Mariusz Potocki, Project Manager in Poznań, Poland
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Mariusz Potocki

Verified Expert  in Project Management

Project Manager

Poznań, Poland
Toptal Member Since
May 4, 2020

A certified project manager, Mariusz has been successfully managing projects in both start-up and corporate environments for the past seven years. He is passionate about bringing the efficiency of lean and agile to corporate clients, and empowers teams to reach their full potential while delivering top value. Mariusz is an exceptional leader who enjoys navigating both technical and cross-functional teams and creating solutions that save costs while increasing performance.

Work Experience

Senior Product Manager

2021 - PRESENT
Qenta Inc.
  • Joined the team as a product manager, facilitating a relaunch to double the user base.
  • Reworked the registration process and optimized the buying funnel, improving unit economics.
  • Delivered a 3rd-party integration, enabling cash-in and cash-out in physical retail locations.
  • Managed the day-to-day software delivery process, reporting under the CTO.
  • Created and led a product team of four people to work across products and software delivery.

Senior Agile Project Manager

2020 - PRESENT
  • Scored the highest marks from one of the company's largest clients while working in a proxy product owner capacity, which led to direct employment as a product manager starting in 2021.
  • Spearheaded a successful transition from an in-house to an offshore engineering team at one of the largest accounts at the company.
  • Served as a proxy product owner to manage and deliver an MVP for a healthcare startup, which helped it land major clients from the pharmaceutical and cosmetics industries.
  • Mentored other project managers and introduced new processes for project control and agile planning.
  • Served as a proxy product owner to develop a fintech product. Introduced new features that improved unit economics by reducing the user onboarding cost.

Agile Project Manager

2019 - 2020
  • Refined the internal project management processes, enabling greater clarity, and a standardized approach throughout delivery during my first weeks at 10Clouds.
  • Managed half a dozen projects during the first months, including one of the largest accounts at the company. Finalized all projects with top marks from both clients and developers alike.
  • Introduced a new process for sharing lessons learned within the company, reinforcing continuous learning as one of the foundations for improvement.
  • Transitioned from project manager to proxy product owner in many of the projects, taking advantage of product management experience. Participated and facilitated discovery workshops in various industries from fintech to healthcare.
  • Promoted to senior agile project manager after six months based on my performance as a project manager, expertise in agile coaching, and product management.

IT Project Manager, Acting PM Team Lead

2018 - 2019
  • Handed the reigns for the largest IT project in the Mousquetaires Group history in Poland, creating a complex RFP for a major ERP system purchase.
  • Led a company-wide Agile transformation in IT and marketing. Transitioned teams to an Agile mindset and reduced time-to-delivery to less than three months. Introduced scrum master training and new project management tools such as Jira.
  • Aided the professional development of other project managers and business analysts at the company, which resulted in the transition to an acting team lead role.

IT Project Manager

2013 - 2018
Intermarché Poland
  • Selected as one of the leaders of a company-wide initiative, responsible for changes to the IT systems and the successful delivery of a new IT strategy for one of the 30 largest companies in Poland.
  • Modernized the store purchasing process by introducing custom software that enabled real-time ordering for ultra-fresh products (fruits and vegetables).
  • Transitioned the purchasing and trade marketing departments to a digitalized workflow for promotion management, reducing the need for manual work, paper documentation, and enabling new ways to analyze data.
  • Joined the team as a project specialist and transitioned to an IT project manager role. Successfully delivered an innovative efficiency scoring solution for retail locations based on mobile-enabled store audits and revenue analysis.
  • Led the initiative to transition many of the core transactional systems into the cloud, migrating solutions to AWS and Azure, which saved costs while increasing availability and performance.

G-coin Wallet

Refined the agile development process for a globally distributed team.

Managed a team of seven software and QA engineers across three time zones to help deliver frequent updates to the mobile application and the multiple back-end services (Java and Python) on AWS. Facilitated Kanban and a combination of synchronous and asynchronous communication methods across the team.

Intermarche Retail Loyalty Application

Launched one of the most well-received retail FMCG applications in Poland and managed it throughout its two years of releases. Met internal targets for user engagement and customer acquisition.

Worked with internal stakeholders (marketing, purchasing, brand) and managed external suppliers and freelance engineers to deliver a personalized loyalty solution for the customers of one of the biggest retailers in Poland.

Internal Purchasing Application for Retail Stores

Launched the MVP within two months and onboarded over 230 locations within the first two years of operations

Involved in the project as a project manager and proxy product owner. I managed a team of software engineers and IT support staff. The project was RoR internal application, which allowed stores to order fresh vegetables, discounted products, and promotional offers from the HQ.

IT Strategy for Intermarche and Bricomarche Poland

Managed an end-to-end IT audit for one of the largest retailers in Poland and developed an IT strategy, which was then confirmed by the board of directors.

Managed external consultants, team leaders from purchasing, marketing, legal, and logistics departments to align the company IT strategy with business goals. Delivered a comprehensive report with recommendations, which were accepted by the IT department and the board of directors in Poland and France.

RFP for ERP System Intermarche/Bricomarche Poland

Served as a project and program manager and helped launch one of the biggest retail RFPs in Poland for the purchase of an ERP and retail system (HQ and retail locations).

I managed a team of over 20 team leads, managers, and heads to deliver a comprehensive list of requirements for the HQ and retail locations, gather market information, organize the RFP, and perform a system selection.


Launched the MVP for the Datacapt clinical trial software.

Managed a team of five engineers, product designers, and QA. I organized the requirements into a comprehensive product backlog and a roadmap. I took full responsibility for the delivery over the course of 12 months.
2016 - 2017

Postgraduate Degree in Business Intelligence

Warsaw School of Economics - Warsaw, Poland

2006 - 2012

Master's Degree in Management

Poznan University of Economics - Poznan, Poland


Professional Scrum Product Owner I (PSPO I)


PRINCE2® Practitioner






COBIT®5 Foundation



Google Docs, Confluence, Slack, Jira, Project Management & Work Tracking Tools, Miro, Zoom, Microsoft Excel, Microsoft Project, Trello


MacOS, Android, iOS, Blockchain


Management, Requirements Analysis, Agile Project Management, Agile Product Management, Agile, Waterfall Delivery, PRINCE2, Agile Leadership, Scrum, B2C, Web Architecture, DevOps, Kanban, COBIT, Agile Delivery

Industry Expertise

FMCG, Consumer Products, Postal Delivery


IT Projects, Project Management, Certified Project Manager, Project Planning, Agile Sprints, Sprint Planning, Sprints, Sprint Master, Project Estimation, Scope, Budgeting, IT Program Management, Budget Management, Procurement, Software Development Management, Software Development, Product Development Manager, Feature Analysis, Coaching, Leadership, Estimation & Planning, Remote Team Leadership, IT Project Management, Communication, Backlog Grooming, Project Coordination, Cross-functional Team Leadership, Scope Management, Project Consultancy, Planning, Organization, Discovery, Web Platforms, Startups, Requirements, Program Management, Enterprise, Presentations, Software Development Lifecycle (SDLC), Technology Strategy & Architecture, Technology Solutions, Product Roadmaps, Product Analytics, Product Ownership, Project Management Operations, Milestones, Waterfall Methodology, Vendors & Suppliers, Roadmaps, Facilitation, Jira Administrator, Product Owner, Web, Mobile Apps, Team Leadership, IT, Risk Management, Scrum Master, Professional Scrum Product Owner (PSPO), Request for Proposal (RFP), Fintech, Legacy Software, Sprint Ceremonies, Hybrid Project Management, Agency, Consulting, Business to Consumer (B2C), Mobile, Discovery Workshops, Native Mobile Apps, Stakeholder Management, Business Analysis, Agile Coaching, Technical Project Management, Quality Assurance (QA), Web Technologies, Security, CTO, Strategy, eCommerce, Estimations, Resource Allocation, Technical Leadership, Technical Program Management, Web Application Architecture, Technical Product Management, IT Strategy, Systems, Key Performance Indicators (KPIs), Product Design, Product Launch, Product Vision, Critical Path Analysis, Design Sprints, Backlog Management, Requirements & Specifications, Staffing, User Stories, ITIL, Product Management, Delivery, Business Process Improvement (BPI), Large-scale Projects, Process Optimization, Workflow, Regulated Entities, Online Payments, Process Improvement Project Management, Advisory, Process Analysis, Jira Administration, Atlassian Plugins, Minimum Viable Product (MVP), Marketing, Projects, Conflict Resolution

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