Software Development Engineer - AWS Cloud

Join Kingfisher Company Inc. in Lowell, MA to build cloud software that powers emergency communication and device reporting. This onsite role combines AWS Cloud development with hands-on work across serverless, event-driven systems and mobile app performance and programming applications for iOS and Android. You will play a critical, high-responsibility role within a collaborative, small-team environment, taking ownership from design through execution while staying aligned with schedule.

Compensation: USD 70,000 - 90,000 per yearly. Work location: In person, Lowell, MA 01854.

What you’ll do

• Define and support the design and development of AWS Cloud-based applications for intelligent emergency reporting systems and connected devices
• Implement and adhere to software development methodologies, translating design specifications into system designs and implementation
• Participate in design and code reviews and help refine system quality through iterative improvements
• Implement and maintain software versioning and revision control
• Analyze system design trade-offs to meet requirements
• Own and drive execution end to end while maintaining schedule compliance
• Stay current on industry changes across software engineering technologies, processes, and disciplines
• Develop and maintain a suite of performance and programming apps supporting iOS and Android environments

What you bring

• Hands-on AWS experience, including: AWS Lambda, DynamoDB, CloudWatch, and AWS IoT Core
• Experience with API Gateway and S3 (preferred)
• Experience building and maintaining serverless and event-driven architectures
• Strong proficiency in Node.js
• Solid working knowledge of JavaScript and TypeScript
• Experience designing, deploying, and supporting production AWS environments
• Familiarity with IAM and security best practices, including least-privilege access
• Experience with monitoring, logging, and troubleshooting cloud applications
• Understanding of CI/CD pipelines and automated deployments
• 1+ years of software development in a product-oriented environment
• Bachelor’s degree in Computer Science, Computer Engineering, Electrical Engineering, or related field (Master’s is a plus)

Preferred (nice to have)

• Experience with mobile application backends supporting iOS and Android clients
• Familiarity with iOS development (Swift, Xcode) or Android development (Kotlin/Java, Android Studio)
• Experience integrating mobile apps with AWS services such as API Gateway, Cognito, IoT, and AppSync
• Knowledge of RESTful APIs and/or GraphQL
• Experience with infrastructure as code (CloudFormation, CDK, or Terraform)
• Exposure to real-time messaging, MQTT, or IoT-driven systems
• Understanding of mobile authentication flows and device provisioning
• Experience working in cross-functional teams with hardware, firmware, or mobile developers

Benefits

• Competitive salary and comprehensive benefits package
• 401(k) with 401(k) matching
• Dental insurance, Health insurance, Vision insurance
• Life insurance
• Flexible schedule
• Paid time off
• Opportunity to work on cutting-edge technology in a collaborative, small-team environment

Technology areas you’ll work with

AWS (including AWS Lambda, DynamoDB, CloudWatch, AWS IoT Core), API Gateway, S3, Node.js, JavaScript, TypeScript, IAM, CI/CD pipelines, plus iOS and Android tooling. Related areas may include CloudFormation, CDK, Terraform, Cognito, AppSync, GraphQL, RESTful APIs, MQTT-driven systems, real-time messaging, and device messaging.