Jobs in the United States

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Added 1 hour ago
Senior Tooling Engineer
Sanders Industries Holdings
San Clemente, CA
IRP MED is seeking a highly motivated Senior Tooling Engineer to support the design, development, and optimization of tooling for Liquid Silicone Rubber (LSR) molded components. This role…
Added 2 hours ago
Senior Full Stack Engineer
FacilityOS
Annapolis, MD
We are looking for a highly capable Sr. Full Stack Engineer who can ramp up quickly, collaborate effectively with the existing team, and begin contributing meaningful delivery outcomes…
Added 2 hours ago
Senior Software Engineer
FacilityOS
Annapolis, MD
We are looking for a highly capable Sr. Back-End Engineer who can ramp up quickly, collaborate effectively with the existing team, and begin contributing meaningful delivery outcomes within…
Added 3 hours ago
Sr BEOL Engineer - DRAM Process Integration
Micron Technology
Boise
JR115927 Sr BEOL Engineer - DRAM Process Integration
Added 4 hours ago
Consulting BI Architect
HCA Healthcare
Nashville, TN
Added 4 hours ago
Senior Network Engineer
Brunel
CA
Brunel has partnered with SB Energy to hire an Senior Network Engineer to support the development and execution of large-scale power generation and data center infrastructure projects…
Added 5 hours ago
Senior Network Engineer - Deployments
NVIDIA Corporation
North District, IL
NVIDIA’s Network Deployment team is looking for a Senior Network Engineer to join our dynamic, results-driven organization. In this role, you will take ownership of complex network…
Added 5 hours ago
Safety Manager II, (Traveling, Construction)
Dennis Group
Indianapolis, IN
Attend and prepare safety actions for pre-construction conferences, pre-work meetings including inspection meetings, and periodic in-progress project meetings.
Added 5 hours ago
Network Engineer - Mid/Sr
Deloitte US
Colorado Springs, CO
As a PROJECT - Lead Security Engineer II on the Enterprise Security team, you will be responsible for designing, deploying, troubleshooting, and optimizing secure, high-availability…
Added 5 hours ago
Sr Data Engineer-Sr Consultant- AI&E
Deloitte US
Philadelphia, PA
…a collaborative environment? As an experienced Senior Data Engineer Sr Consultant, you will have the ability to share new ideas and collaborate on projects as a consultant without the…
Added 9 hours ago
Senior Staff Engineering Program Manager (EPM)
Northrop Grumman
Dulles, VA · McLean, VA
Prior Experience as a Chief Engineer, System Engineering Integration and Test (SEIT Lead), Integrated Product Team (IPT) Lead, Program Manager, Project Management, or EPM - in addition to…
Added 9 hours ago
Technology Consulting - TMT - Forward Deployed Engineer - Sr Manager
EY
Chicago, IL · Houston, TX · Miami, FL · New York, NY · San Antonio, TX · San Francisco, CA · Dallas, TX
As a Senior Manager and Forward Deployed Engineer (FDE), you will help establish and lead our FDE capability. An FDE combines four disciplines in one role: software engineering, deep AI and…
Added 11 hours ago
Sr. Quality Engineer - Business Team
PARKER-HANNIFIN CORPORATION
OGDEN, UT
Added 11 hours ago
Sr. Project and Continuous Improvement Engineer
HEXCEL CORPORATION
SALT LAKE CITY, UT
…of the "strength within." Hexcel is currently seeking a Sr. Project and Continuous Improvement Engineer for our Salt Lake City, UT, location. The selected individual will be responsible for…
Added 12 hours ago
Sr. Applications Engineer - FIB/PFIB
ThermoFisher Scientific
Fremont, CA
Join our team at Thermo Fisher Scientific as a Senior Field Applications Engineer, where you'll provide technical expertise to semiconductor and life sciences companies. Working at the…
Added 15 hours ago
Engineer Electric System Engineering
Avangrid Service Co
ROCHESTER, NY
Position Information Job Title: Engineer - Electric System - Engineering Location: Rochester, NY Salary Range: $87,600 - $109,500 Schedule: On Site, Office, 5 days Job Summary The Lines…
Added 1 day ago
AE
Sr Firmware Engineer
Advanced Energy
Wilmington, MA
- $120,000 to $150,000 USD / year
As a Firmware Engineer, you'll play a key role in developing the intelligent technologies that power innovative electronic products. You'll design, develop, and enhance embedded software,…
Added 1 day ago
A
Sr. Project Manager (A/E Services/Relocate To Guam)
Actalent
Honolulu, HI
- $140,000 to $170,000 USD / year
Professional Engineer (PE), Registered Architect (RA), or Project Management Professional (PMP) certification.
Added 1 day ago
Sr Engineer, Testing
Wayne Fueling Systems LLC
Lombard, IL
A Software Engineer in Test is a software engineering role within Dover Fueling Solutions that adheres to test implementations. There is the expectation they will learn what is important to…
Added 1 day ago
Sr. Project Manager
Jacobs
Columbus, OH · Cleveland, OH · Cincinnati, OH
…tomorrow. We are seeking an enthusiastic and experienced Sr. Project Manager to join our East-Central Water…
Added 1 day ago
Sr. Process Engineer - Growing Media
Scotts Miracle-Gro
Columbus, OH
…apply! Job Description We are looking for a Senior Process Engineer to join our Growing Media (GM) Maintenance & Engineering team at one of our plant locations. This position will be remote…
Added 1 day ago
Sr Project Manager-ENG
Zachry Group
Omaha, NE
Zachry Engineering Corporation is seeking an experienced Senior Project Manager to lead the execution of engineering and EPC projects within the energy, power generation, chemical, and…
Added 1 day ago
M
Senior Azure Data Engineer (No C2C)
ManpowerGroup
Baltimore, MD
- $71 to $75 USD / hour
Our client, a leading organization in the energy sector, is seeking a Sr. Data Engineer to join their team. As a Sr. Data Engineer, you will be part of the Data Engineering department…
Added 1 day ago
Substation Design Engineer
Entergy
New Orleans, LA
This position will be filled by an Engineer I, II, III or Sr., based on the experience and qualifications of the selected candidate.
Added 1 day ago
IT Project Manager Senior
Entergy
New Orleans, LA
…defined stage gate process. This role provides direction to project team members and resolves or escalates issues that affect these projects. Provides management insight into the assigned…

FacilityOS

Senior Software Engineer

Annapolis, MD, United States

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Job details

Experience: Minimum of 6 years of proven experience in backend .NET Framework / .NET Core web application development using C#.
Posting language: English
Posted: Nov 1, 2026

Original job description

ABOUT FACILITYOS

FacilityOS is a fast-growing company redefining how facilities operate - bringing safety, security, and daily operations into one unified platform used by organizations around the world.

As we continue to scale globally, we’re building a team of driven, curious people who want to make an impact. You’ll be part of a dynamic, collaborative culture where individuals are trusted to take ownership, solve meaningful problems, and grow in their careers. Our team comes together in-office twice a week to connect, collaborate, and build momentum.

If you’re looking to do your best work alongside a great team in a high-growth environment, FacilityOS is the place to build your career.

About the Role:

We are looking for a highly capable Sr. Back-End Engineer who can ramp up quickly, collaborate effectively with the existing team, and begin contributing meaningful delivery outcomes within the first few weeks. This role is well suited for someone who is comfortable navigating legacy systems, applying strong architectural principles, and making thoughtful technical decisions that improve delivery throughput without compromising quality.

The ideal candidate brings strong backend engineering experience, sound judgment, and the ability to work independently while staying closely aligned with team standards and architectural direction.

This role is a hybrid position where you’ll be required to come into our office three (3) times a week.

Duties and Responsibilities:

Design, develop, review, and maintain backend web applications and services across the FacilityOS platform.
Quickly develop a working understanding of existing platform architecture, legacy components, integration points, and modernization opportunities.
Collaborate with the engineering team to make sound technical decisions that align with established architectural principles and delivery goals.
Contribute to legacy modernization efforts using incremental, low-risk approaches such as the Strangler Fig pattern where appropriate.
Maintain high code-quality standards through code reviews, unit testing, static code analysis, and the adoption or improvement of engineering tools and standards.
Participate actively in peer code reviews, providing constructive feedback and helping promote maintainable, testable, and scalable solutions.
Troubleshoot and resolve application issues across environments, including staging and production, with a focus on root-cause analysis and sustainable fixes.
Work directly with engineering leads, product stakeholders, and project managers to support business operations and project delivery.
Research, evaluate, and recommend innovative application, automation, and architectural improvements that would benefit the FacilityOS platform.

Skills and Qualifications:

Minimum of 6 years of proven experience in backend .NET Framework / .NET Core web application development using C#.
Proven ability to quickly understand complex legacy systems, identify key integration points, and contribute effectively with limited ramp-up time.
Strong experience using object-oriented programming, design patterns, and clean architecture principles to build maintainable, testable software.
Proven experience writing unit tests and applying quality-focused development practices.
Proven experience designing and building RESTful services.
Experience in designing and building cloud-native SaaS and PaaS applications (Azure / AWS). Azure cloud experience will be preferred
Solid knowledge of Microsoft SQL Server and T-SQL.
Ability to make sound technical decisions in collaboration with existing engineering teams.
Proactive, curious, and investigative mindset with strong attention to quality and detail.
Passion for technology, continuous improvement, and modern engineering practices.
Ability to self-manage priorities and deliver outcomes with minimal supervision.
Strong team-player attitude with the ability to collaborate across engineering, architecture, and product stakeholders.
Hands-on experience with Event-Driven architecture is a plus
Hands-on experience with Microservices is a plus

Why work at FacilityOS?

We work hard and play hard and we do both with passion and respect for one another. Our company promotes a fast-paced, fun, friendly, and highly collaborative work environment that provides:

🩺Comprehensive health coverage

🏠A Hybrid work environment

💡Opportunity for advancement and growth

🍕 Catered Events, Snacks, Drinks – You won’t go Hungry!

🥳 Birthday and Life Celebrations

🎉 Two annual parties in a year

FacilityOS Commitment

We believe that a diverse team is the key to innovation and growth. We are an equal opportunity employer that value diversity at our company and encourage all candidates to apply. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

FacilityOS will accommodate individuals with disabilities through each stage of the recruitment and selection process. Please advise us of any needs when your interview is booked, and we will do our best to meet your needs.

Please note that all candidates must be legally eligible to work in the location in which you applied.

Background and Reference Checks

Any offer of employment may be conditional upon full background checks including a criminal record check, a credit check and employment and educational verifications. A reference check will also be conducted.

We may use artificial intelligence (AI) tools to support parts of the hiring process such as reviewing applications. These tools assist the recruitment team but do not replace human judgment. All advancement and hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us or click here https://www.deeplytalented.com/responsible-ai.

FacilityOS thanks all candidates for their interest, however only those selected to continue in the process will be contacted.

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