Full Stack Engineer – Real-Time Web Apps (Java/Spring + Kubernetes + AWS)

Job Title:  Full Stack Engineer – Real-Time Web Apps (Java/Spring Kubernetes AWS)

Location: Lowell, MA

Company: Kingfisher Company Inc.

Job Overview:

We are seeking a Full Stack Software Engineer to join our team in Lowell, MA. This role focuses on building end-to-end web applications that interface with our Java/Spring and Kubernetes-based IoT platform as well as support existing AWS platform applications. You will primarily develop both user-facing web applications and the Kubernetes-backed services that power them, working across frontend, backend, and Kubernetes infrastructure to deliver real-time monitoring and control systems for emergency communication devices. This is an onsite role in Lowell, MA (no remote). U.S. work authorization required

Responsibilities:

·        Design and develop JV/Spring and Kubernetes-based applications for intelligent emergency reporting systems and devices

·        Support real-time applications that interact with physical devices via MQTT, AWS IoT Core, AWS Lambda, AWS Amplify, Dynamo DB

·        Maintain and improve existing AWS infrastructure (CloudWatch, logging, alarms, deployments)

·        Collaborate with hardware, firmware, and mobile teams to deliver cohesive system functionality

·        Participate in architecture discussions and help evolve system design

Core Skills

·        Proficiency in building full-stack web applications with Java/Spring framework, JavaScript / TypeScript and backend Nodejs is a big plus

·        Experience with React or Vue

·        Solid understanding of HTML, CSS, and responsive UI design

·        Proficiency with REST, GraphQL and WebSocket is a plus

·        Proven experience with Kubernetes backed services and AWS

Cloud / AWS Experience (important but not dominant)

·        Experience with AWS services such as:

 Lambda

 API Gateway

 DynamoDB

 IoT Core

·        Familiarity with event-driven or serverless architectures

·        Basic experience with CloudWatch, logging, and monitoring

·        Understanding of deployment workflows (CI/CD is a plus)

·        Experience with Kubernetes

Education and Experience:

·        Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering or related field is required. Master's degree in related fields would be a plus

·        2 years’ experience in Software development in a product oriented environment

Benefits:

• Competitive salary
• Comprehensive benefits package
• Opportunity to work on cutting-edge technology in a collaborative, small-team environment
• Take on a critical role with significant responsibility

About Us:

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 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. 

Location:

This is an on-site position located in Lowell, MA. 

Kingfisher Company Inc. is an equal-opportunity employer.