Software Engineer II

Serco; Herndon (VA); On-site; USD 95,000 - 140,000; Full time

Job summary

Serco is seeking a Full Stack Software Engineer in Herndon, VA to design, build, test, and maintain full stack applications, including APIs and AI-powered features using AWS Bedrock. You will work in a collaborative team to translate requirements into scalable software and integrate AI models into microservices and frontends.

You should have a Bachelor’s degree with 2-4 years of experience, strong Java/Spring/Hibernate skills, and hands-on experience with Docker, AWS services, and REST/SOAP/RPC

Qualifications

• Bachelor's degree and 2-4 years of experience.
• US Citizenship.
• Proficient with Java, Spring, Hibernate.
• Hands-on with microservices: Springboot, Quarkus, etc.
• Experience with REST, SOAP, RPC APIs.
• GIT, Maven, and modern IDEs (Eclipse/IntelliJ).
• Container tech: Docker, ECS; AWS services (S3, Lambda, EventBridge, SQS, CloudWatch).
• Building APIs/microservices and AI-powered web apps; serverless workflows.
• Knowledge of AI concepts: LLMs, Prompt Engineering, RAG.

Responsibilities

• Design, develop and maintain full stack applications (frontend, backend, APIs).
• Support and/or install software applications/OS.
• Participate in testing and certification of software.
• Provide technical support to project teams.
• Demonstrate expertise across multiple domains and technologies.
• Design and implement AI-powered features using AWS Bedrock.
• Build and maintain retrieval-augmented generation pipelines.
• Integrate AI models into microservices and APIs.
• Assist in evaluating and improving model outputs.

Skills

Java

Spring

Hibernate

Spring Boot

Quarkus

REST APIs

SOAP

RPC

Git

Maven

Eclipse/IntelliJ

Docker

ECS

AWS

AWS Lambda

S3

EventBridge

SQS

CloudWatch

Python

LLMs

Prompt Engineering

AI APIs

Serverless

Nodes.js

Education

Bachelor's degree

Tools

Spring Boot

Quarkus

ECS

Docker

AWS

Node.js

Python

LLM APIs

Job description

Position Description & Qualifications

Serco supports CMS, a federal agency within the United States Department of Health and Human Services that administers the Medicare program and works in partnership with state governments to continue supporting eligibility determinations for consumers purchasing health insurance through the Federal Health Insurance Exchanges. As a Full Stack Software Engineer, you will be responsible for designing, testing, planning, implementing, protecting, operating, managing and maintaining applications.

In This Role, You Will

• Design, develop and maintain full stack applications (frontend, backend, APIs)
• Support and / or install software applications/operating systems.
• Participate in the testing process through test review and analysis, test witnessing and certification of software.
• Provide technical support to project team members.
• Demonstrate expertise in a variety of fields, concepts, practices, and procedures.
• Design and implement AI-powered features using LLMs via AWS Bedrock
• Build and maintain retrieval-augmented generation (RAG) pipelines
• Integrate AI models into microservices and APIs
• Assist in evaluating and improving model outputs
• Experience with Python for AI/ML or API development
• Basic experience with LLMs, prompt engineering, or AI APIsA wide degree of creativity and latitude is expected.
• May report to an executive or a manager.

To be successful in this role, you will have:

• A Bachelor`s degree and 2-4 years of experience.
• US Citizenship.
• Intermediate to advanced knowledge of Java, relevant open-source frameworks like Spring, Hibernate.
• Hands on experience on microservices framework like Springboot, Quarkus, etc.
• Analyze and troubleshoot application issues in a timely fashion.
• Enthusiasm for software development, innovation, and a desire to work in a great team atmosphere.
• Familiarity with architecture styles/APIs (REST, SOAP, RPC).
• Experience with GIT, Maven, and modern IDE’s (Eclipse/IntelliJ).
• Hands on experience on Container Technologies (like Docker, Podman), Container Orchestration Technologies like ECS, etc.
• Hands-on experience working on AWS Technologies such as S3, Lambda, EventBridge, SQS, AWS Batch, CloudWatch, etc.
• Building APIs or microservices.
• Creating AI-powered web apps (chatbots, dashboards).
• Working with serverless functions (e.g., AWS Lambda in Node.js).
• Integrating AI into frontend/backends.
• Familiarity with AI concepts like Models, Prompt Engineering, RAG, Agentic AI, GPT, etc.

Additional Desired Experience And Skills

• AWS Certification.
• Understanding of Agile/SAFe methodologies.
• Knowledge on AWS Bedrock, Python, Sagemaker, and related tools are preferred.

Company Overview

Serco Inc. (Serco) is the Americas division of Serco Group, plc. In North America, Serco’s 9,000+ employees strive to make an impact every day across 100+ sites in the areas of Defense, Citizen Services, and Transportation. We help our clients deliver vital services more efficiently while increasing the satisfaction of their end customers. Serco serves every branch of the U.S. military, numerous U.S. Federal civilian agencies, the Intelligence Community, the Canadian government, state, provincial and local governments, and commercial clients. While your place may look a little different depending on your role, we know you will find yours here. Wherever you work and whatever you do, we invite you to discover your place in our world. Serco is a place you can count on and where you can make an impact because every contribution matters.

To review Serco benefits please visit: https://careers.serco-na.com/us/en/what-we-offer. If you require an accommodation with the application process please email: [e-mail] or call the HR Service Desk at 800-628-6458, option 1. Please note, due to EEOC/OFCCP compliance, Serco is unable to accept resumes by email.

Candidates may be asked to present proof of identify during the selection process. If requested, this will require presentation of a government-issued I.D. (with photo) with name and address that match the information entered on the application. Serco will not take possession of or retain/store the information provided as proof of identity. For more information on how Serco uses your information, please see our Applicant Privacy Policy and Notice.

Serco does not accept unsolicited resumes through or from search firms or staffing agencies without being a contracted approved vendor. All unsolicited resumes will be considered the property of Serco and will not be obligated to pay a placement or contract fee. If you are interested in becoming an approved vendor at Serco, please email [e-mail].

Serco is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, veteran status, and other legally protected characteristics.

Pay Transparency

Our Total Rewards package includes competitive pay, performance-based incentives, and benefits that promote well-being and work-life balance—so you can thrive both professionally and personally. Eligible employees also gain access to a wide range of benefits from comprehensive health coverage and health savings accounts to retirement plans, life and disability insurance, and time-off programs that support work-life balance. Program availability may vary based on factors such as contract type, location, hire date, and applicable collective bargaining agreements.

Salary range: The range for this position can be found at the top of this posting. This range is provided as a general guideline and represents a good faith estimate across all experience levels. Actual base salary will be determined by a variety of factors, including but not limited to, the scope of the role, relevant experience, job-related knowledge, education and training, key skills, and geographic market considerations. For roles available in multiple states, the range may vary to reflect differences in local labor markets. In addition to base salary, eligible positions may include other forms of compensation such as annual bonuses or long-term incentive opportunities.

• Medical, dental, and vision insurance
• Robust vacation and sick leave benefits, and flexible work arrangements where permitted by role or contract
• 401(k) plan that includes employer matching funds
• Tuition reimbursement program
• Life insurance and disability coverage
• Optional coverages that can be purchased, including pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection
• Birth, adoption, parental leave benefits
• Employee Assistance Plan

To review all Serco benefits please visit: https://careers.serco-na.com/us/en/about-us.

Serco complies with all applicable state and local leave laws, including providing time off under the Colorado Healthy Families and Workplaces Act for eligible Colorado residents, in alignment with our policies and benefit plans.

The application window for this position is for no more than 60 days. We encourage candidates to apply promptly after the posting date, as the position may close earlier if filled or if the application volume exceeds expectations.