Java software developer • worcester ma
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
Biotherapeutics and Genetic Medicine (BGM) sits within AbbVie’s Discovery Research organization and supports discovery and optimization across biotherapeutic and genetic medicine modalities, includ... 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
New England Chiropractic Health in Worcester, MA is looking for a friendly and organized Front Desk Receptionist to be the welcoming face of our practice! This is a fantastic opportunity to join a ... Show more
We are seeking a hardworking and reliable.In this role, you will oversee all aspects of the construction projects and ensure they progress on schedule and within budget.The ideal candidate is an ex... Show more
Responsible for managing the complete life cycle of large projects identified as priorities within the company.This includes defining business objectives, vision, success criteria and measurement, ... Show more
Computer Repair Technician – Hardware Only | Flexible Schedule .We're hiring hands-on Computer Repair Technicians for hardware-only repairs and installations on laptops and desktops.No software wor... Show more
Reporting to the Practice Manager, the Medical Office Assistant is responsible for interacting with patients in a healthcare setting and managing administrative tasks for the medical team.The Medic... Show more
Core Banking Implementation Manager.Position to fill: Core Banking Sr.Industry: Core Banking Software.Location: Remote, Various US Cities.Salary range: Strong compensation package + benefits.Our cl... Show more
Healthcare PM with Data Migration Experience.USA based corporation duly organized under the laws of the Commonwealth of Georgia.Software Development, Software Consultancy and Information Technology... Show more
QA Automation Engineer (Software Engineer / Quality Assurance Analyst) .Hybrid — Onsite 3+ days per week.QA Automation Engineer (Software Engineer / Quality Assurance Analyst).IT QA automation ini... Show more
Our Information Technology department is seeking a Senior Application Engineer with Pega experience to join our growing team.POSITION OVERVIEW:</p><p>The successful candidate will suppo... Show more
Reporting to the Practice Manager, the Medical Office Assistant is responsible for interacting with patients in a healthcare setting and managing administrative tasks for the medical team.The Medic... Show more
The competencies critical to this position include superb organizational skills, keen attention to detail, and the ability to identify inefficiencies and recommend solutions.Coordinates all activit... Show more
New Leaf Salon and Spa in Northborough, MA is looking for an enthusiastic and polished Salon Assistant and Front Desk team member to be the welcoming face of our salon experience.This is a fantasti... Show more
The Academic Policy Intern for the Department of Academic Affairs, Student Affairs and Equity will work with the Senior Vice President on topics related to higher education policy, Massachusetts ge... Show more
The Project Manager assists all with-in the assigned scope of responsibility to obtain, evaluate, coordinate, and distribute the information and authorizations required to construct the project on ... Show more
Environmental Services Company seeks PROJECT MANAGER.Job Summary: Responsible for the technical specification, cost, schedule, scope and take off, quantity estimates and buyouts of large environmen... Show more
Overview** We're looking for professionals with hands-on, real-world experience in specialized applications.Application Expertise and Access You must already have **Android Studio** installed/avail... Show more
Sales Representatives for a Growing B2B SaaS Startup.Our B2B SaaS company is searching for Sales Persons who will help to grow in already opened markets and penetrate to the new verticals.Location:... 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.
