Jobs in the United States

25+ jobs

Save this search

Added 4 mins ago
Sr Contamination Control Engineer
ASML US, LP. (US20)
Wilton, CT
…produce smaller, faster, and more powerful chips. As a Senior Production Engineer, you will play a critical role in strengthening manufacturing performance, supporting new product…
Added 5 mins ago
Software Engineer, Full Stack Web
Volvo Car Corporation
Mahwah, NJ
Use production, quality, and flow data to improve reliability, developer experience, and delivery effectiveness.
Added 7 mins ago
Lab Engineer, Avionics Test Team, Avionics - Amazon Leo
Amazon Kuiper Manufacturing Enterprises LLC
Redmond, WA
As an Amazon Leo Lab Engineer, you will be hands-on every day - executing tests in production and keeping lab spaces clean and safe. You will set up and maintain Windows and Linux based…
Added 16 mins ago
Lead Engineer
Jobgether
Remote, United States
We are seeking an experienced Lead Engineer to drive the design, development, and implementation of innovative architectural panels and steel products. In this role, you will lead an…
Added 16 mins ago
S
R&D Project Engineer
SprintRay
Huntington Beach
- $80,000 to $95,000 USD / year
The R&D Project Engineer is a hybrid role that combines program leadership with hands-on laboratory work. Approximately half of the role (~50%) is dedicated to planning and driving…
Added 34 mins ago
Principal Electrical & Electronics (E&E) Engineer – Test Solutions – Onsite (Tewksbury/Andover, MA)
RTX Corporation
tewksbury, MA
This position is for a Principal Electrical Engineer with at least eight (8) years of professional experience. If you enjoy working in hands-on multidisciplinary teams, the Test Solutions…
Added 34 mins ago
Senior Electrical & Electronics (E&E) Engineer - Test Solutions – Onsite (Tewksbury/Andover, MA)
RTX Corporation
tewksbury, MA
This position is for a Senior Electrical Engineer with at least five (5) years of professional experience. If you enjoy working in hands-on multidisciplinary teams, the Test Solutions team…
Added 45 mins ago
Launch Operations Engineer (All levels)
Blue Origin Personnel, LLC
Space Coast, FL
As a Launch Operations Engineer, you will lead the design and implementation of efficient manufacturing and launch systems, ensuring stringent quality control throughout production and…
Added 1 hour ago
Improvement Engineer
Olin Corporation
US-TX-Freeport
The Improvement Engineer leads the plant-level improvement process by gathering and analyzing data, evaluating improvement opportunities, and implementing improvement projects. This role…
Added 1 hour ago
Design Engineer
Actalent
Glendale, CA
…to build and test products, and help bring new products into production. Lead projects and support junior…
Added 1 hour ago
AE
Campus Graduate Masters Summer Internship Program - 2027 AI Engineer, Enterprise Technology Services- Phoenix, AZ
American Express
Phoenix, AZ
- $24.05 to $63 USD / hour
…infrastructure, providing 24x7 support to ensure an uninterrupted, high-quality experience for customers and colleagues. We also provide product management for core enterprise platforms,…
Added 1 hour ago
AE
Campus Graduate Masters Summer Internship Program - 2027 Software Engineer, Enterprise Technology Services- Phoenix, AZ
American Express
Phoenix, AZ
- $24.05 to $63 USD / hour
How Product, Engineering, Quality, Security, and business partners collaborate from idea to production.
Added 2 hours ago
Senior VDI Engineer
Valiant Solutions, LLC
St. Louis, MO
Valiant Solutions is seeking a Senior VDI Engineer to join our rapidly growing, innovative team!
Added 2 hours ago
DevOps Architect
Jobgether
Remote, United States
…troubleshooting while maintaining high standards of security and quality. This remote opportunity is ideal for a technically strong leader who enjoys solving complex challenges, mentoring…
Added 2 hours ago
AF
Injection Stretch Blow Molding Process Engineer
Amcor Flexibles, LLC
Shelbyville, KY
- $7.25 USD / hour
…improving process/tooling issues. In addition, the Process Engineer will hold the responsibility for process optimization and recommendations for mold modification to new tooling to meet…
Added 2 hours ago
Senior Integration Engineer – AI - Tax And Audit AI
Thomson Reuters (Tax & Accounting) Inc
Brooklyn, NY · Frisco, TX · Chicago, IL · Ann Arbor, MI · Eagan, MN
Help bring AI into the systems tax and audit professionals rely on every day. As a Senior Integration Engineer, you will connect AI solutions with Thomson Reuters products and client…
Added 2 hours 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
PRODUCTION CONTROLLER (AIRCRAFT) TITLE 32 PERMANENT
Air National Guard Units
Newington, NH
Summary THIS IS A NATIONAL GUARD TITLE 32 EXCEPTED SERVICE POSITION This National Guard position is for a PRODUCTION CONTROLLER (AIRCRAFT) TITLE 32 PERMANENT, Position Description Number…
Added 3 hours ago
H
Software Systems Engineer - GitHub Enterprise
HP
Vancouver
- $105,050 to $161,800 USD / year
…move faster through standardized tooling, CI/CD pipelines, and production-grade Kubernetes infrastructure. You’ll work at the intersection of developer experience, platform engineering, and…
Added 3 hours ago
Software Development Engineer
Texas Instruments
Dallas, TX
The software development engineer is responsible for the development of ROM code, low-level device drivers ( both bare-metal & RTOS based), tool-chain support, SDK development & custom…
Added 3 hours ago
AS
IT - Systems Engineer
Apex Systems LLC
Denver, CO
- $70 to $75 USD / hour
Senior Identity & Access Management (IAM) Engineer
Added 3 hours ago
AS
Manufacturing Engineer-SEC
Apex Systems LLC
Littleton, CO
- $30 to $40 USD / hour
This position requires a manufacturing professional to develop and implement assembly processes, production layouts, and equipment installations. The selected candidate will drive the…
Added 3 hours ago
Engineer - Mfg
Hunter Defense Technologies Inc
Geneva, OH
Description Who we are: BLADE is the leader in industry-leading production of state-of-the-art, fully integrated deployable solutions such as shelters, generators, environmental control…
Added 3 hours ago
Project Engineer
Magnetic Technologies Corporation
Greenville, OH
Job purpose Bridges the gap between sales, engineering, and production to evaluate new business proposals, estimate manufacturing costs, and lead products successfully from initial quote…
Added 3 hours ago
Manufacturing Engineer
F&P America Mfg. Inc.
Troy, OH
…utilizes the most advanced processes to produce the highest quality Chassis Systems, Suspension Parts, Pedal Assemblies and more for the world's leading automakers. We are seeking highly…

FacilityOS

Senior Software Engineer

Annapolis, MD, United States

Apply About employer

Applications open in a new tab.

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.

Apply About employer

Report this job