Anis Jonischkeit

Personal Summary

I am a Software Engineer with a keen interested and curiosity for all things computing. My specialisation is in Web Technologies, with the breadth of my experience allowing me to take full advantage of what browsers and the modern web are capable of. I love working with teams and figuring out how to remove friction, foster collaboration and build impactful software.

Recent Professional Highlights

While at Origin I worked on a wide variety of projects all across our stack. Our team's purpose was to find where we can impact multiple teams, or a large chunk of the site in order to meaningfully increase productivity, remove recurring overhead, unify the customer experience, improve performance, manage the interactions between the website (served in a webview) and the native app and guide the front-end technical direction of the company. I also worked on a handfull of customer facing projects, which allowed me to actually experience the impact of my work on end users. Some key projects I worked on include:

• I designed and am currently leading the implementation of a major site-wide performance and UX uplift, leveraging client side routing, bundle and data pre-loading, optimistic and stale UIs and caching that we estimate will more than half our average page load times on our highest trafficked and slowest pages. It also opens a pathway to React 19 and allows us to do a step change from our current systems, keeping our microfrontend architecture, automating large parts of the migration and delivering incremental benefits.
• I lead Origin's adoption of Storybook as well as Interaction and Accesibility Testing to enable more robust testing with less overhead, higher confidence, and faster feedback loops.
• I lead the effort to uplift Origin's Core Frontend Platform to the latest versions of core frontend dependencies like React, Material UI and Webpack. This included updating our runtime platform to support incremental updates of parts of the site and managed and supported the rollout of these changes across the organisation.
• I uplifted Origin's Design System (150+ Component) to the latest Material UI, TypeScript, Styled Components, Babel, etc, with 0 UI regressions, simplifying the build and development process, and rallying together a core group of contributers to get some life, pride, and momentum back into this central but neglected project. I took it from 0 commits in the previous 6 months to getting multiple contributions from across the company merged to master every week.
• I created Origin's solution for embedding content blocks from wordpress into React frontends allowing content authors to reuse existing systems and make content changes in react apps, without developer effort
• I lead the design system team to update and rollout a major brand refresh project
• I uplifted CI pipelines enabling faster feedback loops with issues detected earlier
• I built Core experiences like Search and the Home Page
• I built a Pre Render service to improve SEO and allow for site auditability over time
• I setup monitoring for frontends to get an indication of and monitor which experiences needed to be improved
• Setup a Backstage instance to pull together our tooling and documentation into one place and allow a user to view ownership and application's risk profiles, deployment history and other useful information.

Technologies Used

• Javascript, Typescript, Node, Bash, Java, PHP, Groovy
• React, Material UI, Styled Components, React Router 7 (Remix)
• Webpack, Babel, Vite, CoreJS
• Storybook, Playwright, Puppeteer, Axe, Jest, Applitools, Chromatic
• Backstage
• Nginx, Docker, Compose, ECS
• Microfrontend Architectures
• Jenkins CI Pipelines
• New Relic
• AWS (CloudFront, S3, CloudFormation, Lambda)

• Frontend Programming

  JavaScript, TypeScript, ESNext, React, SSR, Redux, Astro, Material UI, Elm, ReasonReact

• Browser Technologies

  Event Loop, Render/Task Queues, Network Optimisation

• Frontend Layout/Styling

  HTML, Modern CSS, Responsiveness, Mobile Experience/Feel, Positioning

• Frontend Builds & Tooling

  Vite, Webpack, Babel, core-js, Bundle Optimisation, Monorepos, Applitools, Playwright, Storybook

• Frontend Architecture

  Micro Frontend Architectures, Single Page Apps, Multipage Apps, Mixed Rendered Architectures

• Backend Programming

  NGINX, REST, GraphQL, Node/Bun, Python, Go, OCaml/ReasonML, Haskell, Rust

• Backend Architecture

  Micro-Service Architectures, Monoliths, AWS (Lambda, RDS, ECS, EC2, S3, VPC, Cloudfront, Networking, CloudFormation)

• Databases

  Postgres, MySQL, DynamoDB, SQLite, Redis

• Linux System Administration

  Arch/Debian/Alpine, Docker/Compose, GNU, Systemd, FUSE, SSH, SFTP

• Development Practices

  Functional Programming, Test Driven Development, Property Based Testing

• Oporational Practices

  Continuous Integration/Delivery/ Deployment, Canary Releases, Infrastructure as Code, Git

• Mobile App Development

  React Native, Swift, Kotlin/Java

Previous Employment History

The below section outlines my work history, prior to my work at Origin Energy (which is outlined on the previous page)

I started at News UK as a Senior Software Engineer working on a new project to design and build News' new monetisation platform and its integration with the access platform. Some months into the project our squad lead left the company and I took on his role, co-ordinating with the other squads and guiding our piece from the perspective of the whole project.

• Wrote and presented proposals for new parts of the system
• Co-ordinated with other squad leads to decide the direction in which each squad would go
• Designed user journeys and generalised data structures and application flows to best accomodate these journeys
• Mentored junior staff and participated in knowledge sharing sessions
• Set up infrastructure as code to create reproducible insfrastructure on AWS via Terraform
• Implemented new APIs to support new functionality
• Wrote backwards compatible code and multi-stage database migrations to support Canary releases
• Identified, debugged and fixed production errors prompted by New Relic logging and alerting
• Wrote application code with well defined boundaries so it could be split out into microservices

Technologies Used

• Go
• Javascript (AWS Lambda)
• MySQL (AWS RDS Aurora)
• NoSQL (AWS DynamoDB)
• Terraform
• Docker
• Microservice Architectures
• Test Driven Development
• Continuous Deployment
• Datadog/New Relic
• CircleCI
• Stripe
• Auth0

While at Flight Centre I worked on the Australian Booking Engine, integrating it with Flight Centre Canada's booking providers and opening up the pathway to support other international Flight Centre brands on this now universal Flight Centre Booking Engine.

• Built components needed to deal with new requirements from Flight Centre Canada.
• Worked with the backend developers to create new data representations that support multiple data sources.
• Helped the team gain a better understanding of React, the Flow type checker and how we can better express our data to limit the number of ways in which we can make mistakes.
• Worked on creating guidelines to write more generic and composable ui components.
• Improved developer tooling by fixing bugs in VSCode extensions and creating a tool to better visualise our functional tests.

Technologies Used

• JavaScript (ES2018, React, Redux, Ramda, Reselect, Flow)
• Material UI
• Vagrant
• Jest (Enzyme)
• Selenium
• PHP
• Symphony
• Jenkins

• Re-wrote the "Imagus Facial Recognition" front-end application to make it faster, more responsive and easier to reason about (React, Redux, Flow, Semantic-UI).
• Taught and supervised better practice React / Redux development for new staff.
• Re-wrote the company’s backend drastically increasing the up time of the application, making it much easier to maintain, adding automatic documentation and parameter validation. (Python, Flask, Gevent)
• Developed a GraphQL solution for more advanced querying of data.
• Dockerised different projects.
• Deployed projects to Amazon’s servers.
• Wrote an Elm Component that allows a user to pick out and adjust where faces are in an image.
• Built a prototype of the facial recognition software for IOS.

Technologies Used

• JavaScript (ES2017, React, Redux, Semantic UI)
• Flow
• Elm
• Python 2.7 (Flask, SQLAlchemy)
• Graphene (GraphQL)
• Docker
• PostgreSQL
• AWS Cognito, S3, ECS, CloudFront Lambda, IAM
• Swift

Developed an invoice extraction tool to extract important information from client's invoices using NodeJS.

Created stylish hotel websites for the clients of pebble design using HTML5, CSS3 and JavaScript.