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Full Stack Engineer

Company:
Kellton
Location:
Reston, VA, 20190
Posted:
June 18, 2025
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Description:

Hi

Greetings !

We are looking for Senior Full Stack Engineer for our Direct client & 100% Remote Opportunity

Below are more details on it.

Please do let me know if you/your friends would be interested/available.

Thank you

Position : Senior Full Stack Engineer

Location : Remote

Duration : 12 Months Contract

Core Responsibilities

• Design, develop, and deploy AWS cloud-based full stack applications using React and Node.js.

• Build and monitor scalable microservices with emphasis on performance, security, and reusability.

• Integrate applications with Workday using both SOAP and REST APIs.

• Ensure high data quality, process automation, and data consistency across enterprise systems.

• Create and maintain design specifications, perform unit testing, and produce technical documentation.

• Collaborate with cross-functional Agile teams and support CI/CD automation using AWS CodePipeline.

Required Technical Skills

• Advanced proficiency in React, Node.js, JavaScript (ES6).

• AWS Services: Lambda, DynamoDB, S3, SNS/SQS, IAM, CloudWatch, RDS.

• Expertise in monitoring API logs, Lambda invocations, and handling diagnostics, retries, and failures.

• CI/CD: Experience with AWS CodePipeline, CloudFormation, Bitbucket, Jenkins.

• Infrastructure as Code: CloudFormation or similar scripting tools.

• Strong OO design and architectural principles.

Workday Integration Skills

ERP/Workday Functional Knowledge

• Familiarity with Workday modules: HCM, Payroll, Financials, Procurement, Recruiting.

• Experience with Workday Studio or Eclipse-based development tools (nice to have).

• Understanding Workday-specific data and workflow structures for smooth data exchange.

SOAP API Integration

• Advanced handling of SOAP API requests/responses from AWS Lambda.

• Proficiency in WSDL parsing and usage of SoapUI, Postman for testing.

• Deep understanding of Workday SOAP patterns: Get_, Put_, Update_.

• Knowledge of WS-Security headers and OAuth bearer token authentication.

REST API Integration

• Mastery of REST API request/response processing via Lambda.

• Handling of REST features like pagination, filtering, and field expansions.

• Experience working with XML, JSON, and XSLT transformations.

Preferred Skills

• Experience in Agile teams with a collaborative, supportive mindset.

• High analytical skills and ability to build monitoring tools for frequent data services.

• Fluency in TypeScript or Python (in AWS Lambda contexts).

• Familiarity with relational and NoSQL databases.

• Appetite to learn and adopt new technologies.

Education and Certification

• Bachelor's degree or equivalent; advanced degrees preferred.

• Relevant AWS certifications

Permanent

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