Jobs in the United States

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Added 5 mins ago
TI
Applied AI Engineer, Go-to-Market
Tutor Intelligence
Watertown, MA
- $130,000 to $250,000 USD / year
As our first Applied AI Engineer on Go-to-Market, you'll build the operating system for how Tutor finds, wins, and grows customers across the physical economy. You'll design the process…
Added 5 mins ago
TI
Applied AI Engineer, Finance
Tutor Intelligence
Watertown, MA
- $130,000 to $250,000 USD / year
As our first Applied AI Engineer on Finance, you'll build the operating system for how Tutor runs its finances: planning and forecasting, billing, the close, and the numbers leadership and…
Added 7 mins 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 8 mins ago
AS
Manufacturing Engineer-SEC
Apex Systems LLC
Littleton, CO
- $30 to $40 USD / hour
…robotics, and computer-aided software to reduce costs and improve product quality. The role involves analyzing three-dimensional model data to optimize digital work instructions and…
Added 22 mins ago
Associate Human Factors Engineer/Human Factors Engineer
Northrop Grumman
Melbourne
Collaboration with Design Integrated Product Teams (IPTs) to ensure evolving design addresses program needs and adheres to Human Interface design requirements
Added 22 mins ago
Sentinel - Staff Systems Engineer - Mechanical Systems Design Integrator
Northrop Grumman
Roy · Manhattan Beach
The Staff Mechanical Systems Design Integrator (level 5 engineer) will work with our Sentinel Systems Engineering & Integration (SE&I) Business Unit’s System Integration & Sustainment (SIS)…
Added 22 mins ago
Sentinel - Staff Systems Engineer - 17379
Northrop Grumman
Roy
Northrop Grumman Defense Systems is seeking a Staff Systems Engineer (level 5) to join its team. This position is in Roy, Utah and will support the Sentinel program. Northrop Grumman…
Added 23 mins ago
TT
Senior Security Engineer
True Talent Solutions Partners
San Francisco, CA
- $190,000 to $250,000 USD / year
- Four to eight years of application or product security experience, including at least three years focused primarily on hands-on work such as secure code reviews, threat modeling,…
Added 42 mins ago
Engineer - Mfg
Hunter Defense Technologies Inc
Geneva, OH
…cost-effective manufacturing processes and methods in accordance with product specifications and quality standards. Recommends and implements improvements to production processes, methods…
Added 42 mins ago
Project Engineer
Magnetic Technologies Corporation
Greenville, OH
…launch. Develops and improves manufacturing processed by studying product and manufacturing methods, and driving post-launch review. Duties and responsibilities - Cost Estimating & Quoting:…
Added 43 mins ago
Mechanical Engineer 4
The HEICO Companies, LLC
Cuyahoga Falls, OH
The Mechanical Engineer 4 will perform mechanical machine design engineering duties, product design, product customizations, resolving design and documentation issues, with primary focus on…
Added 43 mins ago
Network Design Engineer
HUBBELL INCORPORATED DELAWARE
Hamilton, OH
Job Overview The Design Engineer is responsible for the Burndy Small Hydent product family. The position works closely with Manufacturing, Product Management, Design Engineering, Sourcing,…
Added 43 mins ago
Fixture Engineer
Ohiomeansjobs Lake County
Mentor, OH
OhioMeansJobs | Lake County is accepting resumes for the following position: Position: Fixture Engineer Location: Mentor, OH Hours: Full Time Pay: Based On Experience Position ID: 3282…
Added 43 mins ago
Design Engineer III
Ohiomeansjobs Lake County
Mentor, OH
OhioMeansJobs | Lake County is accepting resumes for the following position: Position: Design Engineer Location: Mentor, OH Hours: Full Time Pay: Based On Experience Position ID: 3276…
Added 43 mins ago
BF
Backend Modernization Engineer
BC Forward
Cincinnati, OH
- $70 to $72 USD / hour
Added 44 mins ago
Lead Saviynt Engineer
Wells Fargo
COLUMBUS, OH
Wells Fargo is seeking a Lead Software Engineer in Cybersecurity to support the enterprise Identity Governance & Administration (IGA) modernization program. Learn more about career areas…
Added 44 mins ago
BF
Full Stack Java Developer
BC Forward
Columbus, OH
- $65 to $70 USD / hour
Added 52 mins ago
TT
Senior Solutions Engineer, Digital Native and Mid-Market
True Talent Solutions Partners
Remote, United States
- $147,000 to $175,000 USD / year
- Lead technical discovery, diagnose customer issues, and advise on solution design.
Added 52 mins ago
TT
Product Engineer
True Talent Solutions Partners
Remote, United States
- $185,000 to $485,000 USD / year
…tools. You will work closely with operations teams and own product decisions from problem discovery through design and…
Added 52 mins ago
TT
Senior Software Engineer
True Talent Solutions Partners
San Francisco, CA
- $200,000 to $240,000 USD / year
- Lead the design and implementation of complex product features from technical planning through delivery.
Added 52 mins ago
TT
Member of Technical Staff, AI Agents
True Talent Solutions Partners
New York, NY
- $150,000 to $300,000 USD / year
- Embed with teams to understand their workflows, data, and operating needs, then design systems that improve how work gets done.
Added 54 mins ago
RI
Staff Turbomachinery Engineer
Radiant Industries
El Segundo, CA
- $200,500 to $314,475 USD / year
Radiant is seeking a Staff Turbomachinery Engineer to serve as the Responsible Engineer for the turbomachinery within our nuclear-driven power generation system. This role owns the…
Added 1 hour ago
Senior Data Platform Engineer
PushPress
Remote, United States
…and our internal teams. We're hiring our first Data Platform Engineer to own the foundation that all of it runs on: how data gets in, where it lives, how it's governed, how it's extracted…
Added 1 hour ago
Sr Software Engineer- Mobile Development
Boyd Gaming
Las Vegas, NV
…responsibility of the Development Team. This position is focused on the design, development, deployment and support of enterprise and customer-facing mobile applications across iOS and…
Added 1 hour ago
Associate Electrical Engineer
McDermott
Houston, TX
In general, Electrical Engineers Perform electrical engineering for power, oil and gas, and petrochemical projects. Design, analyze and prepare complex project deliverables for power…

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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