Senior Full Stack Developer
This is the employer's own posting, not a copy on a job board.
What we know
Is it still open?
Confirmed still open
Last checked 1d ago — checked against the employer's own applicant tracking system, which is the company answering directly.
We re-read the employer's own applicant tracking system and the posting was still there. That is the company answering directly.
How old is it?
Posted 48d ago
The date the source published, not the day we noticed it (2026-09-15). Last seen at its source 3h ago.
We have tracked this listing since 17 Oct 2026 (15 days). The employer's own board has carried it every time we have read it, most recently 3 hours ago.
Is it remote?
Remote
That is the location the employer filed this posting under. Quoted as written — we do not re-word the source's own location.
Who may apply?
Not stated
The description states no restriction of its own. This is the source's own tag.
Skills named in the ad
Recognised terms only, from a fixed vocabulary — this is what CV matching compares against.
Carried by 1 source
-
JazzHR employer's own board first seen 15d ago · last seen 3h ago
The listing
This opportunity is 100% remote.
We are looking for a Senior Full-Stack Developer to join our fast-paced enterprise engineering team. In this senior-level role, you will champion legacy modernization initiatives, systematically breaking down monolithic architectures, legacy databases, and older web frameworks into high-transaction web interfaces and scalable, modern backend solutions across dynamic hybrid infrastructure setups (On-Premises OpenShift & AWS Cloud).
The ideal candidate thrives in aggressive, high-velocity delivery environments, possesses a proven track record of migrating legacy enterprise systems, values proactive team leadership, and actively leverages modern AI-assisted engineering tools to accelerate software development lifecycles without sacrificing code quality.
Candidates must be a U.S. Citizen with an active Department of Treasury MBI.
Core Responsibilities
- Legacy Modernization: Analyze, decouple, and migrate legacy enterprise systems (monoliths, older Java frameworks, complex store procedures) into a clean, decoupled microservices or modular architecture.
- Front-End Architecture: Design and optimize highly responsive web UIs using React, transforming legacy server-rendered views or desktop applications into sleek interfaces while managing complex client-side caching via Redux.
- Back-End Engineering: Build secure, high-throughput RESTful services using Java and Spring Boot, while implementing automated, high-volume bulk data pipelines via Spring Batch to replace outdated legacy batch processing routines.
- Data Migration & Management: Model structured corporate data using JPA and Hibernate ORM to bridge legacy data stores with modern Oracle production databases.
- Test Automation Execution: Author and maintain automated end-to-end testing frameworks, mock environments, and isolation tests using Selenium, JUnit 5, and Mockito to ensure zero regressions during modernization phases.
- Hybrid Infrastructure & DevOps: Author and maintain automated CI/CD workflows using GitHub Actions to cleanly package, containerize, and deploy modernized services across AWS Cloud and OpenShift Container Platform environments.
- AI-Driven Delivery: Integrate generative AI tools (GitHub Copilot, ChatGPT, Claude) into daily workflows to drastically accelerate boilerplate generation, legacy code refactoring, and query optimization.
- Agile Collaboration: Partner closely with architectural leads, product owners, and QA engineers within highly demanding Sprint cycles to ship reliable, well-documented code under tight deadlines.
Experience Level & Expertise
- 10–12 years of professional experience in enterprise-grade software engineering, with a strong emphasis on system transformations, refactoring legacy codebases, and application modernization strategies.
- Languages & Core: JavaScript (ES6+), HTML5, CSS3.
- Frameworks & State: React.js, Redux (or Redux Toolkit)
- Ecosystem Tools: VS Code, NPM.
- Frameworks: Java, Spring Boot, Spring Security.
- Bulk Processing: Spring Batch (Job, Step, Chunk-based processing configurations).
- Data & Relational: JPA / Hibernate, Oracle DB (SQL optimization, indexing, migrating legacy stored procedures), and H2 Database (for in-memory testing).
- Ecosystem Tools: Eclipse IDE, Maven.
- Back-End Unit & Mock Testing: Advanced capability with JUnit 5 and Mockito for structural logic isolation, stubbing behaviors, and legacy code behavioral verification.
- Front-End Unit Testing: UI isolation and state tracking using Jest and React Testing Library.
- Web UI Automation: Strong hands-on experience building and maintaining automated UI regression suites using tools like Selenium WebDriver (Java or JavaScript bindings).
- Cloud & Hosting Platforms: Hybrid environment design spanning AWS (Amazon Web Services) and OpenShift Container Platform (OCP).
- CI/CD Pipeline: GitHub Actions workflow orchestration (integrating automated execution of unit, mocking, and Selenium testing blocks).
- Containerization: Docker / container lifecycle management.
- Version Control: Git, GitHub, GitLab
- Practical experience using GitHub Copilot, ChatGPT, or Claude for syntax generation, deciphering legacy code patterns, query optimization, and rapid debugging.
- Robotic Process Automation (RPA): Experience building or maintaining automated internal workflows using tools such as UiPath or Microsoft PowerApps.
- High-Pressure Resilience: Proven experience delivering production-grade code within fast-paced, highly demanding corporate settings.
- Change Leadership: Ability to safely lead teams through architectural paradigms shifts without disrupting day-to-day business operations.
- Team-First Mindset: Active participant and leader in peer code reviews, architectural discussions, and cross-functional troubleshooting sessions.
- Clear Communicator: Ability to articulate complex backend or deployment blockers concisely to non-technical stakeholders.