Python • columbus oh
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
Principal Supply Chain Data Analyst.ITS is seeking a Principal Supply Chain Data Analyst to support a well-established organization in a critical infrastructure industry.This role will use data, re... Show more
Predictive Modeler / Pricing Modeler.As a team member in Finance at Nationwide, a Fortune 100 company with nearly $70 billion in annual sales, the opportunities are endless! Let Nationwide help cre... Show more
Expert Contributor - Software Engineer.Task-Based Independent Contractor Opportunity.We're looking for engineers who can operate at an expert level across real-world, end-to-end tasks in terminal e... Show more
Java/Python + AWS</b></p> <p><b>Columbus, OH- relocation open </b></p> <p><b>W2 Candidates only </b></p> <p> </p> <ul&g... Show more
AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more
Rogue Fitness is the leading manufacturer of strength and conditioning equipment in the world - barbells, power racks, sleds, and the equipment behind the CrossFit Games, Xenom Decathlon of Fitness... Show more
Role Overview** Mercor is seeking experienced **Python engineers** to build the dataset that teaches AI agents to reason about real codebases.Codebase Q&A is a reinforcement-learning environment fo... Show more
Looking to launch or grow a career in IT—without the time or cost of a full degree? Columbus State Community College's Short-Term IT Certificate programs are non-credit, so you can build job-ready ... Show more
Bring your expertise to JPMorgan Chase.As a part of Fraud Strategy, you are at the center of keeping JPMorgan Chase strong and resilient.You help the firm grow its business in a responsible way by ... Show more
AI data lab for training frontier models and evaluating AI agents.Experts contribute their diverse subject matter knowledge across domains such as finance, healthcare, STEM engineering, and more.AI... Show more
Security Architect - Consultant 9309.Employment Type: W2 Only (No Subcontractors).Contract Duration: 12-Month Contract.Our direct client is seeking an experienced.Linux, Windows, network security p... Show more
We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible.As a Java / Python Lead Software Engineer- Trading Systems at JPMorganChase wi... Show more
SarelaTech is seeking a Cybersecurity Engineer to support the Defense Logistics Agency (DLA) Enterprise Cyber Security Service Provider (CSSP).The selected candidate will provide technical expertis... Show more
Orange Barrel Media (OBM) creates and operates iconic urban media displays that advertisers ask for by name in top U.Since our founding in 2004, OBM has pioneered a community-oriented model of outd... Show more
We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible.As a Lead Software Engineer at JPMorganChase within the Consumer and Community... Show more
At TechBiz Global, we are providing recruitment service to our TOP clients from our portfolio.Coherency Verification Enginee.If you're looking for an exciting opportunity to grow in a innovative en... Show more
About the Role Mercor is partnering with a leading technology organization to recruit experienced Electrical Test Automation Engineers for a short-term project.Engineers will apply hands-on industr... 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
SAP BASIS / HANA Administrator/NetWeaver Admin.SAP BASIS / NetWeaver Administration.SAP Kernel & Support Package Upgrades.System Refreshes / System Copies / Migrations.SAP HANA Backup & Rec... 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.
