Senior Java Full Stack Developer

Senior Java Full Stack Developer

Location: McLean, VA - fully onsite

Duration: 6 months with possible extension

Must Have Qualifications: Candidates must have 5+ years of experience, with a strong emphasis on back-end development using Java and Spring Boot. Candidates should have experience supporting fixed income applications, or a broader fixed income background, and be comfortable working with financed focused users. Freddie / Fannie experience is a strong plus.

Key Responsibilities

• Backend Development: Architect and develop scalable Spring Boot RESTful APIs and services that integrate with multiple upstream data sources, analytics systems, and the Derivative Analytics Platform UI
• System Integration: Connect backend services to existing internal platforms to retrieve market data, run risk analytics, and surface results to end users.
• Code Quality & Testing: Write clean, maintainable code backed by comprehensive automated tests using JUnit, with strong unit and integration coverage.
• Technical Debt & Continuous Improvement: Proactively identify and resolve defects, reduce technical debt, and champion software engineering best practices across the codebase.
• Collaboration & Delivery: Coordinate across the full stack — data, services, APIs, and infrastructure — to deliver end-to-end.
• Design & Code Reviews: Actively contribute to architecture discussions, pull request reviews, and technical documentation with a focus on thoughtful, scalable design.

Required Qualifications

· 5+ years of professional software development experience, with strong proficiency in Java and the Spring Boot ecosystem (REST APIs, Spring Security, Spring Data JPA, etc.).

· 2–3 years of experience with Git in a collaborative, team-based development workflow (branching strategies, PRs, code reviews).

· 1–2 years of experience with containerization and orchestration technologies (Docker, Kubernetes, or Podman).

· Experience with TypeScript and modern React tooling (Vite, Next.js, etc.).

· Solid experience with JUnit and/or other automated testing frameworks; commitment to high test coverage.

· Strong communication skills with the ability to bridge technical and business conversations.

· Demonstrated critical thinking, problem-solving ability.

Preferred Qualifications

· Graduate degree in Computer Science, Mathematics, Statistics, or a related quantitative discipline.

· Familiarity with relational databases and writing complex SQL queries.

· Experience with message brokers or event-driven architectures (e.g., Kafka, RabbitMQ) in a financial services context.

· Exposure to cloud platforms (AWS, Azure, or GCP) and CI/CD pipeline tooling (Jenkins, GitHub Actions, etc.).

· Experience using JIRA or similar tools for Agile planning, sprint tracking, and delivery management.

· Hands-on React development experience, including component architecture, state management (e.g., Redux, Zustand, or React Query), and API integration.

· Prior experience in financial services, capital markets, or fintech environments.

· Proficiency with shell scripting for automation, deployment support, and operational troubleshooting.

· Working knowledge of fixed income concepts: duration, convexity, spread, option-adjusted spread (OAS), and related derivatives.

EEO: "Mindlance is an Equal Opportunity Employer and does not discriminate in employment on the basis of – Minority/Gender/Disability/Religion/LGBTQI/Age/Veterans."