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Senior Python​/AWS Application Developer; onsite

Job in Alexandria, Fairfax County, Virginia, 22350, USA
Listing for: System One
Full Time position
Listed on 2026-02-14
Job specializations:
  • Software Development
    AWS, Cloud Engineer - Software
Salary/Wage Range or Industry Benchmark: 100000 - 130000 USD Yearly USD 100000.00 130000.00 YEAR
Job Description & How to Apply Below
Position: Senior Python/AWS Application Developer (onsite)

Senior Python / AWS Application Developer

Washington, DC - ONSITE

Type:
Multi-year Contract

Open to W2 and C2C

US citizenship required per government contract

Must be able to obtain Public Trust clearance

As part of a team, the selected contractor will help support the development and maintenance of the Currency Data Accountability Platform (CDAP), an application utilizing AWS serverless and cloud services.

Responsibilities
  • Experience working as a developer writing Python code along with the Infrastructure as Code (IaC) required to deploy with AWS CDK.
  • Experience modeling business processes in AWS Step Functions.
  • Experience developing container-based applications, utilizing REST APIs for web-based application written with either Angular or React in Typescript.
  • Experience utilizing AWS Cloud Watch and AWS Cloud Trail for logging events and audit messages for operating in a highly regulated environment.
  • The candidate will be responsible for remediation and unit testing of code when issues arise as part of application development and deployment process.
  • Working experience with Agile development methodology and roles along with experience utilizing CI/CD for building and deploying cloud applications with the Python language for backend services and Angular front-end development is important for this role.
  • The candidate should be able to contribute to the design of the code they will be responsible for implementing along with the required documentation.
Technical Skills
  • A bachelor’s degree in Computer Science or related degree in the IT field or equivalent experience.
  • Financial industry experience is highly preferred
  • At least seven years of demonstrated programmer / analyst experience developing software according to software development lifecycle (SDLC).
  • Python
  • Angular Web UI
  • DynamoDB
  • AWS Lambda
  • AWS Step Functions
  • Angular Web UI
  • AWS CDK or Terraform
  • GIT or Git Lab
  • Docker
  • AWS Cloud Trail
  • AWS Cloud Watch
  • AWS S3
  • AWS API Gateway and Load Balancer
Benefits

System One, and its subsidiaries including Joulé, ALTA IT Services, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

Equal

Opportunity Employer

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

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Position Requirements
10+ Years work experience
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