Senior Backend Engineer — .NET & Legacy Modernization
Facilityos
FacilityOS is seeking a Sr. Back-End Engineer to join a hybrid team that meets in the office three times a week. You will ramp quickly, work on legacy systems, and apply strong architectural principles to improve delivery throughput without compromising quality. The ideal candidate has deep .NET backend experience, strong design patterns, cloud-native SaaS knowledge, and a proactive mindset to deliver high-quality software with minimal supervision. #J-18808-Ljbffr Facilityos
Vacancy posted 4 days ago
Similar jobs that could be interesting for youBased on the Senior Backend Engineer — .NET & Legacy Modernization in Annapolis, MD vacancy
- ...capable Sr. Back‑End Engineer who can ramp up quickly... ...comfortable navigating legacy systems, applying... ...candidate brings strong backend engineering experience... ...integration points, and modernization opportunities. Collaborate... ...in backend .NET Framework / .NET Core...Senior.netWork at office
$125k - $142k
...is seeking a qualified Senior Training Coordinator to... ...New Equipment Training (NET) as well as ensuring... ...provider of mission-critical engineering and technology solutions. Founded on a legacy of excellence dating... ...We don't just support modernization; we define it. Entarian...Senior.netContract work$75k - $80k
...Network (Dodge) is looking for a Senior Account Executive who will be responsible for driving net new logo sales of the full... ...build thriving communities. Our legacy is deeply rooted in empowering... .... Dodge is the catalyst for modern construction. Salary Disclosure...Senior.netFull timeWork experience placementWork at officeLocal areaRemote workHome officeWork visaDodge Construction Network
Annapolis, MD3 days ago$140k - $210k
...confidence. We are hiring a Senior Product Manager to join... ...partner closely with engineering and cross‑functional... ...adoption. Launching a net‑new capability requires... ...development lifecycle and modern delivery practices,... ...: moving workloads off legacy frameworks onto modern...Senior.net$190k - $240k
...Belay Technologies is seeking a Senior (Integration) Software Engineer to join our intel team. The right... ...applications utilizing a variety of modern and legacy technology stacks. Depending on the... ...Stack: Java AWS MySQL ASP.Net Linux SpringBoot Docker...Senior.netContract workWork experience placementFlexible hoursBelay Technologies
Annapolis, MD4 days ago$125k - $140k
...are seeking a Full Stack Software Engineer with a strong backend focus to join a growing product engineering... ...stack, contributing to both legacy system modernization and modern, cloud-native... ...hands-on experience with modern .NET technologies, cloud platforms, and....netFull timeLatitude
Annapolis, MD13 hours ago$190k - $240k
Overview Senior System Administrator to join one of our... ...you will help design, modernize, secure, and sustain... ...with experts in software engineering, cloud computing, DevSecOps... ...platforms to modernize legacy systems, automate... ...native scripting) PHP .NET C# Microsoft SQL Server...Senior.netFlexible hours- ...seeks a seasoned SQL Software Developer to modernize and sustain enterprise financial systems... ...will work directly with customers and engineering teams to deliver reliable, scalable SQL-... ...performance and maintainability in a legacy production environment. The role spans requirements...Senior
$122k - $253k
## Principal Senior CNO Developer (Onsite)Applyremote type: Onsite... ...enablement, and software modernization. Nightwing brings disruptive... ...applications using Visual Studio or .NET environments; UNIX... ...and ASLR, and modern software engineering concepts* Experience with reverse...Senior.net$177k - $198k
...end-to-end software, systems, and network engineering services to support Integrated Discovery... ...will lead, evolve, and maintain a dynamic, modern DevOps architecture, often based on open-... ...installing, configuring, and maintaining net devices; configuring various routing...Senior.net- rePurpose Global is hiring a Backend Engineer to build scalable server-side services and APIs in a remote-friendly, East Coast environment. You will own cloud infrastructure on AWS, drive CI/CD, and work across teams to deliver high-performing systems. Candidates should...SeniorRemote job
- United Airlines in Annapolis is seeking a Senior Developer to lead a team delivering web and mobile applications used by Technical Operations. You will focus on backend microservices and APIs, serving as a development lead across multiple products. You will drive solution...Senior.net
- ...requires extensive travel nationwide to meet clients, attend conferences, and support partner engagement. You will act as a trusted advisor, demonstrate investment acumen on ETFs and models, and build strategic relationships to grow Net New #J-18808-Ljbffr State StreetSenior.net
- Entarian is seeking a Senior Training Coordinator to support the PdM M2S2 program. The role involves coordinating trainers for NET, maintaining training records, and briefing leadership on instructor status while ensuring training across a radar systems portfolio (AN/TPQ...Senior.net
- ...About the job Senior SharePoint Developer Location: Annapolis, MD. (Hybrid) 5-year contract. Minimum/Required Qualifications... ...-- Microsoft Power Apps integration, JavaScript, C#, SQL and .NET frameworks -- Supporting daily use of and enhancements to existing...Senior.netContract workRemote work
Quantum Strides LLC
Annapolis, MD3 days ago - Entarian seeks a Senior Training Coordinator to support the PdM M2S2 program for radar systems (AN/TPQ-50 and AN/TPQ-53). The role focuses... ...training, fielding, maintenance, and sustainment, coordinating NETs and instructor resources across austere locations. Primary...Senior.netContract work
- Itlearn360 is seeking a Senior Computer Programmer responsible for providing IT support and software development for the State of Maryland. Ideal candidates will have over 8 years of experience in .NET/C# and Microsoft SQL Server, along with hands-on experience across the...Senior.net
- DescriptionTyler Technologies’ Maryland Enterprise is seeking candidates for a Senior .NET Software Engineer. The selected candidate will be part of a strong development team and they will be responsible for translating complex business requirements into functional web-...Senior.net
$101.4k - $154.65k
...processes with the applications and integration engineers to meet all necessary compliance and... ..., particularly Python, SQL, and/or C# .NET. Experience analyzing business requirements... ...highly preferred. Working knowledge of modern data platform technologies — such as cloud...Senior.netTemporary workWork at officeFlexible hours- A leading tech firm located in Maryland is seeking a Senior Information Technology Architect to provide expertise in architecture data... ...in project supervision. The role focuses on transitioning from legacy systems and requires excellent communication and leadership skills...Senior
- ...Division of Early Childhood (DEC). This contract role oversees the CCATS/CCS system family, manages vendor performance, and drives modernization toward an AWS cloud infrastructure while maintaining strict compliance with privacy and security requirements. You will...SeniorContract work
$80k - $175k
...solve complex workforce challenges through a modern, end-to-end HCM platform and service... ...Responsibilities What You'll Do Hunt and close net-new enterprise business with... ...you attach. Partner with Solutions Engineers, RevOps, and a world-class channel ecosystem...Senior.netBase plus commissionLocal areaPaycor
Annapolis, MD2 days ago$80k - $140k
...expense planning. Maintains volume data in reporting format conducive to presentation to senior leadership (ex: historical trends for last 3 years, seasonality trends, etc.). Develops net patient revenue projections by incorporating relevant rate, volume, payer mix...Senior.netFull time- ...available after acclimation and training. The role emphasizes backend services, Java, Spring Boot, AWS, Docker, and Kubernetes, with modern UI experience. Ideal candidates will have extensive software engineering experience, strong communication skills, and familiarity...SeniorRemote job
$185k - $225k
...Role At Datavant, we value Engineers who solve problems, build... ...of software engineering. As a Senior Full Stack Engineer, you will... ...user experiences to scalable backend systems and data platforms. You... ...engineering experience, including modern frontend development and...SeniorDatavant
Annapolis, MD1 day ago- ...Security+) to serve as fielding/NET team members to conduct... ...PdM, the gaining unit, Force Modernization, TYAD, and the Field Service... ...effective software and systems engineering, field support, training and... ...intermediate, journeyman and senior. Consider us for your career...Senior.netContract work
- ...with our clients to solve complex operational challenges, modernize enterprise systems, and transform data into actionable insights... ...Position Overview ReefPoint Group is seeking Data Engineers and Senior Data Engineers to join our growing Data & AI practice. This...Senior
Reef Point Group
Annapolis, MD13 days ago $140k - $150k
...Sabre Systems is currently recruiting for a Senior Logistician to support the Combat... ...Active TS with SAP eligibility, existing C-Net access, and SCI Access Indoctrination Must... ...Experience with design interface and systems engineering. #LI-EN1 Compensation Statement At Sabre...Senior.netContract workFor contractorsRemote work$105k - $135k
...growing team! We are currently seeking a Project Manager, Civil Engineer to work in a technical support role with highly skilled professionals... .... We seek someone who views water resources work as a net good and is energized by the opportunity to help solve real problems...Senior.netFull timeContract workWork experience placementFor subcontractorRelocation package- Senior Computer Programmer Project: Help Desk, Application and System Support Client: State... ...(25) ROW locations. Provide software engineering support, including, but not limited to, planning... ...development experience, including .NET/C# and Microsoft SQL Server. Hands‑on...Senior.netContract workFor contractorsWork at officeLocal area
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Backend Engineer — .NET & Legacy Modernization. Be the first to apply!
Related searches
- senior safety specialist Annapolis, MD
- senior technology project manager Annapolis, MD
- remote senior business analyst Annapolis, MD
- senior manager clinical operations Annapolis, MD
- senior supervisor Annapolis, MD
- senior leadership Annapolis, MD
- senior manager data science Annapolis, MD
- senior business analyst Annapolis, MD
- senior relationship manager Annapolis, MD
- senior director engineering Annapolis, MD