Customer Success Engineer TS/SCI

We are seeking a Customer Success Engineer with a strong background in systems engineering and computer science to lead client onboarding and ensure seamless integration of technical solutions. This role is vital to translating complex technical requirements into actionable onboarding plans while maintaining a customer-first mindset. The ideal candidate will combine technical expertise with excellent communication skills to serve as a key liaison between internal engineering teams and client stakeholders, driving successful adoption and long-term satisfaction.

Responsibilities:

• Lead and manage the technical onboarding of new clients, ensuring system requirements and integration steps are clearly defined and met

• Analyze client infrastructure and workflows to tailor onboarding solutions that align with engineering capabilities

• Translate complex technical specifications into clear, actionable plans for engineering and software development teams

• Collaborate with systems engineers, developers, and program managers to deliver onboarding milestones on time and within scope

• Provide training, documentation, and technical support to ensure client readiness and satisfaction

• Serve as the communication bridge between clients and internal teams, identifying pain points and ensuring rapid resolution

• Support post-onboarding check-ins and transitions into long-term support or operational phases

• Continuously improve onboarding processes based on client feedback and technical lessons learned

Must Have's:

• Bachelor’s degree in Systems Engineering, Computer Science, or a related technical field (or equivalent experience)

• Minimum of seven (7) years of relevant experience

• Demonstrated experience in systems engineering for enterprise IT, cloud, or software-based solutions

• Hands-on experience in software development or technical environments

• Exceptional interpersonal, verbal, and written communication skills

• Strong organizational skills with the ability to manage multiple onboarding engagements simultaneously

• Ability to communicate technical details clearly to both technical and non-technical audiences

• Experience working with government or federal clients

• IAT Level II certification (Security+ or equivalent)

Nice to Have's:

• Experience with Agile methodologies and technical project management

• Familiarity with onboarding tools, client portals, or DevOps environments

• Understanding of security, compliance, or data management requirements in federal systems

Location
Reston, VA

Salary
$150,000 - $180,000 per year

Benefits
Competitive benefits package available (details provided during the interview process)

Mission Box Technologies is an Equal Opportunity Employer. We value the benefits of diversity in our workforce. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity and expression, national origin, disability, protected Veteran status, or any other attribute or protected characteristic by law. Applicants selected may be subject to a government security investigation and must meet eligibility requirements for potential access to classified information. Accordingly, US Citizenship is required. Our strategic partner is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The statements herein are intended to describe the general nature and level of work being performed by employees and are not to be construed as an exhaustive list of responsibilities, duties, and skills required of personnel so classified. Furthermore, they do not establish a contract of employment and are subject to change at the discretion of our strategic partner.