Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Hi, I'm Josef Erben, a software engineer and founder with 10+ years of experience. I care deeply about good design, simplicity, and a short feedback loop. I design reliable platforms, mentor teams, and drive fast experimentation. I value pragmatic engineering and delivering delightful products.…

Josef Erben

Full Stack Developer, Web Developer, Back-End Developer, +4





Hi, I'm Josef Erben, a software engineer and founder with 10+ years of experience. I care deeply about good design, simplicity, and a short feedback loop. I design reliable platforms, mentor teams, and drive fast experimentation. I value pragmatic engineering and delivering delightful products.…

Available to hire

Hi, I’m Josef Erben, a software engineer and founder with 10+ years of experience. I care deeply about good design, simplicity, and a short feedback loop.

I design reliable platforms, mentor teams, and drive fast experimentation. I value pragmatic engineering and delivering delightful products.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Work Experience

Senior Software Engineer at beeps

August 1, 2023 - Present

Designed & built a reliable AI-assisted on-call platform for managing and resolving incidents; Mentored a team of 7 engineers with regular pairings and in-depth code reviews; Drove roadmap with fast experimentation and R&D in close collaboration with CEO; Ensured reliability with end-to-end testing and meaningful ~90% coverage of complex core workflows; Maintained full CI run <1-2 min for a fast-growing monorepo containing 15+ sub-projects

Co-Founder & CTO at Depozit AG

February 1, 2021 - January 31, 2023

Co-founded startup and built an innovative financial product for the Swiss real-estate market with a team of 7; Built a simulator for banking infrastructure with 3 engineers to develop the MVP independently from actual landlords and banks; Led development of mobile app and onboarding flow, including complex KYC flow for a regulated environment; Raised seed funding and got accepted into Swiss fintech accelerator based on prototype

Co-Founder & CEO at Oxidizing Systems GmbH

March 1, 2019 - January 31, 2021

Co-founded agency and built various client projects with a team of 3 software engineers; Designed and built PhD recruitment app with complex, data-driven multi-step forms for University of Zurich, processing hundreds of applications per semester; Designed and built a data-driven experiment management platform for University of Zurich with highly sensitive personal data; Built a fully featured web framework in OCaml to meet strict customer requirements around correctness

Software Engineer at Cenfura

November 1, 2018 - April 30, 2020

Designed and built crypto trading platform with order matching engine processing 10k+ trades/s with support for complex order configurations; Built a system for the safe storage and processing of customer data with support for end-to-end tests; Implemented correct arithmetic across currency pairs and single assets with precision-critical decimal rounding

Software Engineer at University of Zurich

January 1, 2018 - October 31, 2018

Maintained and extended a data-driven survey framework for research in Economics supporting 17,000+ concurrent subjects; Led migration to a Docker Swarm-based deployment pipeline after building a proof of concept based on Kubernetes; Built a project management tool on top of GitLab to support Scrum-based workflow

Software Engineer at VoiceRepublic Media AG

June 1, 2017 - November 30, 2017

Maintained and extended a audio and video streaming platform for physical events such as the Leipziger Buchmesse; Maintained and extended frontend to remote-control physical streaming devices; Built streaming player with volume-over-time visualization for easier content navigation

Junior Software Engineer at Quatico Solutions AG

December 1, 2015 - October 31, 2017

Worked on large enterprise CMS instances using Magnolia and AEM; Built internal dashboards for 5 teams showing CI status, open issues and urgent blockers; Developed JIRA time-tracking tool to aggregate hours to automate customer invoicing and to save dozens of work-hours per month