Senior fullstack engineer in Sydney building APIs, microservices and AI/conversational experiences on a C#/.NET and React/TypeScript stack, with cloud-native work on Azure/AWS, CI/CD, and production LLM/agentic AI (RAG, prompt engineering, AI agents).
Compensation
Not disclosed
Location
Sydney, Australia
Work setup
Not specified
Seniority
Senior
Employment
Not specified
Experience
3+ years
Category
Fullstack
Posted
Skills
agentic-ai
agile
ai
anthropic
api
aws
azure
ci-cd
cli
cloud
cloud-native
containerization
conversational-ai
csharp
css
dataverse
deep-learning
devsecops
docker
dotnet
fastapi
game-development
git
html
kubernetes
linux
llm
machine-learning
microservices
microsoft-copilot
microsoft-dynamics
mongodb
mvc
nextjs
nlp
nodejs
observability
openai
power-platform
prompt-engineering
python
react
semantic-kernel
sql
sql-server
technical-discovery
test-automation
typescript
unit-testing
vector-search
Must have
5+ years experience as a software developer or similar role
BSc in Computer Science, BEng in Software Engineering, or similar
Front end: ReactJS, TypeScript, CSS
Back end: C# .NET Core, ASP.NET, Entity Framework, Web API
Experience with SQL Server database technologies
Experience with microservice architectures and containerisation (Docker, Kubernetes)
Strong experience developing applications for Microsoft Azure
Strong experience using Azure Pipelines for CI/CD
Experience with Azure Repos and Git for source control
Experience with unit testing frameworks
Familiarity with Agile development methodologies
Experience building production-grade AI software and platforms
Strong experience developing AI solutions using Python with AWS and Kubernetes
Experience delivering scalable AI products using React or NextJS
Excellent communication skills
Experience mentoring engineers and influencing technical direction
Experience with customer-facing roles onshore
Experience working with and managing remote teams
Nice to have
Microsoft Copilot Studio, Azure OpenAI/AI Foundry, Semantic Kernel
Dynamics 365 Contact Centre
Voice Bots, IVR, PSTN and contact-centre routing
Agent testing, synthetic conversations and Responsible AI
Multi-agent architectures, Power Platform and Dataverse
Experience with behaviour-driven or test-driven methodology
Familiarity with Linux systems
Game development experience
Full description
Job Description
Senior Engineers
Hands‑on engineers building APIs, services, AI workflows and conversational experiences
Strong focus on .NET, cloud, integration, testing and operational excellence
Candidates should bring strong software engineering fundamentals across React/TypeScript, C#/.NET, APIs, microservices, cloud‑native development (Azure/AWS), DevSecOps, CI/CD, automated testing and production support, combined with practical experience delivering LLM‑powered and Agentic AI solutions.
Key capabilities include
Building AI agents and conversational applications
API/tool integration and enterprise system orchestration
RAG, prompt engineering, vector search and knowledge retrieval
Conversational AI, including intent classification, NLU/NLP, entity extraction and context management
Human‑in‑the‑loop workflows, escalation patterns and AI guardrails
Agent observability, evaluation, reliability and performance monitoring
Highly desirable experience includes
Microsoft Copilot Studio, Azure OpenAI/AI Foundry, Semantic Kernel
Dynamics 365 Contact Centre
Voice Bots, IVR, PSTN and contact‑centre routing
Agent testing, synthetic conversations and Responsible AI
Multi‑agent architectures, Power Platform and Dataverse
What you'll Own
Design and deliver AI enabled products and platform capabilities from technical discovery through to production.
Build scalable AI applications using Python alongside modern frontend technologies where required.
Develop reliable, secure and observable AI systems that are designed for production from day one.
Partner closely with Product, Engineering, Data, Risk and Security teams to identify opportunities where AI can create meaningful customer and business value.
Drive technical excellence through architecture decisions, code reviews, mentoring and engineering best practice.
Balance experimentation with long‑term platform quality, operational excellence and responsible AI delivery.
Help shape the future direction of Zip's AI platform and engineering standards.
What you'll bring to the team
Experience building production grade AI software and platforms.
Strong experience developing AI solutions using Python together with modern cloud technologies such as AWS and Kubernetes.
Senior Ai + Dotnet Fullstack Engineer: at Virtusa Apac (Sydney, Australia) — aijobsearch
Experience delivering scalable AI products using technologies including React or NextJS where appropriate.
Strong understanding of software engineering fundamentals, system design and operational excellence.
Ability to partner with technical and non‑technical stakeholders to solve complex business problems.
Experience mentoring engineers and influencing technical direction through collaboration and engineering leadership.
Excellent communication skills with a pragmatic approach to balancing customer outcomes, delivery speed and technical quality.
A mindset that embraces AI and new tools to adapt, learn and grow.
An aptitude for identifying and managing risks. Whether you are a People Manager or an Individual Contributor, we are all leaders at Zip, therefore effective risk management is important to how we run our business and part of all our roles.
Our values in your DNA: Customer First, Own It, Stronger Together and Change the Game
What you'll get in return
25 days paid leave annually, including birthday leave and quarterly wellbeing days
16 weeks paid parental leave for primary carers, and 4 weeks for supporting carers
Family support policies including miscarriage bereavement leave and domestic violence leave
Mental health and wellness initiatives, including $299 annual wellbeing allowance, free access for you and family members to our EAP service Sonder, discounted private health insurance and great rates on fitness sessions through ClassPass
2 days paid volunteering leave per year
Access to the Flare Benefits Hub and Novated Leasing for savings across lifestyle, essentials and wellbeing
Fee‑free Zip products, and discounts with Zip merchant partners
Team social events, epic offices, free breakfast daily, and weekly free lunches
Be a part of a team that reflects the diversity of our customers
We pride ourselves on being a workplace that provides equal opportunities to people of all ages, cultural backgrounds, sexual orientations, gender identities, abilities, veteran status, and everything else that makes you unique.
Equally, we’re committed to ensuring our recruitment processes are accessible and inclusive. Please let us know if there are any adjustments that need to be made to ensure you have a fair and equitable experience.
And finally… get to know us
Zip Co Limited (ASX: ZIP) is a digital financial services company, offering innovative, people‑centred products that bring customers and merchants together.
Operating in two core markets - Australia and New Zealand (ANZ) and the US, Zip offers point‑of‑sale credit and digital payment services, connecting millions of customers with its global network of tens of thousands of merchants.
We’re proud to be a values‑led business and our values - Customer First, Own it, Stronger Together and Change the Game - guide us in everything we do.
We believe robotics is the industry of our lifetime, and data is its lifeblood.
Alloy is the AI‑native data platform for robotics teams. Robot fleets generate enormous volumes of logs, video, telemetry, and mission data, and most of it ends up in silos where nobody can use it. Alloy turns it into one queryable layer with AI agents on top: engineers ask questions in natural language, get automated mission reports, and catch failures before they compound. The point is simple. Your robot breaks, you find out why, and your best people spend their time building the next robot instead of digging through the last one.
We’ve raised $16m, backed by Square Peg, Blackbird, and Airtree, with angels including senior leaders from OpenAI, Anthropic, Tesla, Waymo, and Halter. We partner with robotics teams across defence, agriculture, maritime, humanoids, construction, and medical, including Advanced Navigation, DroneForge, Breaker Industries, and Puralink. We’re a lean team building from Sydney, and we’re adding our first US hires.
Where we are, and where we’re heading
Our product is where robotics engineers live when something goes wrong: Mesh holds their fleet data, Replay plays missions back in 3D, agents answer and report on top. The bones are strong and customers use it daily. The next year is about making it exceptional: faster, more intuitive, more coherent.
About the role
You’ll own product surfaces end to end and raise the bar on frontend craft: the polish, the speed, the coherence. Small senior team, no layers; your work is in front of real robotics teams within days.
What you’ll do
Own surfaces end to end: design, build, ship, iterate (Next.js/TypeScript, FastAPI/Python)
Set the frontend quality bar
Hunt down slow loads and fix the architecture behind them
Build data‑dense UI: 3D playback, time‑series, maps, dashboards, all of it great on mobile
Ship full‑stack when the feature needs it: APIs, data model, jobs
You may be a good fit if you have
3+ years building production web products, frontend and backend
Exceptional React/TypeScript with strong CSS fundamentals
Design taste: good calls without a mock for every state
Performance instincts on data‑heavy pages
A habit of shipping fast and owning outcomes
Strong candidates may also have
Data‑dense or visualisation‑heavy products behind you
Design‑system experience
How we work
We’re building the company we always wanted to join: small, fast, and serious about the craft. The bar is work you’ll be proud of in five years, shipped this week. Everyone owns outcomes end to end: the interesting problems don’t come with instructions, and nobody will hand you a playbook. We question requirements, delete what shouldn’t exist, and spend our energy where customers feel it. If you want clear lanes and a manager to set your week, we’ll frustrate you. If you want real problems, real pace, and the best work of your career, you’ll fit right in.
Compensation
Additional compensation and benefits may include equity and flexible working arrangements
What you’ll do?
Work across the entire software stack to build our product from design > development > deployment
Collaborate directly with founders and work in a small cross‑functional team to creatively and swiftly, solve the most important problems for our customer
Architect and implement scalable infrastructure as we grow
Role model engineering best practices for code deployment, review, and development
Ensure high‑standards for security, privacy, reliability, performance, and code quality
Work with a stack that includes node.js, typescript, python ReactJS, MongoDB, AWS (open to new tech if it solves problems)
What will you need to be successful?
Have shipped high‑quality, cloud native production code (ideally +5 years experience)
Experience building scalable technical architecture, including automated testing, observability tooling, and performant applications.
Experience in early to mid‑stage startups or a sense of comfort / adaptability in unstructured, ambiguous environments.
Bonus points! Experience, knowledge or curiosity about artificial intelligence, machine learning, and deep learning techniques. Familiarity with popular AI/ML libraries and frameworks.
A deep sense of ownership from feature design through production release.
Your responsibilities will include
Meet business requirements to build effective and high performant user interfaces.
Produce clean, efficient, safe, and quality code based on specifications.
Troubleshoot, debug, and upgrade the system in various environments.
Work within an agile environment to deliver against a backlog.
Contribute to continuous improvement through agile processes.
Create concise technical documentation.
Work with developers to build algorithms and develop end‑user functionality.
Essential Qualifications
BSc in Computer Science, BEng in Software Engineering, or similar.
Proven 5+ years experience as a Software Developer or similar role.
Substantial experience with the following technologies:
o Front End - ReactJS, TypeScript and CSS, o Back End - C# .NET Core, ASP.NET , Entity Framework, Web API.
Experience with database technologies: SQL Server
Experience with microservice architectures and containerisation: Docker,
Kubernetes.
Ability to mock‑up and create user interfaces.
Familiarity with Agile development methodologies
Experience with unit testing frameworks.
Excellent Communication Skills
Experience with customer facing roles onshore
Experience in working with and managing remote teams
Desirable Qualifications
Experience with behaviour driven methodology or test-driven methodology.
Experience with game development or related technologies.
Familiarity with Linux systems.
Desirable Experience
Game development experience.
Requirements
Bachelor's degree in Computer Science or related field.
A minimum of 5 years of experience in software development.
Strong experience with ASP.NET, C#, KendoUI, Web service, .Net 4.0, Web API, Asp.net, C#.Net, .Net Core, Web API, MVC, HTML5.
Strong understanding of ASP.NET Core 5.0.
Strong experience in using Azure Pipelines for continuous integration and delivery.
Experience using Azure Repos and Git for source code management.
Experience using Azure Repos or Git GUI and CLI tools.
Strong experience in developing applications for the Microsoft Azure cloud platform.
Strong experience in developing SQL Server databases and data loading technologies.
Strong communication and interpersonal skills.
Ability to work well in a team environment.
Benefits
Our emphasis on People Culture, including training
Our commitment to Diversity, Equity, and Inclusion