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.
Remote Legacy Codebase Migration Expert - AI Trainer ($200-$200 per hour) • Evansville, Indiana, US
Responsibilities The primary responsibility of this position is to read meters and record consumption of the water used, cleaning of meter boxes, and removal of vegetation impeding access to meters... Show more
Adventure Travel Consultant Remote.Evansville, Indiana, United States.Craft Adventures, Expeditions & Cultural Escapes.Remote | Flexible Schedule | Full-Time or Part-Time.Turn Your Passion for Adve... Show more
Mortgage Field Inspector (1099 Independent Contractor).Mortgage Field Inspector (1099 Independent Contractor).Flexible Schedule | Part-Time or Full-Time | Weekly Pay.We are seeking reliable and det... Show more
This role is best suited for individuals who are serious about building long-term skills and client relationships within the travel industry.We are seeking motivated individuals to train as Travel ... Show more
Recent CDL-A Grads – Start Your Trucking Career with Paid Training! * *Just got your CDL-A, We’ve got the perfect opportunity to launch your career!* We’re looking for motivated, safety-mind... Show more
Surrogacy Opportunity Starts at 60K-75K+ with a $1,250 Pre-Screening Bonus.Applying for this role is straight forward Scroll down and click on Apply to be considered for this position.Your surrogac... Show more
Surrogacy Opportunity Starts at 60K-75K+ with a $1,250 Pre-Screening Bonus.Applying for this role is straight forward Scroll down and click on Apply to be considered for this position.Your surrogac... Show more
Surrogacy Opportunity Starts at 60K-75K+ with a $1,250 Pre-Screening Bonus.Applying for this role is straight forward Scroll down and click on Apply to be considered for this position.Your surrogac... Show more
Surrogacy Opportunity Starts at 60K-75K+ with a $1,250 Pre-Screening Bonus.Applying for this role is straight forward Scroll down and click on Apply to be considered for this position.Your surrogac... Show more
Surrogacy Opportunity Starts at 60K-75K+ with a $1,250 Pre-Screening Bonus.Applying for this role is straight forward Scroll down and click on Apply to be considered for this position.Your surrogac... Show more
Surrogacy Opportunity Starts at 60K-75K+ with a $1,250 Pre-Screening Bonus.Applying for this role is straight forward Scroll down and click on Apply to be considered for this position.Your surrogac... Show more
Remote Jobs are now available in your area.This position is a work from home position.You will not need to come into the office.Benefits: Health Insurance, 401K, Vacation& PTO.Apply now! Work f... Show more
Independent Contractor Residential Mortgage Inspector.FAR Inspections is actively seeking a reliable independent contractor to perform residential mortgage inspections in Gibson County, Indiana and... Show more
Surrogacy Opportunity Starts at 60K-75K+ with a $1,250 Pre-Screening Bonus.Applying for this role is straight forward Scroll down and click on Apply to be considered for this position.Your surrogac... Show more
Earn up to $400/week, depending on the number and type of studies you complete.Share honest feedback on products and services from independent brands.Assignments include short online surveys (10–20... Show more
We are urgently seeking people interested in taking market research studies for well known brands.If you are a self-starter, looking for flexible hours throughout the week, this may be for you! Ear... Show more
Surrogacy Opportunity Starts at 60K-75K+ with a $1,250 Pre-Screening Bonus.Applying for this role is straight forward Scroll down and click on Apply to be considered for this position.Your surrogac... Show more
Job Details:This position is responsible for data collection and entry into the system and weight of products while maintaining a safe work environment and adhering to Tyson policies and procedures... Show more
We are urgently seeking people interested in taking market research studies for well known brands.If you are a self-starter, looking for flexible hours throughout the week, this may be for you! Ear... Show more
Are you looking for a long term, quality position with a company that believes you are the top priority? ProDrivers Automotive Group is hiring for local at-home-daily driver positions in the Evansv... Show more
