IT Manager

Integrity Software Systems Ltd; Lincoln; Hybrid; GBP 60,000 - 90,000; Full time

Benefits offered by this job

Company pension scheme

20 days annual leave

Employee Assistance Programme

Company events

Job summary

Integrity Software Systems Ltd. is seeking an IT Manager to own and oversee the internal IT infrastructure, security, and operational systems from Lincoln.

You will ensure stability, security, and efficiency of core IT services while supporting business growth and adherence to best practices such as ISO 27001. The role requires hands-on experience with Windows Server, Active Directory, and Microsoft 365, plus security tooling, backups, and formal documentation.

Qualifications

• Experience with Windows Server, Active Directory and Microsoft 365 administration.
• Knowledge of backup, recovery, and disaster recovery principles.
• Understanding of email systems, security, and certificate management.
• Experience with IT security tools and concepts (firewalls, antivirus, vulnerability management).
• Ability to document systems and processes clearly.

Responsibilities

• Own the internal IT infrastructure, security, and operational systems.
• Ensure stability, security, and efficiency of core IT services.
• Support ISO 27001 compliance through policy and documentation.
• Lead monitoring, backups, DR testing, and incident response.

Skills

Windows Server

Active Directory

Microsoft 365

ISO 27001

Azure VPN

Security Tools

Documentation

Automation scripting

Tools

Mimecast

KnowBe4

Secret Server

SIEM

Job description

Job Title:IT Manager
Location:Hybrid (Lincoln)
Contract:Full-time, Permanent

Role Overview

We areseekingan experienced and proactive IT Manager to take ownership of our internal IT infrastructure, security, and operational systems. This roleis responsible forensuring the stability, security, and efficiency of core IT services, while supporting business growth and adherence to best practice standards, such as ISO 27001. The ideal candidate will combine strong technical capability with a security-first mindset and the ability to document, manage, and continuously improve systems.

Professional Experience & Core Competencies

Infrastructure & Systems Management

• Active Directory & Windows Server: Administer servers, user accounts, group permissions, firewalls, and performance monitoring.
• Hardware & Domain Services: Maintainon-premisehardware/servers; manage DNS updates, domain renewals, and SSL/TLS certificates.
• User Support: Supported internal IT operations, including Office applications, secure email, and VPN access.

Security, Compliance & Risk Management

• Security Administration: ManageMimecast threat logs, KnowBe4 training programs, and Secret Server credential storage.
• Network Security: Implementfirewallcontrols and email security standards (SMTP, TLS) to safeguard business data.
• Compliance & Testing: Contributeto ISO 27001 compliance (policy/documentation); review penetration testing and vulnerability scans to proactively mitigate risk.

Business Continuity,Operational Reliability

• Disaster Recovery:Monitorbackup systems, conduct regular restore testing, and support annual external audits and DR testing initiatives.
• Proactive Monitoring: Manage system uptime, antivirus/EDR, and SIEM tools to quicklyidentifyand resolve performance anomalies.
• Network Admin: Support Azure VPN connectivity and applied IP routing and subnetting fundamentals to resolve complex connectivity issues.

User & Device Management

• Lifecycle Management: Own the end-to-end Joiners/Movers/Leavers (JML) process, including provisioning and configuring user laptops.

Documentation & Process Improvement

• IT Governance:Maintainaccurateasset registers, risk tracking logs, and system configuration documentation in shared repositories.
• Continuous Improvement: Partner with stakeholders on IT projects, driving efficiency, automation, and security enhancements.

Skills & Experience

• Strong experience with Windows Server, Active Directory and Microsoft 365 administration
• Solid understanding of backup, recovery, and disaster recovery principles
• Knowledge of email systems, security, and certificate management
• Experience with IT security tools and concepts (firewalls, antivirus, vulnerability management)
• Ability to document systems and processes clearly
• Strong problem-solving and diagnostic skills
• Experience supporting ISO 27001 environments
• Familiarity with Azure services, including VPN and backups
• Exposure to monitoring tools
• Understanding of penetration testing and vulnerability scanning outputs
• Knowledge of security awareness platforms (e.g. KnowBe4)
• Familiarity with basic scripting or a willingness to develop automation skills

Personal Attributes

• Highly organised with strong attention to detail
• Security-conscious and risk-aware
• Proactive and able to work independently
• Strong communicationskills, with the ability to explain technical concepts clearly

What we offer

• Company pension scheme
• 20 days annual leave, plus Bank Holidays (increasing to 25 days, plus Bank Holidays)
• Employee Assistance Programme
• Company events

We have been providing construction software solutions to UK and Irish construction businesses for more than 40 years, and our fully-integrated construction accounting software is used by more than 1,000 leading construction businesses.