Full Stack Developer

ROBERT TESSLER

Full Stack Developer

+31-061******* ******.*******@*******.***

github.com/rtessler www.linkedin.com/in/roberttessler

Delft, Netherlands

Key Skills: React.js, Javascript, Typescript, Node.js, Flutter, Swift, Kotlin, React Native, Python, C++, Java

“What we build defines us”

Skills

Languages: Java, Kotlin, Python, Javascript, Typescript, C#, C++, PHP Frontend: React.js, Next.js, Vue.js

Backend: Node.js, FastAPI, Flask, Spring Boot, ASP.NET, MVC, SQLServer, Docker, Laravel

Mobile: IOS, Android, Swift, SwiftUI, Kotlin, Flutter, React Native Database: Postgres, MongoDB, MySQL, SQL Server, GraphQL Cloud Services: AWS, GCP, Firebase

Version Control & CI/CD: Git, Github Actions

Other: Agile, Jira

Work Experience

Full Stack Developer Sep-2023 - present

Sping Delft, Netherlands

• Development and maintenance of the QC One react native app for fruit and vegetable inspections. Added mobile functionality to drive sales to new clients.

• Development and maintenance of the HVG Tessa Android Kotlin app for steel product inspections. Significantly improved sync performance. Use of Coroutines, Flow, Room, Retrofit, Hilt, N-Tier architecture, jetpack compose.

• Deployment to app stores using fastlane and GitHub actions.

• OCR Research project to read text from images using python, Google Vision API, PostgreSQL, FastAPI, Docker, Vue.js.

• Project management: agile sprints, organise meetings and presentations. Skills: IOS, Android, React Native, React.js, React Hooks, Typescript, Kotlin, Java, Sping Boot, Spring Data JPA, Maven, Fastlane, Github Actions CI/CD, GraphQL, Google Vision API, Python, Docker, FastAPI, Postgres, Vue.js, Agile, Jira, IntelliJ, XCode, Android Studio Mobile / Full Stack / Tech Lead Mar-2022 – Mar-2023 Sway Music London, Remote

• Developed an innovative text similarity song matching algorithm to find tracks on music streaming platforms.

• Cross platform app development in Flutter, native plugin development in Swift and Kotlin, Riverpod, Google Vision API and GCP for image filtering, notifications, social media, chat, audio streaming from apple music and Spotify APIs, deployment to app stores.

• Firebase cloud servers in Node/Express and Python/Flask.

• Developed a admin web app in react.js

Skills: IOS, Android, Flutter, Swift, SwiftUI, Kotlin, Node.js, React.js, React Hooks, Firebase, Python, Flask, Apple Music & Spotify APIs, Javascript, Google Vision API, GCP, Zeplin, REST APIs, Jira

Full Stack Developer Oct-2021 - Feb-2022

Twisted Rope Amsterdam, Remote

• Developed a React.js and D3.js app for Accenture to display a graph of campaign data from sharepoint. Significant benefit for Accenture project planning.

• Built Unity augmented reality (AR) apps for IOS and android: AReveryware and Pawpow

• Added features to the legato concert booking system using React, PHP and Laravel Skills: IOS, Android, Javascript, React.js, React Hooks, D3.js, Unity, PHP, Laravel, Sharepoint, REST APIs

Full Stack Developer Oct-2020 - Sep-2021

Koda Design Sydney, Remote

• Developed a web app for (APTC Fiji) using Sitefinity CMS, ASP.NET and .NET MVC.

• IOS Swift App and web app for Pepsi Cola Taste Challenge

• Import of data into Hubspot CMS using Python and Node for Crescent Wealth

• Maintenance of Crescent Wealth API in Java and SpringBoot. Skills: Swift, IOS, C#, ASP.NET, .NET MVC, Sitefinity CMS, Firebase, Javascript, Node.js, React.js, Shell Scripting, Python, REST APIs, Java, SpringBoot, Spring Data JPA, Maven Mobile Developer Apr-2020 - Aug-2020

Knab Amsterdam, Remote

• Maintenance and new features for the Knab IOS App coding in Swift Skills: IOS, Swift, Reactive Programming, XCode, MVVM, Coordinator Pattern, Agile, Jira Full Stack Developer May-2019 - Apr-2020

Sublime X Sydney, Remote

• Developed a mobile app in Flutter and web site for Marine Rescue NSW for reporting marine hazards in coastal waters

• Firebase Node/express server for database, image storage, automatic image processing, connections to Weatherzone and Sendgrid APIs, proxy for authentication, PDF generation, deployment to app stores

• GCP: Static IPs, SSL certificate, port routing, DNS Skills: IOS, Android, Flutter, React.js, React Hooks, Redux.js, Node.js, Firebase, Xcode / Android Studio, Git, Google Cloud Platform, REST APIs, Javascript Full Stack Developer Mar 2018 - Apr 2019

Saatchi & Saatchi Sydney, Australia

• Built an online hearing test web app for Cochlear. Front end development in React accessing the Cochlear and Marketo REST APIs. The app helps millions of people assess their own hearing at home and Cochlear identify customer leads

• Developed a Node / express REST API hosted on AWS for Toyota. JSON uploads of car features and options from Toyota store kiosks and data sent to salesforce. Skills: React.js, Bootstrap, Node.js, Responsive design, Git, Jest, Marketo API, Salesforce API, JavaScript, Jira, REST APIs, AWS: S3, lambda, EC2, API Gateway, Front End Developer Jun 2017 - Feb 2018

Audinate Sydney, Australia

• Development work on the Dante Domain Manager (DDM) system for managing networks of audio devices.

Skills: React.js, MongoDB, Meteor Framework, Bootstrap, Typescript, Javascript Front End Developer Jan 2017 - Apr 201

Deloitte Sydney, Australia

• Relationship Access Manager system for the Australian Tax Office. The system allows companies that offer tax services to register with the ATO and clients of those companies to apply for services

Skills: Angular 2, MongoDB, Jasmine.js, Agile, Typescript, Javascript Full Stack Developer Aug 2013 - Sep 2016

Landsberry & James Sydney, Australia

• Web app for displaying television, print and radio and video graphics and analytics for developing advertising campaigns.

• Interactive web page builder linked to L&J data

• Web app for the Seven television network to display advertisement spot pricing. Skills: JavaScript, Backbone.js, jQuery, HTML, CSS, SASS, C#, .NET MVC, .NET Web API, SQL Server

Full Stack Developer Jan 2012 - Jun 2013

Publicis Groupe Sydney, Australia

• Intranet using Ektron CMS for AIHW

• Added functionality to .NET ASP sites: Unity Water, Better Electrical, Audi, Unilever Skills: C#, ASP.NET, .NET MVC, SQL Server, SEO, JavaScript, Backbone.js, jQuery, Git Mobile / Front End Developer Mar 2011 - Oct 2011

Randstad Sydney, Australia

• Developed a responsive mobile version of the Randstad website

• Developed an Objective C iPhone job search app

• Added new features to the Randstad website

Skills: C#, ASP.NET, JavaScript, jQuery, IOS, Objective C, HTML, CSS Full Stack Developer Sep 2010 - Mar 2011

Devotion Digital Sydney, Australia

• New features and maintenance of existing websites.

• Sites: avjennings, bradfordinsulation, westfund, mfaa, clarendonhills, sydneyairportshopping, wool

Skills: C#, SQL Server, Kentico CMS, ASP.NET, jQuery, Java, J2EE, WebSphere Desktop App Developer 2000-2005

Deutsche Bank Sydney, Australia

• Windows app development using MS MFC, C++ for derivatives trading.

• Improved the productivity of DB traders around the world.

• Wrote specifications, object oriented design, UAT, documentation and support. Skills: MFC C++, Windows, XML

Desktop App Developer Nov 97 - Jun 2000

STN-Atlas Electronic Sydney, Australia

• RAN Hydrographic Ship Project (HSS). Use of sonar to capture oceanographic data to establish new shipping lanes in north Queensland

• UNIX RPC, desktop app development C++, Motif for charting live data. Skills: UNIX C/C++, RPC, X Windows/Motif, CVS, ICS BX GUI builder, Shell scripting, Oracle SQL, XML

Education

Achievements

• Real time mapping and visualisation of the ocean floor to establish new shipping lanes in north Queensland Australia. - Atlas

• Developed a music streaming app to allow sharing between apple music and Spotify users - Sway

• Created a mobile app to record sea conditions and warn of marine hazards - Sublime

• Developed a web based online hearing test to help assess their hearing - Saatchi & Saatchi Private Projects

• Working on audio VST plugin for auto looping audio using C++ and the JUCE framework

• AI project to detect music clips from film soundtracks using python Interests

• Mobile development in Swift, Kotlin and Flutter

• Machine Learning and Generative AI in Python

• Computer Vision and robotics

• Audio plugin development using the JUCE framework, DSP and C++

• 3D graphics in three.js, Unreal Engine and Unity

• Embedded systems in C++ and Python on Arduino

• Engineering, Entertainment, Aerospace, Travel, Construction, Automotive, Energy, Hospitality, Environment

• Music production and performance.

Bioinformatics Graduate Certificate

Sydney University

Protein Function and Structure, Statistics, Sequences and Genomes, Molecular Genetics and Inheritance

Computer Science Honours

Sydney University

Ray tracing of algebraic surfaces in C/UNIX, Scene description language in yacc and lex.

BSc - Sydney University Major in Computer Science and Pure Mathematics Music 5th grade classical guitar, 4th grade classical piano, Sydney university guitar jazz ensemble

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