Jobs in the United States

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Added 3 mins ago
Etch Engineer - Process Owner
Samsung Austin Semiconductor, LLC.
1530 FM 973 Taylor, TX
…electronics, memory devices, RF technologies, and advanced display applications. Participate in cost-reduction and risk-assessment initiatives involving process hardware qualification and…
Added 5 mins ago
P&
Senior Associate, Enterprise Resilience Programs
Pharmacia & Upjohn Company
NY
- $82,700 to $137,900 USD / year
Proficiency with Microsoft 365 applications and reporting tools.
Added 8 mins ago
Staff Engineer - Developer Productivity
Jobgether
Remote, United States
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Staff Engineer - Developer Productivity based in United…
Added 8 mins ago
Staff Analytics Engineer
Jobgether
Remote, United States
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Staff Analytics Engineer based in United States.
Added 8 mins ago
Senior Security Consultant
Jobgether
Remote, United States
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Security Consultant based in United States.
Added 8 mins ago
Senior Full Stack Engineer
Jobgether
Remote, United States
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Full Stack Engineer based in United States.
Added 8 mins ago
Senior Data Scientist
Jobgether
Remote, United States
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Data Scientist based in United States.
Added 8 mins ago
Senior / Staff SWE - Backend (Grader)
Jobgether
Remote, United States
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior / Staff Software Engineer - Backend (Grader) based…
Added 8 mins ago
Project Manager
Jobgether
Remote, United States
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Project Manager based in United States.
Added 11 mins ago
AA
Intern - Software Engineer (Summer 2027)
Alaska Airlines
WA-SeaTac
- $30 USD / hour
Receive, understand and clarify requirements from software development.
Added 13 mins ago
Software/Web Developer (SharePoint) – TS/SCI required
GD Information Technology, Inc.
United States
Advance how our customers operate while you advance your career. Join GDIT as a Software/Web Developer (SharePoint) Associate and build an impactful career in enterprise IT, collaborating…
Added 13 mins ago
Senior Cloud Platform and DevSecOps Engineer - TS/SCI with Polygraph
GD Information Technology, Inc.
United States
Implement software supply-chain controls including SBOM generation, dependency and image scanning, signing, provenance, allowlists, and promotion gates.
Added 13 mins ago
GI
Help Desk Technician III
GD Information Technology, Inc.
United States
- $23.3 to $29.9 USD / hour
Core HW and SW – Support for common, standard user workstations, and associated software (standard/common configuration/build) deployed throughout the organization. Review, maintain, and…
Added 22 mins ago
LU
COLLEGE CAREER CENTER TECHNICIAN
Lynwood Unified School District
Lynwood, CA
- $21.49 to $26.83 USD / hour
…operating standard office equipment including utilizing pertinent software applications; preparing and maintaining accurate records; and planning and managing…
Added 24 mins ago
CO
Systems Analyst I/II
City of Escondido
Escondido, CA
- $44.03 to $66.76 USD / hour
…of information systems and supporting computer hardware and software applications; troubleshoots, analyzes and resolves systems and applications hardware and software problems; and provides…
Added 34 mins ago
Habitat GIS and Data Specialist
Pacific States Marine Fisheries Commission
Portland, OR
Produce high-quality maps, dashboards, web applications, and data visualizations that support habitat science, management, and decision-making.
Added 34 mins ago
PH
FOH Manager 4.0 Food & Beverage Team
Progressive HR Strategies Inc
New Orleans, LA
- $45,000 to $60,000 USD / year
· Proficiency with Microsoft Office applications and restaurant. management software platforms; Margin Edge, cost management software, and spreadsheets skills.
Added 35 mins ago
Lead Product Owner - Edge
Lumen
Pierre, SD
Lumen is the trusted network for the AI‑powered world, connecting people, data, and applications through our expansive fiber network and connected ecosystem. We enable secure,…
Added 41 mins ago
DevOps + Go (Platform Engineer )
Jobgether
Remote, United States
The DevOps + Go Platform Engineer will help build and evolve an internal developer platform and CI/CD ecosystem supporting multiple products and infrastructure environments. This hands-on…
Added 47 mins ago
Software Engineer II, Early Career
Google
Mountain View, CA · Kirkland, WA · Los Angeles, CA · Madison, WI · New York, NY · Palo Alto, CA · Pittsburgh, PA · Raleigh, NC · Durham, NC · San Bruno, CA · Seattle, WA · Sunnyvale, CA
Applicants in the County of Los Angeles: Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance…
Added 50 mins ago
Staff Geospatial Analyst
Vantor Inc.
Orlando, FL
…The Senior GIS Analyst will work closely with product owners, software engineers, data specialists, and subject-matter experts to deliver accurate, interoperable, and production-ready…
Added 1 hour ago
Product Manager (New Product Development)
Jobgether
Remote, United States
…experienced professional passionate about building cloud-native software applications and delivering measurable user value. You will take ownership of a product backlog, working closely…
Added 1 hour ago
J
Network & Infrastructure Engineering
Jobgether
Remote, United States
- $110,000 to $136,000 USD / year
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Network & Infrastructure Engineering professional based in…
Added 1 hour ago
J
Compensation Manager
Jobgether
Remote, United States
- $140,000 to $200,000 USD / year
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Compensation Manager based in the United States.
Added 1 hour ago
HC
Fire and Life Safety Educator
Harris County Emergency Services District No. 48
Katy, TX
- From $57,969 USD / year
7. Proficiency in Microsoft Office, presentation software, and digital media tools.

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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