Senior Software Developer POST NUMBER: 476771
Type: 6-Month Contract-To-Hire
Location: 3 Days Onsite (T-Th)
Summary
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.
Key Responsibilities
- 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., GitHub 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., AngularJS) to React is highly desirable.
- Experience with relational databases (e.g. Oracle, SQL Server, PostgreSQL) 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 DevOps, GitHub Actions etc.)
- Comfortable working in Agile teams and collaborating across product management, QA, and operations
- Accustomed to collaborating with architecture, security, and DevOps 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
Nice to Have Experience
- 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.
EEO Notice
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 or local law.
Vaco by Highspring and its parents, affiliates, and subsidiaries are committed to the full inclusion of all qualified individuals. As part of this commitment, Vaco by Highspring and its parents, affiliates, and subsidiaries will ensure that persons with disabilities are provided reasonable accommodations. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact HR@vaco.com .
Vaco by Highspring also wants all applicants to know their rights that workplace discrimination is illegal.
By submitting to this position, you agree that you will be giving Vaco by Highspring the exclusive right to present your as a candidate for the foregoing employment opportunity. You further agree that you have represented information about yourself accurately and have not affirmatively misrepresented your qualifications. You also agree to maintain as confidential, to the fullest extent permitted by law, any information you learn from Vaco by Highspring about the position and you will limit disclosure of information about the position only to the extent necessary to perform any obligations in furtherance of your application. In exchange, Vaco by Highspring agrees to exercise reasonable efforts to represent you through all solicitation, job screening and resume dispersal.
Privacy Notice
Vaco by Highspring and its parents, affiliates, and subsidiaries (“we,” “our,” or “Vaco by Highspring”) respects your privacy and are committed to providing transparent notice of our policies.
- California residents may access Vaco by Highspring HR Notice at Collection for California Applicants and Employees here.
- Virginia residents may access our state specific policies here.
- Residents of all other states may access our policies here.
- Canadian residents may access our policies in English here and in French here.
- Residents of countries governed by GDPR may access our policies here.
Pay Transparency Notice
Determining compensation for this role (and others) at Vaco by Highspring depends upon a wide array of factors including but not limited to:
- the individual’s skill sets, experience and training;
- licensure and certification requirements;
- office location and other geographic considerations;
- other business and organizational needs.
With that said, as required by local law, Vaco by Highspring believes that the following salary range referenced above reasonably estimates the base compensation for an individual hired into this position in geographies that require salary range disclosure. The individual may also be eligible for discretionary bonuses.