Freelance React Frontend Developer Jobs in Addison, IL

We are the leading provider of professional services to the middle market globally, our purpose is to instill confidence in a world of change, empowering our clients and people to realize their full potential. Our exceptional people are the key to our unrivaled, culture and talent experience and our ability to be compelling to our clients. You’ll find an environment that inspires and empowers you to thrive both personally and professionally. There’s no one like you and that’s why there’s nowhere like RSM.

Solutions Architecture Manager

The Solutions Architecture Manager is a highly proficient, hands-on solution architect for RSM custom solutions. This role owns end-to-end microservice and API architecture for assigned solutions, defines Domain-Driven Design boundaries and event-driven patterns on Azure Service Bus, and sets engineering standards across React frontend and .NET/Python backend teams. The role operates with growing autonomy across the custom solutions estate and represents designs in architecture reviews.

Key Responsibilities

• Translate business and product requirements into end-to-end solution designs for RSM custom solutions spanning multiple frontend and backend services.
• Design microservice and API architectures for custom-built solutions; define service boundaries using Domain-Driven Design (DDD) principles.
• Architect event-driven integration patterns using Azure Service Bus; define message schemas, topic/subscription models, and error-handling strategies.
• Establish and enforce coding standards, design patterns, and engineering best practices across frontend (React) and backend (.NET / Python) teams.
• Ensure non-functional requirements (security, scalability, resiliency, observability) are embedded into all solution designs.
• Lead architecture and design reviews for new features, technical initiatives, and third-party integrations within assigned solutions.
• Produce and maintain architecture decision records (ADRs), high-level design (HLD) documents, and API specifications (OpenAPI/Swagger).
• Collaborate with product managers, UX designers, and engineering leads to shape technical roadmaps.
• Provide technical mentorship to senior engineers and conduct design and code reviews.

Qualifications & Experience

• 8+ years of software engineering or architecture experience, with at least 4 years in a solution architect role on complex, multi-service platforms.
• Expert-level proficiency in designing microservices architectures and RESTful / GraphQL APIs.
• Deep hands-on experience with React (frontend architecture) and .NET and/or Python (backend services).
• Strong experience with Azure cloud services, including Azure Service Bus, Azure API Management, Azure Kubernetes Service (AKS), and Azure DevOps.
• Advanced understanding of Domain-Driven Design, CQRS, Event Sourcing, and distributed systems patterns.
• Experience with CI/CD pipelines, container orchestration (Docker/Kubernetes), and DevSecOps practices.
• Working knowledge of OpenID Connect / OAuth 2.0 and fine-grained authorization in multi-tenant SaaS environments.
• Excellent verbal and written communication skills; experience presenting designs to senior technology stakeholders.
• Professional services or B2B SaaS product experience is advantageous.

Core Skills & Technologies

• Microservices Architecture
• API Design
• Azure Service Bus
• React
• .NET
• Python
• Domain-Driven Design
• Event-Driven Architecture
• Azure Cloud
• CI/CD & DevSecOps
• NFRs
• Architecture Review

At RSM, we offer a competitive benefits and compensation package for all our people. We offer flexibility in your schedule, empowering you to balance life’s demands, while also maintaining your ability to serve clients. Learn more about our total rewards at https://rsmus.com/careers/working-at-rsm/benefits.

All applicants will receive consideration for employment as RSM does not tolerate discrimination and/or harassment based on race; color; creed; sincerely held religious beliefs, practices or observances; sex (including pregnancy or disabilities related to nursing); gender; sexual orientation; HIV Status; national origin; ancestry; familial or marital status; age; physical or mental disability; citizenship; political affiliation; medical condition (including family and medical leave); domestic violence victim status; past, current or prospective service in the US uniformed service; US Military/Veteran status; pre-disposing genetic characteristics or any other characteristic protected under applicable federal, state or local law.

Accommodation for applicants with disabilities is available upon request in connection with the recruitment process and/or employment/partnership. RSM is committed to providing equal opportunity and reasonable accommodation for people with disabilities. If you require a reasonable accommodation to complete an application, interview, or otherwise participate in the recruiting process, please call us at 800-274-3978 or send us an email at careers@rsmus.com.

RSM does not intend to hire entry level candidates who will require sponsorship now OR in the future (i.e. F-1 visa holders). If you are a recent U.S. college / university graduate possessing 1-2 years of progressive and relevant work experience in a same or similar role to the one for which you are applying, excluding internships, you may be eligible for hire as an experienced associate.

RSM will consider for employment qualified applicants with arrest or conviction records. For those living in California or applying to a position in California, please click here for additional information.

At RSM, an employee’s pay at any point in their career is intended to reflect their experiences, performance, and skills for their current role. The salary range (or starting rate for interns and associates) for this role represents numerous factors considered in the hiring decisions including, but not limited to, education, skills, work experience, certifications, location, etc. As such, pay for the successful candidate(s) could fall anywhere within the stated range.

Compensation Range: $147,000 - $260,700

Individuals selected for this role will be eligible for a discretionary bonus based on firm and individual performance.