company holidays, plus paid day of volunteer service annually
• Personal protection, fitness, and home office reimbursement program ($500 annually)
• Robust insurance coverage options: Medical, Dental, Vision, HSA, FSA, Life, STD, & LTD
• Nationally recognized in 2025 as number 25 on The Wall Street Journal Top 100 list of America's Most Loved Workplaces!
• Nationally recognized in 2023 and 2024 as a Newsweek Top 100 America’s Most Loved Workplace!
• Named on Inc. 5000 “Fastest Growing Private Companies” list 14 years in a row!

Benefits information can be reviewed at: https://www.deltadefense.com/careers

Salary range $77,000 - $95,000 based on experience. This role is also bonus-eligible for company incentive plan. 

Anticipated application close: 01/09/2026

PM19

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Equal Opportunity Employer
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.