ECS is seeking a Software Engineer - Senior to work in our Crystal City, VA office. Job Description: Formulate/define specifications for complex operating software programming applications or modifies/maintains existing applications using engineering releases and utilities from the manufacture. Design, code, test, debug, and document those programs. Assist on all phases of software programming applications. Evaluate new and existing software products. Evaluate re-usability of current data for additional analyses. Conducted design/development activities in a Agile project management environment. Required Skills: HS degree + 4 years relative exp; or bachelor's with 2 years exp Must have a Top-Secret Clearance with SCI Eligibility Must have 2 years of experience in JGroovy, Grails, React, Java, JavaScript, and/or NodeJS. Micro-service & containerization experience Experience with Git Must be able to demonstrate expertise in developing in a Micro services environment. Must be able to demonstrate working knowledge of Agile Scrum methodology. Prefer AWS/Cloud experience. Strong Communication skills Desired Skills: AWS Experience/Certification (or willing to get one within 3 months of hire) Willingness to learn new skills and technologies on the fly Ability to communicate with customers to refine requirements. Ability to deconstruct customer requirements into delineated tasks. Being a team player, willing to transparently collaborate with technical SMEs. Experience with building and utilizing databases within an IT Infrastructure Experience with implementing scalability within an AWS Cloud infrastructure. Ability to evaluate new and existing software products. Experience with supporting operations and maintenance of legacy data processes leveraging MS Access, Python, VBA, Groovy, PowerShell, Power Query, and JavaScript. Ability to develop and maintain task workflow and analytic capabilities leveraging Groovy, Grails, React, Java, NodeJS, Python, Oracle, Elasticsearch and Dynamo DB. Provide operations and maintenance of on AWS platform. Ability to provide advanced mathematical/scientific software capabilities. ECS is an equal opportunity employer and does not discriminate or allow discrimination on the basis of race, color, religion, gender, age, national origin, citizenship, disability, veteran status or any other classification protected by federal, state, or local law. ECS promotes affirmative action for minorities, women, disabled persons, and veterans. ECS is a leading mid-sized provider of technology services to the United States Federal Government. We are focused on people, values and purpose. Every day, our 3000+ employees focus on providing their technical talent to support the Federal Agencies and Departments of the US Government to serve, protect and defend the American People.