Oscar te Giffel

Polariks (for HeadFWD)

Senior Fullstack Developer   Feb. 2023 — Present 

Polariks is a data collection platform that provides insights into your greenhouse growing process. As part of the development team, I have been tasked with improving the Scrum process and the development on the frontend. These were my primary achievements during this project;

• Supporting the scrum process; as always with a startup there is a lot of room for improvement of the development proces. I worked closely with team members to identify areas of improvement and to implement changes that would increase productivity.
• Developing FE and Backend; improve the frontend using Typescript and React. The BFF was a NestJS GraphQL backend that wrapped REST services. Because of the large quantity of data that needed to be aggregated, we needed to improve a lot in the BFF to be able to handle the load. The improvements were implementing a caching layer and optimizing the Graphql relations.
• Coaching junior developers

Skills: React, Java, Typescript, Apollo, Mui, GraphQL, NestJS, Influx, Vite, Spring, Docker, Kubernetes, Terraform, Scrum, Devops, IaC, pnpm

KVK (for HeadFWD)

Senior Frontend Developer   Jun. 2021 — Jan 2023

As the Senior developer in one of the online teams at KVK, I was responsible for the frontend of seven priority services that are used by every business entity in The Netherlands.

• Consultant & Advice; to improve the quality of the software I have advised the introduction of multiple improvements
  • Domain Driven Architecture; the applications are set up a Domain Driven Architecture which have the advantage that a platform remains scalable and is understandable for new developers.
  • From monolith to microservices; started the project and inspirited the architect to push the frontend from a single monolith into separated frontend applications.
  • Finite state machine; some applications are a multiples of multi steps forms that had a difficult state problem. With the introduction of Finite State Machine with xState and we are removing complexity and making it easier to verify the implementation with the business.
• Lead Frontend; as the Lead Frontend in my team I had to guide 4 other frontend developers. Set a technical vision on existing and lay down the frontend architecture on a new application.
• Recruitment support; I was also included in the recruitment process for frontend developers.

Skills: Typescript, React, HTML(5), CSS(3), Javascript, Jest, Domain Driven Design, Redux, xState, Scrum, yarn, Sonarqube, Jira, Gitlab

HeadFWD

Senior Frontend Developer   Feb. 2021 — Present 

• Chapter Lead Frontend; Help improve the technical skills of the frontend developers and bring the team together by organising chapter days and presentations.
• Recruitment support, responsible for the assessment of technical applicants. Next to this, I educates other developers so that technical interviews are aligned and generally at the same high level
• Innovation Consultant; I am active for innovation projects for clients, with my vision and technical experience, I helps to add value quickly. - Personal Development; I have demonstrated professional growth, enabling him to effectively assist companies in providing superior software development services and a addition for your team.
• Social media & Vision; helping the social media department with the online presence

Deloitte (for HeadFWD)

Senior Frontend Developer   March. 2021 — Jun 2021 

I assisted Deloitte in the digitisation of escape rooms. Through gamification, Deloitte wanted to make people more aware of important topics within an organisation, such as privacy data, AVG legislation, and password protocols. Due to current developments, the escape rooms had to be made digital. I helped Deloitte with the process of digitising the escape rooms. In this process, I created various games, including memory and mastermind games. I helped to conceive, design, and implement the games. All applications were created in NextJS, Typescript, React, and a design using TailwindCSS.

Skills: React/Typescript, NextJS, TailwindCSS, NPM

MoneyMonk

Medior Frontend Developer   July. 2019 — Jan. 2020 

I have always wanted to work abroad. My former employer MoneyMonk offered him this opportunity and I took it with both hands. The assignment I was given was to lay a new foundation for the frontend of the core application. React is the basis of the architecture, I have brought this to the latest React version and have also made improvements in terms of architecture.

Rebuild frontend architecture; the frontend have been set up from scratch, using the latest techniques such as Redux, Tailwind, React Query, Typescript and Kubernetes

Migrate to kubernetes; migrating LAMP stack appliation into a Docker and into a kubernetes cluster. Using HELM to Also building a Spring application that was able to manage the kubernetes cluster. Deploying different versions of the application and seeing the health of the those applcications.

Internal application migration; migration of current backend applications to Kotlin. NextJS was used for the frontend.

Software Development Process; I helpt to shape the development process to move from startup to scale up. Implementing CI/CD and microservices architecture.

Skills: Typescript, React, Spring Boot, Kotlin, Docker, Kubernetes, Helm, NPM, Yarn, Gitlab, Jira, Sonarqube

Yokogawa (for HeadFWD)

Senior Frontend Developer   July. 2019 — Jan '20

Yokogawa is a market leader in the field of the process industry. They provide services, products, innovation, and software for the process industry. Within Yokogawa, various devices and computers are used to control various processes and production machines. These devices are equipped with screens that are used by employees to control them. I was responsible for setting up and leading the frontend part of this project.

• Rebuild; setting up the frontend again for a large part of the applications. I completely replaced the old application (Django stack)
• Communication with stakeholders; communication with the product owner and business analysts to collect and translate requirements
• Browser compatibility; various devices and computers use an outdated system. I had to use Vanilla JS for this
• Design; for a large part of the application, I helped develop and fine-tune the designs for all screens.

Skills: Typescript, React, HTML(5), CSS(3), Javascript, jQuery, Styled Components, SASS, Jira, Git, Agile

HeadFWD

Fullstack developer   Jul. 2019 - Jan '20

As a medior software developer at HeadFWD, I have gained experience working on projects for various clients. I have developed a deep understanding of the software development process, from requirement gathering and analysis, to design and implementation, to testing and deployment. I have honed my skill in full-stack development, with a focus on building scalable and maintainable applications using modern technologies and best practices. In my current role, I have successfully delivered several high-quality projects, and is eager to continue growing and learning as a developer.

Skills: JavaScript, ReactJS, NodeJS, VueJS, Restful, Unit Testing, MongoDB, MySQL, Agile, SCRUM

MoneyMonk

Fullstack developer Sep. 2016 — Jul. 2019