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Sebastian SheehanSS
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Sebastian Sheehan

@sebastiansheehan

SaaS implementation consultant at Medius, taking finance teams from approval requirements to tested, automated workflows and go-live.

Poland
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At Medius, I own concurrent customer implementations from kickoff to go-live, serving as the primary point of contact for international finance teams. I translate approval rules and business requirements into platform configuration, then lead solution design, testing, and UAT.

For Skedda, AllBooked, and Envoy projects, I scoped and rolled out booking, access, and visitor-management platforms for operators in Europe and Saudi Arabia. I also built Zapier integrations with clients’ existing tools to eliminate repetitive manual data entry.

Earlier, at Hive 25 (Office Park), I delivered 15% revenue growth by renegotiating renewals across 200+ B2B tenant accounts. At AXA XL, I retained 98% of 125+ Benelux accounts and built Excel-based automation tools that reduced manual processing time by 30%.

Experience

Work history, roles, and key accomplishments

Skedda logoSK

Implementation Consultant

Jun 2025 - Aug 2026 (1 year 2 months)

Scoped, configured, and rolled out booking, access, and visitor-management platforms for operators in Europe and Saudi Arabia. Designed and built Zapier integrations with clients' existing tools and documented configurations.

HI

Assistant General Manager, Client Success & Operations

Hive 25

Jan 2024 - Jul 2025 (1 year 6 months)

Delivered 15% revenue growth by renegotiating renewals across 200+ B2B tenant accounts, extending lease terms from 12 to 18 months. Improved service levels to 90%+ of client requests resolved within 24 hours across a multi-site portfolio.

AXA XL logoAX

Analyst, B2B Client Accounts

AXA XL

Aug 2022 - Dec 2023 (1 year 4 months)

Retained 98% of 125+ Benelux B2B accounts, including Lidl, Aldi, and Aon, through structured account management. Reduced manual processing time by 30% by building Excel-based automation tools.

Jack & Jones logoJJ

Sales Representative

Jack & Jones

Oct 2021 - Feb 2022 (4 months)

Sales representative role at Jack & Jones.

Mukuru logoMU

Operations Analyst

Jan 2020 - Sep 2021 (1 year 8 months)

Reduced waiting times by 10% for 250,000 customers after analysing queue data across 300 locations and redesigning queue management.

Education

Degrees, certifications, and relevant coursework

University of Applied Sciences Utrecht logoUU

University of Applied Sciences Utrecht

Bachelor of Business Administration, International Business

Bachelor of Business Administration in International Business with a focus on Entrepreneurship and Management, completed in 2021.

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