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Kerem Sevencan's CV

Kerem Sevencan — keremciu.github.io

Tech Lead Software Engineer with 14+ years of experience - TypeScript Enthusiast - High EQ

Specialized in

  • Building scalable web apps with a focus on Testing and Security.
  • Creating user-centric, accessible and consistent Design Systems.
  • Promoting efficient async communication, collaboration, and documentation.
  • Experience in Fintech, Adtech, Devtools, Cybersecurity, Insurtech, and IPS domains.

Work Experience

Oct 2022 - Aug 2023 Rapid, Berlin, DE — Tech Lead Software Engineer

STACK React / nextjs / single-spa / python / k8s / aws / eks / nodejs / grahpQL
  • Implemented CI/CD and 12-factor app principles for a critical Python monolith.
  • Ran large-scale integration projects with multiple teams, also serving as a PM to design the roadmap.
  • Led a team in AWS account consolidation, also migrating from ECS to EKS.
  • Automated the design-to-frontend handover process by implementing Design Tokens.
  • Created a company-wide microfrontends template for standardized UI development.
  • Ensured enterprise-grade quality by implementing robust testing and security measures.

Dec 2021 - Oct 2022 Feather Insurance, Berlin, DE — Senior Software Engineer

STACK React / react-testing-library / nextjs / emotion / webpack / docker
  • Led a token-based auth to cookie-based auth transition project with head of engineering.
  • Created a testing culture for frontend applications and made workshops and presentations.
  • Wrote many documents(ADR/ERD/RFC) to improve code quality/understanding all across engineering.
  • Actively participated in the hiring process and mentored other software engineers.

Sep 2019 - Nov 2021 Cobalt.io, Berlin, DE — Senior Software Engineer

STACK React / react-testing-library / cypress / emotion / styled-system / webpack / circle-ci / docker
  • Worked on automation features to reduce manual clicks(90 -> 12) around the pentest management process.
  • Built a design system with styled-system lib and followed tokens > utils > components pattern.
  • Introduced contract testing to make sure backend services do not break web apps. It's a network mock solution built with mock service worker and openapi-backend libs which consumes OpenAPI specs.
  • Landed e2e infrastructure with Cypress and implemented happy-path tests. (had also playwright)
  • Improved unit/integration test quality by transitioning from enzyme to react-testing library.
  • Wrote many documents(ADR/ERD/RFC) to improve code quality/understanding all across engineering.

Jan 2017 - Mar 2019 Adphorus, Berlin, DE — Lead Frontend Developer

STACK [Dashboard & Client App, Tools] React / Redux / Redux-saga / css-modules / post-css / webpack / jenkins / docker
  • Hired 8 people for the front end and helped them increase their knowledge base and productivity.
  • Made internal presentations to explain the business domain and tech.
  • Worked with the design team on rebranding to build a visual language that is used by consumer-facing interfaces.
  • Solved scalability problems(aws lambda) for big hotel/airline feeds to create visual ads automatically.

🌟 Adphorus was acquired by Sojern in November 2017.

May 2016 - Dec 2016 PointrLabs, London, UK — Lead Frontend Developer

STACK React / Redux / Redux-thunk / material-ui / GraphQL / nodejs (express) / sass / gulpjs
  • Built a server application from scratch to serve .NET REST API to mobile apps and a new dashboard for serving indoor location data. It fixed dynamic object modeling problems between development teams.
  • Made internal presentation about GraphQL and Redux here to increase adoption.
  • Built a responsive website with automated deployment orchestration.
  • Built a small access management tool to help out the marketing team in customer specific demos.

Sep 2014 - Oct 2016 Asseco South Eastern Europe, London, UK — Frontend Developer & Designer

STACK React / Angular1 / GulpJS / Sketch
  • Built iPad and mobile applications with Angular1/React and Cordova.
  • Helped the product team with different phases like business analysis, wireframing and design.
  • Made simple interfaces with GulpJS for internal dev tooling.
  • Acted as a technical supervisor and joined many client meetings as I worked on several web projects.

Apr 2014 - Oct 2014 Online People, London, UK — Frontend Developer & Designer

STACK Angular1 / Cordova / Grunt / Sketch
  • Built a hybrid web application from scratch. Transitioned a Facebook app into a cross-device app.
  • Designed all design assets of the application and the company itself.

Oct 2010 - Dec 2012 YCEO, Istanbul, TR — Frontend Developer

STACK jQuery / Core Javascript / CSS3 / Python / Django
  • Implemented client-specific designs on top of the Django View Layer like custom Shopify themes.
  • Developed reusable jQuery components like slider, cart and checkout components.

Jan 2010 - Oct 2010 Bilginet Bilisim, Istanbul, TR — Frontend Developer

STACK jQuery / CSS / PHP / mysql / ASP
  • Implemented Client specific designs on top of basic HTML tables.
  • Developed reusable Login and Card components by using jQuery and AJAX.
  • Developed a Facebook app that works as a tab on our client's facebook pages to show their products.

Education

2011-2016 Maltepe University, Visual Communication Design

2013-2015 Cardiff MET University, Graphic Communication

Contact

| GitHub | github.com/keremciu | email | ciukerem@gmail.com | | linkedin | linkedin.com/in/keremsevencan | twitter | twitter.com/keremciu |