Nextiva - Principal Engineer - Java

Description : About the job : Redefine the future of customer experiences. One conversation at a time.At Nextiva, were reimagining how businesses connect, bringing together customer experience and team collaboration on a single, conversation centric platform.Powered by AI, driven by human innovation.Our culture is forward thinking, customer obsessed and built on the belief that meaningful connections drive better business outcomes.Whether its through our signature Amazing Service, the technology we create, or the experiences we cultivate, connection is at the core of who we are.If youre ready to collaborate with incredible people, make an impact, and help businesses everywhere deliver truly amazing experiences, this is where you belong.- Build Amazing.- Deliver Amazing.- Live Amazing.- Be Amazing.Nextiva is currently seeking bright and talented individuals for a Principal Software Engineer position to join our expanding development team.This position is responsible for helping to drive technology efforts which may include architectural design, supporting existing applications, new application development, application testing, and user support.This developer will work with a growing team and help develop new systems from the ground up, as well as support existing applications.A commitment to collaborative problem solving, sophisticated design, and quality product is essential.As a Principal Software Engineer, you will assist in the development, implementation and management of technology-based business solutions to improve our product offerings.You will assist in the design, coding, testing, and implementation of software applications to meet both functional and technical requirements.The responsibilities of a Principal Engineer range from : designing systems; writing, developing, testing, and reviewing code; supporting existing applications; liaising with end users to fix defects, find solutions, and test them; adding functionality to applications by designing and implementing solutions; and more.Key Responsibilities : - Lead Software Delivery Across Teams : Collaborate with and guide one or more development teams to build and ship software solutions that solve complex, high-impact customer problems.- Influence Strategic Technical Decisions : Play a critical role in driving architectural direction, technology selection, and long-term technical strategy across the engineering organization.- Design and Develop Scalable Systems : Build robust, RESTful web applications and design highly available distributed systems that support real-time business communications at scale.- Architect End-to-End Solutions : Tackle complex, cross-cutting challenges that span multiple services and architectural layers, ensuring cohesive and maintainable solutions.- Embrace Cutting-Edge Technology : Leverage modern tools, patterns, and platforms to create scalable, resilient, and fault-tolerant systems that align with cloud-native principles.- Shape the Technical Roadmap : Contribute to and help define the engineering roadmap, ensuring alignment with business goals, platform evolution, and industry best practices.- Drive Customer-Centric Development : Work closely with the product management team to deeply understand user needs, prioritize features, and deliver value through thoughtful, customer-focused design.- Champion Quality and Maintainability : Deliver testable, well-structured, and maintainable code while fostering a culture of engineering excellence and continuous improvement.- Continuously Learn and Innovate : Stay ahead of emerging technologies and development practices, and foster an environment where learning and experimentation are encouraged.Required Skills & Expertise : - 10+ years of professional software development experience with a strong emphasis on Java-based systems, backend architecture, and cloud-native service design.- Deep expertise in RESTful API design, microservices architecture, and scalable distributed systems.- Extensive hands-on experience with : 1. Java (11+), Spring Boot, JPA/Hibernate2. Kafka, Redis, and both SQL (Postgres, MySQL) and NoSQL (MongoDB) databases3. Proficiency with modern build and package managers including Maven, Gradle, npm, and pip.4. Strong understanding of CI/CD practices, including pipeline creation, blue/green and canary deployments.5. Solid experience with distributed caching, performance tuning, and latency optimization.6. Familiarity with automated testing frameworks such as JUnit, TestNG, Mockito, and related testing strategies (unit, integration, regression).7. In-depth understanding of object-oriented design, design patterns, and enterprise architectural principles.8. Proficient with Linux/Unix-based systems, scripting tools, and command-line utilities.9. Strong focus on secure coding best practices, with experience in data protection, secure APIs, and access control.11. Demonstrated success in leading multi-team initiatives, implementing architectural improvements, and adopting new technologies at scale.Bonus Qualifications : - Industry experience in UCaaS/CCaaS, real-time communications, or VoIP platforms involving SIP, WebRTC, or RTP.- Experience with observability tools like Datadog- Familiarity with Domain-Driven Design (DDD), hexagonal architecture, and event sourcing.- Contributions to open-source projects, engineering blogs, or technical conference speaking.Preferred Experience & Technical Stack : Core Technologies : - Languages & Frameworks : Java, Spring Boot, GraphQL (preferred), SQL- Cloud & Platform Tools : Docker, Kubernetes, GCP Artifact Registry, GCP Storage, GCP Vertex AI- Messaging & APIs : Kafka, REST APIs- Data & Storage : Postgres, MongoDB, BigQuery, Redis, ElasticSearch- Build, Deploy & CI/CD : Git, Gradle, GCP GCloud, Kubernetes, Artifact Registry/Artifactory- Scripting & OS Tools : Bash, Unix/Linux command-lineMicroservice Lifecycle Experience : - Creating microservices with Spring Boot and well-structured RESTful APIs- Building services using Git, Gradle, Docker, GCloud- Deploying services via Kubernetes, GCP Artifact Registry, and GCloud deployment pipelines (ref:hirist.tech)