Software Architect / C# / .NET

Motion Recruitment; Boston (MA); Hybrid; USD 180,000 - 240,000; Full time

Job summary

Motion Recruitment in Boston, MA is seeking a senior Software Architect to modernize a cloud-based SaaS platform. You will define architecture strategy and drive enterprise-scale design across multi-tenant environments, APIs, and event-driven systems.

The role requires 10+ years in enterprise software, strong .NET skills, REST API design, and experience with CI/CD and AWS/Azure. You will collaborate with product, engineering, and stakeholders to enable scalable, future-ready platforms.

Qualifications

• 10+ years in enterprise software design and development.
• Strong expertise in .NET stack and API design.
• Experience with multi-tenant SaaS platform architecture.

Responsibilities

• Define architecture strategy and platform roadmap.
• Lead design reviews with product and engineering teams.
• Drive scalable, event-driven and API integrations.
• Mentor engineers and oversee implementation.

Skills

.NET/C#

ASP.NET Framework

ASP.NET Core

Web APIs

Software architecture

Distributed systems

SaaS platforms

Multi-tenant design

Event-driven architecture

Data modeling

OO design/SOLID

REST APIs & integrations

CI/CD pipelines

Leadership & communication

Education

Bachelor's or Master's in CS or related

Tools

Microsoft SQL Server

MongoDB

Elasticsearch

RabbitMQ/ActiveMQ/Kafka

Azure

Kubernetes

Docker

Job description

Software Architect - .NET & SaaS Platform

Hybrid opportunity in Boston, MA. Our client is a rapidly growing software company delivering enterprise SaaS solutions that help organizations optimize workforce performance, competency management, compliance, and operational excellence. This is a full-time Software Architect opportunity focused on modernizing a cloud-based platform through scalable architecture, event-driven systems, API integrations, and enterprise software design.

This role is ideal for a senior technical leader who enjoys defining architecture strategy, influencing product direction, and designing highly scalable software solutions. You will partner closely with Product, Engineering, and business stakeholders to evolve a multi-tenant SaaS platform used by enterprise customers. The organization is seeking an architect who can balance technical vision with execution while helping drive innovation, scalability, and long-term platform growth.

Required Skills & Experience

• 10+ years of experience designing and developing enterprise software applications
• Extensive experience with .NET, C#, ASP.NET Framework, ASP.NET Core, and Web APIs
• Strong background in software architecture, distributed systems, and SaaS platforms
• Experience designing and supporting multi-tenant applications
• Deep understanding of event-driven architecture and messaging patterns
• Strong data modeling and database design experience
• Experience with Microsoft SQL Server and relational database architecture
• Experience with NoSQL technologies such as MongoDB or Elasticsearch
• Strong knowledge of SOLID principles, object-oriented design, and software design patterns
• Experience designing and implementing REST APIs and system integrations
• Experience with CI/CD pipelines and modern software delivery practices
• Bachelor\'s or Master\'s degree in Computer Science or a related technical discipline
• Excellent communication, analytical, and problem-solving skills

Desired Skills & Experience

• Microsoft Azure cloud experience
• Experience with Kubernetes (AKS) and Docker
• Experience with RabbitMQ, ActiveMQ, Kafka, or similar messaging technologies
• API security and API versioning expertise
• Angular or modern front-end framework exposure
• Experience leading architectural decisions across multiple engineering teams
• Experience building large-scale enterprise SaaS products
• Background in workforce management, HR technology, compliance platforms, or other B2B software solutions
• Experience overseeing software solution design, development, and implementation initiatives

What You Will Be Doing

Tech Breakdown

• 40% Enterprise Architecture & Solution Design
• 25% Platform Modernization & SaaS Strategy
• 20% Integration & Event-Driven Architecture
• 15% Cloud Infrastructure & DevOps Enablement

Daily Responsibilities

• 40% Architecture Leadership & Technical Strategy
• 25% Solution Design & Technical Reviews
• 20% Cross-Functional Collaboration
• 10% Mentorship & Engineering Guidance
• 5% Hands-On Prototyping & Proof of Concepts

The Offer

• Bonus Eligible

You Will Receive The Following Benefits

• Medical, Dental, and Vision Insurance
• Paid Time Off
• 401(k)
• Career Growth and Leadership Opportunities

Applicants must be currently authorized to work in the United States on a full-time basis now and in the future.

Additional Note: This position follows a hybrid schedule based in Boston, MA, requiring regular onsite collaboration with engineering and business stakeholders.

Posted By: Grant Willoe