Full-Time

Senior Agentic Software Engineer

Posted on 9/9/2026

M3

M3

501-1,000 employees

Hotel accounting SaaS with BI analytics

No salary listed

Lawrenceville, GA, USA

In Person

Bachelor's

Category
Software Engineering (1)
Required Skills
LLM
Microsoft Azure
JavaScript
MySQL
Git
SQL
Docker
TypeScript
.NET
Microservices
C#
REST APIs
Oracle
Angular

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Requirements
  • A minimum of 10+ years of experience in a directly related position.
  • Experience with the .NET Core framework.
  • Advanced development capability with .NET Core, C#, Angular/TypeScript, REST APIs, microservices, SQL, Entity Framework, and enterprise SaaS design patterns.
  • Experience with cloud platforms such as Azure.
  • Experience using Azure DevOps, GitHub, Git-based workflows, pull requests, automated reviews, and continuous integration and continuous delivery pipelines.
  • Proven results accelerating software feature delivery using agentic workflow.
  • Experience using object-relational mapping tools such as Microsoft Entity Framework.
  • Proficiency with GitHub Copilot, Claude Code, and similar agentic development tools, including guiding parallel-agent workflows from task definition through validation.
  • Experience with continuous integration and continuous delivery pipelines using GitHub.
  • Experience with REST APIs.
  • At least five years of experience with JavaScript frameworks, with Angular preferred.
  • At least five years of experience with relational database systems such as SQL Server, Oracle, or MySQL.
  • Demonstrated proficiency applying AI-assisted or agentic development tools to production-grade software delivery, including prompt design, agent orchestration, code review, automated testing, and risk validation.
  • Experience mentoring engineers in responsible AI-assisted development practices, including when to use agents, how to constrain them, and how to verify their outputs.
  • Strong written and verbal English skills.
  • Ability to communicate effectively and build and maintain positive business relationships with coworkers and other business contacts.
  • Ability to attend regularly and work full time during normal office hours, with some weekends and evenings as project needs or scheduling requirements dictate.
  • Organizational skills and the ability to meet deadlines.
  • Strong problem-solving and communication skills.
Responsibilities
  • Serve as a senior technical contributor across the software development life cycle, applying engineering standards, architecture guidance, and advanced AI-assisted and agentic development workflows.
  • Collaborate with the team to identify end-user requirements and technical specifications.
  • Direct the team in making design decisions focused on performance, scalability, extensibility, quality, security, and ease of maintenance.
  • Develop and review production-quality .NET, Angular, API, and SQL code, including code created through GitHub Copilot, Claude Code, or approved parallel agents.
  • Lead debugging, automated testing, deployment readiness, and validation strategies for human-authored and AI-generated changes.
  • Troubleshoot and improve existing applications.
  • Define and maintain technical documentation, prompt patterns, validation playbooks, and code-review expectations supporting responsible agentic workflow adoption.
  • Decompose complex work into agent-ready tasks and safely initiate, coordinate, and review parallel agents for coding, refactoring, test generation, and defect resolution.
  • Mentor Associate Software Engineers and Software Engineers in prompt strategy, tool selection, agent orchestration, code review, automated testing, and secure AI-assisted development practices.
  • Assist the manager in guiding engineering practices, assessing technical performance, setting standards, and training developers in modern and agentic software development practices.
  • Assist in preparing specifications, acceptance criteria, implementation plans, and estimation approaches that account for AI-assisted delivery, review, testing, and risk.
  • Perform other duties as assigned.
Desired Qualifications
  • Experience with microservices and containers, including Docker.
  • A bachelor's degree in IT, MIS, or Computer Science, or an equivalent combination of education and experience.
  • Relevant certifications or training in .NET, Azure, GitHub, secure coding, DevOps, architecture, or AI-assisted software development.
  • A strong developer portfolio, including GitHub projects, production examples, standards contributions, mentoring materials, or responsible AI-assisted development examples.

M3 offers cloud-based SaaS for hotel finance, including Accounting Core for hotel accounting, Insight for operational analytics, and Labor Management for daily tasks. Customers subscribe to the software online and can add on professional services with on-demand CPAs, MBAs, and hotel accounting experts for tasks or full outsourcing. The company combines specialized hotel accounting software with optional outsourced expertise, serving everything from single properties to large management groups with a mix of self‑service analytics and full‑service accounting options. Its goal is to help hotels run their finances and operations more efficiently through integrated software and expert services.

Company Size

501-1,000

Company Stage

Acquired

Total Funding

N/A

Headquarters

Gainesville, Florida

Founded

1998

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Simplify Jobs

Simplify's Take

What believers are saying

  • M3's June 2026 Reeco-Corpay launch expands procure-to-pay automation across hospitality finance.
  • Bridge integration converts M3 accounting data into lender-ready projections, shortening financing cycles.
  • M3 won 2026 HotelTechAwards finalist status, showing strong customer satisfaction and market momentum.

What critics are saying

  • HotelTechReport ranked M3 only #2 in 2026, behind a faster-rising competitor.
  • M3's AI push depends on recent executive hires, including Serven, Guerrero, and Miller.
  • Blackstone ownership creates exit pressure; failed integration execution weakens M3 against Oracle and Intacct.

What makes M3 unique

  • M3 serves 9,000+ North American hotel properties with hotel-specific accounting workflows.
  • Blackstone bought a majority stake in M3 in August 2024, backing expansion.
  • M3 deepens ecosystem lock-in with AvidXchange, Reeco, Bridge, and Edenred integrations.

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Benefits

Remote Work Options

Growth & Insights and Company News

Headcount

6 month growth

9%

1 year growth

9%

2 year growth

9%
PR.com
Apr 10th, 2026
M3 appoints Ross Serven as Vice President of Data & Artificial Intelligence and Paul Guerrero as Vice President of Engineering.

M3 appoints Ross Serven as Vice President of Data & Artificial Intelligence and Paul Guerrero as Vice President of Engineering. Lawrenceville, GA, April 10, 2026 -( PR.com )- M3, the leading hospitality accounting software company in the United States, today announced two strategic executive appointments: Ross Serven as Vice President of Data & Artificial Intelligence and Paul Guerrero as Vice President of Engineering. These newly elevated leadership roles underscore M3's commitment to advancing AI-driven innovation and delivering worldclass engineering excellence across its platform. As the hospitality industry faces increasing operational complexity and rising expectations for efficiency, M3 continues to pioneer intelligent, scalable technology solutions that empower hoteliers nationwide. The addition of Serven and Guerrero strengthens the company's ability to accelerate product innovation, enhance platform performance, and deliver transformative value to customers. "Ross and Paul each bring exceptional expertise and a deep passion for building technology that makes a meaningful difference for our customers," said JoAnn Kintzel, CEO of M3. "Ross will guide our AI strategy with a focus on responsible, customer-centric innovation, while Paul's engineering leadership will ensure our platform continues to scale with the reliability and performance our industry demands. Together, they will help shape the next generation of M3's solutions." Ross Serven - Vice President of Data & Artificial Intelligence In this newly created role, Serven will lead M3's end-to-end data and AI strategy and execution - building the foundation that powers customer-facing capabilities of its SaaS offerings, as well as the internal analytics, forecasting, and automation that drive operational efficiency, excellence, and insights. This role will oversee all aspects of data platform architecture, AI capabilities, product enablement, governance, and analytics strategy. Paul Guerrero - Vice President of Engineering Guerrero, a seasoned technology leader with extensive experience in SaaS, cloud-native architecture, and large-scale software delivery, joins M3 to oversee engineering strategy and execution. With a background spanning transformation initiatives, data analytics, and modern cloud technologies, Guerrero brings a strong track record of building high-performing engineering organizations and delivering enterprise-grade solutions. In his role, Guerrero will lead M3's engineering teams in advancing platform scalability, reliability, and innovation, ensuring the company continues to meet the evolving needs of hospitality organizations across the country. Driving the Future of Hospitality Technology Through continued investment in responsible AI, modern engineering practices, and customer-focused innovation, M3 empowers hospitality organizations to operate more efficiently, respond quickly to changing business conditions, and unlock new opportunities for growth. M3 is a leading provider of cloud-based accounting, financial reporting, and business intelligence solutions for the hospitality industry. M3's platform, including Accounting Core(TM) and CoreSelect(TM), are used by over 9,000 hotel properties across North America, helping owners and management companies streamline their financial operations. Learn more at www.M3as.com. Peter Ricks 770-297-1925 www.m3as.com/

M3
Mar 31st, 2026
Bridge and M3 announce strategic partnership to streamline hotel financing and financial intelligence.

Bridge and M3 announce strategic partnership to streamline hotel financing and financial intelligence. Under the partnership, M3's hospitality clients will gain direct access to Bridge's network of acquisition and refinancing capital, while a new API integration will allow hotel owners to seamlessly import their M3 financial data into Bridge's platform to generate projection models used in the lending process. The companies also plan to co-develop AI-powered tools purpose-built for hotel owners. By M3 Staff NEW YORK & LAWRENCEVILLE, GA - March 31st, 2026 - Bridge, a digital lending platform connecting hotel owners with capital providers, and M3, a leading provider of hotel accounting and financial management software, today announced a strategic technology and go-to-market partnership designed to give hotel owners faster access to financing and smarter tools to manage their properties. Under the partnership, M3's hospitality clients will gain direct access to Bridge's network of acquisition and refinancing capital, while a new API integration will allow hotel owners to seamlessly import their M3 financial data into Bridge's platform to generate projection models used in the lending process. The companies also plan to co-develop AI-powered tools purpose-built for hotel owners. Connecting Capital to the Back Office For hotel owners seeking acquisition or refinancing capital, the lending process has traditionally required manual gathering of financial statements, trailing-twelve-month operating data, and property-level detail - much of which already lives inside their accounting system. This partnership eliminates that friction. "Hotel owners shouldn't have to spend weeks assembling spreadsheets to apply for a loan," said Rohit Mathur, CEO, Bridge. "By integrating directly with M3's accounting platform, we can pull verified financial data into Bridge and generate lender-ready projection models in a fraction of the time. That means faster term sheets and a better borrower experience." Through Bridge's platform, M3's customer base of small and midsize hotel operators will now be able to explore financing options across a broad lender network - spanning conventional debt, SBA loans, CMBS, and private capital - without leaving the ecosystem they already use to run their properties. AI-Powered Innovation for Hotel Owners Beyond the core integration, Bridge and M3 intend to jointly develop new AI-driven technology to support hotel owners with financial planning, underwriting preparation, and portfolio monitoring. "Our partnership with Bridge represents exactly the kind of innovation our customers are asking for - technology that connects their day-to-day financial operations with the broader capital decisions that drive their business forward," said JoAnn Kintzel, CEO, M3. "Together, we're building a more connected financial ecosystem for the hospitality industry." About Bridge Bridge is an AI-driven lending platform transforming how hospitality developers access capital. As a leader in Hospitality CRE and Supplier Financing, Bridge delivers fast, transparent, and tailored funding solutions by combining cutting-edge technology with industry expertise. By streamlining the financing process, Bridge enables owner, developers and suppliers to focus on growth and innovation. Bridge has established partnerships with leading corporations, including Hilton, Choice Hotels, Hyatt Hotels, AAHOA, Walmart, Best Buy, and Chipotle, to support franchisees and suppliers nationwide. Backed by TTV Capital, Citi Ventures, FinCap, Thayer Partners, Uncorrelated Ventures and Gilgamesh Ventures, Bridge is committed to driving value and unlocking new opportunities for its clients. Learn more at https://www.bridgemarketplace.com/hotel-financing and follow them at https://www.linkedin.com/company/bridgemarketplace/ About M3 M3 is a leading provider of cloud-based accounting, financial reporting, and business intelligence solutions for the hospitality industry. M3's platform, including Accounting Core(TM) and CoreSelect(TM), are used by over 9,000 hotel properties across North America, helping owners and management companies streamline their financial operations. Learn more at www.M3as.com.

HITEC
Jul 16th, 2025
M3 Appoints New CTO and VP of HR, Launches Next Evolution of CoreSelect

M3, the hospitality industry's leading cloud-based financial software platform, announces the recent appointment of Klavs Miller as Chief Technology Officer (CTO) and Allison Carter as Vice President of Human Resources.

PYMNTS
Mar 19th, 2025
Edenred Debuts Virtual Card Solution For Insurance Payouts

Edenred Payment Solutions has unveiled a tool to speed insurance claim payouts. The U.K. company’s virtual card number (VCN) product, announced Wednesday (March 19), is designed to let customers access funds instantly rather than waiting weeks for reimbursements. “Virtual cards and embedded finance are transforming the insurance industry by streamlining the claim payout process,” Rehana Mitha, Edenred’s managing director, said in a news release provided to PYMNTS. “These technologies enable instant access to funds; eliminating delays and reducing paperwork for policyholders, while also offering insurers better transparency and fraud prevention tools.”

PYMNTS
Mar 17th, 2025
3 Ways Embedded Finance Solutions Are Remaking B2B Procurement

The golden rule of work is often to keep personal and professional lives separate. But when it comes to payments, the seamless experiences and expectations that internal decision makers have in their personal lives are reshaping the B2B payments landscape. Embedded finance, the integration of financial services such as buy now, pay later (BNPL) within non-financial platforms, has emerged as a critical driver of change. As FinTech innovation seeps into the corporate landscape, B2B payments are shedding their bureaucratic layers, replacing paper checks and ACH transfers with embedded financial solutions that mirror consumer experiences. From eCommerce giants embedding lending options into their platforms to software-as-a-service (SaaS) providers offering real-time payment processing and other services, embedded finance is making finance invisible yet accessible, enabling businesses to focus on operations rather than payment frictions