
Closed
Posted
We are looking for more than a normal software developer. We need someone like an HL7 / healthcare integration engineer who can understand an old system, clean it up, and rebuild it safely in the new environment. We want someone who can do these things: - Understand HL7 — ADT, ORM, ORU, fields, routing, transforms. - Understand Mirth / BridgeLink — channels, sources, filters, transformers, destinations. - Read old code and old configuration and figure out what it really does. - Document the current system instead of guessing. - Find bad, duplicate, or dead rules and decide what should stay or go. The project specifically says every old channel/filter/transform must be inventoried, then mapped to a new cloud-Mirth version or retired. - Build the new cloud Mirth system with one clean standard model instead of many messy site-specific rules. - Work with Laurel Bridge Compass and Navigator for HL7/DICOM routing and image prefetch. - Test very carefully before changing production. Our plan is to run the old and new systems together, compare messages field by field, and cut over only after validation. -Troubleshoot independently.
Project ID: 40673749
79 proposals
Remote project
Active 4 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
79 freelancers are bidding on average $18 USD/hour for this job

Hello, I understand that you are in need of a highly skilled HL7 healthcare integration engineer for your project. My expertise lies in precisely the areas you have outlined, including understanding HL7 standards, working with Mirth/BridgeLink, deciphering old code, and documenting systems accurately. I have a proven track record of cleaning up legacy systems, streamlining processes, and ensuring a seamless transition to new environments. By meticulously inventorying and mapping old channels to new cloud-based solutions, I can guarantee a more efficient and standardized approach for your healthcare integration software. With experience in Laurel Bridge Compass and Navigator for HL7/DICOM routing, I am well-equipped to handle the complexities of your project. I am committed to thorough testing and validation to ensure a smooth transition without disrupting your production environment. I invite you to open a chat so we can discuss the technical intricacies of your project further. Let's collaborate to bring your vision to life seamlessly. Sincerely, Rajesh
$15 USD in 40 days
9.4
9.4

Hi, I can understand HL7 and the intricacies involved in healthcare integration. I will thoroughly analyze the old system, ensuring a clean transition to the new environment. I can identify and document the current system's functionality, addressing any hidden risks such as bad or duplicate rules. My approach will involve a detailed inventory of all channels, filters, and transforms, ensuring that each component is either mapped to the new cloud-Mirth version or retired appropriately. For the new cloud Mirth system, I will establish a clean standard model, avoiding the pitfalls of messy site-specific rules. I will also integrate with Laurel Bridge Compass and Navigator for effective HL7/DICOM routing and image prefetching. Testing will be a priority; I will run both systems concurrently, comparing messages field by field to ensure accuracy before making any changes to production. I am prepared to troubleshoot independently throughout the process. You can view my relevant experience in my portfolio: https://www.freelancer.com/u/techplusintl Ready to start immediately!
$20 USD in 40 days
6.8
6.8

With over a decade of experience developing intelligent software systems and automating complex workflows, I am confident of my ability to meet your unique integration needs. My skills run the full spectrum of your project requirements seeking new heights everyday; panning from proficiently understanding HL7 standards, especially ADT, ORM, ORU, routing, transforms to running expertly with tools like Mirth / BridgeLink and mediating layers like Laurel Bridge Compass and Navigator. One advantage of working with me is my well-honed ability to adapt to and optimize existing systems. I have a knack for reading and interpreting legacy code while genuinely understanding its underlying functionality. This expertise ideally aligns with the need for meticulous documentation in your project, eradicating any ambiguities surrounding the status of old configurations. Additionally, I approach my projects by prioritizing clarity and coherence. By ensuring every channel/filter/transform is personally inventoried before retiring or migrating them to a new cloud-Mirth version, I guarantee your new system will possess one clean standard model that can drive significant efficiency gains. Lastly, my extensive experience with large-scale implementations equipped me with unmatched troubleshooting skills required for seamless navigation even amidst challenging scenarios. Let me help you rejuvenate your healthcare integration system while ensuring consistent productivity throughout!
$15 USD in 40 days
6.1
6.1

Hello!! {{{ I HAVE EXPERIENCE WORKING WITH HL7, Mirth/NextGen Connect, HEALTHCARE INTEGRATIONS, MESSAGE ROUTING & SYSTEM MIGRATION BEFORE AND I CAN SHOW YOU }}} I have carefully reviewed your requirements and understand that this is not a simple development project. The key is to first understand and document the existing HL7 environment, then safely rebuild and validate it in the cloud. I can inventory existing ADT, ORM, ORU channels, filters, transformers, routing rules and destinations, identify duplicate/dead logic, and map each component to the new standardized Mirth architecture or retirement plan. I can also work with Laurel Bridge Compass/Navigator for HL7/DICOM routing and image prefetch, while maintaining proper logging, error handling and traceability. For migration, I recommend a parallel-run approach: document the current system → build the new environment → replay/test messages → compare old vs new field-by-field → resolve discrepancies → perform controlled cutover. I have 11+ years of programming and integration experience and can work independently on troubleshooting, documentation, testing and production migration. I WILL PROVIDE 2 YEARS OF FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE. Thanks, Christina > > > > > > > We'll share relevant healthcare/integration experience in Chat. Let's discuss the existing environment and migration plan further. <<<<<<<
$20 USD in 40 days
6.7
6.7

With over 13 years of experience, I have cultivated an in-depth understanding of complex software systems and their interoperability within the healthcare industry. My team and I specialize in building MERN applications, WordPress, WooCommerce, and implementing AI-powered solutions. Through more than 300 successful projects, we’ve not only garnered a 99% satisfaction rate but have also fostered long-term relationships with our clients based on our commitment to clear communication, clean code, and consistent delivery. Given your requirements for an HL7/healthcare integration engineer who can comprehend existing systems and rebuild them safely in a new environment, my background aligns perfectly with your project needs. I’m well-versed in HL7 standards such as ADT, ORM, ORU and have extensive knowledge in working with Mirth/BridgeLink and Laurel Bridge Compass and Navigator for HL7/DICOM routing. I'm highly adept at both reading older code and configurations to decipher functionality as well as meticulously documenting the current system instead of resorting to guesswork. Moreover, I understand the necessity of thorough testing before making any changes to the production system. Based on your plan to run the old and new systems together for meticulous comparison on field-by-field message analysis, rest assured that we approach trouble-shooting problems independently ensuring comprehensive testing and constant validation to make sure that no glitches
$15 USD in 40 days
6.0
6.0

The core of this project is not writing new code, but accurately understanding the existing operational logic and preserving its essential behavior during the migration. I will approach this by first conducting a rigorous inventory of every channel, filter, and transform, documenting the actual data flow and business rules before making any changes. This documentation will serve as the definitive map, allowing us to categorize each rule as either essential or obsolete before the new system is built. For the new cloud-Mirth environment, I will design a standardized model that centralizes these confirmed rules, eliminating site-specific duplication and inconsistencies. The parallel run will be used as a primary validation tool, where I will compare outputs field-by-field to identify any behavioral drift, ensuring the new system is a true functional replacement before production cutover.
$20 USD in 40 days
5.9
5.9

HL7 pipeline migrations succeed or fail on how carefully you uncover years of unrecorded edge cases hidden inside legacy transformer scripts. In systems that evolved organically across multiple clinic sites, local feeds inevitably drift away from standard specifications, usually masked by one-off regex patches and ad-hoc filter logic. My approach centers on disciplined discovery: cataloguing every active channel, isolating dead branches, and constructing a clean canonical data model on your cloud Mirth instance. Your dual-run validation strategy is the exact right safeguard, but field-level parity comparisons frequently stumble on custom Z-segments and unescaped delimiters that legacy engines quietly swallowed. When I set up shadow testing, I build automated diffing scripts that mirror inbound ADT and ORM feeds across both environments simultaneously, logging exact payload mismatches before any production cutover touches Laurel Bridge Compass or Navigator. Once we prove total parity across the message lifecycle and decommission the orphaned rules, your infrastructure will run on a predictable, modular framework that makes adding new DICOM routes or hospital endpoints simple. Let us coordinate a brief technical call to examine your existing channel inventory and map out the dual-run validation sequence.
$15 USD in 40 days
5.9
5.9

Hi, This project is fundamentally an integration-discovery and controlled migration exercise, not a simple Mirth rebuild. I’m comfortable working from the existing system outward: inventory every channel, source, filter, transformer and destination; identify the actual HL7 behavior; document field mappings and routing logic; then classify each legacy rule as retain, consolidate, replace or retire. For the new environment, I would standardize the cloud-Mirth implementation around reusable channel patterns and shared transforms rather than reproducing years of site-specific duplication. The most important part of the migration would be validation. I would run old and new interfaces in parallel, capture comparable messages, and perform field-level and routing comparisons before any production cutover. Exceptions would be documented and resolved before switching traffic. I’m also comfortable troubleshooting HL7 workflows independently and working with external routing/imaging components such as Laurel Bridge where required. I would begin with a structured audit and migration matrix so scope, risks and cutover sequence are clear before rebuilding production interfaces.
$25 USD in 40 days
4.4
4.4

Hey , I just went through your job description and noticed you need someone skilled in Software Architecture, Database Management and Software Development. That’s right up my alley. You can check my profile — I’ve handled several projects using these exact tools and technologies. Before we proceed, I’d like to clarify a few things: Are these all the project requirements or is there more to it? Do you already have any work done, or will this start from scratch? What’s your preferred deadline for completion? Why Work With Me? Over 280 successful projects completed. Long-term track record of happy clients and repeat work. I prioritize quality, deadlines, and clear communication. Availability: 9am – 9pm Eastern Time (Full-time freelancer) I can share recent examples of similar projects in chat. Let’s connect and discuss your vision in detail. Kind Regards, Zain Arshad USA
$15 USD in 43 days
4.3
4.3

With a comprehensive grasp of HL7 and the ability to proficiently navigate Mirth and BridgeLink, I am well-equipped to handle your unique software overhaul project. Over the course of my 14-year career, I've successfully taken charge of similar undertakings across various industries, especially in Healthcare. The task at hand – deconstructing and reassembling an aged system to align with current standards – calls for methodical precision and meticulous documenting, skills that have been honed throughout my career in software development. My expertise also extends to healthcare-specific image routing using Laurel Bridge Compass and Navigator, which brings another layer of efficiency to the table. Don't settle for an ordinary developer; choose me for unparalleled value and top-notch outcomes with your HL7 integration needs!
$20 USD in 40 days
4.2
4.2

Hi, I am a professional web developer and I can do this project "HL7 Healthcare Integration Software Engineer Needed", I have 5 years of experience in web development. I have done many projects like this. I can do this job for you. I can start right now. Please contact me. Thanks
$15 USD in 2 days
3.3
3.3

Hi-Abror Here From Uzbekistan. "HL7 Integration Modernization" - I can rebuild your healthcare integration system using HL7, Mirth, and secure migration practices. I can analyze existing HL7 workflows, document channels, filters, transformers, and create a clean cloud-based Mirth architecture with reliable routing and validation. I will inventory legacy configurations, remove unnecessary rules, test message comparisons, support DICOM integrations, and deliver a safe production migration process. Can you share the current Mirth channels and existing HL7 workflow documentation? Looking forward to working with you.
$20 USD in 40 days
3.0
3.0

Hi there, The hard part is not just migrating to a new environment; it’s ensuring that the integrity of the old system is maintained while cleaning and rebuilding it effectively. Understanding HL7 intricacies and Mirth configurations is crucial for this transition. My approach would involve a thorough documentation of the existing system to identify and address any issues with channels, filters, and transformations, ensuring a clean mapping to the new cloud-based Mirth architecture. Could you clarify the extent of the documentation you expect for the old system? Thank you.
$20 USD in 40 days
2.0
2.0

Hi There!!! i understand you need to safely analyze the existing HL7 integration environment, document every channel and rule, clean unnecessary logic, and rebuild a standardized cloud Mirth setup with validated message routing. I HAVE ALREADY WORKED ON SIMILAR HEALTHCARE INTEGRATION PROJECTS INVOLVING HL7 MESSAGES, MIRTH CHANNELS, TRANSFORMATIONS, ROUTING, TESTING AND SYSTEM MIGRATION. The work will cover ADT, ORM and ORU workflows, channel and rule inventory, field mapping, filters and transformers, cloud Mirth configuration, Laurel Bridge integration, DICOM routing, parallel testing, message comparison, documentation and production cutover support. Let us have a chat to review the existing architecture and migration plan. Best Regards, Hussain Ahmed
$15 USD in 40 days
1.8
1.8

Hi, I am a software engineer with over 16 years of experience modernizing integration systems where legacy behavior must be understood and preserved before anything is replaced. I can audit the existing Mirth/BridgeLink channels, filters, transformers, destinations, and HL7 flows across ADT, ORM, and ORU; document each rule; identify duplicates or dead logic; and map every component to the cloud Mirth design or a justified retirement. I would first establish a verified current-state inventory, then build a consistent reusable channel model for routing and transforms, including Laurel Bridge Compass/Navigator touchpoints. For migration, I would run old and new flows in parallel, capture representative messages, compare fields and routing outcomes, resolve discrepancies, and support a controlled cutover with rollback readiness. Which Mirth/BridgeLink versions are currently in use, and do you already have representative HL7 message samples and channel exports available? I would be glad to discuss the environment and migration plan in detail.
$25 USD in 30 days
1.2
1.2

Hi, I understand you’re not looking for a normal developer—you need someone who can safely reverse-engineer and modernize a legacy healthcare integration environment. I can inventory every existing Mirth/BridgeLink channel, filter, transformer and route, document what each actually does, identify duplicate/dead rules, and map each to the new cloud-Mirth model or retire it. I can work with HL7 ADT/ORM/ORU, Laurel Bridge Compass/Navigator, DICOM routing and image prefetch. I’ll use a parallel old-vs-new approach, compare HL7 messages field-by-field, validate thoroughly, then perform a controlled production cutover. I’ll troubleshoot independently and ensure the new system is clean, standardized, documented, and maintainable.
$15 USD in 40 days
0.6
0.6

Hi there, I see that you’re looking for someone to help with HL7 healthcare integration, specifically to clean up and rebuild an older system in a new environment. My approach would involve thoroughly understanding the existing HL7 components, including ADT, ORM, and ORU, while also diving into Mirth/BridgeLink channels and configurations. I believe in documenting every detail of the current system so that we can make informed decisions about what to keep and what to retire. With my experience in software architecture and database management, I’m confident in my ability to create a streamlined cloud Mirth system that adheres to a clean standard model. I will ensure rigorous testing by running both systems in parallel, comparing messages meticulously before any production changes. Looking forward to helping you with this project! Best regards, Muhammad Arshman
$20 USD in 40 days
0.0
0.0

I can deliver the healthcare integration work across clinical systems, APIs, and data-exchange workflows with reliable interoperability and traceability. * I’ll implement and troubleshoot integrations using REST APIs and healthcare standards such as HL7/FHIR, including patient, encounter, order, and clinical-data mapping between systems. * I’ll enforce schema validation, idempotency, retries, audit logging, secure authentication/encryption, PHI-safe error handling, and HIPAA-aligned data handling where applicable. Patient data will remain protected throughout transport, processing, and logging. Please share the source/target systems, required HL7/FHIR interfaces, and existing API/interface documentation.
$15 USD in 40 days
0.2
0.2

Hi, At first glance, this looks straightforward but there’s usually one part that causes issues later. Happy to share a quick plan if you're open to it. Regards, Rajesh
$20 USD in 40 days
0.0
0.0

Hello, I’m Adam, a Senior Full-Stack Developer with experience working with complex integrations, APIs, healthcare-related systems, and legacy application modernization. I understand this project requires much more than development — you need someone who can analyze an existing HL7/Mirth environment, understand the current behavior, document it properly, remove unnecessary complexity, and safely rebuild it in a cleaner cloud-based architecture. My approach is to first understand the current system completely, document the real behavior, and then migrate step-by-step with minimal risk. I strongly believe healthcare integrations require careful validation, traceability, and controlled deployment rather than quick changes. I have experience with backend systems, API integrations, databases, automation workflows, and working with large existing codebases where stability and correctness are critical. I would be happy to review your current HL7/Mirth setup, discuss the migration strategy, and help build a clean, scalable integration environment. Best regards, Adam
$15 USD in 40 days
0.0
0.0

Obrenovac, Serbia
Payment method verified
Member since Nov 19, 2025
$8-15 USD / hour
$25-50 USD / hour
$250-750 USD
$8-15 USD / hour
$30-250 USD
£250-750 GBP
$4-20 USD / hour
$500 USD
₹12500-37500 INR
min $50 USD / hour
$15-25 USD / hour
$100-200 USD
$250-750 AUD
₹75000-150000 INR
₹1500-12500 INR
$250-750 USD
₹12500-37500 INR
$500 USD
₹750-1250 INR / hour
₹500000-1000000 INR
$8-15 USD / hour
$3000-5000 USD