7 results for Software Engineer Test Sdet Java Backend in Washington, DC

Senior Software Engineer

Gaithersburg, MD
onsite
Temporary
88 - 93 USD / Hourly
Robert Half is seeking a Senior Software Engineer with AI‑enabled development experience to support the modernization of a real-time, high-availability air traffic management platform. This role offers the opportunity to work on safety-critical systems that directly support national airspace operations in a collaborative, mission-driven environment.You will contribute to the development and sustainment of complex software systems using both traditional systems engineering practices and AI‑augmented development techniques throughout the Software Development Life Cycle (SDLC). Key Responsibilities:<ul><li>Design, develop, test, and maintain software for real-time, high-availability systems</li><li>Apply AI-assisted development tools to accelerate coding, refactoring, debugging, and automated test generation</li><li>Utilize AI responsibly across the full SDLC including:</li><li>Requirements analysis</li><li>System design</li><li>Implementation</li><li>Testing</li><li>Documentation</li><li>Code review</li><li>Analyze complex system requirements and translate them into efficient, maintainable software designs</li><li>Develop and maintain automation scripts across development, test, and production environments</li><li>Promote code quality, reuse, traceability, and cross-team collaboratio</li></ul>
2026-03-10T00:00:00Z

Software Engineering II

Gaithersburg, MD
onsite
Temporary
53 - 60 USD / Hourly
Locations: Gaithersburg, MD • Eagan, MN • Egg Harbor, NJSchedule: Hybrid (3 days onsite / 2 days remote)Clearance: Ability to obtain and maintain Public Trust (U.S. Citizenship required)OverviewWe are seeking a Junior Software Engineer with AI-enabled development experience to support a large-scale modernization program involving real‑time, high‑availability, safety‑critical systems. This role combines traditional software engineering with emerging AI‑augmented development techniques to enhance delivery, code quality, and system performance.This position is ideal for engineers who actively apply AI in their day‑to‑day workflow and want to contribute to a mission-critical, complex engineering environment. What You’ll Do<ul><li>Design, develop, test, and maintain software for real-time, high-availability systems.</li><li>Use AI-assisted development tools to accelerate coding, refactoring, debugging, and automated test generation.</li><li>Apply responsible AI practices across the full SDLC — requirements, design, implementation, testing, documentation, and code review.</li><li>Analyze complex system requirements and translate them into efficient, maintainable designs.</li><li>Develop and maintain automation scripts across development, test, and production environments.</li><li>Promote code quality, reuse, traceability, and cross-team collaboration.</li></ul>
2026-03-11T00:00:00Z

Software Development III

Arlington, VA
onsite
Temporary
75.24 - 75.24 USD / Hourly
This role is part of a technical sub-family responsible for writing and maintaining source code, building and maintaining software applications, and applying frameworks involved in the software release lifecycle. This includes programming, documentation, configuration management, testing, debugging, and overall stewardship of applications and frameworks that become production-ready software products.This role works independently on day-to-day objectives and is responsible for delivering high-impact results across projects or technical areas. This position may also coach and review work performed by junior or lower-level technical staff. Key Responsibilities:· Analyze, design, develop, and update software to support new features and system performance improvements.· Develop high-quality C++ applications in a Linux-based environment.· Implement and maintain communication interfaces and protocols including TCP/IP, UDP, and DDS.· Utilize Docker and Kubernetes (RKE2) for containerization, orchestration, and deployment automation.· Collaborate closely with cross-functional engineering teams to support deployments and integrations.· Apply strong understanding of Linux system internals for troubleshooting and development.· Manage and maintain software source control and configuration using industry‑standard tools.· Contribute to solution design discussions, influencing process and approach for the broader team.
2026-03-16T00:00:00Z

Software Development IV

Arlington, VA
onsite
Temporary
94.87 - 94.87 USD / Hourly
This role supports a key Federal defense program and is responsible for developing, maintaining, and enhancing complex software applications and frameworks across the full software release lifecycle. This role requires expert-level technical proficiency, strong problem-solving abilities, and the ability to contribute to multiple technical domains concurrently.This position works onsite in Arlington, VA, collaborating closely with an all-onshore engineering team. Ideal candidates will be able to quickly ramp up in a fast-paced environment and hit the ground running. Key Responsibilities:· Analyze, design, develop, and update software for new features, system enhancements, and performance improvements.· Write, maintain, and document high-quality C++ source code.· Develop solutions for complex technical problems affecting multiple systems and disciplines.· Implement and maintain communication interfaces using protocols such as TCP/IP, UDP, and DDS.· Work within the Linux operating system at an advanced level.· Support containerization and automated deployment using Docker and Kubernetes (RKE2).· Collaborate across engineering, operations, and integration teams to support software deployments.· Utilize software source control and configuration management tools.
2026-03-16T00:00:00Z

Front-End Web Developer

Springfield, VA
onsite
Temporary
50 - 55 USD / Hourly
Our client in the Washington, DC region is seeking a talented Front-End Web Developer (FEWD) to support ongoing digital initiatives. This role is ideal for a developer who blends clean, modern UI development with strong attention to detail and a passion for building intuitive, responsive user experiences.You’ll collaborate with designers, product teams, and back-end developers to bring digital products, websites, and interactive features to life. Key Responsibilities<ul><li>Develop responsive, accessible, and high‑performance web interfaces</li><li>Translate UI/UX wireframes and design comps into clean, maintainable code</li><li>Build reusable components and front-end libraries</li><li>Collaborate with designers, product managers, and engineering teams</li><li>Optimize applications for speed, scalability, and cross‑browser compatibility</li><li>Maintain and update existing websites, landing pages, and digital assets</li><li>Troubleshoot UI issues and implement front-end best practices</li><li>Ensure compliance with accessibility standards (WCAG, Section 508)</li></ul>
2026-03-16T00:00:00Z

GENAI CCAS Application Developer

Washington, DC
remote
Temporary
49 - 54 USD / Hourly
We are seeking an early‑career GenAI Application Developer to design, build, and enhance AI‑powered applications for an AWS‑based Contact Center as a Service (CCAS) platform. This role focuses on conversational AI, intelligent automation, and generative AI–driven customer and agent experiences using services such as Amazon Connect, Lex V2, Amazon Q in Connect, Contact Lens, Bedrock, OpenSearch, and AWS Lambda (Python). You will work closely with senior engineers, UI/UX designers, and cloud teams to implement voice and chat automation, agent assist features, secure AI orchestration, and supporting APIs and data pipelines—all within a security‑ and compliance‑focused environment.This is an excellent opportunity to grow as a software developer while contributing to impactful, production‑grade AI solutions. Primary ResponsibilitiesAmazon Connect Application Development<ul><li>Design, build, and maintain Amazon Connect contact flows, routing profiles, and queues for voice and chat</li><li>Integrate Amazon Lex V2 bots for call deflection, self‑service workflows, and escalation</li><li>Configure Contact Lens for transcription, summarization, sentiment analysis, QA insights, and redaction</li><li>Configure Amazon Q in Connect domains, knowledge sources, guided workflows, and agent assist capabilities</li><li>Implement secure S3‑based transcript storage with encryption, lifecycle policies, and retention controls</li></ul>eAI Orchestration & Backend Services<ul><li>Develop AWS Lambda (Python) functions to orchestrate:</li><li>Amazon Bedrock LLM calls</li><li>Embeddings workflows</li><li>Model invocation logging and observability</li><li>Implement OpenSearch indexing, keyword/vector queries, and ingestion triggers</li><li>Build Retrieval‑Augmented Generation (RAG) pipelines to support agent assist and self‑service knowledge</li><li>Apply structured logging, testing, error handling, and performance/cost safeguards</li></ul> Data Safety, Security & Compliance<ul><li>Implement AI guardrails, prompt templates, and output evaluation mechanisms</li><li>Enforce PII redaction and minimization across conversation logs</li><li>Participate in threat modeling and remediation for contact center integrations</li></ul>Web, Chat & Integration Support<ul><li>Support CloudFront + WAF configurations for secure web chat entry points</li><li>Build APIs and event hooks to pass context between web chat, Amazon Connect, and AI services</li></ul>DevSecOps & Operations<ul><li>Contribute to Git‑based CI/CD pipelines, code reviews, and documentation</li><li>Maintain runbooks, SOPs, and architecture diagrams</li><li>Create and monitor CloudWatch dashboards and alarms for:</li><li>Call deflection rate</li><li>Average Handle Time (AHT)</li><li>Contact resolution</li><li>AI usage metrics</li></ul>
2026-04-01T00:00:00Z

GoLang Developer IV

Washington, DC
onsite
Temporary
78 - 83 USD / Hourly
GoLang Developer IV Service Type: 45 Week Contract, Potential for ExtensionLocation: Onsite/Hybrid Washington, DC Position OverviewWe are seeking a Senior (Level IV) GoLang Developer to lead development initiatives and deliver high‑quality solutions within a modern, distributed systems environment. This role emphasizes hands‑on Go development, cloud‑native technologies, and secure, scalable system design. The ideal candidate is self‑driven, technically strong, and comfortable taking ownership of complex initiatives.Key Responsibilities<ul><li>Lead design and development of new functional features using Go</li><li>Troubleshoot, debug, and resolve software defects</li><li>Maintain high standards of code quality, performance, and scalability</li><li>Refactor existing codebases to improve efficiency and maintainability</li><li>Decompose business requirements into clear technical tasks and estimate effort</li><li>Participate in solution design discussions and document technical decisions</li><li>Work with distributed systems, messaging platforms, and databases</li><li>Collaborate with cross‑functional teams to deliver reliable solutions</li></ul>
2026-04-02T00:00:00Z