NJnecharjoshi
OnlineID://NJ-01
Contact Info
// INTRODUCE

I Architect Cloud
Systems On AWS_

I'm a senior software engineer and AWS solutions architect with 12+ years designing production systems in healthcare, government, and finance — currently engineering lead at Australia's national health service. I work in serverless APIs on Lambda and API Gateway, event-driven services, and OIDC identity with Cognito, and I apply the same discipline to AI and LLM-backed systems: retrieval, guardrails, evals, and cost control, so a model in production behaves like infrastructure rather than a demo.

Nechar Joshi
// ABOUT ME

About Me

Hi, I'm Nechar Joshi. For over a decade I've designed and delivered production systems in healthcare, government, and finance — domains where uptime, auditability, and accessibility are requirements, not aspirations. I currently lead engineering at Healthdirect Australia, the national public health service, where the platforms I work on are used by the public every day. My work has spanned the full stack, but the part I keep being pulled back to is architecture: choosing the boundaries, the data stores, the failure modes, and the cost curve before a line of code gets written.

On AWS that has meant serverless REST APIs on Lambda and API Gateway, OIDC identity with Cognito and role-based authorisation, event-driven decoupling, and promotion paths across dev, staging, and production. I've also delivered on Azure, which makes me pragmatic about trade-offs rather than dogmatic about a vendor.

More recently I apply the same engineering discipline to AI systems — retrieval over real data, guardrails, evals, and token cost control — and I use AI coding agents daily in my own delivery workflow. I'm less interested in AI as a buzzword than in what it takes to make a non-deterministic component safe to put behind an SLA.

Technical Stack

AWS & Cloud Architecture

  • Lambda
  • API Gateway
  • DynamoDB
  • S3
  • EC2
  • ECS / EKS
  • Cognito
  • SQS / SNS / EventBridge
  • CloudFront
  • Route 53
  • IAM
  • CloudWatch
  • Step Functions
  • RDS
  • Well-Architected Framework

Architecture & Patterns

  • Serverless
  • Event-Driven Architecture
  • Microservices
  • REST & GraphQL API Design
  • Multi-Environment Strategy
  • OIDC / OAuth 2.0
  • Cost Optimisation
  • Observability

AI & LLM Engineering

  • AI-Assisted Development
  • LLM Application Design
  • Prompt & Context Engineering
  • Model Context Protocol (MCP)

Backend

  • Node.js
  • TypeScript
  • NestJS
  • Express.js
  • Python
  • C# / .NET
  • PostgreSQL
  • MySQL
  • MongoDB
  • Prisma

Frontend

  • React
  • Next.js
  • Angular
  • TypeScript
  • RxJS
  • NgRx / Redux
  • Tailwind CSS
  • Accessibility (WCAG)

DevOps & Delivery

  • Infrastructure as Code
  • Serverless Framework
  • Docker
  • GitHub Actions
  • GitLab CI/CD
  • Azure DevOps
  • Jest / Cypress
  • 12+
    Years Building Production Software
  • 11
    Organisations Delivered For
  • 3
    Regulated Domains (Health, Gov, Finance)
  • 6+
    Greenfield Platforms Led
// CAPABILITIES

What I Do

Where I add the most value on a team: cloud architecture on AWS, serverless and event-driven systems, and getting AI features safely into production.

01
AWS Solution Architecture

AWS Solution Architecture

Designing systems on AWS end to end — compute and storage selection, network and IAM boundaries, multi-environment promotion, and the Well-Architected trade-offs between cost, resilience, and speed of delivery.

02
Serverless and Event-Driven Systems

Serverless & Event-Driven Systems

Building production APIs on Lambda, API Gateway, and DynamoDB with NestJS and TypeScript, decoupled through SQS, SNS, and EventBridge, deployed as infrastructure as code.

03
Applied AI and LLM Engineering

Applied AI & LLM Engineering

Taking LLM features from prototype to production: retrieval over real data, prompt and context design, guardrails, evaluation harnesses, and inference cost control.

04
Secure and Accessible Delivery

Secure, Accessible Delivery

Shipping in regulated domains — OIDC and role-based access control, auditability, WCAG-compliant interfaces, and CI/CD that makes weekly releases uneventful.

// EDUCATION

My Education

Formal grounding in computer science and engineering across India and Australia, complemented by hands-on experience designing and delivering modern cloud-based architectures.

  • Federation University

    2016 - 2018 · Sydney, Australia

    Master of Technology (Information Technology)

    Postgraduate study in software engineering, systems architecture, and distributed systems, completed while working full time in the Australian market.

  • Reva University

    2009 - 2013 · Bangalore, India

    Bachelor of Engineering, Computer Science

    Foundations in algorithms, data structures, operating systems, networks, and software design. Final-year project: design and implementation of a remotely controlled home automation system (2013).
// EXPERIENCE

Work Experience

12+ years designing and delivering production systems across Australian healthcare, government, and financial services — from serverless AWS platforms to citizen-facing applications at state scale.

  • Healthdirect Australia

    Jan 2022 - Present

    Software Engineering Lead

    Healthdirect Australia is the national public health service funded by the Commonwealth and state governments — an environment where availability, clinical safety, auditability, and WCAG accessibility are compliance obligations rather than goals.

    • Engineering lead on national health platforms for over four years, taking products from greenfield to public launch and then operating them through a sustained weekly release cadence
    • Architected ORE Management Studio, an enterprise clinical-rules management platform in Next.js and TypeScript, giving clinical staff direct control over triage logic that previously required an engineering change to alter
    • Designed the identity and authorisation model on AWS Cognito using OIDC with role-based access control, including secure token handling and separated credential management across development, staging, and production
    • Built Symptom Checker, a public clinical triage application, with server-side rendering for first-load performance and accessibility treated as a launch gate rather than a follow-up
    • Delivered high-volume clinical data views with AG Grid and automated multi-sheet Excel reporting, replacing a manual operations process
    • Also delivered the account management system for the healthdirect mobile app and the Service Finder product, working across Next.js, Angular, Ionic, and Cordova codebases

    Impact: Both launch platforms went live on the committed May 2022 date and remain in national service, shipping incrementally every week since.

    Stack: Next.js, TypeScript, AWS Cognito, React, Chakra UI, AG Grid, Angular, Ionic

  • Aurecon Group

    Nov 2021 - Dec 2021 · Contract

    Senior Software Engineer

    • Delivered a public-facing web application for the Victorian Government's Suburban Rail Loop East infrastructure programme, brought in on a fixed end-of-year deadline and delivered on it
    • Built the React frontend and Node.js services, deployed on Azure — a short, scoped engagement where the constraint was time-to-live rather than long-term platform work

    Stack: React, Node.js, Azure

  • Cloudfloat

    Aug 2021 - Oct 2021 · Contract

    Engineering Lead

    • Led the re-architecture of a Buy Now Pay Later platform from a monolith onto a fully serverless AWS stack, chosen to remove idle infrastructure cost and let the platform absorb spiky transaction volume without capacity planning
    • Designed and built the core REST API in NestJS and TypeScript, deployed to AWS Lambda behind Amazon API Gateway using the Serverless Framework, with environments defined as code and promoted rather than hand-configured
    • Implemented the authentication and authorisation layer — email-based auth via Passport.js with role guards enforcing least-privilege access to financial endpoints
    • Chose NestJS specifically for its module and dependency-injection model, so a small team could add payment flows without the service becoming a shared mutable surface
    • Published an OpenAPI/Swagger contract as the integration boundary, unblocking frontend and third-party work in parallel with backend delivery

    Stack: AWS Lambda, API Gateway, Serverless Framework, NestJS, Node.js, TypeScript, OpenAPI, Passport.js

  • Perpetual

    May 2020 - Aug 2021

    Senior Software Engineer

    Perpetual is an ASX-listed investment and trustee group managing funds for individuals, advisers, and institutions — an environment where financial accuracy and auditability are non-negotiable.

    • Engineered the corporate trust management platform within Perpetual Business Intelligence, then extended the same codebase to carry the payments and registry products rather than forking a second application
    • Built financial ledgers, reconciliation tables, and charting over large datasets with AG Grid, and embedded Power BI for real-time reporting instead of rebuilding analytics in-house
    • Generated a strongly typed TypeScript client from the OpenAPI 3.0 contract using NSwag, eliminating a recurring class of frontend/backend drift bugs on a regulated data model
    • Worked across the stack into .NET Core services and RESTful API design, and used RxJS extensively for the platform's asynchronous data flows
    • Deployed and operated on Azure across the delivery pipeline

    Impact: Delivered ahead of deadline through a fully remote period, and consolidated three products onto one maintained codebase.

    Stack: Angular, TypeScript, RxJS, AG Grid, Power BI, .NET Core, OpenAPI/NSwag, Azure

  • Service NSW

    Jun 2018 - Jul 2019 & Feb 2020 - Apr 2020

    Senior Full Stack Engineer

    • Lead engineer on My Community Project, a greenfield state-wide participatory budgeting platform — 61,437 NSW citizens cast votes, directing A$24.7 million of public funding to winning community projects
    • Architected it full stack: React and Next.js with server-side rendering for public reach and SEO, and a Node.js, Prisma, and GraphQL backend with Apollo Client, chosen over REST to keep a rapidly changing data model from forcing endpoint churn
    • Built the NSW Police Force firearms licence application, which has processed several thousand applications per month since launch without a production outage
    • Delivered an eligibility-assessment platform for NDIS support workers, handling sensitive personal data under government privacy obligations
    • Introduced Docker containerisation to make scaling and environment parity predictable across the delivery pipeline

    Impact: Both citizen-facing platforms launched and remain in service; the voting platform is the highest-scale public system I have led the frontend architecture for.

    Stack: React, Next.js, GraphQL, Apollo, Node.js, Prisma, Angular, TypeScript, RxJS, Docker

  • Resimac Home Loans (State Custodians)

    Nov 2019 - Jan 2020 · Contract

    Senior Software Engineer

    • Joined a home-loan origination platform, State Custodians, that was already behind schedule, and got version one live on the original date
    • Implemented the financial calculation layer — repayments, stamp duty, loan comparison, and eligibility rules — where an error is a compliance issue, not a bug
    • Structured application state with NgRx to make those calculations traceable and testable rather than scattered across components
    • Applied route-level lazy loading to cut subsequent page load times on a large Angular application
    • Worked in the Azure DevOps and ASP.NET toolchain across delivery and deployment

    Stack: Angular, TypeScript, NgRx, ASP.NET, Azure DevOps

  • Demonz Media

    Mar 2018 - Jun 2018 · Contract

    Senior Frontend Developer

    • Built "Floods Near Me" for NSW Public Works Advisory — a public emergency-information mobile app where responsiveness under load matters most during the event it exists for
    • Moved heavy geospatial data processing off the main thread into web workers, holding a sustained 60fps interface on mid-range devices
    • Shipped one Cordova codebase to both iOS and Android, styled with Angular Material and Flex Layout to read as native on each platform
    • Deployed and monitored on Azure; also delivered an Angular mobile application for Telstra

    Stack: Angular, Ionic, Cordova, Web Workers, SASS, Azure

// REFERENCES

What People Say

From engineers, leads, and stakeholders I've delivered alongside. All verifiable on LinkedIn.

// CONTACT

Contact Me.

Open to software engineering and solution architect roles in Sydney or remote, with a focus on AWS and applied AI. Happy to walk through any of the architecture decisions above.