Explore 4 c net python developer jobs from 3 hiring companies in New Castle, DE, US. Filter by remote, salary, experience, and company, then open any listing to apply.

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C Net Python Developer Jobs

Esri

Cadent

Lockheed Martin

Hybrid

Onsite

<div><h3>Security Clearance</h3><div>TS/SCI </div><h3>Shift</h3><div>First </div><h3>Direct/Indirect</h3><div>Direct </div><h3>Business Area</h3><div>Space </div><h3>Department</h3><div>72C1A00:CS3 Space Security </div><h3>Relocation/Housing Stipend Available</h3><div>Possible</div><h3>Job Code/Title</h3><div>E1074:Software Engineer Stf </div><h3>Job Class</h3><div>Software Engineering</div><h3>Job Category</h3><div>Experienced Professional</div><h3>Program</h3><div>Space Security - Fish Hooks</div><h3>Req Type</h3><div>Full-Time</div><h3>Job Description</h3><div>Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future.  <br> <br>At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity. <br> <br>Join us in shaping a new era in space and find a career that's built for you.  <br><br>Within LM Space, the Fishhooks Program is looking for a highly motivated individual to join the program area as a Software Engineer Senior Staff to support the development team. As part of an Agile team, you will have the opportunity to work on a variety of tasks in various areas across the mission and collaborate with the development teams, customers, and subject matter experts.  <br> <br>If you are looking for a challenging, collaborative, fast paced environment then this is the position for you.  <br> <br>Note: This position requires a government security clearance, US citizenship is a requirement for consideration.  <br><br>In this position you will:  <br><br>• Collaborate with an exceptional team of Software Engineers implementing solutions and developing new features for an RPO mission planning, scheduling, and command and control application.  <br><br>• Serve as a software developer on an Agile team tasked with developing cutting edge web applications within multiple classification domains to serve an emerging area of protecting USG space assets.  <br><br>• Participate in daily scrums, software sprint/release planning, demos, and retrospectives.  <br><br>• Design, develop & demonstrate software capabilities to both internal and external partners.  <br><br>• Work on a mission that you can be proud of, knowing that you are making a lasting difference in the world and in the Space domain.</div><h3>Basic Qualifications</h3><div>• Bachelor's degree in a related discipline, such as Computer Science, Software Engineering or other engineering disciplines or equivalent experience  <br><br>• Experience in software development using programming or scripting languages such as C#, JavaScript, Java, or Python  <br><br>• Software design, problem solving, and troubleshooting skills  <br><br>• This position requires an Active DOD Security Clearance to begin employment, at a minimum level of: Top Secret with active SCI  <br><br>• Experience working in an Agile development environment, using tools such as Jira and Confluence</div><h3>Desired skills</h3><div>• Full development lifecycle experience  <br><br>• Experience with the frameworks .NET Core and Angular  <br><br>• Experience working as a member of an Agile Scrum or Kanban team  <br><br>• Experience with databases (PostgreSQL & Redis)  <br><br>• Experience with GitLab CI/CD - Deployment pipelines, automated build, and/or configuration tools  <br><br>• Experience will cloud native development (Docker, Kubernetes, Helm)  <br><br>• Familiarity with Mission Planning software applications for satellites, antennas, and ground hardware assets  <br><br>• Familiarity with proximity operations, & satellite mission planning  <br><br>• Experience with LM’s Conductor or Compass products   <br><br>• Experience with DevSecOps  <br><br>• Experience with Git, JIRA, Confluence  <br><br>• Ability to communicate effectively and work in a collaborative environment  <br><br>• Familiarity with the Space Domain   <br><br>• Knowledge of Orbital dynamics  <br><br>• Experience producing quality documentation  <br><br>• Ability to obtain/maintain a TS/SCI clearance; US citizenship is required (no clearance is required to start; unclassified work is available until the clearance is obtained)  <br><br> Applicants selected will be subject to a government security investigation and must meet eligibility requirements for access to classified information, and must maintain the required security throughout the course of employment<br><br>#LMSpaceSoftwareEng<br>#SpaceSecurity</div><h3>State</h3><div>Pennsylvania </div><h3>Virtual</h3><div>no</div><h3>City</h3><div>King of Prussia </div><h3>Zip</h3><div>19406</div><h3>EEO</h3><div><strong>Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.</strong><br><strong>The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.</strong></div><h3>*</h3><div>At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work. <br> <br>With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility.<br><br>If this sounds like a culture you connect with, you’re invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on <a href="https://www.lockheedmartinjobs.com/">Lockheed Martin Jobs</a>, and apply for roles that align with your qualifications.</div><h3>City, State</h3><div>King of Prussia-PA </div><h3>Other Important Information</h3><div>By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match.  Should this match be identified you may be contacted for this and future openings.</div><h3>Ability to work remotely</h3><div>Onsite Full-time: The work associated with this position will be performed onsite at a designated Lockheed Martin facility.</div><h3>Work Schedule Information</h3><div>Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees.  Schedules range from standard 40 hours over a five day work week while others may be condensed.  These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.</div><h3>Security Clearance Information</h3><div>This position requires a government security clearance, you must be a US Citizen for consideration.</div><h3>Work Schedule</h3><div>9x80 every other Friday off </div><h3>Select the Telework classification for this position</h3><div>Employee will work on-site full-time </div><h3>National Pay Statement</h3><div><strong>Pay Rate:</strong> The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $113,900  - $200,905. For states not referenced above, the salary range for this position will reflect the candidate’s final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer.<br><strong>Benefits offered:</strong> Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays. <br>(Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.<br>This position is incentive plan eligible.</div><h3>Premium Pay Statement</h3><div><strong>Pay Rate:</strong> The annual base salary range for this position in most major metropolitan areas in California, Massachusetts, and New York is $131,000  - $227,125. For states not referenced above, the salary range for this position will reflect the candidate’s final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer.<br><strong>Benefits offered:</strong> Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays.<br>This position is incentive plan eligible.</div></div>

Software Engineer Staff - (TS/SCI)

Software Engineer Staff

Active TS/SCI clearance, US citizenship, BS in Computer Science/Software Engineering or related field; strong software development experience (C#, JavaScript, Java, Python); Agile with Jira/Confluence; .NET Core and Angular; PostgreSQL/Redis; GitLab CI/CD; Docker/Kubernetes; cloud native development.

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<p style="margin: 0px;">Cadent ignites seamless connections between brands, publishers, and consumers. Our predictive AI orchestrates outcomes across any platform, any media, and every stage of the customer journey. Learn more at Cadent.com.</p><p style="margin: 0px;"> </p><p style="margin: 0px;">Cadent is seeking a Backend Engineer Intern to join our team for Summer 2026. Interns will gain hands-on experience by working with our teams on real backend systems—not observing from the sidelines.</p><p style="margin: 0px;"> </p><p style="margin: 0px;">Each intern will also complete one or more individual projects, tailored to their skills and interests, and present their work to the Technology Leadership team at the end of the program. Project scope and timelines will be defined at the start of the internship.</p>

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<ul><li>Interns will support their assigned team with tasks that may include:</li><li>Attending team meetings</li><li>Performing technical research</li><li>Supporting supervisors and teammates on active initiatives</li><li>Using department-specific tools and software for day-to-day work</li></ul><p style="margin: 0px;"> </p><p style="margin: 0px;"><strong>Perks</strong></p><ul><li>Competitive pay</li><li>College credit (if applicable)</li><li>Intern development programming</li><li>Cross-team and interdepartmental Lunch & Learns</li></ul>

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<p style="margin: 0px;"><strong>Required:</strong></p><ul><li>Rising junior or senior pursuing a bachelor’s degree in Computer Science or a related field</li><li>Strong programming fundamentals in at least one object-oriented language (e.g., C#, Python)</li><li>Understanding of how APIs work (HTTP, request/response, basic REST concepts)</li><li>Familiarity with relational databases and writing basic SQL queries</li><li>Ability to debug problems and reason through backend logic</li><li>Experience building projects beyond coursework (projects, internships, or co-ops)</li><li>Strong written and verbal communication skills</li><li>Self-motivated, collaborative, and willing to take initiative</li></ul><p style="margin: 0px;"><strong>Work Commitment:</strong></p><ul><li>Full-time: 40 hours per week during the internship term</li></ul><p style="margin: 0px;"> </p><p style="margin: 0px;"><strong>Nice to Have (Not Required)</strong></p><ul><li>Experience with .NET / C#</li><li>Exposure to cloud or serverless technologies (e.g., AWS Lambda, Azure Functions, GCP)</li><li>Basic understanding of authentication, APIs, or distributed systems</li><li>Experience with Git, CI/CD, or deployment workflows</li></ul><p style="margin: 0px;"><strong>What Success Looks Like</strong></p><ul><li>By the end of the internship, you will:</li><li>Deliver 1–2 backend features or enhancements end-to-end</li><li>Write and modify production-ready API code</li><li>Work with real datasets and understand data flow through backend systems</li><li>Navigate and contribute confidently to a modern backend codebase</li></ul><p style="margin: 0px;"><strong>Interview Process</strong></p><ul><li>We focus on a practical, no‑nonsense interview process:</li><li>Walkthrough of a project you’ve built (what worked, what didn’t, and lessons learned)</li><li>Basic API design or coding exercise (language-flexible)</li><li>SQL questions (joins, filtering, simple aggregation)</li><li>Discussion of how you would design or debug a simple backend workflow</li></ul><p style="margin: 0px;"><strong>Why Join Cadent?</strong></p><ul><li>Real backend engineering experience</li><li>Exposure to production APIs, databases, and cloud systems</li><li>Direct mentorship from experienced engineers</li><li>Opportunity for full-time conversion based on performance</li></ul><p style="margin: 0px;"> </p><p style="margin: 0px;">So, if the leading edge of media technology is the place you want to be, please contact us today and let’s start the conversation!</p><p style="margin: 0px;"> </p><p style="margin: 0px;"><em>Cadent is an Equal Opportunity Employer and is committed to supporting all it’s employees when it comes to Inclusion & Diversity. Cadent’s policy is to provide equal opportunity for applicants & employees without regard to race, color, religion, creed, gender, gender identity or expression, sexual identity or orientation, age, national origin or ancestry, citizenship, disability or medical condition (including pregnancy, childbirth, or related medical condition), sexual and reproductive health decisions, genetic information, marital status (including domestic partnerships and civil unions), pregnancy, culture ancestry, familial or caregiver status, military status, veteran status, socioeconomic status, unemployment status, status as a victim of domestic violence or any other basis prohibited by law. and will not discriminate against the basis of disability. This commitment is honored when it comes to decisions on hiring, recruiting, training, promotions, compensations, benefits, transfers and terminations.</em></p><p style="margin: 0px;"> </p><p style="margin: 0px;"><em>Cadent is seeking to actively engage with our employees from a wide variety of cultures and to connect with our clients differently. Our workforce has generational diversity that supports greater innovation when we maximize representation of all diversity. Our active employee resource groups promote engagement across all groups of individuals that are represented within the company and externally.</em></p>

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USD $20.00 - USD $25.00 /Hr.

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Backend Engineer Intern

Rising junior or senior pursuing a bachelor's in CS or related field; strong OOP in C# or Python; API basics; SQL; debugging; project experience; good communication; self-motivated.

<p><strong>Overview</strong></p>
<p>At Esri, our solution engineers are part of a highly skilled team that helps shape strategies on the effective adoption and use of Esri technologies. We invite you to use your problem-solving skills and passion for geospatial technology to become an integral part of the Geo Experience Center. Be part of the team that presents and demonstrates geospatial solutions and capabilities to executives and strategic customers when they visit our beautiful headquarters in Redlands, CA.</p>
<p>We’re looking for individuals who are naturally curious about technology, enjoy identifying and promoting strategies, and demonstrating solutions that will radically improve the way organizations address the challenges they face. You’ll work closely with a team that helps our customers take advantage of geospatial technologies to find answers to their challenges. You will also be working with Esri’s senior leadership team and maintain a close connection with the software development team</p>
<p><strong>Responsibilities</strong></p>
<ul>
<li><strong>Build relationships.</strong> Present, demonstrate, and support selling Esri software and solutions as part of the Geo Experience Center team. Support your team as you help plan and execute sales strategies.</li>
<li><strong>Be an expert.</strong> Become a subject matter expert as well as a technical expert of Esri’s complete platform and strategic products. Speak confidently with customers about Esri technologies and thoroughly communicate the Esri message. Be a visionary for our customers anticipating their needs and the technology trends that may impact them.</li>
<li><strong>Solve problems.</strong> Proactively craft and propose solutions that illustrate how geospatial technologies bring business value to our customers by addressing the critical business challenges they face.</li>
<li><strong>Spatial thinking.</strong>&nbsp;Understand spatial problem solving; employ spatial theory into practice; break problems down into component parts and seek multiple solutions; look for improvement opportunities; and integrate new and emerging concepts/trends appropriately.</li>
<li><strong>Tell our story.</strong> Present technical demonstrations of proposed solutions to customers. Successfully design presentations for technical and non- technical customers. Provide best practices related to the use and customization of Esri technology.</li>
</ul>
<p><strong>Requirements</strong></p>
<ul>
<li>2+ years of experience with Esri technology creating maps, performing spatial analysis, and configuring web applications</li>
<li>1+ years of experience in various industries</li>
<li>Knowledge of cloud computing concepts in addition to enterprise solutions</li>
<li>Remarkable presentation, interpersonal, and listening skills</li>
<li>Experience in mobile development and familiarity with Game Engine development</li>
<li>Strong programming or scripting experience with either one or multiple of these languages: .NET, C++ Kotlin, Swift, Python, JavaScript. Java</li>
<li>Understanding of ArcGIS from an IT context (such as hardware, storage, security, networking, web services, cloud computing)</li>
<li>Able to work in a high-stress, action-packed, intense teamwork environments</li>
<li>Ability to travel domestically or internationally up to 25-50%</li>
<li>Bachelor's degree in geography, computer science, or a related field</li>
<li>Visa sponsorship is not available for this posting. Applicants must be authorized to work for any employer in the U.S.</li>
</ul>
<p><strong>Recommended Qualifications</strong></p>
<ul>
<li>Ability to troubleshoot client issues related to Esri application deployment and system architecture</li>
<li>Basic understanding of artificial/machine learning concepts</li>
<li>Experience in technical consulting and conceptual solution design as well as an understanding of sales and business development processes</li>
<li>Experience incorporating real-time information stream with existing GIS data and IT infrastructure</li>
<li>Experience with geodatabases and underlying DBMS technology</li>
<li>Experience in and with 3D modeling software (Maya, Blender, Houdini)</li>
<li>Master’s degree in geography, computer science, or a related field</li>
</ul>
<p><strong>Questions about our interview process?&nbsp;</strong><a href="https://www.esri.com/content/dam/esrisites/en-us/media/pdf/interviewing-in-business-development.pdf"><strong>We have answers</strong></a><strong>.</strong></p>
<p>#LI-AC1</p>
<p>&nbsp;</p><div class="content-pay-transparency"><div class="pay-input"><div class="description"><p><strong>Total Rewards</strong></p>
<p>Esri’s competitive total rewards strategy includes industry-leading health and welfare benefits: medical, dental, vision, basic and supplemental life insurance for employees (and their families), 401(k) and profit-sharing programs, minimum accrual of 80 hours of vacation leave, twelve paid holidays throughout the calendar year, and opportunities for personal and professional growth. Base salary is one component of our total rewards strategy. Compensation decisions and the base range for this role take into account many factors including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs.</p></div><div class="title">A reasonable estimate of the base salary range is</div><div class="pay-range"><span>$76,960</span><span class="divider">&mdash;</span><span>$126,880 USD</span></div></div></div><div class="content-conclusion"><p><strong>The Company</strong></p>
<p>At Esri, diversity is more than just a word on a map. When employees of different experiences, perspectives, backgrounds, and cultures come together, we are more innovative and ultimately a better place to work. We believe in having a diverse workforce that is unified under our mission of creating positive global change. We understand that diversity, equity, and inclusion is not a destination but an ongoing process. We are committed to the continuation of learning, growing, and changing our workplace so every employee can contribute to their life’s best work. Our commitment to these principles extends to the global communities we serve by creating positive change with GIS technology. For more information on Esri’s Racial Equity and Social Justice initiatives, please visit our website <a href="https://www.esri.com/en-us/racial-equity/overview#engage-communities" target="_blank">here</a>.</p>
<p><strong>If you don’t meet all of the preferred qualifications for this position, we encourage you to still apply!</strong></p>
<p>Esri is an equal opportunity employer (EOE) and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law. If you need reasonable accommodation for any part of the employment process, please email <a href="mailto:askcareers@esri.com">askcareers@esri.com</a> and let us know the nature of your request and your contact information. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to from this e-mail address.</p>
<p><a href="https://www.esri.com/en-us/privacy/overview">Esri Privacy</a> Esri takes our responsibility to protect your privacy seriously. We are committed to respecting your privacy by providing transparency in how we acquire and use your information, giving you control of your information and preferences, and holding ourselves to the highest national and international standards, including CCPA and GDPR compliance.</p></div>

Solution Engineer - Game Engine

Solution Engineer

2+ years with Esri technology; 1+ years in various industries; cloud computing concepts; strong presentation and communication; experience in mobile development and Game Engine; programming in .NET, C++, Kotlin, Swift, Python, JavaScript, or Java; willing to travel up to 25-50%; bachelor's degree in geography, computer science, or related field.

2+ years with Esri technology; 1+ years in various industries; cloud concepts; strong presentation and communication; mobile and Game Engine experience; programming in .NET, C++, Kotlin, Swift, Python, JavaScript, Java; IT context of ArcGIS; willing to travel up to 25-50%; Bachelor's in geography or computer science; visa sponsorship not available.

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