Lead Software Engineer (AWS)

This is a hands-on role for an experienced engineer who can work across the frontend, backend, and cloud infrastructure while also guiding the technical direction of the product. You will help set priorities, make architecture decisions, and lead a small software team as the platform grows.

The role involves building applications that connect with our AWS-based IoT platform and physical emergency communication devices. We are looking for someone who has architected and supported production web applications before, can make practical technical decisions, and is comfortable taking responsibility for both the product and the engineering approach behind it., * Take ownership of the web application platform and help guide its technical direction

• Lead a small software team while remaining hands-on with development
• Design, build, and maintain full-stack web applications using React, JavaScript, Node.js, and AWS
• Work on applications that support real-time monitoring and control of emergency communication equipment
• Make decisions around application architecture, data flow, APIs, deployment, monitoring, and maintainability
• Help prioritize technical work and balance product needs with long-term engineering quality
• Work with AWS services such as Lambda, API Gateway, DynamoDB, CloudWatch, and IoT Core
• Build features that interact with physical devices using MQTT, AWS IoT, or related technologies
• Improve software development practices, including code reviews, testing, documentation, and deployment workflows
• Mentor junior and mid-level engineers as the software team grows

Do you have experience in Web services design?, * 7+ years of professional software development experience

• Experience leading technical work or guiding a small engineering team
• Strong experience building and supporting production web applications
• Strong JavaScript / TypeScript experience
• Professional experience with React or a similar frontend framework
• Backend experience with Node.js or similar server-side technologies
• Experience designing and working with APIs
• Experience with AWS or similar cloud platforms
• Strong experience with IaC such as CloudFormation / Terraform
• Good understanding of application architecture, maintainability, security, and reliability
• Ability to work independently, make technical decisions, and take ownership of a product area

Preferred experience

• AWS services such as Lambda, API Gateway, DynamoDB, CloudWatch, IAM, or IoT Core
• MQTT, WebSocket, pub/sub, or other real-time communication experience
• Experience with connected devices, hardware products, embedded systems, or IoT platforms
• Experience improving or scaling existing software applications
• Experience mentoring junior or mid-level engineers
• CI/CD, automated testing, logging, and monitoring experience
• Experience working in a small company or small engineering team environment, Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, or a related technical field preferred. Equivalent professional experience will also be considered., * Professional Web Development: 7 years (Preferred)

Ability to Commute:

• Lowell, MA 01854 (Required)

· Competitive salary

· Comprehensive benefits package

Kingfisher Company Inc. (KCi) is small, innovative electronics design and manufacturing company specializing in emergency communication equipment for the fire alarm industry. We are seeking a hands-on, highly motivated Lead Software Engineer to join our team. This position plays a critical role in ensuring the quality, efficiency, and reliability of our products, from design validation through production. If you are inspired to drive innovation and technology, Kingfisher is the place for you. At Kingfisher you will work with other passionate technical leaders and make critical contributions to the emergency communications industry and to the growth of our company.