Senior Java Engineer - Cloud Platform (Hybrid, Denver Metro Area)

FusionAuth; Denver (CO); Hybrid; USD 170,000 - 200,000; Full time

Benefits offered by this job

Onsite café

Parking (on-site)

Wellness programs

Bike storage

Job summary

FusionAuth Senior Java Engineer is a pivotal role focusing on the cloud platform. You will write secure, high-performance Java, integrate with AWS/Kubernetes, and contribute to architectural decisions while delivering reliable features for a growing CIAM platform.

The role requires deep ops mindset, strong testing, and collaboration across teams. Hybrid Denver office visits 2–3 times weekly, with a comprehensive benefits package and on-site perks.

Qualifications

• 10+ years of software development experience.
• Experience with heavy ops or platform engineering.
• Proficient in Java and OO design.
• Hands-on AWS experience.
• Linux platform engineering background.
• Experience architecting topologies on Kubernetes.
• Terraform experience.
• High-availability, high-performance apps.
• Comfort with AI tooling in development workflow.
• Located in Denver metro, able to visit Westminster office 2–3x/week.

Responsibilities

• Write high-quality, performant, secure Java code.
• Translate complex concepts into practical solutions.
• Balance near-term deliverables with long-term architecture.
• Write extensive tests and documentation for new features.
• Extend cloud offering with security, scalability, control plane features.
• Maintain and extend FusionAuth Terraform provider.
• Support other engineers with cloud/platform expertise.
• Be voice of positive change in Engineering.

Skills

Java

AWS

Kubernetes

Linux

Security

Cloud Platform

AI tools

Golang

Tools

Terraform

Job description

Job Title: Senior Java Engineer - Cloud Platform

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.

Job Summary

We are recruiting a Senior Software Engineer who will join our engineering team to help us achieve these goals. This exciting role will allow you to build new features and extend and influence our existing product offering. While you'll be expected to contribute in all areas of the product, this role will have a strong emphasis on working on the FusionAuth cloud platform. For this role, you must be a creative and quantitative thinker. You should be interested in the authentication, authorization and user management space. You should be seasoned at writing secure and high-performance code. The ideal candidate will be a self-starter, fast worker and excited about growing a company from the ground up. This position reports to the Head of our Platform Engineering Team.

Responsibilities

• Writing high-quality, performant, and secure Java code
• Connect unfamiliar technical concepts to your existing knowledge base and find pragmatic paths forward
• Balance immediate deliverables with long-term architectural thinking and planning
• Writing extensive and thorough tests
• Extending our cloud offering with security, scalability, and control plane features
• Helping to maintain and extend the FusionAuth Terraform provider
• Supporting other engineers with your cloud and platform expertise
• Writing clear, high-quality documentation for new features
• Participating in the on-call engineer rotation, solving critical customer issues should they arise. While not the norm, we do have some off-hours support requirements.
• Provide technical support to our customers
• Be a voice of positive change in the Engineering organization

Qualifications

Required

• 10+ years of professional software development experience
• 6+ years of experience with a heavy ops or platform engineering component
• Highly proficient in the Java programming language and object-oriented design and implementation
• Deep, hands-on experience with AWS
• Strong platform engineering experience in a Linux environment
• Experience architecting, building, and managing complex application topologies on Kubernetes
• Experience with infrastructure-as-code tools, particularly Terraform
• Experience with designing and building high-availability, highly-performant applications
• Comfortable using AI tools in your development workflow
• Located in the Denver metropolitan area with the ability to come into our Westminster office 2-3 times per week

Preferred

• Experience up and down the entire stack, including cloud infrastructure, operating systems, databases, back-end and front-end services
• Experience with Golang development
• Real working knowledge of relational databases — you understand query optimization, indexing strategies, and database design beyond ORM abstractions
• Passion for security in general, and auth specifically
• Quick learner with the ability to rapidly master new technologies and skills
• Influential communicator: holds strong opinions but adapts flexibly to new information or team input
• Appreciates first principles thinking, but understands when it's time to stop theorizing and start building
• Adaptable to challenges common in a startup with ~60 employees and thrives in a dynamic startup vibe

Compensation

• $170k–$200k expected base salary range*

*Pursuant to various state laws, we must display the pay range for this job. Since we are willing to hire within a broad spectrum of qualifications, this range is broad. The expected base salary may be adjusted based on individual qualifications, role, level and location.

Onsite 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.

Benefits

• Comprehensive health insurance including medical, dental, and vision coverage, with the company covering the majority of your medical premiums to keep your costs low• Fully employer-paid High Deductible Health Plan (HDHP) option paired with a Health Savings Account (HSA), including employer contributions
• Basic life insurance and short- and long-term disability coverage fully paid by the company for essential financial protection
• Voluntary life insurance options to provide additional financial protection for you and your loved ones
• Healthcare and Dependent Care Flexible Spending Accounts (FSAs) to save pre-tax dollars on eligible expenses
• 401(k) plan with company match to help you save for retirement
• Generous paid time off (PTO) plus paid company holidays to support work-life balance
• Employee Assistance Program (EAP) offering confidential counseling and support services
• Professional growth and development opportunities to boost your career journey
• Eligibility for performance-based bonuses or variable compensation tied to individual, team, or company results

Important Details

• Work Authorization: Applicants must be authorized to work for any employer in the U.S. We are unable to sponsor or assume sponsorship of an employment Visa at this time.

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.