Jobs in the United States

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Added 1 min ago
Principal Network Engineer - Routing & Switching
LEIDOS, INC.
Odenton, MD
Leidos is seeking a Principal Network Engineer specializing in routing and switching to serve as the senior technical authority for the routed and switched enterprise. The role is…
Added 1 min ago
Senior Cloud Engineer
LEIDOS, INC.
Reston, VA
Leidos is seeking an experienced Senior Cloud Engineer to join our Mission Enablement Center (MDEC) Cloud Engineering Team in Reston, Virginia. This is a hybrid position requiring regular…
Added 1 min ago
Senior DevOps Engineer
LEIDOS, INC.
Remote, United States
The Mission Enablement Center (MDEC) is seeking an experienced Senior DevOps Engineer to support its Cloud Engineering team. This hands-on position supports the design, deployment,…
Added 1 min ago
Senior Fire Protection Engineer
LEIDOS, INC.
Remote, United States
Leidos is seeking a Senior Fire Protection Engineer (with expertise in Fire Life Safety) to join the National Airspace System Integration Support Contract (NISC) team.
Added 1 min ago
Fire Protection Engineer
LEIDOS, INC.
Worcester, MA · Chicago, IL · Houston, TX
Leidos is seeking a Fire Protection Engineer (with expertise in Fire Life Safety) to join the National Airspace System Integration Support Contract (NISC) team.
Added 1 min ago
Network Engineer III
LEIDOS, INC.
Huntsville, AL · Las Cruces, NM · Merritt Island, FL · Stennis Space Center, MS · Houston, TX · Greenbelt, MD · Hampton, VA · Mountain View, CA · Wallops Island, VA · Cleveland, OH · Washington, DC
Provide technical leadership in the configuration, integration, and optimization of Cisco Identity Services Engine (ISE) to enforce Network Access Control (NAC) policies across wired and…
Added 1 min ago
Data Scientist
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…working "fingers-on-keyboard" to solve the command's most complex technical…
Added 1 min ago
Principal Network Engineer - Wireless
LEIDOS, INC.
Odenton, MD
Leidos is seeking a Principal Network Engineer – Wireless to lead engineering, deployment, and modernization of a large-scale, geographically distributed enterprise wireless network…
Added 7 mins ago
RU
Senior Full Stack Engineer (Java / Angular)
Randstad USA
Washington, DC
- $55 USD / hour
Randstad is seeking a Senior Full Stack Engineer to join our high-impact client team in the Washington, D.C. metro area, supporting mission-critical enterprise operations applications. In…
Added 8 mins ago
Senior Software Engineer
THERMOWORKS INC
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Take software features from requirements and implementation through unit, integration, and product testing; maintain clear technical documentation.
Added 9 mins ago
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Forward Deployed Engineer
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- $110,000 to $120,000 USD / year
Luv Bridal is seeking an exceptional Forward Deployed Engineer to join our technology team and help build the next generation of applications, integrations, data products, automations, and…
Added 9 mins ago
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Sensor Technology Engineer
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- $209,700 to $238,250 USD / year
This role sits at the intersection of sensor technology, vehicle integration and autonomous-driving performance, with responsibility for taking defined sensor topics from analysis through…
Added 14 mins ago
Lead Space System Engineer
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Melbourne, FL · Woburn, MA
As the system engineer, you will collaborate closely with program leadership and external partners to establish and execute the program’s objectives, requirements, and development plan. You…
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Lead Space System Engineer
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As the system engineer, you will collaborate closely with program leadership and external partners to establish and execute the program’s objectives, requirements, and development plan. You…
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Lead Data Analytics Engineer
Cedar Rapids, IA · Denver, CO · Philadelphia, PA
Provides technical leadership in the design, development, and delivery of enterprise analytics and reporting solutions. Partners with business and technology teams to translate complex data…
Added 15 mins ago
Sr. GNC Engineer / Modeling & Simulation
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Added 16 mins ago
Principal Embedded Software Engineer
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Added 16 mins ago
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Software Engineer Full Stack / Backend I (Full Time) - United States
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- Full-time
…Cloud Operations strategy! We champion a collaborative, highly technical, and encouraging culture where engineers thrive under leadership that actively champions mentorship and long-term…
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Software Engineer – Release Management
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We are seeking a motivated Engineer to join our Release team in Research Triangle Park (RTP), North Carolina, helping us improve software project infrastructure and product quality for…
Added 19 mins ago
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Sunward Steel Buildings is a family-owned, American manufacturer, that has been in business for over 50 years. We sell, engineer, and manufacture custom metal buildings, including…
Added 19 mins ago
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Robotics Software Engineer
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Added 19 mins ago
Senior Software Engineer
Mastercard
O Fallon, MO
We are currently seeking a Senior Software Engineer to join the Mastercard Operational Reports NexGen development team to work on Enterprise Applications to deliver technical solutions…
Added 19 mins ago
Software Engineer II
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…We work collaboratively with our product partners and other technical teams to continuously improve and enhance our existing products and drive new products to the global…
Added 26 mins ago
Principal Software Development Engineer (AI Innovation)
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Added 27 mins ago
Operations Manager
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Provide on-site support for ESA, Design Site Visits, Kickoffs, Inspections and Integration visits, as required

Randstad USA

Senior Full Stack Engineer (Java / Angular)

Washington, DC, United States

$55 USD / hour · Contract

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Job details

Pay: $55 USD / hour
Job type: Contract
Apply by: Dec 4, 2026
Experience: Professional Experience: 5+ years of production experience in backend software engineering with a demonstrable secondary focus in modern frontend development.
Posting language: English
Posted: Nov 5, 2026

Original job description

job summary:

Randstad is seeking a Senior Full Stack Engineer to join our high-impact client team in the Washington, D.C. metro area, supporting mission-critical enterprise operations applications. In this role, you will be the core technical driver behind high-throughput backend services and modern web interfaces, with work weighted approximately 75-80% toward backend distributed architecture (Java 17/21, Spring Boot, Apache Kafka, PostgreSQL) and 20-25% toward responsive frontend features in Angular. You will design fault-tolerant microservices, implement event-driven architectures, streamline CI/CD pipelines on AWS, and deliver intuitive tools that optimize operational workflows across the organization.

location: Washington, Washington, D.C. job type: Contract work hours: 9am to 5pm education: Bachelors

responsibilities:

Backend & API Development: Design, build, and maintain high-performance Spring Boot microservices (Java 17/21) exposing robust REST and reactive endpoints.

Event-Driven Architecture: Architect messaging pipelines using Spring Kafka, handling message ordering, retries, dead-letter topics (DLTs), idempotency, and schema evolution over time.

Data Modeling & Batch Workloads: Model, query, and optimize relational data using Spring Data JPA, Hibernate, and PostgreSQL, and engineer complex background data jobs with Spring Batch.

System Resilience & Security: Implement circuit breakers, rate limiting, and fallback patterns using Resilience4j; enforce enterprise security standards with Spring Security, OAuth2, JWT, and AWS Secrets Manager.

Frontend Delivery: Build and maintain performant, accessible UI features using Angular (v15+), TypeScript, and RxJS (accounting for ~20-25% of development time).

Testing & Quality Assurance: Write unit and integration suites using JUnit 5 and Spring Boot Test, while collaborating on automated end-to-end testing with Playwright.

DevOps & Cloud Ownership: Containerize microservices using Docker, configure automated CI/CD workflows via GitHub Actions and AWS CodeBuild, and manage cloud workloads in AWS.

Technical Leadership: Conduct rigorous architecture and code reviews, establish engineering standards, mentor junior developers, and assist in production incident resolution.

qualifications:

Professional Experience: 5+ years of production experience in backend software engineering with a demonstrable secondary focus in modern frontend development.

Core Backend Stack: Deep proficiency with Java (17 or 21), the Spring ecosystem (Spring Boot, Spring Security, Spring Data), and relational databases (PostgreSQL).

Messaging & Streaming: Hands-on experience developing event-driven systems using Apache Kafka or AWS MSK, including practical handling of DLTs, idempotency, and consumer group rebalancing.

Frontend Competence: Practical experience building single-page applications with Angular (v15+), TypeScript, RxJS, and modern CSS/UI libraries (Tailwind CSS, PrimeNG, or Angular Material).

Resilience & Testing: Proven background implementing fault-tolerance patterns (Resilience4j) and writing comprehensive automated tests (JUnit 5, Spring Boot Test).

Cloud & Containers: Experience deploying containerized workloads (Docker) within AWS environments using standard CI/CD tools (GitHub Actions, CodeBuild).

Education: Bachelor's degree in Computer Science, Software Engineering, or a related technical discipline, or equivalent practical industry experience.

Equal Opportunity Employer: Race, Color, Religion, Sex, Sexual Orientation, Gender Identity, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status.

At Randstad Digital, we welcome people of all abilities and want to ensure that our hiring and interview process meets the needs of all applicants. If you require a reasonable accommodation to make your application or interview experience a great one, please contact HRsupport@randstadusa.com.

Pay offered to a successful candidate will be based on several factors including the candidate's education, work experience, work location, specific job duties, certifications, etc. In addition, Randstad Digital offers a comprehensive benefits package, including: medical, prescription, dental, vision, AD&D, and life insurance offerings, short-term disability, and a 401K plan (all benefits are based on eligibility).

This posting is open for thirty (30) days.

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More about this job

Skills

Oracle Java
Spring Boot
Apache Kafka
PostgreSQL
Microservices
CI/CD
AWS
API development
Data modelling
Security regulations
TypeScript
Quality assurance
JUnit
DevOps
Docker
GitHub
Leadership
Front-end development
CSS
Computer science

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