Senior Java Backend Developer
Argyle Infotech
Senior Java Backend Developer
Location: McLean, VA (Onsite – In-Person Interview Required) Duration: Contract (July 20, 2026 – December 31, 2026) Position Type: Contract (C2C) Work Authorization: Open to sponsored candidates through one-layer-deep sub-vendors only. Candidates must be W2 employees of the sub-vendor.
Job Summary: We are seeking a highly experienced Senior Java Backend Developer to join the Loan Portfolio Management and Structuring (LPMS) team supporting Freddie Mac's Investments & Capital Markets (I&CM) division. The ideal candidate will have extensive experience in Java backend development, SQL, database migration, and cloud-based data platforms. This role involves modernizing legacy applications, migrating data to new platforms, and collaborating with multiple technology teams to support critical business initiatives. Candidates with prior experience supporting Freddie Mac or Fannie Mae environments are highly preferred.
Required Skills
- 10+ years of hands-on experience in Java development (Java 11+)
- Strong expertise in Spring Boot and backend application development
- Extensive experience writing and optimizing complex SQL queries
- Strong experience with relational databases such as MSSQL, DB2, and Sybase
- Experience with PostgreSQL
- Experience working with GraphQL
- Hands-on experience with Snowflake
- Experience supporting database migration and data modernization initiatives
- Knowledge of Angular-based applications
- Experience with FitNesse testing framework
- Familiarity with PING Authentication
- Experience with GitHub, Bitbucket, Gradle, Docker, Jira, and Selenium
- Excellent analytical, troubleshooting, and communication skills
Preferred Qualifications
- Previous experience working with Freddie Mac or Fannie Mae
- Experience in financial services, mortgage, or capital markets domain
- Bachelor's degree in Computer Science, Information Technology, or equivalent experience (Master's degree preferred)
Key Responsibilities
- Analyze and convert complex SQL queries from MSSQL and DB2 to modern data platforms.
- Enhance and maintain Java Spring Boot and Angular applications supporting business-critical systems.
- Support migration of applications and data to Snowflake and other modern data sources.
- Develop, update, and execute FitNesse test suites to validate application functionality.
- Collaborate with business and technology teams to ensure successful implementation of migration initiatives.
- Optimize SQL performance and improve backend application efficiency.
- Participate in deployment, testing, and production support activities.
- Work independently to design, develop, troubleshoot, and deliver high-quality technical solutions.
Interview Process
- One round (60 minutes)
- In-Person Interview
- Interviews targeted for the week of July 6, 2026
Additional Information
- Candidates submitted with technical assessments will be given preference.
- Strong communication skills and the ability to collaborate with cross-functional teams are essential.
Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the Senior Java Backend Developer in McLean, VA vacancy
- ...Overview: Position Title * Sr. Backend Java Developer Position Responsibilities Role: Senior Backend Java Developer Location: McLean, VA - Onsite (5 days/week) | Local candidates only Key Responsibilities Design, build, and maintain backend services...SeniorLocal area
Guru Schools
McLean, VA3 days ago - ...Java Developer PLEASE NOTE: This is a 100% onsite position in McLean, VA or Plano, TX. Candidates located in either of these locations will be considered. JOB DESCRIPTION: We are seeking an experienced Java Developer to design, develop, and support modern enterprise...Senior
Omm IT Solutions
McLean, VA2 days ago - ...Java Developer The resource performs high complexity (i.e. system level applications) analysis, design, development and unit testing of software applications from user requirements/stories and design documents. The candidate also resolves defects encountered during...Suggested
Samprasoft
McLean, VA5 days ago - Hilton is seeking a Software Engineer to design and develop scalable payments microservices using Java and Spring Boot. The role requires building RESTful APIs, CRUD operations, and data handling with MySQL, while applying TDD with JUnit and Cucumber. You will collaborate...SeniorRemote job
$85k - $127k
...contributes to a greater purpose. Position Overview: The Developer will support the Enterprise Decision Service (EDS)... ...certification in the following technologies: J2EE, Java, Web Development and SQL. This is Java backend focused role. Position requires strong analytical...SuggestedFull timeLocal areaFlexible hours$100k - $130k
...Senior Java Full Stack Developer Location: Sunrise, FL/Tampa, FL/McLean, VA Fulltime Salary Range: $100,000-$130,000/Year Job Title: Senior Java Full Stack Engineer Experience Required - 6+ Years Roles & Responsibilities Need candidates who have at least 6...SeniorFull timeDiverse Lynx
McLean, VA2 days ago- ...Position Summary : Title: Senior Full Stack Java Developer Duration: 6 Months - Long Term Location: Mclean, VA 22102 100% Onsite - M-F per week from day1 Client needs a senior full stack developer to support growing business...SeniorFlexible hours
Mindlance
McLean, VA2 days ago - 12+ years of hands-on Core Java development experience (Java 8 or higher) Strong experience with Spring Boot, Microservices, and design patterns Ability to deliver complete end-to-end projects Must have strong experience with AWS services (S3, SQS, SNS, ECS, Lambda, CloudWatch...Senior
- A leading consulting company is looking for a Java Full Stack Developer in McLean, VA. You will be responsible for developing and updating applications while leading technical efforts. Candidates should have a Bachelor's degree, 4+ years of experience, and extensive knowledge...SeniorFull time
- ...Architect in Arlington, Virginia, to define, design, and govern end-to-end technical solutions. The role involves architecting robust Java-based systems, integrating AI features, and leveraging AWS services for cloud solutions. Candidates should have over 8 years of...Senior
- Horizon Technologies Inc. is seeking a Selenium Tester with Java experience to lead testing initiatives. The ideal candidate will have... ...of experience with Selenium and be comfortable working with developers and management. Your responsibilities will include developing Master...Senior
- ...Arlington, Virginia is seeking a Software Architect to lead the design of technical solutions for enterprise platforms. The role emphasizes Java-based systems and AI integration, requiring collaboration with engineering and product teams. Candidates should have extensive cloud...Senior
- ...engineering or equivalent experience A minimum of 9+ years of developer experience Solid understanding of typical multi-tier architectures... .... Design and develop Micro Services based solutions using Java/JEE frameworks, UI frameworks, Docker and Kubernetes/EKS. Work...Senior
- ...Currently, we are looking for qualified entry-level Data Scientists who can apply Data Science principles to design, test, implement, and develop data-based solutions, including reporting, auditing, and preparing large databases for statistical analysis. Minimum Background...Part timeH1bRelocationFlexible hours
SynergisticIT
Washington DC4 days ago $100k
...competitive advantage see us exhibiting at Oracle Cloud World/Oracle Java One (Las Vegas) -2023/2022 and at Gartner Data Analytics Summit... ...looking for entry-level software programmers, Java full-stack developers, Python/Java developers, Data analysts/ Data Scientists, and...Full timeH1bSynergisticIT
Washington DC5 days ago$137k - $200.2k
MAXAR TECHNOLOGIES, INC. is seeking an experienced API/Java/Python Developer to join its team in Washington, DC. The role focuses on developing high-performance, API-driven services, ensuring secure coding practices, and collaborating with multidisciplinary teams to implement...Senior- ...I have an opportunity for "Senior Java Full Stack Developer" and looking for a candidate who can join Immediately if you are interested reply me with... ...hands on experience with frontend (ReactJS), backend (Spring framework) and database technologies. Additionally...SeniorImmediate start
Navtech
Potomac, MD2 days ago - ...Support the integration and user acceptance testing of the systems. 8 to 10 Years Experience Must have Java development experience with ability to develop unit / integration test cases using Junit /TestNg. Must have ability to understand and work with code...Senior
Samprasoft
Washington DC5 days ago - Leidos Inc in Bethesda, MD is seeking a Principal Java Developer to join our Intel Security Analysis Solutions team. You will contribute... ...full software lifecycle. Design and implement high-performance backend microservices with Java/Spring, participate in architecture,...Senior
- Unisys in McLean, VA 22102 is seeking a Senior Java Full Stack Developer (Frontend 70%, Backend 30%). Onsite five days a week, you will design responsive React UIs and build scalable Spring Boot REST APIs to support risk analytics and data integration. You will work across...Senior
- ...Java Architect V DISYS is seeking a Java Architect V as part of the Enterprise Innovation Team. This resource will be working in a collaborative environment to conduct and participate in technical and functional evaluations. They will also be responsible for facilitating...SeniorRemote work
Software Technology Inc
Herndon, VA4 days ago - ...maintaining test automation frameworks using Playwright, Cucumber, Java, Maven, and Jenkins, along with a deep understanding of... ...effective project organization and communication • Experience in developing and maintaining automated test scripts using Playwright (TypeScript...SeniorLocal area
Omni Inclusive
McLean, VA3 days ago - An established industry player is seeking a seasoned developer to join their innovative team. This role involves designing and developing... ...solutions, working with cutting-edge technologies such as Java and Spring Boot, and contributing to agile software development...Senior
- TryApplyNow is seeking a Senior Full Stack Developer in McLean, Virginia, with a focus on Java, React, and TypeScript. The role requires 5+ years of experience, emphasizing... ...front-end development and integration with backend services. Candidates should be comfortable...SeniorFull time
- Aktra is seeking a Senior Full Stack Developer located in McLean, Virginia. The role emphasizes strong Java expertise and hands-on engineering across the software lifecycle. Responsibilities include designing, developing, and maintaining scalable applications. Required...Senior
- A leading technology company is seeking a Principal Java Developer in Bethesda, Maryland. The role involves Agile development and operations for mission-critical systems, requiring expert knowledge in Java and cloud platforms like AWS. Candidates should have extensive...Senior
- TryApplyNow is looking for a Senior Java Full Stack Developer in McLean, VA, to support a strategic Finance and Model Analytics initiative focused on mortgage portfolio analytics. The candidate will design, develop, and support a full-stack financial application working...SeniorRemote job
- ...Python Backend Developer Location: Hybrid onsite (3 days onsite in Mclean, VA) Duration: 9-12+ months Contract Job Description:... ...Experience with DBs- Oracle/DB2/Mongo/SQL Server/NoSQL Java experience is nice to have Exposure with Python programming...Contract work
Samprasoft
McLean, VA5 days ago - IntraFi LLC in Arlington, Virginia is seeking a Database Engineer to lead SQL installations, manage databases, and drive innovation in financial services. Ideal candidates have extensive experience in PL/SQL and AWS, along with a solid understanding of ETL processes. This...SeniorFlexible hours
- ...Senior Java Developer Location: Bethesda, MD (Hybrid) Client: Marriott Visa: H1B, EAD, GC, USC Duration: Long Term Mandatory: Minimum 10+ years experience, Java/J2EE, SpringBoot, JavaScript, API, Gateway, EKS, Harness, swagerHub, Python and microservices...SeniorH1b
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Java Backend Developer. Be the first to apply!
Related searches
- lead full stack java developer McLean, VA
- java microservice developer McLean, VA
- full stack java developer McLean, VA
- sr.java developer McLean, VA
- entry level java developer remote McLean, VA
- senior java developer McLean, VA
- java web developer McLean, VA
- java spring developer McLean, VA
- java developer remote part time McLean, VA
- remote junior java developer McLean, VA