Benjamin Sientzoff
Startup Sorcerer
I am an entrepreneur and a developer with an academic background in software engineering and computer science. I built strong expertise within web development with technologies like TypeScript, React, NodeJs, SQL databases as well as NoSQL and Kubernetes – to mention a few.
I love prototyping and cutting-edge tech. At Papperslöst AB, I turned their prototype into a production-grade application, Klientlistan. As an advocate for Remix, I ported succesfully Klientlistan to Remix, used in production by hundreds of users.
I work as a volunteer and I am involved as an activist bacause I believe in social and climate justice. I am a board member of RSFL Umeå, a local chapter of RSFL.
My mother tongue is French, I am fluent in English and can hold a simple conversation in Swedish.
Testimonials
“Benjamin is an extremely talented full-stack developer with a team-first mindset. Having Benjamin as a co-founder and lead developer was a key element to building Nesta. He’s a natural pragmatic problem solver. Would love working again with him in the future.”
“Benjamin is a great “unicorn” developer. I worked with him when he acted as a co-founder and developer for a real estate start-up. He is a structured, dedicated team member that always delivers high quality code both front - and backend. He also managed to guide other developers along the way. He is not afraid to learn new things or challenge established norms or structures. Benjamin is kind of a self-taught genius, with a lot of experience in both physical and digital development, navigating many complex problems to solve with ease.”
Swiss Army knife web developer
Broad skills range from a strong academic background and hand-on experience as a full stack web developer, dev-ops and co-founder.
- Web development
Remix.run, react-router
React.js, Node.js
Redux, Express.js
TailwindCSS, HTML, (S)CSS
- Dev-ops
Google Cloud Platform: App Engine, Compute Engine, cloud build
Kubernetes Engine, Docker
Nginx
- Database
Relational databases SQL, PostgreSQL, PL/SQL
NoSQL MongoDB
JSON, XML, Xpath
Prisma
Postgraphile
- Programming languages
Typescript/JavaScript, Python
C, C++, Java, Bash, OCaml, ADA95
Assembly language (MIPS, x86), Arduino, Processing
- Other skills
Distributed Systems development (GraphQL, RESTful and SOAP applications)
Real Time Systems (with Trampoline RTOS)
Network and UNIX systems administration
Design Patterns
Artificial Intelligence
- Tools
npm, Yarn, PM2
git, GitHub
babel, eslint, jest, webpack
bash, zsh, npm, yarn
Codacy
- Modeling languages
UML
Merise
Petri nets
- Operating systems
Mac OS X
Linux (Ubuntu, Debian, Alpine, CentOS)
- Languages
French: Mother tongue
English: Completly bilingual, with a mild French accent
Swedish: I can introduce myself, read simple texts and understand simple conversations. I am currently learning
Background
2023
November
As part of my recovery to work after a burnout, I join Zymego for an internship (arbestprövning) as a full stack developer. Learning GraphQL and PostGraphile on the way.
April
Career Break During my break, I temporarily stepped away from work due to burnout. This break was necessary to prioritise my well-being and recovery. By taking this step back, I aimed to regain my physical and mental health, allowing me to return to work with renewed energy, focus, and a greater capacity to contribute effectively. It was a thoughtful decision taken to ensure that I could ultimately bring my best self back to my professional responsibilities.
March
Joined RSFL Umeå as a board member.
February
Kicked off the Sex Educated project in partnership with RSFL Umeå and the region Västerbotten.
2021
February
Start as lead full stack developer at Papperlöst AB.
2020
December
Nesta files for bankruptcy.
2018
May
Nesta speeched as one of the three most promising start-ups at Umeå Tech Arena.
Google Cloud OnBoard, Stockholm.
2017
October
Nesta is selected for Di Startup Tours.
Launching the close beta of Nesta.
June
Joining Sea Shepherd Scandinavia as a volunteer.
March
Joined the Nesta team as a cofounder and a fullstack developer.
2016
October
Start working as a fullstack developer at Thingmap (now Qui). I extended the RESTful API (backend), I improved and implemented new features to the frontend applications (web and mobile). I dealt with Node.js, AngularJS, REACT and MongoDB. I also wrote a lot of tests and fixed bugs.
May
Umeå Tech Arena.
Django workshop at Codemill.
2015
September
Master's degree, first year in Computer Science at Umeå University as an exchange student. Where I studied Aritficial Intelligence, Databases and Distributed Systems.
August
Moved to Umeå, Sweden.
Graduated from the University of Nantes in Computer Science.
April - July
Third internship within the Real Time Systems team of the IRCCyN leaded by Richard Urunuela, still about the ANR ImpRo demonstrator. This time, my task was to build a new robot with metal parts.
2014
September
Volunteering for the thirteenth edition of Scopitone, a festival about Digital art.
June - July (12 weeks)
Second internship at IRCCyN with the Real Time System team, leaded by Richard Urunuela. The purpose was adding a camera to the Lego Mindstorms NXT. The NXT is used to control the robots of the ANR ImpRo demonstrator. The camera is actually an Arduino Uno board connected to a CMUcam4 and five proximity sensors. The Arduino board manages the CMU cam and the sensors and send the data to the NXT via I2C.
2013
September
Start my bachelor degree in Computer Science at the University of Nantes, France.
Start part-time working as a cashier at a mini-market.
Volunteering for the twelfth edition of Scopitone, a festival about Digital art.
July
Graduate two-years degree in software engineering (DUT : Diplôme Universitaire de Technologie Informatique) from The University of Nantes, France.
May - June (10 weeks)
First internship at IRCCyN, within the Real Time Systems team. I was leaded by Jean-Luc Béchennec, Sébastien Faucou and Richard Urunuela. During this internship, I designed a first prototype for the demonstrator of the ANR ImpRo project. The demonstrator is a table where two robots hit back and forth a ball. It is a kind of an air-hockey. Robots are built with Lego and controlled by the Lego Mindstorms NXT. Trampoline RTOS, the operating system developed by the team, allows the robot to be autonomous with Real Time features. It runs on the NXT.
2011
June
Benjamin registered on GitHub.