Zeller - Backend Software Engineer -

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an exciting roadmap of innovative new products under development, we are building a high performing team to take on the outdated banking solutions.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 research findings into technical designs and implementation steps Prior.

- Experience in handling a team of software engineers.

- Build to last and go production mindset versus build as proof-of-concept.

- Strong background in software engineering 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 , TypeScript, and AWS

- Unit 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 debt

- Strong understanding of testing practices (TDD/BDD), with tools like Jest, Supertest, and Postman

- Good with API and its design/protocol i.e. 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 i.e. 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 i.e. OWASP, XSS, CORS Experience in authentication standards and platforms i.e. 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, Code Deploy.

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

- Proven track record in developing and maintaining mission-critical high-load production systems with SLA 99.999%.

- Proven track record in supporting rapid and agile product deployments to different Contribute to and evolve our technical architecture and engineering processes.

- Participate in system design and architecture reviews environments dev, test, stress-testing, staging/production.

Attributes :

- Loves challenging the status-quo.

- Ability to work autonomously yet collaboratively.

- Prepared to be bold yet consistent with your engineering principles.

- Logical, ethnical, mature and responsible.

- Fast learner, humble and loves to share knowledge.

- Calm and exercises positive level of stress in exceptional circumstances such as;production issues, timeline requirements.

Qualifications and experience :

- Minimum of a Bachelor degree in software engineering (or related).

years of working experience in a technical hands on software engineering role.

- Demonstrable experiences in developing mission-critical systems.

Bonus Points :

- Experience in fintech.

- AWS Certified Solutions Architect (Associate or Professional).

- Experience in working within a high-growth environment.

- Experience in other programming languages.

- Experience in payments.

- Exposure to Domain-Driven Design (DDD)Experience with PCI compliant environments (PCI-DSS, etc)