Senior C Developer Jobs
Senior C Developer jobs are open across defense, embedded systems, fintech, and operating systems, from mid-level to staff and principal, with specializations in systems programming, real-time applications, and performance optimization. Find a role that fits from the openings below and apply directly.
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Description
Hybrid Tues/Wed/Thurs Onsite in Rockaway Township, NJ
The organization seeks a senior backend engineer to support and enhance business-critical production applications within a C#/.NET environment. The role will design and maintain secure, scalable APIs and services, integrate with SQL Server, and work with complex business logic and workflows. Candidates must demonstrate deep .NET Core expertise, secure coding practices with OAuth, and ownership of CI/CD in a Microsoft-centric stack. This position focuses on backend delivery with unit testing and collaboration with a separate QA team. This is a contract to hire opportunity. Applicants must be willing and able to work on a w2 basis and convert to FTE following contract duration. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance. Rate: $70.00 to $80.00/hr. w2
Responsibilities
- Support and enhance business‑critical production applications.
- Perform new development, enhancements, and maintenance within a C#/.NET environment.
- Work extensively with complex business logic and process‑driven workflows.
- Design, build, and maintain secure, scalable backend services and APIs.
- Write clean, maintainable, well‑tested code aligned with best practices.
- Perform unit testing and collaborate with a separate QA team for full application testing.
- Participate in code reviews, technical discussions, and solution design.
- Contribute to effort estimation, progress tracking, and demos.
- Quickly learn internal frameworks, standards, and development processes.
Experience Requirements
- 7+ years of professional software development experience.
- Strong expertise in C# and .NET with deep hands‑on experience in .NET Core.
- Experience with older .NET frameworks for legacy systems.
- Proficiency in asynchronous programming.
- Experience developing RESTful APIs.
- Experience with SignalR.
- Strong experience integrating APIs with Microsoft SQL Server.
- Experience securing APIs and services using OAuth and secure coding practices.
- Comfort with a Microsoft‑centric technology stack.
- Experience with CI/CD pipelines and DevOps workflows, managing pipelines directly.
- Familiarity using AI‑assisted development tools (preferred).
Education Requirements
Description
Hybrid Tues/Wed/Thurs Onsite in Rockaway Township, NJ
The organization seeks a senior backend engineer to support and enhance business-critical production applications within a C#/.NET environment. The role will design and maintain secure, scalable APIs and services, integrate with SQL Server, and work with complex business logic and workflows. Candidates must demonstrate deep .NET Core expertise, secure coding practices with OAuth, and ownership of CI/CD in a Microsoft-centric stack. This position focuses on backend delivery with unit testing and collaboration with a separate QA team. This is a contract to hire opportunity. Applicants must be willing and able to work on a w2 basis and convert to FTE following contract duration. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance. Rate: $70.00 to $80.00/hr. w2
Responsibilities
- Support and enhance business‑critical production applications.
- Perform new development, enhancements, and maintenance within a C#/.NET environment.
- Work extensively with complex business logic and process‑driven workflows.
- Design, build, and maintain secure, scalable backend services and APIs.
- Write clean, maintainable, well‑tested code aligned with best practices.
- Perform unit testing and collaborate with a separate QA team for full application testing.
- Participate in code reviews, technical discussions, and solution design.
- Contribute to effort estimation, progress tracking, and demos.
- Quickly learn internal frameworks, standards, and development processes.
Experience Requirements
- 7+ years of professional software development experience.
- Strong expertise in C# and .NET with deep hands‑on experience in .NET Core.
- Experience with older .NET frameworks for legacy systems.
- Proficiency in asynchronous programming.
- Experience developing RESTful APIs.
- Experience with SignalR.
- Strong experience integrating APIs with Microsoft SQL Server.
- Experience securing APIs and services using OAuth and secure coding practices.
- Comfort with a Microsoft‑centric technology stack.
- Experience with CI/CD pipelines and DevOps workflows, managing pipelines directly.
- Familiarity using AI‑assisted development tools (preferred).
Education Requirements
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Find Senior C Developer JobsSenior C Developer Job Market
A snapshot from current openings nationwide, updated as new roles post.
Who's Hiring
- Environmental Systems Research Institute2
- InfoVision2
- Intercontinental Exchange2
- Artech1
- Eliassen1
Top Industries Hiring
- Technology & Software6
- Consulting & Professional Services3
- Investment & Asset Management2
- Staffing & Recruiting1
What Employers Look For
The qualifications that appear most often in senior C developer jobs.
- Five or more years of professional experience writing production C code
- Deep knowledge of memory management, pointers, and undefined behavior
- Experience with POSIX, Linux kernel internals, or embedded RTOS environments
- Proficiency with debugging tools such as GDB, Valgrind, or AddressSanitizer
- Familiarity with concurrent programming, mutexes, and low-level synchronization primitives
- Bachelor's degree in computer science, computer engineering, or a related technical field
Tips for Your Senior C Developer Job Search
Tailor your resume for low-level work
Highlight projects where you wrote performance-critical or memory-managed code. Recruiters screening senior c developer resumes look for concrete outcomes: latency reductions, footprint sizes, or throughput numbers tied to specific systems you built or optimized.
Showcase your debugging and toolchain fluency
List the specific debuggers, profilers, and build systems you use daily, such as GDB, Valgrind, Make, or CMake. Senior c developer roles expect hands-on command of these tools, not just familiarity, so name the version or environment when it adds context.
Apply early to roles that fit
Migrate Mate lists senior c developer openings from across the United States in one place, so you can find roles that match and apply directly to each listing.
Filter openings by domain, not just title
Search for senior c developer roles by industry keyword, such as RTOS, firmware, or kernel, because the day-to-day work differs sharply across domains. Matching your background to the right domain cuts down on mismatched interviews and improves your offer rate.
Prepare a live coding answer for pointer and memory questions
Most senior c developer technical screens include questions on pointer arithmetic, buffer management, or undefined behavior. Practice writing correct, explainable solutions out loud, because interviewers want to hear your reasoning as much as your syntax.
Negotiate scope, not just base compensation
When you reach the offer stage, ask about ownership of the codebase, access to hardware or test environments, and on-call expectations. These factors affect your daily work as a senior c developer more than title alone and are often negotiable before you sign.
Senior C Developer Jobs: Frequently Asked Questions
Which companies are hiring the most senior c developers?
The companies hiring the most senior c developers right now include Environmental Systems Research Institute, InfoVision, and Intercontinental Exchange, with the largest share of openings in Texas, California, and Georgia, based on current listings on Migrate Mate as of June 2026. Defense contractors, semiconductor firms, and embedded software companies consistently account for a large portion of active postings.
How many senior c developer jobs are remote?
About 38% of senior c developer openings are fully remote or hybrid as of June 2026, which is lower than most software engineering roles because many positions require access to proprietary hardware or classified environments. Systems programming work tied to cloud infrastructure or developer tooling tends to have the highest remote availability within this specialty.
How do you become a senior c developer?
You become a senior c developer by building years of experience writing and maintaining production C code in a domain where correctness and performance are non-negotiable. Start by mastering memory management, pointer semantics, and the C standard. Then deepen expertise in a specific environment, such as embedded firmware, OS kernels, or real-time systems. Contributing to open-source C projects and owning incident post-mortems accelerates the transition to senior responsibility.
Can you get hired as a senior c developer without direct industry experience?
Getting hired as a senior c developer without direct industry experience is difficult but possible if your adjacent work demonstrates the same low-level skills. Strong contributions to open-source C projects, graduate research involving systems code, or a portfolio of firmware or kernel patches can substitute for commercial history. Target smaller companies or startups where hiring managers weigh demonstrated ability over pedigree, and be explicit about the environments your code has run in.
What does the senior c developer interview process look like?
The senior c developer interview process typically begins with a recruiter screen focused on your domain background and systems experience. A technical phone screen follows, often covering pointer arithmetic, memory layout, or concurrency bugs. The on-site or virtual loop includes a live coding session in C, a systems design discussion, and a behavioral round. Some employers add a take-home assignment involving real-world debugging or optimization of an existing codebase.
Where can I find and apply to senior c developer jobs?
You can find and apply to senior c developer jobs on Migrate Mate, which lists current openings from across the United States. Search the available roles, find the ones that match your background and target domain, and apply directly to each listing that fits.
See All Senior C Developer Jobs
Jump back to the full list of openings and apply to any senior C developer role that fits.
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