Application Developer, Java, JavaScript, Full-Stack

Job not on LinkedIn

🔥 0 minutes ago

🇺🇸 United States – Remote

💵 $55 - $60 / hour

⏱ Part Time

🟡 Mid-level

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 0%

What it means: the chance that no one is really hiring for this job.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.Why this score:

• Just posted.
• Jobs at this company usually fill in 47 days.

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Simsy Ventures

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2022

💼 Consulting

📣 Marketing

🏥 Healthcare

Consulting • Marketing • Healthcare

Simsy Ventures is a venture builder and institutional co-founder that partners with entrepreneurs, investors, and corporations to create sustainable startups. Their mission focuses on enabling startups to achieve true potential while promoting a positive impact on profits, people, and the planet. With a structured approach, they support startups throughout their lifecycle, from ideation to market validation and growth. By leveraging a repeatable venture studio model, Simsy Ventures aims to uplift economies globally through impactful entrepreneurship.

📋 Description

• Build ingestion connectors for CHPL, Service Base URL Lists, developer-published FHIR Bundles, Lantern, and other approved public sources • Preserve raw artifacts, timestamps, request metadata, response headers, and hashes • Normalize developer, product, version, criterion, CHPL ID, endpoint, organization, and validation records into the project's common data model in DynamoDB • Implement publication checks that fetch endpoint lists and classify availability failures • Build safe, non-authenticated endpoint observation for metadata and CapabilityStatement retrieval and detect endpoint drift • Run FHIR R4 validation against Endpoint, Organization, and Bundle resources • Build evidence case packages with source metadata, request and response logs, validation outputs, severity, and rule traceability • Support deduplication, clustering, and export to Government-designated systems • Design scheduling, retry and backoff, rate limiting, error handling, and audit logging • Make test runs replayable for evidence-case review • Write unit and integration tests, including stub and mock endpoints for failure scenarios • Participate in code review and keep technical documentation current • Prevent code from requesting, collecting, or storing patient data, PHI, credentials, or tokens unless authorized in writing

🎯 Requirements

• 5+ years of Java (17+) development, including concurrency and networked services • 3+ years of Spring Boot or an equivalent framework • 2+ years of JavaScript/Node for tooling and front-end development • 4+ years building REST APIs and working with JSON • 3+ years of working knowledge of HTTP and TLS fundamentals • 3+ years with the AWS SDK, DynamoDB data modeling, and S3 • 2+ years building and running containerized services • 4+ years of automated testing (JUnit, integration tests) • 3+ years of code review and technical documentation • 1+ year building with LLM APIs or using AI coding assistants in development, including testing and validating AI-generated output • Authorized to work in the United States

🏖️ Benefits

• 401(k) and company match • PTO that grows the longer you stay • Health, Vision, Dental • Company provided Life Insurance and Voluntary Life Insurance • Short Term Disability and Long Term Disability

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