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Staff Backend Engineer (Java)
Denver, CO · Information TechnologyAbout Us:
Client offers the most-trusted app building platform for anyone looking for a better way to work. Client gives businesspeople and IT experts the ability to easily build and integrate apps to track, manage, and automate processes in days, not weeks. Our customers make lasting and substantial improvements to their business using Client’s bullet-proof cloud-based technology — and they love getting the industry’s best customer experience every step of the way.
At Client, we don’t just build software, we empower organizations around the world to radically streamline operations and digitize frontline workflows with zero code required. Our low-code/no-code platform powers everything from post-loan processing in finance, to sterile field audits in hospitals, to safety inspections on construction sites– all instantly deployable to web and native mobile with no additional engineering effort. And it’s your backend engineering that brings these real-time, powerful experiences to life.
We're looking for a Staff Backend Engineer with expertise in Java who’s passionate about architecting and optimizing scalable systems in a cutting-edge field. You’ll join a tight-knit, deeply collaborative team that’s powering enterprise mobility, high-volume data flows, and dynamic business logic across industries.
What Makes Our Platform Unique
What You’ll Do
Build and Elevate Our Core Platform
Must-Have Qualifications
Client offers the most-trusted app building platform for anyone looking for a better way to work. Client gives businesspeople and IT experts the ability to easily build and integrate apps to track, manage, and automate processes in days, not weeks. Our customers make lasting and substantial improvements to their business using Client’s bullet-proof cloud-based technology — and they love getting the industry’s best customer experience every step of the way.
At Client, we don’t just build software, we empower organizations around the world to radically streamline operations and digitize frontline workflows with zero code required. Our low-code/no-code platform powers everything from post-loan processing in finance, to sterile field audits in hospitals, to safety inspections on construction sites– all instantly deployable to web and native mobile with no additional engineering effort. And it’s your backend engineering that brings these real-time, powerful experiences to life.
We're looking for a Staff Backend Engineer with expertise in Java who’s passionate about architecting and optimizing scalable systems in a cutting-edge field. You’ll join a tight-knit, deeply collaborative team that’s powering enterprise mobility, high-volume data flows, and dynamic business logic across industries.
What Makes Our Platform Unique
- It’s fully dynamic and multi-tenant: our backend drives the dynamic rendering engines across Android, iOS, and Web by delivering real-time configurations, business logic, and workflows from a central source.
- It’s mission-critical: powering large-scale operations in healthcare, finance, construction, and beyond—requiring bulletproof reliability, security, and scale.
- It’s cloud-native and scalable: designed for AWS with containerization and orchestration, ensuring resilience and performance across demanding environments.
- No two applications are the same: through cutting-edge dynamic systems, our customers can create, refine and deploy applications as quickly as their business needs change.
What You’ll Do
Build and Elevate Our Core Platform
- Design, develop, and maintain backend services using Java (Java 11+), Spring Boot, and Hibernate.
- Architect RESTful APIs and microservices that deliver dynamic experiences to our mobile and web platforms.
- Optimize relational database designs, indexes, and query performance to handle large multi-tenant data loads.
- Contribute to strategic architectural decisions, focusing on scalability, security, and maintainability.
- Implement secure coding practices, identify and remediate vulnerabilities, and tune JVM performance.
- Improve deployment pipelines with GitLab CI/CD and robust automated testing.
- Troubleshoot complex production issues, perform root cause analysis, and deliver lasting solutions.
- Partner with frontend, mobile, and infrastructure teams to ensure cohesive end-to-end experiences.
- Be open to taking on generalist responsibilities—whether it’s infrastructure, frontend troubleshooting, or mentoring peers.
Must-Have Qualifications
- 10+ years of experience in backend software development with a focus on Java.
- Expertise in enterprise Java (Java 11+), including frameworks like Spring Boot, Spring MVC, and Hibernate.
- Strong knowledge of object-oriented programming, design patterns, concurrency, and memory management with understanding of OOP, SOLID, DRY principles.
- Hands-on experience with RESTful API development and microservices architectures.
- Proficiency in relational databases (e.g., MySQL, PostgreSQL) with experience in schema design and performance tuning.
- Experience with cloud platforms (AWS preferred, or Azure/GCP) and containerization technologies.
- Familiarity with CI/CD pipelines, automated testing, and DevOps best practices.
- Demonstrated ability to identify, manage, and reduce complexity within a codebase
- Excellent analytical, problem-solving, and communication skills, with the ability to lead projects and collaborate effectively in cross-functional teams.
- Demonstrated experience and willingness to problem-solve outside of your specialty.
- Ability to leverage AI / LLMs for learning, implementation and efficiency gains.
- Must be authorized to work in the United States.
- Experience with AWS AuroraDB and multi-tenant SaaS architectures.
- Familiarity with dynamic query generation mechanisms for advanced data retrieval.
- Proficiency with GitLab CI/CD and security best practices.
- Prior experience leading teams or mentoring engineers.
- Experience developing with additional languages such as Node.js, Python and Bash