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CyrusOne Management Services LLC

Senior Software Engineer I

Carrollton, TX, United States

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Job details

Posting language: English
Posted: Nov 4, 2026

Original job description

CyrusOne is a global data center company serving hyperscalers and enterprise customers. With AI and cloud computing driving unprecedented demand for data center capacity, CyrusOne is growing rapidly to support the infrastructure powering the next generation of technology.

Our software engineering team is small but has an outsized impact. We build and own applications that connect CyrusOne with its customers, suppliers, and internal operations. Our customer portal serves as a central point of interaction between customers and the company, while our expanding portfolio of applications supports critical business functions such as procurement and supply chain operations. The opportunities to improve efficiency, simplify workflows, and deliver meaningful business value are substantial.

As part of a lean team, you’ll have significant ownership and the opportunity to make a visible impact. We keep processes lightweight and give engineers the freedom to make thoughtful technical decisions, experiment with new approaches where they add value, and take ownership of their solutions. We actively integrate AI into our development workflows, using it to accelerate delivery and expand what a small engineering team can accomplish

What You’ll Do

Own features from concept through delivery, translating business needs into well-designed, maintainable software solutions and taking responsibility for their successful implementation.
Build and enhance applications that support CyrusOne’s customers, suppliers, and business operations, working across frontend and backend systems.
Partner with stakeholders to solve business problems, developing an understanding of their workflows, challenging assumptions when appropriate, and helping shape solutions rather than simply implementing requests.
Investigate and resolve production issues, using application monitoring, logs, and sound technical judgment to efficiently diagnose problems, determine appropriate next steps, and implement effective solutions.
Contribute to technical decisions and continuous improvement, identifying opportunities to improve our applications, architecture, and development practices while balancing technical quality with business priorities.

What Makes Someone Successful on Our Team

We’re looking for an experienced engineer who combines strong technical capabilities with sound judgment, a product mindset, and a genuine sense of ownership.
You think beyond the code. You seek to understand the business problems we’re solving, ask thoughtful questions, and help translate sometimes ambiguous requirements into effective software solutions. You don’t need to be a domain expert, but you’re curious and willing to develop an understanding of the business.
You’re pragmatic. You care about writing quality, maintainable software, but you recognize that engineering decisions involve tradeoffs. You understand when to invest in technical improvements and when a simpler solution better serves the business.
You take ownership. You’re comfortable navigating unfamiliar codebases, investigating problems independently, and making decisions within your area of responsibility. You know when to ask for help, but you don’t need step-by-step instructions to make meaningful progress.
You’re adaptable and resourceful. You can work effectively when requirements are evolving, documentation is incomplete, or the path forward isn’t immediately obvious. Rather than waiting for perfect specifications, you take initiative to clarify what’s needed and move work forward.
You focus on outcomes. You take pride not simply in writing good code, but in delivering software that solves real problems. You balance thoughtful engineering with a commitment to getting things done.
You collaborate with humility. You bring your experience and ideas to the team, but you’re equally willing to listen, learn, and understand the context behind existing decisions. You offer constructive suggestions and recognize that there’s rarely only one right way to solve a problem.

Minimum Qualifications

7+ years of professional software development experience using C#/.NET Standard/.NET 6+, building internal and/or external-facing applications.
7+ years of experience with PostgreSQL or a comparable relational database management system (RDBMS).
Strong experience with ASP.NET Core, Web APIs, microservices, and service-oriented architecture (SOA).
Hands-on experience developing within a microservices environment, applying modern engineering practices such as Domain-Driven Design (DDD), Clean/Onion Architecture, CQRS, and Test-Driven Development (TDD).
Experience with publish/subscribe and messaging technologies such as RabbitMQ, Kafka, or MQTT.
Experience developing and deploying applications in a Linux-based cloud environment, preferably Microsoft Azure, using Docker or similar container technologies.
Exposure to front-end development using Vue.js 3, TypeScript, Node.js, or a comparable modern JavaScript framework.
Demonstrated ability to lead small to medium-sized projects or features from development through delivery.
Strong understanding of Agile software development principles and practices.
Strong problem-solving skills with the ability to analyze complex technical issues and make sound technical decisions.
Excellent communication, decision-making, presentation, and organizational skills, with the ability to build productive relationships across technical and business teams.
Self-motivated and able to work independently in a fast-paced environment while also mentoring junior team members.
Ability to work effectively within CyrusOne’s culture, core values, and business goals.

Our Technology Stack

Our applications are built using a modern technology stack that includes:

Backend: C# / .NET 10, ASP.NET Core, microservices
Frontend: Vue 3, TypeScript, Node.js
Data & Messaging: PostgreSQL, Redis, RabbitMQ, SignalR
Architecture & Practices: Domain-Driven Design, CQRS, Onion Architecture
Cloud & DevOps: Microsoft Azure, Docker, GitHub, Azure DevOps

Experience with our specific technology stack is a plus, but we do not expect candidates to have worked with every tool or technology listed above. We place greater emphasis on strong software engineering fundamentals, sound technical judgment, problem-solving ability, and the capacity to quickly learn and adapt to new technologies.

Work Environment:

This position requires typical weekday (Monday - Friday) attendance in a remote or office setting, at times afterhours work may be required to meet business and customer needs
Every position requires certain physical capabilities. CyrusOne seeks to make reasonable accommodations that enable individuals with disabilities to perform essential duties when possible

U.S. Citizenship may be required for this position pursuant to a government contract requirement and/or for security clearance reasons.

CyrusOne is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, sex, sexual orientation, gender identity, religion, national origin, disability, veteran status, or other legally protected status.

CyrusOne provides reasonable accommodation for qualified individuals with disabilities in accordance with the Americans with Disabilities Act (ADA) and any other state or local laws. We will respond to requests for reasonable accommodations to assist you in applying for positions at CyrusOne, or to submit a resume.

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More about this job

Skills

Supply chain management
Process improvement
Adaptability
Documentation
Perceive the context
Software development
C#
.NET
PostgreSQL
Microsoft ASP.NET
Microservices
RabbitMQ
Apache Kafka
Linux
Microsoft Azure
Docker
Front-end development
Vue.js
TypeScript
Node.js
JavaScript Framework
Agile
Problem solving
Communication skills
Decision making
Organizational skills
Work independently
Coaching
Redis
DevOps
GitHub

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