Freelance Remote Java Engineer Jobs in Maryland (NOW HIRING)

Req ID: 376138
NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now.
We are currently seeking a Backend / API Engineer to join our team in Bethesda (REMOTE), Maryland (US-MD), United States (US).
Job Summary:
The Backend / API Engineer is responsible for the design, development, and maintenance of secure, scalable, and high-performance backend services and APIs that underpin the client's platform. This role is central to enabling the integration of cloud-based, IoT-enabled, and role-based access control (RBAC) functionalities required for the modernization of client's radiation exposure management. The engineer works closely with product owners, solution architects, and cross-functional development teams to implement robust backend modules supporting dosimeter data ingestion, inventory management, personnel exposure tracking, and organizational hierarchy workflows. The position requires deep technical expertise in developing RESTful APIs, microservices, and data pipelines that interface with AWS GovCloud, Greengrass IoT gateways, and secure networks. The Backend / API Engineer ensures all backend components adhere to cybersecurity, privacy, and compliance requirements, including IL4, FedRAMP, and RMF controls, and supports the implementation of DevSecOps practices for continuous integration, automated testing, and secure deployment. The engineer is responsible for maintaining comprehensive technical documentation, supporting data migration from legacy systems, and ensuring that all backend services are auditable, resilient, and aligned with the mission-critical needs of operational communities. This role is essential for delivering a unified, reliable, and secure backend infrastructure that enables client to support complex user workflows, real-time data processing, and regulatory reporting across a geographically distributed enterprise.
Job Duties:

• Design, develop, and maintain backend services and RESTful APIs for client modules, including dosimeter ingestion, inventory, and exposure tracking.
• Implement secure data pipelines and microservices that integrate with AWS GovCloud, Greengrass IoT gateways, and enterprise systems
• Ensure all backend components comply with DoD IL4, FedRAMP, RMF, and cybersecurity requirements
• Collaborate with product owners, solution architects, and frontend engineers to define API contracts and support end-to-end system integration
• Support the migration of legacy data and services into the modernized platform, ensuring data integrity and auditability
• Implement and maintain automated testing, CI/CD pipelines, and DevSecOps practices for backend codebases
• Develop and maintain technical documentation for backend services, APIs, and integration points
• Troubleshoot, optimize, and enhance backend performance, scalability, and reliability to meet operational requirements
• Participate in code reviews, security assessments, and compliance audits as required by contract and SOW
• Provide technical support for user acceptance testing, deployment, and ongoing operations of backend services

Basic Qualifications:

• Bachelor's degree in a quantitative field such as engineering or mathematics (e.g., Electrical Engineering, Computer Engineering, Computer Science, Information Technology, or Information Systems)
• Minimum 3 years of experience with software engineering
• Minimum 1 year of experience with applying programming concepts in a professional or academic setting
• Minimum 1 year of experience with applying modern software development methodologies (e.g., agile, DEVOPS/DEVSECOPS) in a professional or academic setting
• US Citizen with the ability to obtain a Secret Clearance

Preferred Qualifications:

• Experience developing backend services and APIs for cloud-based, IoT-enabled, or regulated federal systems
• Agile Developer certification or Certified Scrum Developer certification
• Proficiency in Python, Java, or similar languages used for backend and API development
• Familiarity with AWS GovCloud, Greengrass, and secure data integration in DoD environments
• Experience implementing RBAC, organizational hierarchy, and secure authentication/authorization mechanisms
• Knowledge of DoD cybersecurity, privacy, and RMF requirements for IL4/IL5 systems
• Experience with automated testing, CI/CD pipelines, and DevSecOps practices
• Strong documentation and communication skills, including the ability to produce technical specifications and API documentation
• Experience supporting data migration, legacy system integration, and operational troubleshooting in large-scale enterprise environments

NTT DATA provides a reasonable range of compensation for specific roles. The starting pay range for this remote role is $68,076 - $141,826. This range reflects the minimum and maximum target compensation for the position across all US locations. Actual compensation will depend on a number of factors, including the candidate's actual work location, relevant experience, technical skills, and other qualifications. This position may also be eligible for incentive compensation based on individual and/or company performance. If the position offered in temporary, the position will not be eligible for incentive compensation. This position is eligible for company benefits including medical, dental, and vision insurance with an employer contribution, flexible spending or health savings account, life and AD&D insurance, short and long term disability coverage, paid time off, employee assistance, participation in a 401k program with company match, and additional voluntary or legally-required benefits.
About NTT DATA
NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D.
Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client's needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in-office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com, @nttdatafed.com and @talent.nttdataservices.com email addresses. If you are requested to provide payment or disclose banking information, please submit a contact us form, https://us.nttdata.com/en/contact-us.
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