Andreas Kater
Verified Expert in Engineering
Software Developer
London, United Kingdom
Toptal member since October 25, 2018
Andreas is an experienced full-stack developer with a focus on Node.js and React. He has been the COO of three tech start-ups in London, most recently for an NLP consultancy partnered with Google Cloud Platform and Twilio. Andreas has also been a management consultant which gives him a lot of experience in senior stakeholder management. He holds an MBA from INSEAD.
Portfolio
Experience
Availability
Preferred Environment
Firebase, Visual Studio Code (VS Code), Google Cloud Platform (GCP), Node.js, React, TypeScript, Next.js, Twilio API, ChatGPT, Gmail API
The most amazing...
...thing I've coded is a CRM tool for a drone business that ensured the right pilot would be in the right place with the right equipment on the right day
Work Experience
Front-end React Developer
Dar Al Nukhbah Electronics TR LLC
- Built a WebRTC connection to stream video from robot to UI for a robotic fleet management project.
- Created a joystick to control the robot remotely that provided visual feedback on a tablet to allow users fine-grained control over the amplitude and direction of the instructions.
- Built a custom Google Maps implementation that showed the robot fleet in Dubai with status, direction, and custom indoor overlays.
React Developer for Content Marketing Platform
Revcontent LLC
- Designed and developed the rebuild of the company's client-facing API, including a thorough testing pipeline, API documentation, and very granular input validation with the JSON schema.
- Designed and built the new front-end, using the newly built API and significantly reducing the legacy front-end's complexity, which had significantly slower load times.
- Implemented a front-end component library with Bit, which would be the foundation of future design work to homogenize the brand across all online assets.
CTO for Business Automation Platform
Entrepreneur First
- Built a business process automation platform that allowed customers to streamline and collaborate on complex business processes and automate them.
- Designed and built a complex drag-and-drop flowchart interface that allowed the seamless editing of business processes.
- Brought the project live and onboarded the first nine enterprise clients onto the tool.
Director of Business Operations
DVELP Ltd.
- Automated our hiring pipeline by automatically assigning candidate interviews to members of the team based on their expertise and availability. Hired 14 people.
- Automated our payroll calculation by building an expenses platform that worked across the four different geographies we had employees in.
- Built an HR chatbot that gave team members quick answers like "How many holidays do I have?", "What is our maternity/paternity policy?", "Who is my line manager?", etc.
- Obtained the ISO27001 Information Security certification to streamline our sales process with enterprise-level customers.
COO
Hummingbird Technologies
- Designed and developed an ERP platform for a drone business to ensure the right pilot is at the right time and place with the right drone and camera.
- Designed the system that is used for coordination of flights, pilots' operational performance monitoring, automatic flight path programming, billing, and customer service.
- Developed the system using Python's Flask framework and hosted the service on the Heroku server. The service has 60 weekly users that log in to schedule the flights for the week.
COO
Lendable
- Built an automated customer self-service function that allowed customers to manage their loans independently.
- Provided complex all-in-one account view using D3 for customer service team that reduced average call times by 30%.
- Developed an automated email and SMS campaign for customers that needed to take actions on their account, allowing them to do so on the move.
Freelance Developer
Deliveroo
- Developed a tool to communicate demand forecast to riders.
- Built visualization of weekly workloads in GoogleSheets.
- Set up the Heroku server to run analysis and communicate results daily.
Consultant
Analysys Mason
- Served as a management consultant building custom asset valuation models for mobile network operators.
- Supported one of the UK mobile operators during the 3G spectrum auction.
- Calculated the cost to supply each postcode in the UK with fiber broadband.
- Determined the value of 200,000 mobile towers in Russia.
- Led a team of five analysts in building an innovative valuation methodology in record time.
Experience
React-Redux App Showing Analytics for Advertising Platform
React/Next.js App Showing Map of Luxury Resort
https://azaren.vercel.app/layoutEry-API
https://www.npmjs.com/package/ery-apiThe idea is to never have to read API Docs again. Give it a go with:
npm i ery-api -g
360-degree Feedback Platform Built with Firebase and React
HR Chatbot
Snoozethat
Language Learning Platform
Offline Tasks Tool
Art Gallery ERP
Education
Master's Degree in Business Administration
INSEAD - Singapore
Master of Science Degree in Management and Strategy
London School of Economics - London, United Kingdom
Bachelor of Engineering Degree in Mechanical Engineering
University of Nottingham - Nottingham, United Kingdom
Certifications
Professional Cloud Developer
Google Cloud
Skills
Libraries/APIs
Node.js, React.js, Google Sheets API, Google Maps Development, REST API, Twilio Development, API Development, SQL, Gmail API, WhatsApp API, jQuery, D3.js, WebRTC, Puppeteer, Stripe Development, Pipedrive API, Google Maps Development, Pandas, NumPy
Tools
Dialogflow, Git, Jira, GitHub, Prisma, BigQuery, Google Sheets Development, ChatGPT, Amazon Elastic Container Service (ECS), DataGrip, GIS
Languages
SQL, CSS, JavaScript, TypeScript, HTML, HTML5, Python, R, Visual Basic, PHP, Visual Basic
Frameworks
Realtime, Express.js, Next.js, Redux, Flask, Material UI, Jest, React Native, Angular, Tailwind CSS, JavaScript
Paradigms
Agile Development, REST, Microservices Development, SEO, Mobile App Design, ETL, Agile Development
Platforms
Cloud Engineering, Twilio Development, Firebase, Docker, Cloud Run, iOS, HubSpot Development, AWS, Mapbox, Android, AWS Lambda, Heroku, Salesforce Design, Visual Studio Development
Storage
NoSQL, MongoDB, MySQL, Google Cloud Datastore, Amazon S3, PostgreSQL, Elasticsearch, Google Cloud Development
Other
System Security, APIs, Workflow, Cloud Architecture, Data Analysis, Data Architecture, Front-end, Architecture, Team Leadership, Interim CTOs, Full-stack, CI/CD Pipelines, Fintech Development, Key Performance Indicators (KPIs), Cloud Tasks, Full-stack, Chatbot Development, NLP, Generative Pre-trained Transformers (GPT), OpenAI GPT-3 API, Styled-components, API Integration, SVG Design, Website Audits, Solution Architecture, AI Chatbots, LLM, OpenAI, Firebase Cloud Functions, Low Code Development, Airtable, Data Engineering, Software Development, Stock Trading, AWS Cloud, MERN Stack, Language Models, SSO Engineering, PDF, Supabase, Command-line Interface (CLI), Google Cloud Functions
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