Jobs in the United States

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Added 9 mins ago
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Lead Principal Application Software Engineer- Forward Deployed Engineer
Oracle
Albany, NY
- $104,600 to $264,100 USD / year
Oracle Customer Success Services (CSS) is seeking a Senior Principal Forward Deployed Engineer to lead the delivery of strategic AI and data transformation programs for Oracle's largest…
Added 9 mins ago
Software Test Engineer
WCG Clinical
Albany, NY
The Software Test Engineer is a member of the Quality Engineering team, responsible for supporting the testing, validation and delivery of WCG namedproducts and systems.The role applies…
Added 9 mins ago
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Quality Engineer
Volt Management Corp
ROCHESTER, NY
- $50 to $55 USD / hour
Added 9 mins ago
Senior Associate, Cyber Forward Deployed Engineer
KPMG LLP
ROCHESTER, NY
…currently seeking a Senior Associate, Cyber Forward Deployed Engineer to join our Clients, Technology & Innovation (CT&I) organization.Responsibilities: * Design, build, and ship…
Added 9 mins ago
Senior AI Engineer
Humana
New York, NY
As a Senior AI Applied Engineer, you will design, build, deploy, and operate production AI systems used at scale within one of the largest health insurers in the United States. You will own…
Added 10 mins ago
Senior Software Engineer, AI/ML, Google Labs
Google
New York, NY
Share Senior Software Engineer, AI/ML, Google Labs
Added 10 mins ago
Senior Full Stack Engineer
Humana
New York, NY
Humana is seeking a Senior Full Stack Software Engineer who will be responsible for building and enhancing the UI/UX layer of Humana's Enterprise Data Governance Platform and Control Plane.
Added 10 mins ago
Lead AI Automation Engineer
Humana
New York, NY
The Lead AI Automation Engineer will provide hands-on technical leadership for the design, engineering, and productionization of AI-enabled automation across the Data Governance…
Added 10 mins ago
Senior Engineer Workforce Tools & Integrations
The College Board
NEW YORK, NY
…students and thousands of schools we serve. We work across Product DevOps, Security, Network Engineering, and Infrastructure to design secure, scalable solutions using tools like Jira…
Added 10 mins ago
Lead Backend Engineer
The College Board
NEW YORK, NY
Lead Backend Engineer College Board - Technology - BigFuture Student Location: Remote - Candidates who live near CB offices have the option of being fully remote or hybrid (Tuesday and…
Added 10 mins ago
Senior Full Stack Engineer, AI Products Stout Strategy
Stout
NEW YORK, NY
…market, with the highest-quality work.As a Senior Full-Stack Engineer in our Applied Innovation Group, you get the best of both worlds: working at the frontier of AI and knowledge work,…
Added 10 mins ago
Manufacturing Engineer
HII
Syracuse, NY
HII-Mission Technologies is looking for a motivated individual to fill the role of Multi-Functional Manufacturing Engineer for their Syracuse, NY Manufacturing Operations. Under the…
Added 10 mins ago
Software Engineer
Yext
NY
…needs of our clients. We are looking for a Full Stack Software Engineer to help us build custom web and backend solutions for our enterprise clients. Our team features a Scrum development…
Added 10 mins ago
AI Transformation Engineer
Yext
NY
…30 to 60 day transformation sprints. As an AI Transformation Engineer, you build the production systems that make that real: retrieval, answer drafting, routing and evaluation on live data,…
Added 18 mins ago
Sr. Process Engineer, Drive Unit
Rivian
Normal, IL
Added 20 mins ago
ServiceNow Engineer - Secret Clearance
Jobgether
Remote, United States
As a ServiceNow Engineer, you will provide advanced engineering, development, and integration support for a large-scale enterprise ServiceNow platform within a federal IT environment. You…
Added 26 mins ago
Senior Staff Software Engineer, Machine Learning, ML Training
Google
Kirkland, WA · Seattle, WA · Sunnyvale, CA
…mobile; the list goes on and is growing every day. As a software engineer, you will work on a specific project critical to Google’s needs with opportunities to switch teams and projects as…
Added 26 mins ago
Senior Staff Security Engineer, Security Engineering, Cloud CISO
Google
Kirkland, WA · New York, NY · Seattle, WA · San Francisco, CA · Sunnyvale, CA
Cloud CISO Security Engineering is the team within the Cloud CISO organization responsible for helping ensure every product Cloud ships is as secure as it can be and increasing the…
Added 26 mins ago
Customer Engineer III, Cloud AI, Google Cloud
Google
Atlanta, GA · Austin, TX · Cambridge, MA · Houston, TX · New York, NY · Reston, VA · Miami, FL
As a Customer Engineer (CE) with a specialty in Cloud Artificial Intelligence (AI), you will partner with technical sales teams to differentiate Google Cloud to our customers. You will…
Added 29 mins ago
Vice President, Product and Solutions Engineering
Zeta
Remote, United States
This role joins two jobs that are usually split. The first is product: deciding which solutions go to banks, sponsor banks, and fintechs, how they are packaged and priced, and what gets…
Added 35 mins ago
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Senior Principal Software Systems Engineer
General Dynamics Mis
Boulder, CO
- $183,381 to $193,409 USD / year
As a Senior Principal Software Systems Engineer, you will provide architectural recommendations and design inputs to a cross functional team that develops complex software systems that…
Added 38 mins ago
Technical Support Engineer 2
Round Rock, TX · TX
As a Technical Support Engineer 2, you will be responsible for resolving AI Networking solutions as part of a team. You will work with global enterprise customers to resolve the issues…
Added 44 mins ago
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Mechanical Engineer
Actalent
North Canton, OH
- $40 to $45 USD / hour
Job Title: Associate Application Engineer, Intermediate (Mechanical Engineering)Job DescriptionThe Associate Application Engineer, Intermediate serves as a key technical expert who connects…
Added 47 mins ago
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Principal Engineer, New Products
PetDesk
Remote, United States
- $180,000 to $200,000 USD / year
The Principal Engineer, New Products is a senior technical leadership role that owns the system design vision for a new business line. This person sets the architecture, translates business…
Added 49 mins ago
Senior Infrastructure Engineer
Hellyeah AI
San Francisco, CA
We are looking for a Senior Infrastructure Engineer to build the reliable, scalable foundation behind our AI workflows, advertising operations, and data systems.

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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