Mark Sefer
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Mark Sefer Email & Phone Number

Director of Information Technology at Sentinel Midstream
Location: Katy, Texas, United States 10 work roles 1 school
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✓ Verified Jul 2026 3 data sources Profile completeness 86%

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Current company
Role
Director of Information Technology
Location
Katy, Texas, United States
Company size

Who is Mark Sefer? Overview

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Quick answer

Mark Sefer is listed as Director of Information Technology at Sentinel Midstream, a with 13 employees, based in Katy, Texas, United States. AeroLeads shows a matched LinkedIn profile for Mark Sefer.

Mark Sefer previously worked as Vice President Information Technology at Posigen and VP of IT at Speedcast. Mark Sefer holds Bba, Mis from University Of Houston.

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Sentinel Midstream

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Profile bio

About Mark Sefer

PROFESSIONAL SUMMARY:Results-driven IT executive with over 24 years of experience in leadership roles, driving technological innovation, and optimizing IT operations on a global scale. Proven track record of managing complex projects, enhancing efficiency, and fostering cross-functional collaboration. Adept at strategic planning, team leadership, and technology implementation.INDUSTRIES: Telecommunications and Satellites | Energy, Offshore Oil & Gas | Health Insurance | Healthcare | Consulting | ISPCORE COMPETENCIES:Cloud Computing: Azure, AWS | Cybersecurity: Threat Detection, Risk Assessment, Compliance, AlienVault, Sophos, Avertium SOC, Delinea (Thycotic) | Data Analytics & BI: Power BI, Tableau, Azure Data Lake, Snowflake Data Warehouse | ERP Systems: SAP, Oracle, Dynamics | Digital Transformation: IoT, AI, RPA | DevOps & CI/CD: Agile Development, Jira, MS DevOps | Network Infrastructure: Architecture | Unified Communications: Anywhere 365, MS Teams, Video Conferencing | Project Management: Agile and Waterfall Methodologies, SCRUM, Sprint Planning | Vendor Management: Contract Negotiation, MSA, SOW, MSP | IT Governance & Compliance: Audit Readiness, ServiceNow, ITIL, GDPR | Data Privacy & GDPR: Data Protection, Compliance | Remote Work Technologies: VPNs, Remote Desktop Services | Change Management: Organizational Transitions, Team Reorgs, M&A Activities | Strategic Leadership: Alignment with Business Goals, IT Steering Committee Workshops | Budget Management: Annual Budget Planning, Monthly P&Ls, Resource Planning and Allocation | Innovation Mindset: Emerging Technologies like AI and Bots | Cross-Functional Collaboration: IT Steering and Governance, Stakeholder Engagement

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Sentinel Midstream
Sentinel Midstream
Director of Information Technology
Houston, TX, US
Employees
13
AeroLeads page
10 roles · 28 years

Mark Sefer work experience

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

Vice President Information Technology

Houston, Tx, Us

Vp Of It

Houston, Texas, United States

• Collaborated across functions to identify technology-driven innovation and operational efficiency opportunities, aligning IT with company strategy.• Implemented robust cybersecurity measures and data access controls for audit readiness, ensuring compliance with industry regulations.• Successfully navigated complex vendor relationships, negotiating contracts and ensuring SLA compliance for optimal value delivery.• Orchestrated full IT budget oversight, optimizing resource allocation for a 10% operational cost reduction while maintaining service quality.• Prepared executive-level P&L reports, highlighting IT expenses, cost savings, and the financial impact of technology initiatives.• Led cross-functional teams to enhance data synchronization, improving financial reporting accuracy and process efficiency.• Spearheaded comprehensive finance transformation, integrating FP&A, Procure-to-Pay, and ERP systems for improved efficiency.• Directed CRM system implementation, enhancing customer relations, targeted marketing, and financial forecasting.• Managed establishment of host-to-host payment gateways across regions, optimizing international transactions.• Provided strategic IT leadership for high-profile product launches, coordinating technology requirements for success.• Led migration of legacy systems to Azure cloud, enhancing scalability and reliability.

Feb 2021 - Sep 2023

It Director

Houston, Texas, United States

• Directed IT operations across the Americas, EMEA, and APAC in 40 countries, leading a team of 30+ professionals through comprehensive initiatives.• Navigated transition from public to private amidst bankruptcy, retaining employees and contributing to company resurgence post-Chapter 11.• Orchestrated consolidation of 8 legacy billing systems into a unified platform, optimizing billing precision and recovering $1.6M+ revenue.• Managed ERP team supporting finance with expertise in MS Dynamics CRM migration and end-to-end implementation.• Spearheaded Modern Data Platform using Azure Data Lake and Snowflake, fueling digital transformation and advanced analytics.• Led Power BI adoption, enabling data-driven decisions and reducing reporting time by 50%.• Oversaw migration of legacy apps to modern .NET platform, enhancing performance and scalability.• Successfully integrated IT systems post-Globecomm acquisition, minimizing disruption and enhancing processes.• Engineered IT infrastructure rebuild, boosting reliability and security through server and network upgrades.• Optimized IT infrastructure, reducing operational costs by 30% and enhancing disaster recovery capabilities.• Pioneered data center consolidation across 25+ countries, streamlining operations through Azure Site-to-Site VPN connections.

Jun 2019 - Jan 2021

It Manager

Houston, Texas Area

• Promoted to lead a team of global offshore IT technical field services team and improved service levels and overall reputation of IT.• Reengineered Global Field Services offshore support processes, and improved efficiency and service delivery times. • Managed IT teams and infrastructure projects for offshore operations, in planning, implementing, and maintaining the company's IT infrastructure, including networks, servers, and software systems.• Implemented an offshore applications and systems disaster recovery plan that reduced downtime by 50% during critical system failures.• Oversaw the management of the CSC Global Helpdesk, ensuring timely and effective resolution of technical issues for 10K+ employees.• Developed and managed the IT budget, optimizing resource allocation and ensuring cost-effective technology investments.• Implemented ServiceNow for the enterprise with ITIL best practices, resulting in improved service and process delivery and higher user satisfaction with IT services.• Spearheaded the adoption of new project management software, increasing team efficiency by 25%.• Managed vendor relationships, negotiating contracts, and ensuring service level agreements were met.

Dec 2011 - May 2019

Project Manager

Houston, Texas Area

• Consolidated four enterprise-level legacy systems into a single Global Management System and successfully deployed across the fleet.• Led cross-functional teams in executing post-merger fleet-wide offshore IT projects delivering on time and within budget.

May 2010 - Jan 2012

Sr. Applications Developer

• Participated in IT-related merger activities when Transocean acquired Global Santa Fe. • Performed applications rationalization and systems integrations across 120+ rigs globally.• Led a technical team to maintain offshore/onshore Operations Management System replicating across 65 offshore rigs at Global Santa Fe.

May 2006 - May 2010

Lead Programmer/Analyst

Heritage Health Systems

Houston, Texas, United States

• Formed a development team of 5 to deliver a brand new, highly government-regulated compliance system for Enrollment, Billing, and Member Services operations in multi-state Medicare markets.• Conducted analysis, design, and coding for software applications, contributing to process automation and efficiency improvements using Microsoft .NET and SQL technologies (IVR system for inbound/outbound calls, integration of external partners, and network of healthcare providers).

Feb 2004 - May 2006

Developer/Consultant

Houston, Texas, United States

• Collaborated with clients to gather requirements, design solutions, and manage implementation projects involving various healthcare systems (E*Gate integrations, HL7-based systems, Data Modeling and Data Warehouse for Bio-Surveillance reporting systems, Cerner Lab systems, UNIX/Windows, Oracle/SQL databases).• Provided full technical consultancy services for hospitals across the US, delivering custom software solutions tailored to their business needs (Pocket PC, Logician EMR to track patient demographics and clinical information, web-based for handheld devices to allow nurses to schedule, complete patient documentation).• Trained all hospital users on the Medibuy ERM application across multiple HCA hospitals.• Led and performed volunteer web development work for Houston Healthcare for the Homeless.

Aug 2000 - Feb 2004

Jr. Developer

Houston, Texas, United States

• Developed the company’s search engine, reports, and tools. • Provided technical support to Sr. Developers in the development of template-based web-based applications and web hosting products.

1999 - 2000 ~1 yr
Team & coworkers

Colleagues at Sentinel Midstream

Other employees you can reach at sentinelmidstream.com. View company contacts for 13 employees →

1 education record

Mark Sefer education

FAQ

Frequently asked questions about Mark Sefer

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

What company does Mark Sefer work for?

Mark Sefer works for Sentinel Midstream.

What is Mark Sefer's role at Sentinel Midstream?

Mark Sefer is listed as Director of Information Technology at Sentinel Midstream.

Where is Mark Sefer based?

Mark Sefer is based in Katy, Texas, United States while working with Sentinel Midstream.

What companies has Mark Sefer worked for?

Mark Sefer has worked for Sentinel Midstream, Posigen, Speedcast, Transocean, and Heritage Health Systems.

Who are Mark Sefer's colleagues at Sentinel Midstream?

Mark Sefer's colleagues at Sentinel Midstream include Dillon Mcelveen, Jared Ledet, Angela Holmes, Daniel Mcrea, P.E., and Dan Harris.

How can I contact Mark Sefer?

You can use AeroLeads to view verified contact signals for Mark Sefer at Sentinel Midstream, including work email, phone, and LinkedIn data when available.

What schools did Mark Sefer attend?

Mark Sefer holds Bba, Mis from University Of Houston.

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