Senior .Net Engineer

Castillians

Senior .Net Engineer at Castille Resources building and maintaining telecommunication software solutions. Involved in code development, system analysis, and resolving technical issues for OSS/BSS systems.

Posted 7/21/2026full-timeRemote • 🇺🇸 United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in .Net technologies, particularly C# and ASP.NET, while effectively developing and implementing software systems. Proficient in OSS/BSS systems and AI tools, including Microsoft Copilot, with strong problem-solving and collaboration skills.

Highest-signal resume keywords

5 Years Of Experience In Software Engineering.Net Technologies (C#, ASP.NET)OSS/BSS SystemsMicrosoft CopilotAgile Methodologies

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

.Net TechnologiesC#ASP.NETSoftware Development LifecycleAgile MethodologiesTroubleshootingProblem-Solving

Soft Skills

Collaborative Teamwork

Tools & Technologies

Microsoft CopilotSalesforceCamunda

Industry Keywords

OSS SystemsBSS SystemsCRMBillingIntegration

Tech Stack

Tools & technologies

ASP.NET.NET

About the role

Key responsibilities & impact

Develop and implement software systems and applications
Analyze current systems, create, test, implement, and maintain programs
Track work in ticketing system and ensure clarity, conciseness, and accuracy
Write clean and well-commented code using latest technologies
Work on OSS/BSS systems including CRM, Billing, and Integration
Diagnose and resolve issues and liaise with team members
Prepare UAT and SIT test cases and training material
Conduct testing and performance evaluation of Microsoft Copilot
Create cases on Salesforce project
Handle minor tickets and support Camunda processes

Requirements

What you’ll need

5 years of experience in software engineering
Proficiency in .Net technologies (C#, ASP.NET)
Familiarity with OSS/BSS systems
Knowledge of AI tools, especially Microsoft Copilot and ChatGPT
Experience in software development lifecycle and Agile methodologies
Ability to work collaboratively in a team environment
Strong troubleshooting and problem-solving skills

Benefits

Comp & perks

🌐 Worldwide ❌ Jobs You've Hidden ⭐️ Saved Jobs ✅ Applied Jobs ✉️ Email Alerts 👤 Account Castillians Website LinkedIn All Job Openings 51 - 200 employees Founded 2006 Castillians is a company whose publicly available text is inaccessible without JavaScript; the provided content only shows a message asking the user to enable JavaScript. No information about the company's product, services, industry, or target customers can be determined from this text alone. Senior .Net Engineer Job not on LinkedIn 🔥 34 minutes ago 🇺🇸 United States – Remote ⏰ Full Time 🟠 Senior 🔙 Backend Engineer ASP.NET .NET Apply Now Find Hiring Managers Customize resume + cover letter Report problem ☆ Save ☑️ Mark as applied ❌ Hide 📋 Description
Develop and implement software systems and applications
Analyze current systems, create, test, implement, and maintain programs
Track work in ticketing system and ensure clarity, conciseness, and accuracy
Write clean and well-commented code using latest technologies
Work on OSS/BSS systems including CRM, Billing, and Integration
Diagnose and resolve issues and liaise with team members
Prepare UAT and SIT test cases and training material
Conduct testing and performance evaluation of Microsoft Copilot
Create cases on Salesforce project
Handle minor tickets and support Camunda processes 🎯 Requirements
5 years of experience in software engineering
Proficiency in .Net technologies (C#, ASP.NET)
Familiarity with OSS/BSS systems
Knowledge of AI tools, especially Microsoft Copilot and ChatGPT
Experience in software development lifecycle and Agile methodologies
Ability to work collaboratively in a team environment
Strong troubleshooting and problem-solving skills Apply Now 📊 Check your resume score for this job Improve your chances of getting an interview by checking your resume score before you apply. Check Resume Score Similar Jobs Tech Architect, Lead Developer – .NET 🔥 1 hour ago Embrace Software Inc 201 - 500 💸 Finance 📚 Education Website LinkedIn All Job Openings Tech Architect/Lead Developer at Embrace Software building online banking AI solutions. Overseeing development processes and team management within a remote-first environment. 🇺🇸 United States – Remote ⏰ Full Time 🟠 Senior 🔙 Backend Engineer Angular ASP.NET AWS Azure Bootstrap Cloud JavaScript MS SQL Server React SQL Terraform .NET Backend Engineer – Freelance 🔥 12 hours ago Make - letsMake.com | A studio making world-class products, platforms & systems 💯 11 - 50 ☁️ SaaS 🤝 B2B ⚡ Productivity Website LinkedIn All Job Openings Backend Engineer crafting large-scale software using AI-first techniques. Building backend services with TypeScript and Node.js while collaborating in a remote-first environment. 🇺🇸 United States – Remote 💰 $20k Seed Round on 2014-08 ⏰ Full Time 🟡 Mid-level 🟠 Senior 🔙 Backend Engineer JavaScript Node.js TypeScript Backend Engineer 🔥 14 hours ago Clerkie 1 - 10 💸 Finance 💳 Fintech ☁️ SaaS Website LinkedIn All Job Openings Backend Engineer building and maintaining backend services for Clerkie's fintech platform. Collaborating on system reliability and contributing to technical decisions in a remote-first environment. 🇺🇸 United States – Remote 💵 $90k - $150k / year 💰 $2M Pre Seed Round on 2019-05 ⏰ Full Time 🟡 Mid-level 🟠 Senior 🔙 Backend Engineer JavaScript MongoDB Node.js NoSQL Senior Director, AI Platform Architecture 🔥 14 hours ago Thermo Fisher Scientific 10,000+ employees 🧬 Biotechnology 💊 Pharmaceuticals 🔬 Science Website LinkedIn All Job Openings Senior Director of AI Platform Architecture at Thermo Fisher leading the development of foundational AI capabilities. Spearheading innovative solutions for drug development and clinical research across global teams. 🇺🇸 United States – Remote 💵 $167.5k - $278k / year ⏰ Full Time 🟠 Senior 🔙 Backend Engineer 🦅 H1B Visa Sponsor Cloud Senior Software Development Engineer – Java/Angular 🔥 15 hours ago CVS Health 10,000+ employees ⚕️ Healthcare Insurance 🛒 Retail 🧘 Wellness Website LinkedIn All Job Openings Senior Software Development Engineer at CVS Health developing software solutions in a collaborative Agile team. Focusing on Java and frontend technologies to support health solutions. 🇺🇸 United States – Remote 💵 $92.7k - $185.4k / year ⏰ Full Time 🟠 Senior 🔙 Backend Engineer Angular J2EE Java React Spring Spring Boot SpringBoot View More Backend Engineer Jobs 🌐 Worldwide Built by Lior Neu-ner. I'd love to hear your feedback — Get in touch via DM or support@remoterocketship.com Search Search Jobs by country Search jobs by city Search jobs by job title Search entry-level jobs Search junior-level jobs Search senior-level jobs Search jobs by tech stack Search jobs by contract type Search remote internships Search remote part-time jobs Remote jobs Anywhere in the World Companies Hiring Anywhere in the World Companies Hiring Sales People Anywhere in the World Companies Hiring Software Engineers Anywhere in the World Resources Advice Tips for finding remote jobs Interview questions and answers Resume examples Cover letter examples Post a job Affiliates Privacy policy Terms of service Job board SEO course AI Apply Copilot OpenClaw job finder Find jobs using your resume Jobs by Country Remote jobs anywhere in the world (Worldwide remote jobs) Remote jobs United States Remote jobs Australia Remote jobs Brazil Remote jobs Canada Remote jobs France Remote jobs Ireland Remote jobs Germany Remote jobs Netherlands Remote jobs Spain Remote jobs UK Popular Jobs Remote data analyst jobs Remote customer support jobs Remote executive assistant jobs Remote marketing jobs Remote product designer jobs Remote product manager jobs Remote project manager jobs Remote recruiter jobs Remote sales jobs Remote software engineer jobs Jobs by Type Remote full-time jobs Remote part-time jobs Remote contract jobs Remote internship jobs Remote entry-level jobs Remote jobs with no experience required Remote junior jobs (1-3 years of experience) Digital nomad jobs Remote jobs with no degree required Freelance remote jobs Temporary remote jobs Remote jobs hiring now Stay at home mom jobs