Mars M Arrey
Milton Keynes,Buckinghamshire
Summary
Accomplished Agile leader with extensive expertise in Agile Leadership, Stakeholder Management, and Agile Project and Program Delivery. Proven track record in team building, training, and implementing Agile frameworks such as SAFe, Nexus, Scrum, and Kanban. Adept at leveraging Cloud technologies, DevOps practices, AWS, to drive successful project outcomes. Skilled in developing Statements of Work (SoWs), financial projections, and strategic planning. Recognised for exceptional problem-solving abilities, calmness under pressure, and effective communication skills. Committed to fostering team building and delivering high-quality results through resourcefulness and innovative programme development.
Possesses a global perspective with experience across Asia, Africa, and Europe, bridging the gap between business and technical teams for seamless execution and value delivery.
Overview
10
10
years of professional experience
7
7
years of post-secondary education
Work history
Agile Coaching & Professional Mentorship
Consulting & Advisory
London, UK
2024.09 - 2025.04
- Consulting for Startups & GovTech on Agile Delivery Improvements
- Applied critical thinking to analyse problems, evaluate solutions and select best decisions.
Agile Coach & Product Operations Manager
Kaluza
London
2023.08 - 2024.09
- Company Overview: Energy Tech
- Led process optimization, dependency management, and cross-squad planning
- Drove adoption of flow metrics to support strategic decision-making
- Managed cost-saving project delivery (Orex decommissioning)
- Addressed and coordinated initiatives for resolving 'unbilled accounts' issues
- Delivered Agile & Leadership workshops for product and engineering teams
- Energy Tech
Lead Agile Delivery Manager
Opencast Software
London
2022.05 - 2023.06
- Company Overview: Consultant at HMRC – MTD for Business
- Led Income Tax Sub-Domain delivery, optimizing flow for HMRC and partners (Opencast & Atos)
- Provided Agile solutions, fostering knowledge-sharing across delivery groups
- Managed SoW changes, financial projections, training, and coaching
- Oversaw Agile ceremonies across six teams at the program level
- Consultant at HMRC – MTD for Business
Agile Transformation & Project Delivery
Deloitte Digital Financial Advisory
London
2021.06 - 2022.05
- Managed KYC technology projects (Flow Engine for VAT registration, CEA Risk Assessment)
- Designed Agile team structures across DFA offerings, collaborating with offshore teams
- Implemented Scrum frameworks, coaching teams and leadership for Agile adoption
Agile Transformation & Delivery Lead
Jagex
Cambridge
2019.06 - 2021.06
- Company Overview: Game Technology
- Managed Nexus delivery for game publishing platforms across UK and Russia
- Led Agile-HR initiative to integrate Agile practices in HR & corporate finance
- Delivered Agile training and psychological safety initiatives to foster leadership
- Game Technology
Agile Project & Delivery Manager
SSG
London
2017.12 - 2019.02
- Company Overview: Start-up
- Designed the SSG Consultant 'Workforce Speed Program' for Agile finance operations
- Conducted scaled Agile workshops and DevOps training
- Start-up
Agile Project & Delivery Manager
DWP
Stockport
2017.04 - 2017.12
- Company Overview: Digital Platform
- Developed Agile delivery models for API gateway and microservices projects
- Managed development teams and facilitated Agile ceremonies
- Digital Platform
Agile Project Manager
Misys
London
2015.01 - 2017.01
- Company Overview: Fusion Banking
- Fusion Banking
Software Delivery Manager
Wonga
London
2015.01 - 2017.01
- Company Overview: Loans & Financial Services
- Loans & Financial Services
Education
Bachelor of Science - Information Systems Engineering
Multimedia University
Malaysia 2004.09 - 2008.09
MSc - Computer Science
Staffordshire University
Stafford, Staffordshire 2010.01 - 2012.09
Skills
- Agile Leadership
- Stakeholder Management
- Agile Project Delivery
- Agile Program Delivery
- Team Coaching
- Agile Frameworks
- SAFe, Nexus, Scrum, Kanban
- Team building
- Public speaking
- Strategic planning
- Leadership
- Programme development
- Google Workspace
- Communication skills
- Problem-solving
Accomplishments
o Member of the British Computer Society (MBCS)
o Published article on supply chain management systems (IEEE)
o Experienced public speaker and Agile content creator on meetups
o Lead MMU Road Safety Campaign (Organising Division)
o Entrepreneurial Week - Public Relation and Sponsorship Division)
o Agile content creator & public speaker at industry events
o Former British Army & United Nations Operations Specialist (Communications & Logistics)
References
References available upon request.
Timeline
Agile Coaching & Professional Mentorship
Consulting & Advisory
2024.09 - 2025.04
Agile Coach & Product Operations Manager
Kaluza
2023.08 - 2024.09
Lead Agile Delivery Manager
Opencast Software
2022.05 - 2023.06
Agile Transformation & Project Delivery
Deloitte Digital Financial Advisory
2021.06 - 2022.05
Agile Transformation & Delivery Lead
Jagex
2019.06 - 2021.06
Agile Project & Delivery Manager
SSG
2017.12 - 2019.02
Agile Project & Delivery Manager
DWP
2017.04 - 2017.12
Agile Project Manager
Misys
2015.01 - 2017.01
Software Delivery Manager
Wonga
2015.01 - 2017.01
MSc - Computer Science
Staffordshire University
2010.01 - 2012.09
Bachelor of Science - Information Systems Engineering
Multimedia University
2004.09 - 2008.09