Full-Stack Software Engineer

MWDN; Warszawa; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

29 days PTO

10 paid recovery days

Free English classes

Independent contractor support

Dedicated HR support

Job summary

MWDN is seeking a hands-on Senior Full-Stack Software Engineer to stabilize, develop, and scale its healthcare platform. You will balance 50% frontend product engineering (patient and care-management apps) with 50% backend, cloud, and integration engineering (AWS, data interoperability, DevOps, security).

You will own end-to-end functionality from UI to cloud, working with Product, Clinical, Operations, and external partners.

Qualifications

• 5+ years of production software-engineering experience.
• Strong React/TypeScript/JavaScript front-end experience.
• Strong Node.js/TypeScript, Python, or comparable backend experience.
• Strong REST API, SQL, and PostgreSQL experience.
• Hands-on AWS and Docker/container experience.
• Experience with CI/CD and production application support.
• Experience with authentication, authorization, security, asynchronous processing, and failure handling.

Responsibilities

• Build and maintain patient-facing and care-management apps using React/TypeScript.
• Develop backend services, APIs, and PostgreSQL-based apps.
• Improve enrollment, care plans, clinical workflows, and dashboards.
• Build integrations with payers, HIEs, QHINs, and healthcare partners using REST APIs and HL7/FHIR interfaces.
• Implement data validation, patient matching, reconciliation, and provenance.
• Operate AWS services (ECS/Fargate, Aurora PostgreSQL, S3, SQS, EventBridge, CloudWatch, IAM, KMS, Secrets Manager).
• Strengthen CI/CD, automated testing, environment separation, deployment, rollback, monitoring, backup, and recovery.
• Implement HIPAA-appropriate security, RBAC, PHI protection, and audit logging.
• Support governed AI-enabled workflows with clinical oversight.
• Build reusable platform and integration capabilities for additional payers.

Skills

React/TypeScript

Node.js/TypeScript

Python

REST API

PostgreSQL

AWS

Docker

CI/CD

Security

Troubleshooting

Tools

AWS

Docker

GitHub Actions

Job description

MWDN is a global IT outstaffing company with 23+ years of experience that connects exceptional tech talent with leading companies across Israel, the USA, Great Britain, and Western Europe. We offer opportunities to work on international products in a stable and professional environment.

Why does MWDN rock?:

Here’s what you can expect when you join MWDN:

• Security: We carefully vet our clients to minimize risks and ensure reliability and timely payments - no fraud or unpleasant surprises.
• Career support: If a project isn’t the right fit, we support you and actively help find new opportunities that match your skills and career goals.
• Legal assistance: We provide guidance on legal matters, including opening and managing your independent contractor or sole proprietorship status, taxes, and related processes.
• Professional development: We offer English courses and professional growth opportunities, as well as team-building events.

Why choose us?

MWDN is ranked among the top 5 IT employers in our region according to DOU. We take pride in our transparency and strong commitment to our team. Curious to learn more? See what our employees say about working with us on DOU.

What is your new project?

We are a physician-led, value-based healthcare company improving care coordination and engagement for people living with sickle cell disease and other underserved populations

What makes this project exciting?:

The Role

We are seeking a hands-on Senior Full-Stack Software Engineer to help stabilize, develop, and scale its healthcare platform.

The role is intentionally balanced:

• 50% Full-Stack Product Engineering — patient and care-management applications, workflows, UI/UX, APIs, and feature delivery.
• 50% Backend, Cloud & Integration Engineering — AWS, data, healthcare interoperability, DevOps, security, and reliability.

The engineer should be comfortable owning functionality end to end: UI → API → database → cloud →monitoring → production support.

Reports to the Chief Technology Officer and works closely with Product, Clinical, Operations, and external partners

What makes you a great fit:

• 5+ years of production software-engineering experience.
• Strong React/TypeScript/JavaScript front-end experience.
• Strong Node.js/TypeScript, Python, or comparable backend experience.
• Strong REST API, SQL, and PostgreSQL experience.
• Hands-on AWS and Docker/container experience.
• Experience with CI/CD and production application support.
• Experience with authentication, authorization, security, asynchronous processing, and failure handling.
• Ability to troubleshoot across the full stack.

Preferred Experience

Healthcare or regulated-environment experience, particularly with:

• PHI
• FHIR R4/US Core
• HL7/ADT
• HIE/QHIN
• payer integrations
• claims/eligibility data
• ECS/Fargate
• Aurora
• S3/SQS/EventBridge
• CloudWatch
• IAM/KMS/Secrets Manager
• GitHub Actions
• Infrastructure as Code
• clinical workflows
• value-based care
• Amazon Bedrock

Your day-to-day in this position:

Key Responsibilities

• Build and maintain patient-facing and care-management applications using React/TypeScript or similar technologies.
• Develop backend services, APIs, asynchronous workflows, and PostgreSQL-based applications.
• Improve enrollment, care plans, assessments, clinical workflows, communications, dashboards, and administrative capabilities.
• Build integrations with payers, HIEs, QHINs, and healthcare partners using REST APIs, FHIR R4, HL7/ADT, C-CDA, SFTP, and file-based interfaces.
• Implement data validation, patient matching, reconciliation, provenance, duplicate handling, and exception workflows.
• Build and operate AWS services including ECS/Fargate, Aurora PostgreSQL, S3, SQS, EventBridge, CloudWatch, IAM, KMS, and Secrets Manager.
• Strengthen CI/CD, automated testing, environment separation, deployment, rollback, monitoring, backup, and recovery.
• Implement HIPAA-appropriate security, role-based access, PHI protection, audit logging, and secrets management.
• Support governed AI-enabled workflows while maintaining appropriate human clinical oversight.
• Build reusable platform and integration capabilities that support additional payers, states, and clinical programs without creating separate codebases

First 90-Day Priorities

• Stabilize production patient and care-management workflows.
• Resolve high-priority application and usability defects.
• Strengthen authentication, authorization, and PHI handling.
• Improve CI/CD, automated testing, deployment, and rollback.
• Complete development, test/UAT, and production separation.
• Expand application and infrastructure monitoring.
• Improve payer/HIE ingestion, error handling, and reconciliation.

Make long-running workflows resilient and observable.

• Reduce dependence on undocumented or single-person operational knowledge

Why work with us?

• People-first management with minimal bureaucracy
• A friendly company culture, proven by employees who choose to return
• Flexible working hours
• 29 days of PTO (18 working days per year pluse all national holidays)
• 10 paid recovery days
• Full financial and legal support for independent contractors
• Free English classes, with native speakers or Ukrainian teachers
• Dedicated HR support