Lead Software Engineer – Front End Focused (React/TypeScript + Java + AWS) – On-Site in Irvine, CA

Lead Software Engineer – Front End Focused (React/TypeScript + Java + AWS) – On-Site in Irvine, CAOptomi, in partnership with a leading financial services company, is seeking a Lead Software Engineer to fulfill a contract-to-hire opportunity for a client based in Irvine, CA.As a Lead Software Engineer, you will serve as a senior hands-on contributor within an agile engineering team focused on building and enhancing customer-facing applications in a modern cloud environment. This role is heavily weighted toward front-end development, with approximately 60–70% of the work centered around building modern UI components and experiences using React and/or Angular.The ideal candidate will have a strong UI engineering background while also bringing enough full stack knowledge to build basic APIs, contribute to backend services, and operate effectively within a Java Spring Boot AWS ecosystem. This is not a purely architectural role. The team is looking for someone who can independently lead modules, contribute to design discussions, mentor junior engineers, and remain deeply hands-on in development.What the Right Professional Will EnjoyWorking on a highly visible enterprise application stack with a strong focus on modern UI developmentBuilding and enhancing both new functionality and existing applicationsOperating within a collaborative agile environment where engineers contribute across the stackHaving ownership over modules and features from development through deploymentWorking with modern technologies including React, Angular, Java 18, Spring Boot, AWS, DynamoDB, and PostgreSQLContributing to cloud-hosted applications running within AWS ECS environmentsPlaying a technical leadership role without moving fully away from hands-on engineeringApply Today If Your Background IncludesStrong hands-on experience with React and/or Angular developmentExperience building reusable UI components and modern front-end applications using JavaScript and/or TypeScriptAbility to contribute to backend API development using Java and Spring BootExperience working in full stack environments, with stronger emphasis on front-end engineeringExposure to AWS cloud technologies and hosting applications within AWS environmentsExperience with relational and NoSQL databases such as PostgreSQL and DynamoDBUnderstanding of CI/CD pipelines, application resiliency, and secure development practicesExperience operating within Agile software engineering teamsAbility to independently lead technical modules and mentor less experienced developers