back-end software engineer

job summary: Bachelor's degree in Computer Science, Engineering, Information Technology or equivalent, with a preference for advanced study 10+ years of IT experience as a developer You are proficient in Java, Springboot, REST services, and have exposure to cloud technologies such as AWS or Microsoft Azure JavaScript skills are a plus. Preferred knowledge on ag grid. Preferred knowledge on JEST unit testing framework. You are experienced in modern web application packaging and deployment using Yeoman, Grunt / Gulp is a huge plus. You are experienced with Ant/Maven, Nexus, Git/Jenkins or NPM is highly preferred You have expertise in dealing with large amount of data in real-time applications with big-data technologies such as KDB/Q or similar Experience working in an Agile Environment, with a strong preference for Scrum certifications Previous exposure to trading systems or brokerage technology is strongly preferred Having excellent analytical, communication, and organizational skills and the ability to run with multiple tasks at a given time Familiarity with event driven and service-oriented processing is desired Demonstrated work experience with cloud technologies. Industry certifications are welcome, but hands on experience and expertise are better    location: Hoboken, New Jersey job type: Contract salary: $79 - 80 per hour work hours: 8am to 5pm education: Bachelors   responsibilities: You are proficient in Java, Springboot, REST services, and have exposure to cloud technologies such as AWS or Microsoft AzureJavaScript skills are a plus.Preferred knowledge on ag grid.Preferred knowledge on JEST unit testing framework.You are experienced in modern web application packaging and deployment using Yeoman, Grunt / Gulp is a huge plus.You are experienced with Ant/Maven, Nexus, Git/Jenkins or NPM is highly preferredYou have expertise in dealing with large amount of data in real-time applications with big-data technologies such as KDB/Q or similar   qualifications: BS or Master's in Computer Science, Engineering, or Mathematics 8+ years of technology experience in the development and implementation of software solutions in highly scalable environments with focus on financial technologies particularly electronic trading. Successful technology and business solutions engineer with experience leading highly skilled teams Proven experience in high-volume, low latency real-time messaging applied to electronic trading Comprehensive experience in overall end-to-end Software Engineering in an agile environment Ability to help clarify user requirements and define accurate use cases Proven hands-on development skills with technology leadership Ability to translate business needs into technology solutions   skills: Analytical Thinking,Communication Skills,Event-Driven Programming,Coordination Skills Equal Opportunity Employer: Race, Color, Religion, Sex, Sexual Orientation, Gender Identity, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status.At Randstad Digital, we welcome people of all abilities and want to ensure that our hiring and interview process meets the needs of all applicants. If you require a reasonable accommodation to make your application or interview experience a great one, please contact HRsupport@randstadusa.com. Pay offered to a successful candidate will be based on several factors including the candidate's education, work experience, work location, specific job duties, certifications, etc. In addition, Randstad Digital offers a comprehensive benefits package, including: medical, prescription, dental, vision, AD&D, and life insurance offerings, short-term disability, and a 401K plan (all benefits are based on eligibility). This posting is open for thirty (30) days.

job summary: Randstad, in partnership with a major client, is seeking a Senior Principal Mobile & Cloud Full-Stack Engineer to drive the design and development of next-generation, mobile-first, cloud-native applications for operational and passenger systems. This is a high-impact, hybrid role based in the DC area, requiring expertise across Native iOS (Swift/SwiftUI) and Android (Kotlin/Jetpack Compose), combined with robust skills in building Back-End for Front-End (BFF) microservices using Java/Spring Boot or NodeJS running on AWS ECS Fargate and Lambda. Operating within a SAFe Agile framework, you will be crucial in defining architecture, managing containerized services, implementing CI/CD with tools like Bitrise and AWS CodePipeline, and ensuring secure, scalable data integration using Kafka/Kinesis, Aurora PostgreSQL, and DynamoDB. Candidates must be prepared for a hybrid schedule, including travel to DC for key SAFe ceremonies (like PI Planning) and maintaining camera-on during virtual team collaboration to embrace agile self-management and self-organization.    location: Washington, Washington, D.C. job type: Contract salary: $75 - 85 per hour work hours: 9am to 5pm education: Bachelors   responsibilities: Native Mobile Development: Design and develop high-performance native applications for iOS (Swift/SwiftUI) and Android (Kotlin/Jetpack Compose), including extensions for Apple Watch and Wear OS.Security & Authentication: Implement integration with enterprise identity providers, including AWS Cognito, MSAL (Azure AD), and other SSO solutions.Edge Computing & Offline-First: Build features leveraging peer-to-peer APIs, indoor wayfinding (CoreLocation/ARKit), and on-device intelligence (BNNS/NNAPI), while optimizing for low-bandwidth and offline environments.BFF Architecture: Architect and develop mobile-optimized BFF microservices using Spring Boot (Java 21+) or NodeJS (22+) deployed on AWS ECS Fargate.Data Aggregation: Shape and aggregate data from multiple enterprise sources (MuleSoft, Oracle, SQL Server) into mobile-specific APIs using GraphQL, REST, or AppSync patterns.Cloud Microservices: Develop and maintain event-driven and real-time workflows using AWS Lambda (NodeJS/Java), managing hybrid persistence with Aurora PostgreSQL, DynamoDB, and Redis.Enterprise Integration: Implement routing, transformation, and integration logic using Apache Camel with messaging services like Kafka, Kinesis, SQS, and SNS.DevOps & CI/CD: Manage, maintain, and automate build/deployment pipelines using AWS CodeBuild/CodePipeline and Bitrise for native apps, defining infrastructure using CloudFormation/CDK or Terraform.Agile & SAFe Collaboration: Actively participate in all SAFe ceremonies (PI Planning, retrospectives, etc.), embrace self-management for iteration commitments, and collaborate across Product, Architecture, and Middleware teams.Monitoring & Observability: Design and implement secure, observable, and scalable cloud architectures using AWS CloudWatch/CloudTrail/X-Ray, with preference for experience in Dynatrace.   qualifications: Experience Level: 7+ years in full-stack engineering, with a strong focus on both native mobile and cloud backend development. Languages & Frameworks: Expert-level proficiency in Swift, Kotlin, TypeScript, Java 21+, and SQL. Experience with SwiftUI, Jetpack Compose, Spring Boot, and ExpressJS/NestJS. Cloud Expertise (AWS Focus): Deep hands-on experience with core AWS services, including ECS Fargate, Lambda, API Gateway, Cognito, SQS/SNS, Kinesis, Aurora PostgreSQL, and DynamoDB. Integration & Messaging: Practical experience with Apache Camel, and stream processing/messaging via Kafka or AWS Kinesis. DevOps & Infrastructure-as-Code (IaC): Proven ability to implement CI/CD for native apps (e.g., Bitrise, AWS CodePipeline) and define cloud infrastructure using CloudFormation/CDK or Terraform. Agile Proficiency: Demonstrable experience working in a SAFe or similar scaled Agile environment, including capacity planning and self-organization. Preferred Experience: Familiarity with Intune MDM, enterprise mobility management, and low-latency, offline-first design patterns. Soft Skills: Strategic, mobile-first thinker; excellent communicator; detail-oriented; and highly collaborative within large, multi-disciplinary teams. Work Arrangement: Must be willing to work in a hybrid capacity and travel to the DC area on an as-needed basis, particularly for critical SAFe ceremonies. Equal Opportunity Employer: Race, Color, Religion, Sex, Sexual Orientation, Gender Identity, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status.At Randstad Digital, we welcome people of all abilities and want to ensure that our hiring and interview process meets the needs of all applicants. If you require a reasonable accommodation to make your application or interview experience a great one, please contact HRsupport@randstadusa.com. Pay offered to a successful candidate will be based on several factors including the candidate's education, work experience, work location, specific job duties, certifications, etc. In addition, Randstad Digital offers a comprehensive benefits package, including: medical, prescription, dental, vision, AD&D, and life insurance offerings, short-term disability, and a 401K plan (all benefits are based on eligibility). This posting is open for thirty (30) days.

job summary: A remote contract position for a Senior Software Engineer in AI Foundational Services, focusing on developing scalable, AI-powered platforms with expertise in LLM integration, vector databases, and cloud-native technologies. The role involves building intelligent systems such as conversational AI, RAG workflows, and multi-agent orchestration to drive innovation across next-generation products.    location: , job type: Contract to Perm salary: $80 - 85 per hour work hours: 9am to 5pm education: Bachelors   responsibilities: 1. Build and maintain scalable backend services and AI pipelines, including RAG workflows, embedding processes, and agentic orchestration. 2. Integrate LLM platforms and vector stores to develop intelligent, conversational systems and virtual agents. 3. Collaborate with cross-functional teams to ensure high-quality, secure code delivery while contributing to CI/CD pipelines and Agile development processes.   qualifications: 1. Over 5 years of experience in integrating LLMs and developing full-stack AI applications using Node.js, MongoDB, Angular, and cloud platforms like AWS or Azure. 2. Proven expertise in working with vector databases, embedding models, and semantic search technologies. 3. Strong understanding of CI/CD practices, DevOps, and Agile methodologies to deliver secure and high-quality software solutions. Equal Opportunity Employer: Race, Color, Religion, Sex, Sexual Orientation, Gender Identity, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status.At Randstad Digital, we welcome people of all abilities and want to ensure that our hiring and interview process meets the needs of all applicants. If you require a reasonable accommodation to make your application or interview experience a great one, please contact HRsupport@randstadusa.com. Pay offered to a successful candidate will be based on several factors including the candidate's education, work experience, work location, specific job duties, certifications, etc. In addition, Randstad Digital offers a comprehensive benefits package, including: medical, prescription, dental, vision, AD&D, and life insurance offerings, short-term disability, and a 401K plan (all benefits are based on eligibility). This posting is open for thirty (30) days.