Sr. Backend Developer

Job Title:

Sr. Backend Developer
Client:

Capco / Freddie Mac
Location:

McLean, VA (Onsite - Local candidates only)
Visa:

USC or GC only
Rate:

$60-63/hr. on C2C
Interview Process:

2 Capco interviews + in-person interview at Freddie Mac

Job Description

We are seeking a

Sr. Backend Developer

to join our team supporting Freddie Mac in McLean, VA. The ideal candidate will have strong expertise in backend development using

Java, Spring Boot, Hibernate, PostgreSQL, JUnit, and Mockito , with a proven track record of delivering scalable and high-performance enterprise applications.

Responsibilities:
Design, develop, and maintain backend services and APIs using

Java Spring Boot .
Work with

Hibernate and PostgreSQL

to build efficient data access layers.
Implement automated unit testing using

JUnit and Mockito .
Collaborate with cross-functional teams including front-end, QA, and business analysts to deliver high-quality solutions.
Participate in code reviews, design discussions, and architectural decision-making.
Troubleshoot, debug, and optimize application performance.
Ensure adherence to best practices, coding standards, and security guidelines.
Required Skills:

Strong experience in

Java, Spring Boot, Hibernate, PostgreSQL .
Hands-on experience with

JUnit and Mockito

for unit testing.
Solid understanding of software development life cycle (SDLC) and agile methodologies.
Strong problem-solving and analytical skills.
Excellent communication and collaboration skills.
Nice to Have:

Experience with

Angular

for front-end development.
Knowledge of

Kafka

for event-driven architecture.
Prior

Freddie Mac experience

is highly preferred.