Technical Support Engineer (Hybrid, U.S. — Denver, CO Metro)

Job Title: Technical Support Engineer
Location: Denver, CO (Hybrid)

About FusionAuth

FusionAuth is a fast-growing startup and leading provider of customer identity and access management (CIAM) software headquartered in Denver, Colorado. Our mission is to make authentication and authorization simple and secure for every developer.  Our product helps businesses securely manage customer identities and access, ensuring a seamless and safe user experience for some of the largest brands in the world. We are committed to delivering exceptional value and satisfaction to our clients through top-notch service and support.  With a great team and strong investors, we are expanding our team to help accelerate our growth and take FusionAuth to the next level.

Work Schedule

This is a full‑time, salaried‑exempt role. During the first approximately three months, while you are ramping up, you will work a standard daytime schedule (9am-5pm Mountain Time) to allow for onboarding, training, and pairing with teammates.

After you are fully ramped (expected at around three months, depending on performance and business needs), your regular schedule will shift to 7:00 a.m. – 3:00 p.m. (MT), Monday through Friday. Occasional on-call support will be required outside of regular hours, on a rotating basis with the team. While this represents your standard schedule, occasional flexibility may be required to meet customer or business needs (for example, during incidents, releases, or key customer engagements). Any adjustments to your regular schedule will be communicated in advance whenever reasonably possible.

Job Summary

We are recruiting a Technical Support Engineer who will join our engineering team and help us deliver excellent software support to our growing number of clients. In this role, you will understand our customers’ needs and help guide them through the issues they are having.

For this role, you must be a creative and quantitative thinker, and be able to quickly grasp complex, technical subjects. Our users are generally developers, and their support questions tend to be sophisticated. A successful candidate will often be able to respond to a customer’s questions by independently reading through code to find an answer, or stand up a test integration with a 3rd party system to try and reproduce an issue. CIAM can get complicated, and this role often feels more like solutions engineering than it does support.

Responsibilities

• Provide technical support to customers integrating FusionAuth into their applications, troubleshooting authentication, authorization, and identity workflows
• Triage, reproduce, and document customer-reported issues; create detailed bug tickets for engineering handoff
• Guide customers through complex CIAM configurations, including SSO setup, MFA implementation, and custom token handling
• Conduct root cause analysis on integration failures by reviewing customer code snippets, logs, and API traces
• Maintain and contribute to FusionAuth’s technical documentation, knowledge base articles, and troubleshooting guides based on real-world cases
• Collaborate in customer kickoff and optimization sessions to proactively identify support needs
• Participate in rotating on-call duties to handle production incidents, minimize downtime, and communicate resolutions

Qualifications

• 4+ years in technical support and/or software engineering roles
• Outstanding ability to help customers work through issues, and to understand complicated topics and solutions
• Understand and can execute RESTful API calls
• Able to quickly grasp and explain complex technical subjects
• Excellent technical communication skills
• Can multitask effectively across many customer conversations
• Experience reviewing and interpreting code
• Java experience is a plus
• IAM or CIAM experience is a big plus
• Experience working with developers as customers

All About You

• You love supporting customers in their success
• You aren't afraid of getting into some code
• You really enjoy working with others
• You love working in a fast-paced environment

Compensation

• $80k-$100k expected base salary range*

Employee Perks & Campus Benefits

When you join FusionAuth’s Denver team, you’ll enjoy a modern campus experience designed for productivity, wellness, and community:

• Newly upgraded amenity spaces including a sleek tenant lounge and café with booth seating and collaborative workspaces.
• Access to a fitness studio, showers, lockers, and secure bike storage.
• Regularly stocked in-suite kitchen with a variety of snacks and beverages to keep you fueled throughout the day.
• Onsite café offering chef-driven menus with fresh, locally sourced, organic, and non-GMO options to suit diverse dietary needs. Easy ordering via app.
• 3-acres of green space, including communal parks and picnic areas, connected to miles of jogging, biking, and recreation trails.
• Yoga in the circle and wellness programs to enhance work-life balance.
• Dedicated outdoor workspaces and patio gathering areas.
• Ample on-site parking, easy freeway access, and high-speed fiber internet.
• Sustainability-minded campus and community initiatives, including support for regenerative agriculture programs.

Enjoy a high-tech business environment that inspires creativity and energizes your workday—all just minutes from the heart of Denver and Boulder.

If you are passionate about technology that solves real-world customer problems, and want to join a company that is moving the industry forward, FusionAuth is a perfect fit for you!

Equal Employment Opportunity
FusionAuth provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.
E-Verify | Right to Work

Recruiters
FusionAuth does not accept unsolicited resumes from recruiters or employment agencies. In the absence of a signed agreement, we reserve the right to pursue and hire candidates without any financial obligation to the recruiter or agency. Any unsolicited resumes, including those submitted directly to hiring managers, are deemed to be the property of FusionAuth.