Sara M.-Senior Product Owner | IT Project Manager | E-Commerce & Digital Platforms
Check rate
Experience
DevOps Engineer / Digital Transformation Consultant
INTO Branding
- Advising clients on digital transformation, IT architecture and the introduction of cloud-based environments.
- Gathering, evaluating and prioritizing customer requirements, as well as coordinating projects and programs based on scope, time, quality, budget and risk.
- Designing, documenting, maintaining and developing IT environments, automation and containerized applications.
- Implementing digital platforms, including e-commerce and ordering solutions, event platforms and the product concept for a legal-tech platform.
- Working in interdisciplinary teams and communicating effectively between clients, service providers and technical stakeholders.
- She accompanied companies in their transformation into the digital and agile working world, whether in business process or IT architecture consulting or as part of managed services.
- She developed individual strategies for the digital transformation of our customers and designed new IT environments in the cloud.
- As part of demand management, she gathered, evaluated and prioritized customer requirements.
- She worked in project and program management and coordinated our service providers and those of our customers, monitored their own projects in terms of scope, time, quality and budget and kept an eye on the associated risks.
- She led projects successfully to the end and ensured a professional transfer to regular operation.
- Ms. Sara Mussie has an exceptional understanding of the structure and optimization of IT infrastructures and various cloud technologies as well as modern IT architectures.
- Her areas of responsibility were the development of solutions, considering the service strategy and the possibility of automation, working on design and architecture documentation for projects and services, as well as working on the structure, maintenance and development of IT environments, automation and related tools for our microservice environment and containerized application.
- She was involved in improving our processes and the tool chain used.
- She is confident in handling common IT processes and IT standards.
- Ms. Sara Mussie has very good knowledge of PHP, PHP OOP, Laravel, MySQL, VueIs | Vuex, HTML | CSS | JS, Bootstrap, MongoDB, NodeIs and Python.
- To this day, Ms. Sara Mussie remains available to us for consultation requests from specific clients.
US Entertainment Lawyer
- Software development and product conceptualization of a talent management platform for a US entertainment lawyer; collaboration with a development team in Bangalore.
Founder, Managing Director & Lead Product Owner
apri x GmbH, formerly RoamApp GmbH
- Conceptualization and development of RoamApp, a mobile travel application with roaming information, location-based nearby places and an integrated currency converter. The product was discontinued in March 2019 due to changes in Google policies and limited technical access options.
- Overall responsibility for the product strategy, conceptualization, prioritization and implementation of a digital platform ecosystem for African markets.
- Development of ApriShop, a multi-vendor marketplace with product, seller, order, payment and fulfillment processes, comparable to the core workflows of major e-commerce marketplaces.
- Development of ApriDel, a delivery and driver platform with delivery requests, driver assignment, status tracking, wallet, fee logic and local fulfillment models, inspired by on-demand platforms such as Uber and Bolt.
- Development of ApriAd, a data-driven B2B SaaS marketing platform with audience segmentation, campaign management and location-based customer targeting based on an extensive structured recipient database.
- Translating business models and operational requirements into user journeys, features, backlogs, tickets, acceptance criteria and release plans.
- Managing international backend and Android developers: task allocation, prioritization, clarification of technical requirements, reviews, testing and acceptance.
- Administration of Jira, Confluence and Bitbucket, as well as maintaining Git workflows, branches, pull requests and development documentation.
- Building and continuously operating the AWS infrastructure, including EC2, S3, SES, database connections, Ubuntu/Apache, staging and production environments.
- Serving as the interface between product, development, operations, design, partners and potential customers; independently resolving technical and operational issues.
- Establishing the Namibian subsidiary and carrying out an operational proof of concept in Windhoek.
- ApriShop – E-Commerce Marketplace: Multi-vendor platform for merchants and buyers: catalog, categories, product data, seller flows, orders, checkout, delivery integration and international market orientation.
- ApriDel – Delivery Infrastructure: On-demand delivery platform with driver app and backend: delivery creation, driver management, status processes, wallet, fees, self-fulfillment and local agency models.
- ApriAd – B2B SaaS Marketing Platform: Data-driven SMS marketing platform with audience segmentation by age, location and geographic proximity, campaign processes for business customers and scalable recipient data processing.
- Legal-Tech & Client Platforms: Product and feature conceptualization for document search, roles and subscriptions, online consulting, webinars and appointment management, as well as OCR/cloud integrations.
IT Infrastructure Manager & Systems Administrator
Eberhard Karls University Tübingen
- Designing, building and managing the entire IT infrastructure of the Hector Institute and LEAD Graduate School in cooperation with the university's central IT department.
- Administration of servers, Windows domains, Active Directory, as well as client and server systems.
- Responsibility for hardware, data security, data protection and IT support for research.
- Coordinating technical collaboration with university departments and external research partners in Germany and abroad.
- Independently building a server infrastructure and integrating it into the central infrastructure of the University of Tübingen.
Freelance Fullstack Web Development & Design
ProDesign Bulgaria
Systems Administration and Web Development
University of Tübingen
- Administration of a grade database and teaching computer science, multimedia technology, and numerical mathematics.
Linux Systems Administrator & Infrastructure Automation
linux install
- Installation, configuration, and integration of Linux and UNIX servers.
- Administration and automation of servers, networks, and clusters, as well as troubleshooting, second-level support, system security, and technical documentation.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Advertising, Transportation, Retail, Tourism, and Education.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Operations, Product Development, Project Management, Strategy, and Quality Assurance.
Summary
Technically skilled Product Owner and IT Project Manager with many years of experience building digital products, managing international development teams and operating cloud-based platforms. As founder and managing director of apri x GmbH, I developed a multi-vendor e-commerce platform and a delivery and driver platform from the initial product idea through requirements, architecture, implementation, testing and release to daily operations. I combine business understanding, UX, e-commerce and agile product development with a strong technical understanding of software architecture, code, APIs, databases and cloud infrastructure, as well as hands-on experience with AWS, Linux, Git/Bitbucket and Atlassian.
Skills
Product & Delivery
- Product Ownership
- Roadmaps
- Backlog
- User Stories
- Prioritization
- Acceptance Criteria
- Testing
- Releases
Agile & Atlassian
- Scrum-Based Collaboration
- Jira
- Confluence
- Bitbucket
- Git Workflows
- Pull Requests
- Documentation
Project Management
- Stakeholder Management
- Developer Coordination
- Scope, Time, Quality And Budget
- Risk And Requirements Management
Cloud & Operations
- Aws Ec2
- S3
- Ses
- Rds/Mysql
- Ubuntu
- Apache
- Deployments
- Staging/Production
- Troubleshooting
E-Commerce
- Multi-Vendor Marketplaces
- Product Catalogs
- Seller And Order Flows
- Checkout
- Payments
- Delivery Integration
Technical Understanding & Software Development
- Laravel/Php
- Javascript/Typescript
- React/Vue
- Node.Js
- Rest Apis
- Mysql/Mongodb
- Html/Css
Languages
Education
Roosevelt University
Computer Science · Chicago, United States
Eberhard Karls University Tübingen
Diploma in Computer Science (major) · Computer Science, Media Studies · Tübingen, Germany · 1.9
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Sara is based in Pfullingen, Germany.
Sara speaks the following languages: German (Advanced), Tigrinya (Advanced), English (Elementary).
Sara has at least 19 years of experience. During this time, Sara has worked in at least 6 different roles and for 7 different companies. The average length of individual experience is 3 years and 8 months. Note that Sara may not have shared all experience and actually has more experience.
Based on recent experience, Sara would be well-suited for roles such as: DevOps Engineer / Digital Transformation Consultant, Founder, Managing Director & Lead Product Owner, IT Infrastructure Manager & Systems Administrator.
Sara's most recent position is DevOps Engineer / Digital Transformation Consultant at INTO Branding.
In recent years, Sara has worked for INTO Branding, apri x GmbH and formerly RoamApp GmbH.
Sara is most experienced in industries like Information Technology, Advertising, and Transportation. Sara also has some experience in Retail, Tourism, and Education.
Sara is most experienced in business areas like Information Technology, Operations, and Product Development. Sara also has some experience in Project Management, Strategy, and Quality Assurance.
Sara has recently worked in industries like Information Technology, Advertising, and Transportation.
Sara has recently worked in business areas like Information Technology, Project Management, and Strategy.
Sara holds a Master in Computer Science, Media Studies from Eberhard Karls University Tübingen.
Sara will be available full-time from September 2026.
Daily rate distribution
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
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
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 11 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Similar freelancers
Discover other experts with similar qualifications and experience
Julian H.
Chrisabel P.
Christian G.
Michael H.
Stefan R.
Andre K.
Qamar H.
Michael H.
Malte L.
Wolfgang D.
Experts recently working on similar projects
Freelancers with hands-on experience in comparable project as a DevOps Engineer / Digital Transformation Consultant
Paul W.
Yahya V.
Lothar H.
Hakan K.
Frédéric K.
Luca P.
Kenan Š.
Martin H.
Matthias K.
Marc E.
Nearby freelancers
Professionals working in or nearby Pfullingen, Germany
Volker W.
Max G.
Antonio C.
Max B.
Swetha B.
Peter H.
Thomas G.
Matthias S.
Claudia M.
Karin A.
