The Presales Senior Engineer is a senior technical presales leader responsible for owning complex sales engagements, shaping solution strategy, and guiding the development of high-quality proposals, estimates, and statements of work. This role partners with sales, delivery, and presales architects to align customer requirements with C3’s service portfolio and Reference Architecture standards while reducing risk and improving solution quality. C3 Integrated Solutions works with U.S. federal and defense contractors, many of whom are small and mid-sized businesses in aerospace, manufacturing, or technology, to implement and manage IT systems and security controls that support CMMC Level 2 compliance requirements. The role must be able to position and scope solutions aligned to C3’s Reference Architecture, including core workloads such as Microsoft 365, Azure, identity and access management, endpoint management, security operations, backup, and compliance-driven managed services. The Presales Senior Engineer plays a critical role in leading strategic opportunities, supporting standardization across the presales function, and mentoring other presales engineers. What You'll Do: Scoping * Lead scoping for complex or strategic opportunities, including discovery, risk identification, solution fit analysis, and definition of delivery assumptions. * Own the development and review of custom statements of work, change orders, estimates, and technical proposals for high-visibility opportunities. * Provide technical leadership for pricing inputs related to licensing, cloud infrastructure, security services, and professional services labor. * Establish and refine repeatable presales assets, templates, and scoping practices that improve consistency and quality across the team. Technical Solutioning and Presentation * Serve as a senior technical advisor on C3 solutions, including Microsoft 365, Azure, Entra ID, endpoint management, security platforms, managed services, backup, and compliance-aligned architectures. * Maintain strong working knowledge of C3’s Reference Architecture and its supporting partner services, including secure access, endpoint security, allowlisting, backup, remote monitoring and management, and governance or compliance tooling. * Maintain expertise in compliance-driven solution requirements for regulated environments, including customer needs tied to federal and defense sector expectations such as CMMC, NIST, and Controlled Unclassified Information (CUI) handling requirements. * Act as a point of escalation for complex technical questions, custom opportunity structures, solution exceptions, and cross-workload dependencies during the presales cycle. * Mentor and support less experienced presales engineers through deal coaching, knowledge sharing, asset development, and continuous improvement of team standards. Knowledge & Expereince * Deep experience with cloud, security, infrastructure, and compliance-oriented solution design in customer-facing technical roles. * Strong ability to independently structure and document solutions, assumptions, dependencies, and delivery considerations in proposals and statements of work. * Demonstrated ability to influence deal strategy, partner cross-functionally, and balance technical accuracy with business What You'll Bring: You are a trusted technical leader who can navigate ambiguity, guide complex customer conversations, and shape practical solutions that balance business goals, delivery realities, and compliance requirements. You communicate with confidence, coach others effectively, and bring a disciplined approach to presales quality, documentation, and cross-functional collaboration. * 8+ years of progressive experience in presales engineering, solutions engineering, consulting, or related technical customer-facing roles. * Proven experience leading complex technical sales motions involving discovery, architecture, pricing inputs, statements of work, and services scoping. * Strong communication and presentation skills, including the ability to engage technical teams, business stakeholders, and executive audiences. * Hands-on knowledge of Microsoft 365, Azure, Entra ID, Intune, security and compliance controls, and modern endpoint management concepts. * Ability to map customer requirements to C3’s Reference Architecture and identify when standard offerings, partner services, or custom solution elements are appropriate. * Experience documenting assumptions, dependencies, exclusions, risks, and delivery considerations in proposals and statements of work. * Strong understanding of regulated customer environments and the ability to discuss technical implications of frameworks such as CMMC and NIST with confidence and accuracy. Desired Characteristics * Relevant Microsoft, Azure, security, compliance, or partner-platform certifications. * Experience with Azure Government, Microsoft 365 GCC High, or similarly regulated cloud environments. * Experience scoping or positioning managed services and partner-delivered capabilities such as secure access, endpoint protection, backup, RMM, or governance tooling. * Experience mentoring peers, improving presales processes, and contributing to reusable assets, standards, and team enablement. * Bachelor’s degree in IT, Computer Science, Engineering, or a related field, or equivalent practical experience. What You'll Get: * To be a part of one of the fastest-growing companies in America, and a talented team to back you up. * An awesome culture, backed up by winning several Best Places to Work awards. * Remote work opportunities * Medical, Dental, Vision Insurance * Four Weeks of Paid Time Off (vacation & sick leave) * Four weeks of Paid Maternity and Paternity leave * Two days of Paid Volunteer Time * 401(k) with 4% Company Match * Company Bonus Structure * Tuition Reimbursement * Employer-sponsored Disability & Life Insurance * Professional Development This a remote position with minimal travel. C3's Core Values: * Team Human: Respecting all humans is a critical part of who we are at C3. We practice integrity in all interactions, we empathize with others, we create a supportive work environment, and we support the communities in which we live and operate. * Security First: At the cornerstone of our business, we prioritize security above convenience, cost or efficiency. A “security-first” approach means we practice what we preach and we lead by example for our clients. * Be an Advocate: We are passionate in our advocacy for our customer’s success and a path to the best solution for their business. We embrace feedback, put ourselves in your shoes and advocate for your interests as our own. * Embrace Change: It's a practical necessity in an industry that never stands still. As a new entity born from the merger of two top-ranked CMMC-focused IT services companies, we're keenly aware that our success hinges on our ability to adapt - whether that means integrating new platforms, refining processes, or keeping pace with changing guidelines. * Resilience: Our ability to withstand adversity and accomplish objectives while maintaining professionalism and discipline is critical to successful crisis management and risk avoidance.