Senior Back-End Engineer

• Create sophisticated, full-stack applications with a high level of mission-criticality for both internal and external software, and then test and publish them
• Create and implement back-end code using NodeJS/Python Lambdas, AWS Services, and DynamoDB NoSQL databases
• Collaborate with cross-functional teams including QA testing, technical product management, and UI/UX design teams to define application functionalities
• Utilize automation to overcome challenges and fulfill deadlines
• Make sure that everyone on the team follows sound software architecture principles
• Actively participate in coding and design reviews
• Conduct unit testing to deliver high-quality software
• Work primarily on the back-end infrastructure that supports customer (B2C and B2C) apps while contributing some front-end work

Job Requirements:

• Bachelor s/Master s degree in Engineering, Computer Science, Data Engineering, Data Science (or equivalent experience)
• At least 5+ years of relevant experience as a back-end engineer
• 5+ years of experience developing custom solutions or applications
• Extensive experience working with Python, AWS Lambda, TypeScript, and AWS
• Demonstrable knowledge of Node.js, DynamoDB, and NoSQL
• Familiarity with GraphQL is desirable
• Prior unit testing and test-driven development experience
• Demonstrable experience working with systematic troubleshooting and root cause analysis
• Extensive experience working with cloud services including AWS Services, Lambdas, EC2, S3, API Gateway, CloudWatch, CloudFormation, AWS CDK, SNS/SQS, StepFunctions, and EventBridge
• Prolific experience working with JavaScript/ES6, React, or another JS framework
• Excellent awareness of privacy, authentication, authorization, and caching issues
• Solid understanding of agile software development for accessible tools
• Extensive knowledge of developing large-scale distributed systems that can process millions of transactions per second
• Fluent in written and spoken English communication skills