Senior Software Developer

Role:
Senior Software Developer. Type: 6-Month Contract-To-Hire.

Location:

3 Days Onsite (T-Th).

This role is ideal for a software engineer with strong Java and JavaScript fundamentals (or deep C#/.NET experience and a demonstrated ability to transition to Java), and hands‑on experience with React is preferred. The successful candidate will have a proven track record applying modern software engineering practices to build and modernize enterprise applications. They are passionate about continuous learning, embrace a growth mindset, and are eager to leverage AI‑assisted development tools to accelerate delivery while maintaining high standards of code quality, security, and reliability.

• Design, develop, and maintain full stack applications using Java (Spring Boot),
  React
  , and related technologies
• Lead the modernization of legacy and monolithic applications into modular services and microservices
  , including API design, data migration strategies, and gradual decomposition of legacy codebases
• Build responsive, accessible, and performant React‑based UIs with reusable components and maintainable state management.
• Develop secure, well‑structured back‑end services and REST APIs, ensuring robust authentication, authorization, and data protection
• Use AI coding assistants (e.g., Git Hub Copilot, Cursor) to improve productivity, documentation quality, test coverage, and refactoring safety, while exercising judgment and code review discipline
• Champion engineering best practices including code reviews, automated testing, CI/CD, and observability
• Mentor junior developers and contribute to a culture of learning, experimentation, and continuous improvement

• 5-8 years of hands‑on software development experience in modern tech stacks
• Strong proficiency with Java
  , Spring Boot
  , and REST API design. Experience with C# and .Net Core will be considered with exposure to Java
• Solid experience with React
  , and/or JavaScript; experience migrating from legacy front‑end frameworks (e.g., Angular
  
  JS) to React is highly desirable.
• Experience with relational databases (e.g. Oracle, SQL Server, Postgre
  
  SQL) and query optimization.
• Experience with Cloud Development provisioning and configuring resources such as Functions, App Services and APIM in Azure Cloud or AWS equivalent.
• Previously implemented event‑driven architecture
• Well versed in CI/CD pipelines (Jenkins, Azure Dev Ops, Git Hub Actions etc.)
• Comfortable working in Agile teams and collaborating across product management, QA, and operations
• Accustomed to collaborating with architecture, security, and Dev Ops teams
• Strong communication skills and a growth mindset
  . actively seeks feedback, experiments with new tools and patterns, and shares learnings with the team
• Enthusiasm for using AI‑based coding assistants responsibly to accelerate delivery, improve code quality, and support knowledge sharing

• Exposure to containerization and orchestration (Docker, Kubernetes, AKS)
• Familiar with concepts such as MCP servers, RAG applications and the use of Graph databases
• Exposure to observability and the use of open telemetry to instrument code
• Experience with infrastructure‑as‑code tools (e.g., Terraform)
• Experience with modularizing or decomposing monolithic applications (even if partial or within specific domains/modules).

Vaco by Highspring values a diverse workplace and strongly encourages women, people of color, LGBTQ+ individuals, people with disabilities, members of ethnic minorities, foreign‑born residents, and veterans to apply.

Vaco by Highspring is an Equal Opportunity Employer and does not discriminate against any employee or applicant for employment because of race (including but not limited to traits historically associated with race such as hair texture and hair style), color, sex (includes pregnancy or related conditions), religion or creed, national origin, citizenship, age, disability, status as a veteran, union membership, ethnicity, gender, gender identity, gender expression, sexual orientation, marital status, political affiliation, or any other protected characteristics as required by federal, state…