Sr. Software Engineer (AWS) - Backend

About Zeller

At Zeller, we’re champions for businesses of all sizes, and proud to be a fast-growing Australian scale-up taking on the ambitious goal of reimagining business banking and payments.

We believe in a level playing field, where all businesses benefit from access to smarter payments and financial services solutions that accelerate their cash flow, help them get paid faster, and give them a better understanding of their finances. So we’re hard at work building the tools to make it happen.

Zeller is growing fast, backed by leading VCs, and brings together a global team of passionate payment and tech industry professionals. With an exciting roadmap of innovative new products under development, we are building a high performing team to take on the outdated banking solutions. If you are passionate about innovation, thrive in fast-paced environments, embrace a challenge, hate bureaucracy, and can’t think of anything more exciting than disrupting the status-quo, then read on to learn more.

Role , Responsibilities and experiences :

• Analytical and be able to work with fuzzy requirements
• Methodologically translate discussions with stakeholders, documents, own researchfindings into technical designs and implementation stepsPrior
• Experience in handling a team of software engineers.Build to last and go production mindset versus build as proof-of-concept
• Strong background in softwareengineering and design patterns Experience in microservices and serverless architecture
• Knowledge in architecture patterns such as; CQRS, event-sourcing Design, develop, and deploy microservices and serverless applications using Node.js , TypeScript, and AWSUnit tests using Jest -, along with Supertest and Postman as supporting tools.
• Experience with NestJs Good knowledge in multi-threaded and socket programming Instinctive desire to maintain code quality ,tidiness and zero technical debtStrong understanding of testing practices (TDD / BDD), with tools like Jest , Supertest , and Postman Good with API and its design / protocol e.g. Restful, Websocket, SOAP
• Good understanding of Request / Response vs Async protocol Familiarity with production-grade monitoring, logging, and alerting
• Can work with various databases to match query and storage requirements e.g. DynamoDB ,SQL, DocumentDB
• Build and maintain scalable REST APIs integrated with DynamoDB , S3 , SNS / SQS , Step Functions , and Lambda
• Experience in cloud native architecture Understanding of data lake and data warehousing Knowledge in secured coding e.g. OWASP, XSS, CORS Experience in authentication standards and platforms e.g. JWT, OAuth, IdentityFederation
• Experience in AWS Cloud environment

AWS Serverless architecture

Microservices

Blue Green Deployments

Own CI / CD processes using CodePipeline,

CodeBuild, and CodeDeployInfrastructure As a Code (IAC) : Terraform, Cloudformation

AWS Devops SNS, SQS, EventBridge, Step Functions ElastiCache Loading Balancing, Route53, CloudFront, ECS,ECR, Auto-Scaling S3, RDS,

DynamoDB,DocumentDB CodePipeline, CodeBuild, CodeDeploy

Improve observability using CloudWatch, X-Ray, and other monitoring tools

Attributes :

Qualifications and experience

Bonus Points