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Senior Assembly Language Programmer Jobs in Washington, DC

Samprasoft

Assembler Developer

Bethesda, MD · On-site

Assembly Language Developer We are seeking a highly experienced Assembly Language Developer with deep expertise in IBM z/OS mainframe environments, IRS Core Record Layouts (CRL), and legacy system ...

Samprasoft

Assembler Developer

Bethesda, MD · On-site

Assembly Language Developer We are seeking a highly experienced Assembly Language Developer with deep expertise in IBM z/OS mainframe environments, IRS Core Record Layouts (CRL), and legacy system ...

MANTECH

Senior CNO Developer

Hanover, MD · On-site

$124K - $170K/yr

MANTECH seeks an experience and mission focused Senior CNO Developer to join our team in Hanover ... Experience with assembly language programming * Experience with unit testing frameworks and ...

MANTECH

Senior CNO Developer

Hanover, MD · On-site

$124K - $170K/yr

MANTECH seeks an experience and mission focused Senior CNO Developer to join our team in Hanover ... Experience with assembly language programming * Experience with unit testing frameworks and ...

MANTECH

Senior CNO Developer

Hanover, MD · On-site

$124K - $170K/yr

MANTECH seeks an experience and mission focused Senior CNO Developer to join our team in Hanover ... Experience with assembly language programming * Experience with unit testing frameworks and ...

MANTECH

Senior CNO Developer

Hanover, MD · On-site

$124K - $170K/yr

MANTECH seeks an experience and mission focused Senior CNO Developer to join our team in Hanover ... Experience with assembly language programming * Experience with unit testing frameworks and ...

MANTECH

Senior CNO Developer

Hanover, MD · On-site

$124K - $170K/yr

MANTECH seeks an experience and mission focused Senior CNO Developer to join our team in Hanover ... Experience with assembly language programming * Experience with unit testing frameworks and ...

MANTECH

Senior CNO Developer

Hanover, MD · On-site

$124K - $170K/yr

MANTECH seeks an experience and mission focused Senior CNO Developer to join our team in Hanover ... Experience with assembly language programming * Experience with unit testing frameworks and ...

MANTECH

Senior CNO Developer

Hanover, MD · On-site

$124K - $170K/yr

MANTECH seeks an experience and mission focused Senior CNO Developer to join our team in Hanover ... Experience with assembly language programming * Experience with unit testing frameworks and ...

MANTECH

Senior CNO Developer

Hanover, MD · On-site

$124K - $170K/yr

MANTECH seeks an experience and mission focused Senior CNO Developer to join our team in Hanover ... Experience with assembly language programming * Experience with unit testing frameworks and ...

MANTECH

Senior CNO Developer

Hanover, MD · On-site

$124K - $170K/yr

MANTECH seeks an experience and mission focused Senior CNO Developer to join our team in Hanover ... Experience with assembly language programming * Experience with unit testing frameworks and ...

MANTECH

Senior CNO Developer

Hanover, MD · On-site

$124K - $170K/yr

MANTECH seeks an experience and mission focused Senior CNO Developer to join our team in Hanover ... Experience with assembly language programming * Experience with unit testing frameworks and ...

MANTECH

Senior CNO Developer

Hanover, MD · On-site

$124K - $170K/yr

MANTECH seeks an experience and mission focused Senior CNO Developer to join our team in Hanover ... Experience with assembly language programming * Experience with unit testing frameworks and ...

MANTECH

Senior CNO Developer

Hanover, MD · On-site

$124K - $170K/yr

MANTECH seeks an experience and mission focused Senior CNO Developer to join our team in Hanover ... Experience with assembly language programming * Experience with unit testing frameworks and ...

MANTECH

Senior CNO Developer

Hanover, MD · On-site

$124K - $170K/yr

MANTECH seeks an experience and mission focused Senior CNO Developer to join our team in Hanover ... Experience with assembly language programming * Experience with unit testing frameworks and ...

MANTECH

Senior CNO Developer

Hanover, MD · On-site

$124K - $170K/yr

MANTECH seeks an experience and mission focused Senior CNO Developer to join our team in Hanover ... Experience with assembly language programming * Experience with unit testing frameworks and ...

MANTECH

Senior CNO Developer

Hanover, MD · On-site

$124K - $170K/yr

MANTECH seeks an experience and mission focused Senior CNO Developer to join our team in Hanover ... Experience with assembly language programming * Experience with unit testing frameworks and ...

MANTECH

Senior CNO Developer

Hanover, MD · On-site

$124K - $170K/yr

MANTECH seeks an experience and mission focused Senior CNO Developer to join our team in Hanover ... Experience with assembly language programming * Experience with unit testing frameworks and ...

MANTECH

Senior CNO Developer

Hanover, MD · On-site

$124K - $170K/yr

MANTECH seeks an experience and mission focused Senior CNO Developer to join our team in Hanover ... Experience with assembly language programming * Experience with unit testing frameworks and ...

MANTECH

Senior CNO Developer

Hanover, MD · On-site

$124K - $170K/yr

MANTECH seeks an experience and mission focused Senior CNO Developer to join our team in Hanover ... Experience with assembly language programming * Experience with unit testing frameworks and ...

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Senior Assembly Language Programmer information

See Washington, DC salary details

$15

$59

$81

How much do senior assembly language programmer jobs pay per hour?

As of Aug 9, 2026, the average hourly pay for senior assembly language programmer in Washington, DC is $59.21, according to ZipRecruiter salary data. Most workers in this role earn between $49.81 and $70.77 per hour, depending on experience, location, and employer.

What does a senior assembly language programmer do?

A Senior Assembly Language Programmer designs, writes, and maintains low-level software using assembly language, which directly interacts with computer hardware. They optimize critical system components for performance and efficiency, often working on embedded systems, operating systems, or device drivers. Their responsibilities include debugging complex code, improving system stability, and collaborating with hardware engineers to ensure software integrates seamlessly with hardware. With their advanced knowledge, they also mentor junior programmers and contribute to architectural decisions.

What are some common challenges faced by senior assembly language programmers when working on legacy systems?

Senior Assembly Language Programmers often encounter challenges such as deciphering poorly documented or outdated code, ensuring compatibility with modern hardware, and troubleshooting obscure bugs that may not manifest in higher-level languages. Collaborating with cross-functional teams can also be complex, as few colleagues may have deep assembly expertise. To address these issues, programmers typically rely on thorough code reviews, strong analytical skills, and effective communication to bridge knowledge gaps and ensure the stability and performance of critical systems.

What is the difference between Senior Assembly Language Programmer vs Embedded Systems Engineer?

AspectSenior Assembly Language ProgrammerEmbedded Systems Engineer
CredentialsTypically requires a degree in Computer Science or Electrical Engineering, with experience in assembly languageRequires a degree in Electrical Engineering, Computer Engineering, or related fields, often with knowledge of embedded programming
Work EnvironmentPrimarily focused on low-level programming, debugging hardware interfaces, and optimizing assembly codeDesigning, developing, and testing embedded systems, often involving both hardware and software components
Industry UsageUsed in industries like aerospace, defense, and hardware manufacturing where low-level programming is criticalCommon in consumer electronics, automotive, medical devices, and IoT sectors

The main difference is that Senior Assembly Language Programmers specialize in low-level assembly coding for hardware optimization, while Embedded Systems Engineers work on designing and developing complete embedded solutions, often combining hardware and software skills. Both roles require technical expertise but focus on different aspects of embedded technology.

What are the key skills and qualifications needed to thrive as a senior assembly language programmer?

A Senior Assembly Language Programmer needs deep expertise in low-level programming, computer architecture, and debugging, usually supported by a degree in computer science or a related field and several years of relevant experience. Familiarity with specific assembly languages (such as x86 or ARM), integrated development environments (IDEs), debuggers, and version control systems is critical. Exceptional problem-solving skills, attention to detail, and the ability to communicate complex technical concepts clearly are standout soft skills. These competencies ensure the delivery of efficient, reliable, and optimized code essential for performance-critical systems.
What are the most commonly searched types of Assembly Language Programmer jobs in Washington, DC? The most popular types of Assembly Language Programmer jobs in Washington, DC are:
What are popular job titles related to Senior Assembly Language Programmer jobs in Washington, DC? For Senior Assembly Language Programmer jobs in Washington, DC, the most frequently searched job titles are:
What job categories do people searching Senior Assembly Language Programmer jobs in Washington, DC look for? The top searched job categories for Senior Assembly Language Programmer jobs in Washington, DC are:
Senior Assembly Language Programmer jobs near you
Infographic showing various Senior Assembly Language Programmer job openings in Washington, DC as of August 2026, with employment types broken down into 92% Full Time, and 8% Contract. Highlights an 100% In-person job distribution, with an average salary of $123,154 per year, or $59.2 per hour.

Assembler Developer

Samprasoft

Bethesda, MD • On-site

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

Assembly Language Developer

We are seeking a highly experienced Assembly Language Developer with deep expertise in IBM z/OS mainframe environments, IRS Core Record Layouts (CRL), and legacy system modernization. The ideal candidate will support the extraction of business rules from legacy code, assist in code conversion to modern platforms, and work with mission-critical IRS systems such as the Individual Master File (IMF) and Business Master File (BMF).

Key Responsibilities:

  • Analyze, maintain, and enhance legacy code written in IBM z/OS assembly language.
  • Extract business rules from existing assembly code and assist in code conversion efforts.
  • Work with IRS Core Record Layouts (CRL) and QSAM data formats to support data processing and transformation.
  • Collaborate with cross-functional teams to ensure accurate interpretation and migration of legacy logic.
  • Utilize CA Endevor Software Change Manager (SCM) for version control, release management, and secure code handling.
  • Leverage BMC Control-M for job scheduling, workflow automation, and monitoring batch job execution.

Required skills/Level of Experience:

  • Bachelor's degree in Computer Science, Information Systems, or a related field.
  • In-depth knowledge of IBM z/OS assembly language, including:
    • Assembly instructions, addressing modes, and data manipulation techniques
    • Job control processing and JCL
  • Familiarity with IBM mainframe architecture, including:
    • Storage hierarchy (registers, memory, I/O)
    • System calls (SVCs) and interrupt handling
  • Experience with IRS Core Record Layouts (CRL) and QSAM/VSAM data formats (highly desirable).
  • Experience with IRS IMF or BMF systems (highly desirable).
  • Proficiency with CA Endevor SCM for secure and controlled software development lifecycle management.
  • Experience with BMC Control-M for job automation and workflow orchestration.
  • Strong understanding of mainframe development tools, including debuggers, assemblers, linkers, and utilities.
  • Familiarity with DB2 and other legacy data storage formats.

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