Principal Software Engineer - Java​/Boot​/React; In Office

About the Role

We are hiring a Principal Full-Stack Engineer to design,build, and operate scalable enterprise applications on a modern Java and Reactstack. This is a senior individual-contributor role with technical leadership scope: you will own architecture decisions, drive engineering excellence,integrate AI capabilities into production systems, and mentor mid- andjunior-level engineers.

The right candidate has deep hands-on expertise acrossbackend, frontend, cloud-native microservices, and Dev Sec Ops  practices — andthe judgment to make trade-offs in ambiguity without waiting for direction.

• React
• Java 17+
• Python
• Microservices
• AWS/Azure
• RDBMS
• No
  
  SQL

• Own architecture decisions and drive engineering excellence on a modern Java, Python, and React stack.
• Integrate AI capabilities into production systems, includingLLMs, embeddings, RAG pipelines, and agentic
• workflows.
• Drive architectural decisions and set technical directionacross cross-functional teams.
• Lead end-to-end delivery of complex projects, from design through deployment.
• Mentor mid- and junior-level engineers through complextickets, debugging, root-cause analysis, and production incident response.
• Coach engineers on writing effective unit and integration tests and navigating CI/CD pipelines with confidence.
• Guide engineers into adjacent areas such as cloud computing,AI/ML, and Dev Ops to expand their scope and impact.
• Collaborate with data science and ML teams to operationalizemodels, build evaluation pipelines, and deploy production-ready AI services.
• Translate business requirements into scalable technical solutions and explain trade-offs to product, design, and executive stakeholders.

• 10+ years of hands-on software development experience, withdeep expertise in modern Java full-stack development.
• Strong command of Java frameworks and libraries, including
  
  Spring, Spring Boot, and Hibernate.
• Proven experience building single-page web applications using React, Bootstrap, and Node.js.
• Proven ability to build responsive, intuitive user interfaces and translate UI/UX mockups into production-ready experiences.
• Strong hands-on proficiency with Python for scripting,automation, data processing, and backend services.
• Demonstrated experience architecting and implementingmicroservices and event-driven systems using messaging platforms such as Kafkaor RabbitMQ.
• Expertise developing and maintaining RESTful APIs, backendservices, and database schemas across relational (SQL Server, PostgreSQL) andNo
  
  SQL (MongoDB, Elasticsearch) platforms.
• Strong SQL development skills, including query optimization and performance tuning.
• Hands-on experience deploying and operating containerizedmicroservices on AWS and/or Azure, applying cloud-native patterns and infrastructure-as-code.
• Working knowledge of modern security frameworks and standards such as OAuth 2.0, OpenID Connect, and JWT.
• Proven ability to proactively detect and remediate securityvulnerabilities across application code and infrastructure within establishedSLAs.
• Experience with modern testing frameworks (Jest, Mocha,Chai) and a commitment to test-driven development, including unit and integration testing.
• Ability to enforce engineering best practices through peercode reviews, architectural standards, and raising the bar on code quality.
• Proven ability to troubleshoot complex, cross-stackproduction issues and drive root-cause analysis to resolution.
• Hands-on experience with Agile methodologies and Dev Opsculture across the software delivery lifecycle, including managing work andreleases through Jira and Azure Dev Ops.

• Practical experience integrating Large Language Models intoapplications via APIs (OpenAI, Anthropic Claude, Azure OpenAI, AWS Bedrock).
• Famili…