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an exciting roadmap of innovative new products under development, we are building a high performing team to take on the outdated banking solutions.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.

Job Description

As a Senior Software Engineer, you will be responsible for architecting and developing cloud native, highly available, robust and secure applications in the AWS environment. You will have experience in web, mobile, backend, API, database development and should have experience in leading a team of software engineers. With automation and maintenance being at the heart of our engineering principles, this position will have the enviable opportunity to adopt and promote best practices, bleeding edge technologies and trends. Not limited to a single product area or type, this role will work in a cross functional team with skill sets in full stack software engineering, devops, infrastructure, quality assurance to architect. You will collaborate with a cross-disciplinary team to own product software development, contribute and promote standards and engineering best practices, support operational activities such as; process automation, compliance activities, SLA upkeep requirements. You’ll be tasked with translating business or product requirements into technical designs, hands-on implementation of the designs to see through its testing and deployment into various environments such as; development, stress testing, integration testing, staging and production. You will enjoy the fun of development from scratch in some application components while adhering to the company engineering standards, frameworks and best practices. You will also be a collaborative engineer capable of observing and contributing to existing works by other team members. Automation and maintenance is key, you will be excited to see through your contributions into production and maintain their longevity in the mission-critical environment.

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 Node.js, 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 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, Identity Federation
Experience in AWS Cloud environment
AWS Serverless architecture
Microservices
Blue Green Deployments
Own CI/CD processes using CodePipeline, CodeBuild, and CodeDeploy
Infrastructure 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
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 environments - dev, test, stress-testing, staging/production
Contribute to and evolve our technical architecture and engineering processes
Participate in system design and architecture reviews

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)
5+ 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)

Like the rest of our team, you will benefit from

Competitive remuneration
A balanced, progressive, and supportive work environment
Excellent parental leave and other leave entitlements
Fully remote role
Annual get together with the team
Endless learning and development opportunities
Plenty of remote friendly fun and social opportunities - we love to come together as a team
An ability to influence and shape the future of Zeller as our company scales both domestically and globally
Being part of one of Australia’s most exciting scale-ups