Java • inglewood ca
Mercor is partnering with a **frontier AI research lab** to engage experienced software engineers with deep expertise in **legacy codebase migration and modernisation**.We are looking for engineers... Show more
Full Stack Engineer</u></b></p> <p><b>Location:</b> Irvine, CA or Los Angeles, CA Onsite 3 days/week<br /> <b>Alternative Locations:</b> NY... Show more
Job Title: Full Stack Engineer.Location: Onsite at either Irvine, CA or Los Angeles, CA 3 days a week - also can be NYC, Atlanta, Boston or Chicago (if not in LA/Irvine, note candidate must work on... Show more
Offered Position: Software Dev Engineer II – AMZ010452.Position Responsibilities: Design, develop, implement, test, and document embedded or distributed software applications, tools, systems and se... Show more
Oracle is one of the leading ERP technologies that is revolutionizing how tax is managed and how tax departments around the globe operate.If you are someone who thrives in navigating the growing ta... Show more
Mercor is partnering with a **frontier AI research lab** to engage experienced software engineers with deep expertise in **legacy codebase migration and modernisation**.We are looking for engineers... Show more
The position will be supporting a custom CRM application, specifically the operational data or transactional repository.The responsibilities for the position include the analysis, design, developme... Show more
Contribute production-quality code, reviews, and documentation to open-source repositories relevant to the customer's project.Design, implement, and optimize complex algorithms and system component... Show more
Primary Skills: Java (Expert), AWS (Advanced), RESTful (Advanced), GraphQL (Intermediate), SQL/NoSQL (Intermediate).Location: Remote to Any Disney Hubs.Become a critical part of our Identity Platfo... Show more
Newport Beach, CA (Onsite – 5 days per week).A Newport Beach–based consulting and software firm is seeking an experienced Full-Stack Java Engineer to join their team on a Full-Time basis.The organi... Show more
Senior Engineering Manager (Frontend).Gardena, California, United States.Faraday Future (FF) is a California-based mobility company, leveraging the latest technologies and world's best talent to re... Show more
Johnson Service Group is seeking a.This role will support Financials, Project & Grants Accounting, Inventory, and Procurement while partnering with business users on requirements, enhancem... Show more
Salary: $104,000 - 208,000 per year.We require fluency in English at a native or bilingual level.We require proficiency in at least one programming language or framework, such as JavaScript, TypeSc... Show more
West Hollywood / Los Angeles, CA.Applicants must be legally authorized to work in the United States.Visa sponsorship is not available for this role.Our client is a highly respected, innovation-driv... Show more
El Segundo, CA to build end-to-end data solutions and applications for the Positioning, Navigation, and Timing (PNT) Systems Engineering & Integration (SE&I) Team.PNT SE&I provides engi... Show more
Java Architect Job Duties: Achieves e-commerce information architecture operational obj... Show more
Senior AI Software Engineer – AI Applications & Enterprise Product Innovation .Location: Remote within the United States.Travel: Travel as needed for onboarding, team collaboration, and p... Show more
We are seeking an experienced Security Engineer III (L5) individual contributor to expand critical security infrastructure around data protection and accountability.Ring and Blink Customer Support ... Show more
Director Of Engineering, Android.Location: San Francisco, Los Angeles, CA or Dallas, TX.As the Director of Engineering for Android Platforms, you will join an existing team that builds mobile, tabl... Show more
Software Engineer – Flight Reliability.Inglewood, CA – Relocation Assistance Provided.Our client is a leader in the commercial space industry with proven launch services and robust spac... Show more
Mercor is partnering with a **frontier AI research lab** to engage experienced software engineers with deep expertise in **legacy codebase migration and modernisation**. We are looking for engineers who have personally executed complex migrations across **large, production-grade systems**, particularly in **financial services, fintech/payments, insurance, healthcare, telecom, large technology companies, and other mission-critical enterprises**. Strong hands-on experience with production migrations is the primary qualification. ## What You'll Do - Design, implement, review, and evaluate complex **codebase migration and modernisation tasks**. - Analyse legacy code, dependencies, APIs, databases, build systems, and infrastructure to determine safe migration approaches. - Preserve **functionality, backwards compatibility, data integrity, security, and performance** during migrations. - Develop tests and validation strategies to identify migration regressions and behavioural differences. - Evaluate AI-generated migration solutions for **correctness, completeness, maintainability, and production readiness**. ## Relevant Migration Experience Candidates should have deep expertise in **one or more** of the following: - **Language/version:** Java 8 → 17/21, legacy .NET → modern .NET, Python 2 → 3, PHP 7 → 8 - **Language rewrites:** COBOL → Java/Python, JavaScript → TypeScript - **Frameworks:** Angular, Rails, Django, Spring/Spring Boot, , Next.js/Astro, and other major framework upgrades/replacements - **Databases & ORMs:** Oracle/MySQL → PostgreSQL, SQL → NoSQL, Hibernate → jOOQ, Sequelize → Prisma, raw SQL → ORM - **Infrastructure:** VMs/bare metal → containers, Docker/Kubernetes, cloud-native architectures - **CI/CD:** Jenkins/Travis → GitHub Actions, GitLab CI, or modern deployment pipelines - **Build/package tooling:** Maven → Gradle, Webpack → Vite, CRA → Next.js, npm → pnpm - **APIs:** REST → GraphQL, HTTP/REST → gRPC, SOAP/legacy APIs → modern interfaces - **Authentication:** Legacy auth → OAuth/OIDC, SAML/SSO, modern identity and authorisation systems - **Repositories:** Polyrepo → monorepo using Bazel, Nx, Turborepo, or similar - **Testing:** Migration of unit, integration, browser, and E2E testing frameworks - **Dependencies/SDKs:** Replacement of deprecated or EOL libraries, APIs, runtimes, and vendor SDKs ## Ideal Background - **5+ years of professional software engineering experience**, ideally Senior, Staff, Principal, or equivalent. - Personally owned or made substantial technical contributions to **large-scale production migrations**. - Experience working with mature systems involving technical debt, complex dependencies, legacy integrations, and significant regression risk. - Strong knowledge of **compatibility, testing, observability, staged rollouts, rollback strategies, and behavioural equivalence**. - Ability to reason deeply about unfamiliar codebases and diagnose subtle migration failures. - **Especially valuable:** engineers who have modernised **core banking, payments, trading, insurance, healthcare, telecom, or other high-reliability systems**. - For **COBOL/mainframe modernisation, experience with technologies such as z/OS, CICS, JCL, DB2, VSAM, batch processing, and COBOL-to-Java/Python migrations** is particularly valuable. ## Why Join - Apply your migration expertise to help shape how **frontier AI models understand and execute complex software modernisation**. - Work on technically challenging problems modelled after **real-world, production-scale legacy systems**. - Contribute expertise developed from large enterprise migrations without needing an open-source maintainer background. - Opportunity for **ongoing work** as the research program expands.
