Senior Manager, Business Applications

Get to Know Us

Horizon3 is a fast-growing, remote cybersecurity company dedicated to the mission of enabling organizations to proactively find and fix and verify exploitable attack vectors before criminals exploit them. Our flagship product, the NodeZeroTM platform, delivers production-safe autonomous pentests and other key assessment operations that scale across the largest internal, external, cloud, and hybrid cloud environments. NodeZero has been adopted by organizations of all sizes, from small educational institutions to government agencies and Global 100 enterprises. It is used by ITOps/SecOps teams, consulting pentesters, and MSSPs and MSPs. 

We are a fusion of former U.S. Special Operations cyber operators, startup engineers, and formerly frustrated cybersecurity practitioners. We're committed to helping solve our common security problems: ineffective security tools, false positives resulting in alert fatigue, blind spots, "checkbox” security culture, cybersecurity skills shortage, and the long lead time and expense of hiring outside consultants. Collectively, we are a team of learn it alls, committed to a culture of respect, collaboration, ownership, and results.

What You’ll Do

We are seeking a Senior Manager, IT Engineering to build and lead our Business Applications (BizApps) function within IT. This is a hands-on leadership role for someone who can set direction, build a new team, and stay close enough to the work to enable every part of the business through the applications, integrations, and AI tooling that power their day-to-day operations.

This role will lead the team responsible for administering IT-deployed, company-wide applications; building and maintaining integrations — primarily through our IPaaS platform, Workato, and, where needed, custom middleware built on AWS; and designing and deploying AI agents across our AI platform stack (Glean, Claude, Gemini, and/or AWS Bedrock) to automate and enable work across GTM, Finance, Legal, Engineering, and other teams. The ideal candidate brings strong technical breadth across applications, integration architecture, and AI enablement, along with the ability to partner effectively across every department in a fast-growing organization. By strengthening our BizApps function, this role will directly enable business scalability, operational efficiency, and cross-functional productivity.

This role will be responsible for…..

• Lead, coach, and grow the Business Applications (BizApps) team, including ownership of IT-deployed application administration, integration development, and AI agent enablement

• Set priorities and operating rhythms for the team, balancing day-to-day requests, escalations, integration/AI build projects, and long-term platform improvements

• Serve as a hands-on leader for the BizApps function, stepping in on complex builds, architecture decisions, and high-priority cross-functional requests

• Own administration, configuration, and lifecycle management of applications where IT is the accountable, company-wide deploying owner (e.g., Jira, collaboration tools, and similar platforms as designated) — distinct from applications owned by other departments (e.g., HRIS owned by People Ops)

• Build and maintain governance around permissions, roles, licensing, and access models across BizApps-owned platforms, partnering with IT Engineering on any identity and access management (IAM) needs tied to SSO/IdP

• Design and implement workflows, automations, custom fields, and reporting structures within IT-owned applications (e.g., Jira) that let departments such as GTM, Finance, Legal, and Engineering self-serve where appropriate, and get expert support where they can't

• Serve as the primary owner and architect of our Workato IPaaS instance, building, testing, and maintaining recipes/connections that integrate systems across the business

• Evaluate each integration request against a clear decision framework: native integration first, Workato second, and custom AWS-based middleware only when neither can meet the requirement due to complexity, scale, or data sensitivity

• Architect, oversee, and/or build custom integrations using AWS services (Lambda, S3, RDS, API Gateway, EventBridge, Step Functions, etc.) for integrations that fall outside Workato's capabilities

• Manage relationships with third-party development contractors/vendors for custom build-outs, including scoping, technical requirements, QA, and handoff to internal support

• Design, build, and deploy AI agents, Projects, Skills, and/or Gems across our AI platform stack (Glean, Claude, Gemini, AWS Bedrock) to solve specific business problems for GTM, Finance, Legal, Engineering, and other functions

• Own the intake and evaluation process for AI agent requests, assessing feasibility, data sources, security/compliance implications, and the right platform for a given use case

• Establish guardrails, access controls, and data handling standards for agent deployments in partnership with IT Engineering and Security/Compliance, including least-privilege access and monitoring for misuse or drift

• Maintain an accurate inventory and lifecycle plan for owned applications, integrations, and deployed agents (ownership, purpose, data access, review cadence) to support audits and prevent unmanaged risk

• Partner closely with IT Engineering, Security, and Legal/Compliance to ensure application, integration, and AI enablement practices align with security requirements, access control policies, and regulatory obligations

• Create metrics, dashboards, and operational reporting that communicate BizApps performance, delivery velocity, and platform health to leadership

• Drive continuous improvement across the BizApps function, including tooling, workflows, documentation, and self-service capabilities

• Demonstrate a commitment to integrity, process improvement, and customer satisfaction

As a Manager, you will be responsible for:

• Recruiting and onboarding talented individuals to support our organizational goals

• Mentoring, coaching, equipping, and developing your team

• Recognizing and retaining high performers

• Leading horizontally with peer management and senior leaders

What You’ll Bring

• Must have strong experience in IT, business systems administration, or systems engineering, including experience leading a team

• Must have deep hands-on experience administering enterprise SaaS platforms at scale, like Jira/Atlassia, suite required; experience with collaboration tools (Google Workspace/M365) or similar company-wide IT-owned platforms strongly preferred

• Must have hands-on experience building and managing integrations on an IPaaS platform — Workato experience strongly preferred

• Must have demonstrated experience building custom integrations/middleware using AWS services (Lambda, S3, RDS, API Gateway, EventBridge, or similar) for cases beyond IPaaS capability

• Must have hands-on experience building or deploying AI agents, Projects, Skills, or Gems on at least one enterprise AI platform (Glean, Claude, Gemini, or AWS Bedrock), including connecting them to internal data sources and applications

• Must have working knowledge of APIs, webhooks, data models, and integration patterns (REST, event-driven architecture)

• Must have experience managing external contractors/vendors for custom development work, including scoping, oversight, and quality control

• Must have strong stakeholder management skills and the ability to translate business requirements from non-technical teams (Legal, Finance, GTM) into technical solutions

• Must have an understanding of access control, data security, and compliance considerations (SOC 2, ISO 27001, export control, or similar frameworks) as they relate to business applications and AI systems, along with a collaborative approach to working with IT Engineering on IAM/SSO needs

Minimum Education and Experience

• Bachelor's degree in Information Systems, Computer Science, Business, or a related field, or equivalent practical experience

• 5+ years of experience in IT, business systems administration, or systems engineering

• 2+ years of experience in a leadership/management capacity (people and/or project management)

• Experience supporting a distributed or remote-first workforce

• Prior experience managing cross-functional requests, building integrations, and driving platform adoption in a hands-on capacity

Required Tech Stack Experience

• Jira / Atlassian suite

• Workato (or similar IPaaS platform)

• AWS (Lambda, S3, RDS, API Gateway, EventBridge, Step Functions, or similar)

• AI platforms: Glean, Claude, Gemini, and/or AWS Bedrock

• Collaboration platforms (e.g., Slack, Google Workspace, Zoom)

• APIs, webhooks, and REST/event-driven integration patterns

What Sets You Apart?

• You've built or led a Business Applications, IT systems, or integration function in a fast-paced, high-growth environment and know how to scale enablement without losing quality or governance

• You're comfortable being both a people manager and a hands-on architect for complex integration and AI agent builds

• You've partnered with contractors or vendors to deliver custom middleware and know how to scope, oversee, and QA that work

• You're a trusted partner across GTM, Finance, Legal, Engineering, and People, balancing self-service enablement with operational and security rigor

• You know how to evaluate a request against native, IPaaS, and custom-build options and choose the right level of investment

• Experience deploying AI agents, Projects, Skills, or Gems for real business use cases, not just experimentation

• Relevant certifications such as Atlassian, AWS, Workato, or similar

• Experience in high-growth SaaS or cybersecurity companies

Perks of Horizon3

• Inclusive Team: We value diversity and promote an inclusive culture where everyone can thrive.

• Growth Opportunities: Be part of a dynamic and growing team with numerous career development opportunities.

• Innovative Culture: Work in a collaborative environment that encourages creativity and out-of-the-box thinking.

• Hybrid & Remote Work: We embrace a mix of remote and hybrid work models depending on role and location, including our Chicago office, where some roles require regular in-office presence.

• Competitive Compensation: We offer competitive salary, equity and benefits. Our benefits include health, vision & dental insurance for you and your family, a flexible vacation policy, and generous parental leave.

Compensation and Values

At Horizon3, we believe that our people are our greatest asset, and our compensation philosophy reflects this core value. We are committed to fostering an environment where all employees feel valued, respected, and rewarded for their contributions. Our compensation structure is designed to be fair, competitive, and transparent, ensuring that every team member is recognized and compensated equitably across roles, levels, and locations.

In accordance with various State’s transparency regulations, we provide the following salary range information for this position:

• Base salary range: $178,200 - $220,000 annually. The exact salary will be determined based on the selected candidate’s location, qualifications, experience, and relevant skills.

• Additional compensation: All full-time roles are eligible for an equity package in the form of stock options.

You Belong Here

Horizon3 is not just an equal opportunity employer - we are a community that values diversity, equity, and inclusion as fundamental principles of our culture and success. We are dedicated to fostering a workplace where everyone feels welcome and respected, regardless of race, color, religion, sex, national origin, age, disability, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, hair length or any other legally protected status by law.

Our commitment to diversity and inclusion means we strive to attract, develop, and retain a workforce that reflects the varied communities we serve. We believe that diverse perspectives drive innovation and strengthen our ability to create cutting-edge cybersecurity solutions. At Horizon3, every team member is valued and supported in an environment that encourages personal and professional growth.

We welcome candidates from all backgrounds and experiences, and we encourage all qualified individuals to apply. Come be a part of Horizon3, where your unique contributions are recognized, and your potential is limitless.

Other Duties

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee. Duties, responsibilities, and activities may change at any time with or without notice. 

Application Note

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