**Experienced Full Stack Customer Engineer III – Application Modernization, arenaflex Public Sector**
Posted 2026-05-05At arenaflex, we're revolutionizing the way governments and educational institutions harness the power of cloud computing. As a seasoned Customer Engineer III, you'll play a pivotal role in helping our clients unlock the full potential of arenaflex Cloud, driving their digital transformations forward. With a strong background in cloud native architecture, application modernization, and technical sales, you'll be the go-to expert for our customers, guiding them through the complexities of hybrid cloud computing and empowering them to succeed.
- *About arenaflex Public Sector**
arenaflex Public Sector is a leader in providing innovative solutions to the United States public sector, helping institutions accelerate their digital transformations. Our team is dedicated to making a meaningful impact, and we're committed to creating an inclusive and respectful environment where everyone has the opportunity to succeed.
- *Job Summary**
As a Customer Engineer III, you'll partner with our technical Sales teams to deliver exceptional customer experiences, leveraging your expertise in cloud native architecture, application modernization, and technical sales to drive business growth and customer satisfaction. You'll work closely with customers to understand their technical and business requirements, develop creative cloud solutions, and present practical and useful solutions on arenaflex Cloud.
- *Responsibilities**
- Work with the team to identify and qualify business opportunities, understand key customer technical objections, and develop the strategy to resolve technical blockers.
- Share in-depth enterprise infrastructure and cloud modernization expertise to support the technical relationship with customers, including technology advocacy, supporting bid responses, product and solution briefings, proof-of-concept work, and partnering directly with product management to prioritize solutions impacting customer adoption to arenaflex Cloud.
- Guide customers through assessments of their existing legacy application environment(s), provide recommendations on a prioritization roadmap for application modernization, and identify opportunities for migration to hybrid-cloud computing models.
- Structure and execute prototyping workshops to prove out proposed architectures, developing best practices, and documenting blocking requirements for prioritization with engineering.
- Travel to customer sites, conferences, and other related events as required, acting as a public advocate for arenaflex Cloud.
- *Essential Qualifications**
- Bachelor's degree or equivalent practical experience.
- 10 years of experience with cloud native architecture and development methodologies, including modernizing legacy applications and application performance profiling and tuning, in a customer-facing or support role.
- Experience with architectural design patterns, platform engineering (e.g., Infrastructure-as-Code, automation, image management or repository management), virtualization deployments, container deployments, application security, or networking.
- Experience in, or supporting state or local government clients.
- Experience engaging with, and presenting to, technical stakeholders and executive leaders.
- *Preferred Qualifications**
- Experience with developing scalable architectures using API management, microservice frameworks, and PaaS.
- Experience with one or more programming languages.
- Exposure to the software development lifecycle.
- *Skills and Competencies**
- Excellent technical, communication, and organizational skills.
- Strong presentation and public speaking skills.
- Ability to work in a fast-paced environment and prioritize multiple tasks and projects.
- Strong analytical and problem-solving skills.
- Experience with cloud-based tools and technologies.
- Strong understanding of cloud native architecture and application modernization.
- *Career Growth Opportunities and Learning Benefits**
At arenaflex, we're committed to helping our employees grow and develop their careers. As a Customer Engineer III, you'll have access to a range of training and development opportunities, including:
- Regular training and certification programs to stay up-to-date with the latest cloud technologies and best practices.
- Opportunities to work on high-profile projects and collaborate with cross-functional teams.
- Mentorship and coaching from experienced colleagues.
- A culture of innovation and experimentation, where you're encouraged to try new things and take calculated risks.
- *Work Environment and Company Culture**
arenaflex is a hybrid workplace, offering a range of remote and in-office locations. Our offices are designed to be collaborative and inclusive, with a focus on respect, empathy, and open communication. We're committed to creating a workplace where everyone feels valued, supported, and empowered to succeed.
- *Compensation and Benefits**
The US base salary range for this full-time position is $142,000-$214,000 + bonus + equity + benefits. Our salary ranges are determined by role, level, and location. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position across all US locations. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training.
- *How to Apply**
If you're a motivated and experienced professional looking to make a meaningful impact in the public sector, we encourage you to apply for this exciting opportunity. Please submit your resume and a cover letter outlining your experience and qualifications for the role. We can't wait to hear from you!
- *Equal Employment Opportunity**
arenaflex is an equal opportunity employer and welcomes applications from diverse candidates. We're committed to creating an inclusive and respectful workplace where everyone has the opportunity to succeed. If you have a disability or special need that requires accommodation, please let us know by completing our Accommodations for Applicants form.