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John Mcmahon Email & Phone Number

Finance Manager, FP and A at Siren
Location: Galway, County Galway, Ireland 5 work roles 2 schools
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✓ Verified August 2026 3 data sources Profile completeness 86%

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Current company
Siren
Role
Finance Manager, FP and A
Location
Galway, County Galway, Ireland
Company size
77 employees

Who is John Mcmahon? Overview

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Quick answer

John Mcmahon is listed as Finance Manager, FP and A at Siren, a with 77 employees, based in Galway, County Galway, Ireland. AeroLeads shows a matched LinkedIn profile for John Mcmahon.

John Mcmahon previously worked as Finance Manager, FP&A at Siren and Senior Financial and Technical Specialist at Laval Fitted Furniture Ltd. John Mcmahon holds Bachelor Of Science - Bs, Accounting And Finance from Villanova University.

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Siren

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Profile bio

About John Mcmahon

As a finance professional for over 20 years, I have a broad acumen of experience in financial management, cost and performance analysis, business processes and SAP implementation roles. My experiences have spanned numerous industries including major oil & gas, quasi-governmental, United Nations, manufacturing, construction, brokerage and logistical operations. I am qualified by experience in the areas of Financial Planning and Analysis; Budgetary Control; Cost Accounting; Variance and Performance Reporting; instituting best practices with regard to internal accounting control process, closure procedures and audit compliance. In addition, I am highly proficient in SAP, and was certified in FI/CO module.My core competencies include excellent communication skills, leadership, ability to implement strategies, deeply analytical mind, business partnering and cross functional collaboration, building relationships, resolving issues and negotiating disputes with a mature and balanced approach.

Current workplace

John Mcmahon's current company

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Siren
Siren
Finance Manager, FP and A
County Galway, Ireland
Website
siren.io
Employees
77
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5 roles · 36 years

John Mcmahon work experience

A career timeline built from the work history available for this profile.

Finance Manager, Fp And A

Siren

County Galway, Ireland

Finance Manager, Fp&A

Current
Siren

Galway, County Galway, Ireland

Manage the financial forecasting, prepare the annual budget, analyze cost and revenue across the group and prepare monthly reporting. Business partnering with sales and production. Responsible for revenue recognition (IFRS15).

Sep 2023 - Present

Senior Financial And Technical Specialist

Laval Fitted Furniture Ltd

County Galway, Ireland

Responsible for managerial / statutory financial reporting- P&L, AP, AR, VAT, REV, variances and cash flow. Supported and improved integration of design & manufacturing process.

Apr 2020 - Sep 2023

Budget & Cost Controller / Senior Business Analyst

Qatar Petroleum

Qatar

Responsible for budgetary allocations for operational and Capex commitments. Analyzed financial performance, cash flow & forecast, recommending actions to meet or exceed targets. Consolidated and prepared 5 year strategic plan ensuring alignment with objectives. Drove the implementation of a new Performance Management system in operations.

Feb 2010 - Dec 2019

Regional Finance Officer

World Food Programme

Italy; South Africa; Uganda; Somalia

Responsible for financial oversight of projects in 12 Southern African countries. Implemented internal controls of treasury; payables; receivables; payroll and fixed assets. Certifying officer for project / operational payments to contractors and suppliers. Functional analyst in a full-life cycle SAP implementation and roll-out, ensuring end-to-end business solution and integration.

1991 - 2007 ~16 yrs
Team & coworkers

Colleagues at Siren

Other employees you can reach at siren.io. View company contacts for 77 employees →

AR Alisa Rodrigues Alisa Rodrigues Colleague at SirenGalway, County Galway, Ireland View → PM Pamela Myers Pamela Myers Colleague at SirenCork, County Cork, Ireland View → NC Niamh Connaghan Niamh Connaghan Colleague at SirenGalway, County Galway, Ireland View → MC Matteo Catena Matteo Catena Colleague at SirenItaly View → BD Bozhena Demus Bozhena Demus Colleague at SirenWexford, County Wexford, Ireland View → SD Szymon Danielczyk Szymon Danielczyk Colleague at SirenGalway, County Galway, Ireland View → SC Stéphane Campinas Stéphane Campinas Colleague at SirenBerlin, Germany View → FP Flavio Pompermaier Flavio Pompermaier Colleague at SirenTrento, Trentino-Alto Adige, Italy View → FT Fabio Tacchelli Fabio Tacchelli Colleague at SirenTrento, Trentino-Alto Adige, Italy View → 刘 刘丽娜 刘丽娜 Colleague at SirenXiamen, Fujian, China View →
2 education records

John Mcmahon education

Bachelor Of Science - Bs, Accounting And Finance

Villanova University

Activities and Societies: The Wildcat (mascot'80)

FAQ

Frequently asked questions about John Mcmahon

Quick answers generated from the profile data available on this page.

What company does John Mcmahon work for?

John Mcmahon works for Siren.

What is John Mcmahon's role at Siren?

John Mcmahon is listed as Finance Manager, FP and A at Siren.

Where is John Mcmahon based?

John Mcmahon is based in Galway, County Galway, Ireland while working with Siren.

What companies has John Mcmahon worked for?

John Mcmahon has worked for Siren, Laval Fitted Furniture Ltd, Qatar Petroleum, and World Food Programme.

Who are John Mcmahon's colleagues at Siren?

John Mcmahon's colleagues at Siren include Alisa Rodrigues, Pamela Myers, Niamh Connaghan, Matteo Catena, and Bozhena Demus.

How can I contact John Mcmahon?

You can use AeroLeads to view verified contact signals for John Mcmahon at Siren, including work email, phone, and LinkedIn data when available.

What schools did John Mcmahon attend?

John Mcmahon holds Bachelor Of Science - Bs, Accounting And Finance from Villanova University.

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