back-end software engineer

job summary: As a Full Stack Software Engineer on the AI Innovation Team, you will design, build, and deploy intelligent, data-driven applications and platforms that leverage advanced analytics and machine learning. You'll collaborate with data scientists, AI engineers, and business experts to prototype, productize, and scale innovative healthcare technology solutions-from predictive models to intelligent automation and visualization tools. You'll work across the full stack-from back-end APIs and databases to front-end user experiences-bringing AI concepts into practical, scalable solutions that improve business and clinical outcomes.    location: San Diego, California job type: Contract salary: $50 - 60 per hour work hours: 8am to 5pm education: Bachelors   responsibilities: Design, develop, and deploy full stack applications supporting AI and data-driven insights React, Node.js, Python, etc.). Build scalable APIs and microservices to integrate machine learning models, data pipelines, and operational systems. Develop intuitive front-end interfaces for visualization, monitoring, and human-in-the-loop AI interactions. Partner with data scientists to operationalize AI models and integrate them into production workflows. Collaborate with DevOps, DataOps, and Cloud teams to ensure scalable, secure deployment. Participate in design thinking sessions and innovation sprints to prototype and validate new concepts. Write clean, testable, well-documented code following software engineering best practices. Ensure application performance, scalability, and security compliance (HITRUST, HIPAA). Contribute to continuous integration and continuous delivery pipelines. Evaluate emerging technologies in generative AI, large language models (LLMs), and automation frameworks. Build proof-of-concept projects to demonstrate value and guide technology adoption. Contribute to reusable AI service frameworks and SDKs for use across teams.   qualifications: Bachelor's degree in Computer Science, Software Engineering, or related field (Master's preferred). 5+ years of full software development lifecycle experience across planning, building, delivering, and maintaining high-quality and cost-effective software systems. Proven experience in React or Angular and Node.js, Python, or Java, databases PostgreSQL, MongoDB, Chroma, or similar, building and consuming REST and GraphQL APIs. Familiarity with AI/ML integration-serving models, integrating APIs OpenAI, Azure AI, Vertex AI, etc., and building data workflows. Strong understanding of cloud platforms, containerization: Docker, Kubernetes, and CI/CD. Commitment to software quality, data privacy, and security compliance (HIPAA, HITRUST). Strong analytical, communication, and collaboration 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. Qualified applicants in San Francisco with criminal histories will be considered for employment in accordance with the San Francisco Fair Chance Ordinance. Qualified applicants with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. We will consider for employment all qualified Applicants, including those with criminal histories, in a manner consistent with the requirements of applicable state and local laws, including the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance.

job summary: Proven experience in Microservices Architecture development with REST Strong communication and presentation skills    location: Merrimack, New Hampshire job type: Contract salary: $72 - 73 per hour work hours: 8am to 5pm education: Bachelors   responsibilities: Bachelor's degree in computer science or any other discipline3-6 years of successful technical solutions design and hands on experience in JAVA requiredBack-end application development expertise with extensive hands-on experience in Java, Spring Boot, Spring Cloud, Spring Security. Experience with CockRoachDB would be a plusExperience building APIs and working with API GatewaysExperience with Authorization and Authentication technologies and techniques is Highly preferredFull understanding of software development process including analysis, design, coding, unit, functional and integration testing, understanding of test automation and test-driven development, troubleshooting, problem resolutionDesigning and implementing secure, scalable, and highly available enterprise compliant systems, using Amazon Web Services (AWS)Experience building containers-based systems: Architecture, implementation and managing orchestration platforms: Docker, EKSHands-on experience designing systems that use modern distributed Software Architecture PatternsCritical thinking and complex problem-solving ability required   qualifications: Excellent oral and written communication skills - ability to effectively communicate across internal engineering and architecture teams Experience in Agile development methodology Experience with the following is a plus: GIT, Maven, Jenkins, Jira 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: We are looking for an experienced software engineer who can build tools and solutions for AI evaluations, content aggregation, business rule improvements, prompt tuning, and model changes, and serve as a technical liaison with our operational product partners to optimize the platform over time and evaluate and mitigate poor/unexpected output. You will be the go-to technical partner bridging product operations and engineering for our search and answer platform. You'll investigate and resolve specific question issues, identify patterns across classes of issues, and drive pragmatic solutions-from code fixes and prompt updates to content and business rule changes. You'll run experiments, track metrics, and coordinate changes with multiple teams, ensuring quality and reliability in a hypercare environment, especially around releases.    location: Orlando, Florida job type: Contract salary: $84 - 88 per hour work hours: 9am to 5pm education: No Degree Required   responsibilities: - Work with product partners to design and run experiments for changes to models, prompts, content, retrieval strategies, guardrails, and other variables; track and report metrics using internal tooling and industry-standard AI observability platforms. - Build or enhance tooling for content gap detection, retrieval diagnostics, prompt evaluation, and automated guardrails to minimize poor/unexpected outputs. - Help define and monitor key KPIs (e.g., precision/recall, MRR/NDCG, answer accuracy, coverage, and latency) and maintain dashboards that reflect quality and reliability over time. - Investigate and determine root cause for specific search and answer issues in partnership with product and operations (e.g., content gaps, retrieval/pipeline problems, prompt quality, code bugs, configuration or business rule errors). - Implement fixes directly or coordinate with the appropriate engineering and content teams to mitigate issues and prevent regressions. - Identify classes of issues, propose product improvements, and design technical solutions to improve relevance, answer quality, and recommendation performance at scale. - Own triage in a hypercare role after releases: ensure issues are logged, prioritized, assigned, and driven to closure with clear communication and SLAs. - Document findings, playbooks, and runbooks; create repeatable processes for RCA, experimentation, and hypercare operations.   qualifications: - Strong software engineering skills in Java and Python, with experience building back-end services, APIs, pipelines, and integrations. - Hands-on experience with search technologies and Retrieval-Augmented Generation (RAG), including vector embeddings, chunking strategies, and prompt building. - Practical knowledge of when and how to use LLMs to improve efficiency and quality, including prompt design/tuning, guardrails, and fallback strategies. - Proven root cause analysis (RCA) capabilities: ability to trace issues across data, retrieval, prompts, models, and code; skilled at identifying patterns and proposing systemic fixes. - Excellent communication, relationship-building, and cross-team coordination skills; comfortable serving as a liaison between product operations and engineering. - Experience with experimentation frameworks and A/B testing, defining success metrics, and interpreting results to drive decisions. - Familiarity with AI observability and monitoring tools for prompt/model performance, drift detection, and error tracking. - Proficiency with CI/CD, version control, automated testing, and feature flagging. - Strong bias for action; able to manage multiple priorities in a fast-moving environment and follow through from issue detection to mitigation. 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.