Oussama Krifa - Senior Frontend Developer, TypeScript

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Berlin, Germany

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Experience

Oct 2023 - Present

2 years 11 months

Berlin, Germany

Senior Frontend Developer

DKB Code Factory GmbH

Jul 2023 - Present

3 years 2 months

Berlin, Germany

Founder

The Krifa Way

Mentor software engineers willing to switch to freelance
Help navigate German bureaucracy

May 2023 - Present

3 years 4 months

Founder

WebWays Solutions GmbH

Mar 2023 - Sep 2023

7 months

Berlin, Germany

Senior Frontend Developer (Freelance)

ToolTime

Transform web application into a white-label product
Work closely with PO and designer to build reusable components leveraging design tokens

Aug 2022 - Jan 2023

6 months

Berlin, Germany

Fullstack Javascript Developer (Freelance)

Wimedko GmbH

Gather requirements with doctors and nurses
Implement and deliver MVP for medication plans, note sharing, and patient examinations
Integrate with existing white-labeled solution for remote patient monitoring

Jun 2022 - Aug 2022

3 months

Berlin, Germany

Senior Frontend Engineer (Freelance)

On

Implement reusable components for the main online shoes ordering platform

Mar 2022 - Oct 2022

8 months

Berlin, Germany

Senior Backend Engineer (Freelance)

Pixaera

Own backend projects: prioritisation, project breakdown, direct client contact, code review, managing outsourced development, interviewing and hiring
Design software architecture and develop backend features
Write SQL queries to export custom business reports

Jan 2022 - Feb 2022

2 months

Berlin, Germany

Senior Frontend Engineer (Freelance)

mediafellows

Implement UI features and components for analytics (charts, tables, pagination)
Perform various maintenance tasks
Collaborate with frontend developers, backend, and QA
Use Webstorm, ReactJS, Typescript, ChartJS, BlueprintJS, ESLint

Jul 2021 - Present

5 years 2 months

Berlin, Germany

Fullstack Javascript Developer

Independent

Work in agile environments on projects in several industries

Jul 2021 - Dec 2021

6 months

Berlin, Germany

Senior Frontend React/Typescript Engineer (Freelance)

AnyDesk Software GmbH

Develop web-app components and features for new account management console MyAnyDesk2
Collaborate with product owner and developers
Iterate quickly focusing on quality, maintainability, and performance
Contribute to UI/UX
Use Webstorm, ReactJS, Typescript, React-Query, Material-UI, Keycloak, Jest, Docker, Agile/Scrum, Git

Jul 2021 - Oct 2021

4 months

Berlin, Germany

Software Engineer

DIGITTY

Set up project with CI/CD and Jest unit testing
Implement JS linting using Google Cloud Platform
Develop API endpoints for Firestore database access
Integrate with Jira using OAuth2, retrieve project data, register event triggers, and store transformed paginated data in Firestore

Oct 2018 - Jul 2021

2 years 10 months

Berlin, Germany

Senior Software Developer

Safety io

Reshape legacy web app with latest tools, testing, reusability, performance, and UI best practices
Design and implement features focused on business needs
Implement APIs, database queries, and documentation
Contribute to UX/UI, DevOps, CI/CD, and process improvement
Use Webstorm, Angular/AngularJS, NodeJS, Jest, Cypress.io, Typescript, ESLint, AWS, Ansible, Docker, Swagger, Jenkins, RethinkDB, PostgreSQL, Atlassian tools

Mar 2018 - Sep 2018

7 months

Berlin, Germany

Frontend Developer

Tourlane GmbH

Redesign custom trip-planning platform
Collaborate with designers and improve team processes and motivation
Build a living styleguide (reusable components library)
Rebuild customer-facing web app Tourlane.de focusing on maintainability, testing, and clean code
Use Webstorm, React, NextJS, Webpack, Babel, CSS-modules, Jest, Cypress.io, ESLint, Sentry.io, AWS, React-Styleguidist

Dec 2015 - Feb 2018

2 years 3 months

Berlin, Germany

Frontend Developer

EatFirst

Work on eatfirst.com
Implement and redesign website features
Use ES6, RiotJS, BackboneJS, Flux architecture, SCSS

Sep 2015 - Dec 2015

4 months

Tunis, Tunisia

Software Engineer

Tunpixel

Develop various projects including app.ironridge.com as frontend developer
Use AngularJS, Snap.svg, Gulp

Feb 2015 - Jun 2015

5 months

Tunis, Tunisia

Engineer Diploma Thesis - Software Engineer Intern

Rosafi Holding

Develop server-side scripts to automate cloud resource setup, configuration, and creation
Build web API for CRUD and custom operations on storage and virtualization resources
Create AngularJS web application consuming the API with a user-friendly interface
Use Python, GlusterFS, Libvirt, KVM, LXC/LXD, Django, Django REST Framework, AngularJS, Paramiko, HTML5, Bootstrap, Git

Jul 2014 - Aug 2014

2 months

Tunis, Tunisia

Software Engineer Intern - Python Developer

MTC Consulting

Develop features in OpenERP web module
Build web application consuming web services
Use Python, OpenERP, Tryton ORM, Django, JSON-RPC, Scrum, PostgreSQL, Git

Jul 2013 - Aug 2013

2 months

Tunis, Tunisia

Software Engineer Intern - Windows Phone 8 Developer

Linkao

Develop Windows Phone 8 marketplace application
Consume JSON web services to replicate site features
Use C#, XAML, JSON, REST

Industry experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Banking and Finance, Professional Services, Food and Beverage, Healthcare, and Tourism.

Information Technology

Banking and Finance

Professional Services

Food and Beverage

Healthcare

Tourism

Business area experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Product Development, Human Resources, Legal, and Project Management.

Information Technology

Product Development

Human Resources

Legal

Project Management

Summary

Senior Software Engineer (8+ years of experience).

70% freelancer: open for opportunities as a Freelance FullStack JavaScript Developer (React/NodeJS)
30% entrepreneur: working on my next big thing / discussing interesting ideas/ networking
Good technical background in software design and development.
Strong teamwork, collaboration and leadership skills developed throughout several extra-curricular activities and responsibilities.
Passionate about new technologies, open minded and fast learner.

Skills

Chart.Js
Blueprintjs
Eslint

Languages

Arabic

Native

English

Advanced

French

Advanced

German

Intermediate

Education

Oct 2012 - Jun 2015

ENSI - National School of Computer Science

Engineer's Degree · Computer Science · Tunis, Tunisia

Oct 2010 - Jun 2012

IPEIM, Preparatory Institute for Engineering Studies

General Diploma in Physics and Technology · Engineering, Physics/Technology · Monastir, Tunisia

Oct 2009 - Jun 2010

Ibn Sina Secondary School

Baccalaureate · Technology · Tunisia

Certifications & licenses

Statistics

Experience

Total positions 18

Experience in Information Technology 11 y

Avg length 1 y 3 m

Longest experience 5 y 1 m

Global experience

Countries worked in 2 (Germany, Tunisia)

Primary country Germany

Expertise

Recent roles Senior Frontend Developer, Founder, Senior Frontend Developer (Freelance)

Main industries Information Technology, Banking and Finance, Professional Services

Main business areas Information Technology, Product Development, Human Resources

Qualifications

Highest degree Bachelor

Certifications earned 1

Profile

Member since

April 2024

Last update

April 2026

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Frequently asked questions

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Oussama is based in Berlin, Germany and can operate in on-site, hybrid, and remote work models.

Oussama speaks the following languages: Arabic (Native), English (Advanced), French (Advanced), German (Intermediate).

Oussama has at least 11 years of experience. During this time, Oussama has worked in at least 14 different roles and for 18 different companies. The average length of individual experience is 1 year and 8 months. Note that Oussama may not have shared all experience and actually has more experience.

Based on recent experience, Oussama would be well-suited for roles such as: Senior Frontend Developer, Founder, Senior Frontend Developer (Freelance).

Oussama's most recent position is Senior Frontend Developer at DKB Code Factory GmbH.

In recent years, Oussama has worked for DKB Code Factory GmbH, The Krifa Way, WebWays Solutions GmbH, ToolTime, and Wimedko GmbH.

Oussama is most experienced in industries like Information Technology, Professional Services, and Banking and Finance. Oussama also has some experience in Food and Beverage, Tourism, and Healthcare.

Oussama is most experienced in business areas like Information Technology, Product Development, and Human Resources. Oussama also has some experience in Legal and Project Management.

Oussama has recently worked in industries like Information Technology, Professional Services, and Banking and Finance.

Oussama has recently worked in business areas like Information Technology, Product Development, and Human Resources.

Oussama holds a Bachelor in Engineering, Physics/Technology from IPEIM, Preparatory Institute for Engineering Studies.

Oussama has 1 certificate: LPIC-1 - 101 Exam.

The availability of Oussama needs to be confirmed.

Daily rate distribution

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<€800 €800-1200 €1200-1600 €1600+

The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.

Average rates for similar positions

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Daily rate avg. 880 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

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Median rate 800 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Calculated based on our freelancers’ daily rates as of 26 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.