Senior Full Stack Software Engineer

We have this Remote W2 Contract opportunity for a Sr Full Stack Software Engineer with our Direct Client in Reston, VA. Please let us know if this is something that interests you. Sr Full Stack Software Engineer - Req # 5926 Location: Reston, VA / Remote Max Pay Rate: $70/hr W2 (No Benefits) USC and GC only on W2 at this time Duration - 12 months + / Temp to Hire (No visa or 1099 candidates) Team: Cross Program Microservices Team Profile: Must have strong JavaScriptES6 and AWS serverless development - **Must be able to code without Agentic AI help** As a Senior Full Stack Software Engineer, candidate will be responsible for complex software development including coding, managing small sections of ongoing projects and closely adhering to deadlines. Candidate will also take responsibility for creating design specifications, unit testing, and preparing technical documentation. Candidate will ensure relationships with customers and cross-team members are professional and meet expectations. The Client - a not-for-profit membership organization dedicated to providing excellence and equity in education - manages a complex and comprehensive suite of data systems, data feeds and reports to support students and educators across multiple assessments, programs and services. Working within the Information Technology division and across the Operations and key business units, the Senior Full Stack Engineer will analyze procedures, and design and implement solutions to attain high data quality and process automation. The Senior Full Stack Engineer will design, develop, implement, and deploy AWS cloud solutions, based on a set of standards and processes which establish consistency across the enterprise data, reduce risk, and promote efficiencies in support of the organization’s goals and objectives. The ideal candidate will have designed, developed and implemented serverless software solutions in support of data quality and automation. The candidate will also possess technical skills and experience in the data management and transactional systems domains that will help their ability to design and develop elegant and efficient cloud enabled data processes and systems. Required Skills Minimum 7 years of professional software development experienceStrong hands-on experience building full-stack applications with Node.js and React.js in a cloud environmentDeep working knowledge of AWS serverless architecture (Lambda, S3, DynamoDB, SNS/SQS, Kinesis, RDS)Experience with both relational and NoSQL databasesDesign and development experience building and monitoring microservicesHands-on CI/CD experience (Jenkins or AWS CodePipeline)Strong fundamentals in OO design and computer science principlesWorking knowledge of distributed architectural design patternsKnowledge of systems analysis/design (OOAD, UML) and database designSolid grasp of SDLC and modern software engineering practices Preferred Skills Experience with event-driven architecture and stream processing patternsExposure to agentic AI / LLM-based tooling (e.g., Claude, Copilot, LangChain, or similar) for development acceleration or automationExperience with infrastructure as code (AWS CloudFormation, CDK, or similar)Fluency with KMS, ALB/ELB, Route 53, VPCExperience with GitHub-based CI/CD workflowsBackground in high-frequency data monitoring or toolingAgile/Scrum team experience with a collaborative, team-first mindsetAdditional language exposure (Java, Python) is a bonus, not a substitute for React/Node depthRelevant AWS or professional certifications Thanks and Regards, Valerian D’Cunha Lenmar Consulting Inc (a Kellton Company) 185 Hudson Street, Suite 1440, Jersey City, NJ D: 201-484-0120 F: 201-946-1790 E: vdcunha@lenmarit.com