Sr. Software Engineer

Eliassen Group; San Juan (PR); Remote; USD 130,000 - 165,000; Full time

Job summary

Eliassen Group is seeking a Sr. Software Engineer to work remotely on full‑stack development for healthcare platforms. You will build React front ends with C#/.NET back‑end services, apply AI‑assisted engineering, ensure code quality, and collaborate with stakeholders and architects.

The role offers a competitive salary ($130,000–$165,000 per year) with comprehensive benefits for a W2 employee. Requires 10+ years of OO development and Azure experience.

Qualifications

• Minimum 10 years of OO software development with C#, .NET Core, Razor Pages.
• Full-stack experience with React and .NET back-end services.
• Experience with Azure services and REST data integration.
• Hands-on AI-assisted engineering tools and practices.
• Security embedded in CI/CD and cloud environments.

Responsibilities

• Develop across full stack, front ends with React and back-end with C#/.NET.
• Re-engineer legacy apps using Microsoft tech stack.
• Apply AI-assisted engineering to improve velocity and quality.
• Ensure tests, design patterns, and documentation are in place.
• Adhere to Agile DevOps and DevSecOps practices.

Skills

Object-oriented development

C# / .NET Core

React.js

Azure services

NoSQL Cosmos DB

REST APIs

NUnit

DevSecOps

AI-assisted engineering

UI/UX collaboration

Education

Bachelor’s degree in Computer Science or related field

Microsoft solutions certifications (architecture)

Tools

Azure API Apps

Azure Logic Apps

Azure Functions

Job description

Sr. Software Engineer

Anywhere

Type: Permanent

Category: Development

Industry: Healthcare

Workplace Type: Remote

Standard Hours: Open

Reference ID: JN -092026-108808

Date Posted: 09/28/2026

Shortcut: http://careers.eliassen.com/4XJfoR

Description

Remote

The Sr. Software Engineer is a hands‑on, forward deployed full-stack builder who turns prioritized business use cases into working software for our client's healthcare technology platforms, developing across front ends and back‑end services. This role reports to the Engineering Manager. Working with business stakeholders, solution architects, and the Technical Product Management team, the Sr. Software Engineer identifies and defines business needs that require developed technology solutions to achieve business outcomes. Working within architecture standards and design patterns, this role is responsible for the development, quality assurance, implementation, and maintenance of solution components and applies AI‑assisted engineering as everyday practice. This role leverages the agile life cycle for solutions deployment in all projects as well as objectively assessing quality and logistics production readiness. The Sr. Software Engineer collaborates effectively with colleagues and stakeholders to promote values, team culture, and mission.

This is a full‑time, permanent opportunity, offering a competitive salary and comprehensive benefits package. Qualified applicants must be willing and able to work on a w2 basis.

Salary: $130,000 - $165,000/ yr. w2

Responsibilities

• Work across the full stack, developing React front ends and C#/.NET back-end services to develop, test, deploy, and maintain solution components that fulfill prioritized business use cases.
• Re-write and re-engineer custom legacy applications using the Microsoft tech stack.
• Apply AI-assisted engineering using LLMs, AI developer tooling, and automation to raise development velocity and quality and integrate AI-powered features.
• Implement solutions following best practices, writing clean, maintainable, and reusable code with sound design patterns and documentation.
• Develop design patterns and standards and participate in refactoring or new technology efforts, including research and communication of new patterns for team adoption.
• Ensure automated unit, system, and regression testing coverage prior to launch, writing manual and automated test cases using NUnit.
• Perform peer coding and design reviews with peer developers.
• Conduct independent verification and validation through test case development and test plan execution to ensure production readiness.
• Adhere to Agile DevOps processes, tools, and environments for requirements, design, construction, QA, version control, deployment, troubleshooting, and change management.
• Apply DevSecOps principles to ensure security and data integrity aligned with PCI and HIPAA goals.
• Execute deployment logistics and documentation and provide ongoing support, maintenance, monitoring, performance optimization, and troubleshooting.
• Ensure solution architecture aligns with applicable regulations, policies, security protocols, and procedures.
• Partner with product owners and designers in requirements discovery and usability sessions.
• Work closely with technology and business partners to ensure proper testing, implementation, and documentation.
• Create documentation on current software state and historical process accounts.
• Complete required documentation accurately and on time and maintain privacy and confidentiality.
• Follow policies and procedures, complete required training and screenings, and communicate with the supervisor and team regarding workload and priorities.
• Exercise flexibility as business needs evolve and perform other duties as assigned.

Experience Requirements

• Minimum 10 years of object-oriented software development and maintenance using C#, .NET Core, and Razor Pages.
• Full-stack development with React.js front ends and .NET back-end services.
• Experience with Azure services such as Azure API Apps, Azure Logic Apps, Azure Functions, and REST services.
• Hands‑on experience with AI-assisted engineering tools and practices, including LLM-based tooling, code generation, and workflow automation.
• Experience with NoSQL databases, namely Azure Cosmos DB.
• Experience with REST APIs and integrating multiple data sources.
• Experience writing automated unit, system, and regression tests using NUnit.
• Strong DevSecOps principles with security embedded in code, CI/CD, and cloud.
• Understanding of Azure Data Factory is a plus.
• Understanding of Release Management principles in structured environments for managing release levels and deployments.
• Excellent oral and written communication skills.
• Experience in fast‑paced, collaborative, and team‑based project environments.
• Ability to process accurate information in a timely manner with strong organizational skills.
• Demonstrated ability to prioritize in a fast‑paced environment.
• Experience working with people from diverse backgrounds and cultures.
• Commitment to serving vulnerable seniors.

Education Requirements

• Bachelor’s degree in Computer Science, Mathematics, or equivalent experience. Relevant professional experience may be substituted.
• One or more Microsoft solutions certifications in solutions architecture preferred.

Recruitment Transparency Notice

Eliassen Group values transparency in our recruitment practices. Please be advised that Eliassen Group utilizes artificial intelligence (AI) tools as part of its initial application screening and hiring process. You may receive email and SMS notifications from the Eliassen Virtual Recruiting Team ( [e-mail] , 781-808-2924) inviting you to complete a brief voice screening as part of your application process. These tools assist our hiring teams in different ways, including but not limited to, assistance in reviewing application materials to help identify candidates whose qualifications most closely match the requirements of the position. All AI-assisted evaluations and responses are reviewed by human recruiters before any hiring decisions are made. The use of AI in our process is intended to support fairness, efficiency, and consistency, and Eliassen Group takes measures to prevent bias or discrimination in connection with its hiring practices. By proceeding, you acknowledge, agree, and consent to Eliassen Group’s use of these tools, including AI tools, as part of the application and hiring process.

Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range.

W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality.

About Eliassen Group

Eliassen Group is a strategic consulting firm that helps organizations reach further and achieve more through our technology, business advisory, and life sciences solutions. For nearly 40 years, we have combined exceptional people, deep domain expertise, and intelligent capabilities to expand our clients’ capacity and accelerate meaningful outcomes. We are driven by a purpose to positively impact the lives of our employees, clients, consultants, and the communities we serve.

Eliassen is committed to building a diverse and inclusive team from a variety of backgrounds, perspectives, and skills. We are an Equal Opportunity and ...