Fullstack Developer
A fullstack engineer who owns the maintenance, support, and modernization of mission-critical enterprise applications in regulated environments — fixing production incidents, applying security fixes, and driving legacy-to-modern architecture upgrades. Core stack is Java/Spring with legacy web frameworks, React/jQuery frontends, and Oracle/Sybase databases.
- Compensation
- Not disclosed
- Location
- Singapore
- Work setup
- Hybrid
- Seniority
- Not specified
- Employment
- Not specified
- Experience
- 3+ years
- Category
- Fullstack
- Posted
Skills
Must have
- Degree in Computer Science, Information Technology, or equivalent practical experience
- Minimum 3-5 years of experience developing, maintaining, and supporting enterprise systems
- Strong experience with Java (including legacy versions like Java 8), Spring Framework, Spring Boot
- Familiarity with legacy web frameworks (Apache Struts, JSF, JSP, JSTL)
- Familiarity with Oracle WebLogic Server administration
- Knowledge of modern frontend frameworks (e.g., React)
- Experience with jQuery and web storage technologies (LocalStorage, Cookies)
- Experience with Oracle and Sybase databases, including troubleshooting stored procedures
- Proficient in file-based integrations, SFTP protocols, and batch processing frameworks/scheduled jobs
- Expertise in API development, microservices architecture, containerization, and orchestration
- Experience with cloud deployments and cloud products
- Experience integrating authentication/authorization systems (SiteMinder, LDAP, Active Directory) and implementing OIDC
- Familiarity with secure coding practices
- Proficient in version control (Git, SVN)
- Basic Linux/Unix system administration
- Proficient in CI/CD/DevOps tools
Nice to have
- Experience working with government or highly regulated industry systems
- Proven track record in leading modernization or redevelopment projects
- Experience with event-driven solutions such as Solace
- Experience using Azure DevOps tools, including Azure Boards and Azure Pipelines
Full description
Company Overview / Employee Value Proposition
Established in 2010, Vinova is a passion-driven and award-winning development company for mobile, web, and enterprise applications. Our clients span the globe and cover a wide range of projects including IoT, blockchain, banking, fintech, networking, and ecommerce. Vinova earns respect from customers by being committed to quality, flexibility, and speed. We strive to build great products by working with a passion, working closely with our customers, and through open but disciplined collaboration. You will be working in an encouraging and challenging environment, taking advantage of the latest technology to develop excellent mobile apps for clients. You will be engaging clients in both on-site and off-site support. Interested to join our all-star team? Submit your application to us now! Tell us why you want to work with us and why you think you'd be a good candidate. We are looking forward to hearing from you!
Job Summary
We are seeking a highly motivated and experienced Full Stack Engineer to join our team, taking the lead in the maintenance, support, and modernization of mission-critical enterprise applications. The ideal candidate is a proactive problem-solver who excels in stabilizing legacy systems while driving progressive technology upgrades. You will play a hybrid role, combining deep technical troubleshooting with strategic modernization roadmaps to ensure system stability, security, and performance for highly regulated environments.
Responsibilities
- System Maintenance & Stability: Take ownership of existing web applications and enterprise systems by managing change requests, conducting thorough impact assessments, resolving bugs, and optimizing performance.
- Incident Management & Operations: Respond promptly to production incidents, perform root cause analysis (RCA) to prevent recurrence, and collaborate with operations teams to implement system monitoring, backups, and disaster recovery plans.
- Security & Compliance: Implement critical security fixes based on findings from source code reviews, open-source analysis, vulnerability assessments, and penetration testing (VAPT).
- System Modernization: Analyze system dependencies and business requirements to design and execute modernization roadmaps, transitioning legacy systems to modern architectures.
- Documentation & Knowledge Sharing: Document legacy system architectures and develop knowledge transfer materials to support cross-functional team understanding and ensure operational continuity.
Key Requirements
- Experience & Education: Degree in Computer Science, Information Technology, or equivalent practical experience. Minimum 3-5 years of experience developing, maintaining, and supporting enterprise systems.