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Java Developer

SOHO Square SolutionsTysons, VA🇺🇸United StatesPosted 12 Jul 2026

Quick Overview

Work Type
On Site
Level
Mid Senior

Job Description

Job Title: Developer-Full Stack Senior
Location: McLean, VA (Onsite) - Locals Only
Duration: 6 Months
Interview Type: In-Person required
 
Job Description:
Must Have Qualifications: Candidates must have 5+ years of experience, with a strong emphasis on front end development (approximately 70%) using front end applications such as React and
Typescript, complemented by back-end development (30%) 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.
Key Responsibilities
  • Frontend Development: Design and build responsive, performant UIs in React (with TypeScript preferred) that allow users to configure, run, and visualize results across multiple security types.
  • Backend Development: Architect and develop scalable Spring Boot RESTful APIs and services that integrate with multiple upstream data sources and analytics systems.
  • 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 and React Testing Library / Jest, 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.).
  • 3+ years of hands-on React development experience, including component architecture, state management (e.g., Redux, Zustand, or React Query), and API integration.
  • 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 Google Cloud Platform) and CI/CD pipeline tooling (Jenkins, GitHub Actions, etc.).
  • Experience using JIRA or similar tools for Agile planning, sprint tracking, and delivery management.
  • 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.

Skills

Docker
Next.js
SQL
Shell
Spring
Spring Boot
AWS
Agile
Azure
Git
GitHub Actions
Google Cloud
JUnit
Java
Jenkins
Jest
Jira
Kafka
Kubernetes
REST
RabbitMQ
React
Redux
Testing Library
TypeScript
Vite
Zustand

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