Who We Are:
TekIntegral Inc. isn't just another staffing company, we're a hub of innovation, connecting top talent with the client needs.
Recognized for 140% growth in the past three years.
Our Moto - Right Talent. Right Time. Right Place. Right Price.
Please find below the job description.
Position: MS DOS 4.0 Developer
Location: Remote
Type: Contract
Visa: "The client is not willing to sponsor visas at this time." "
Description:
Skills Required: Must have
- A contract requirement for a MS-DOS 4.0 (not PC DOS 4.0) developer
Technical Expertise
- Strong knowledge of MS-DOS 4.0 internals (not PC-DOS): kernel structure, multitasking features, memory management changes introduced in MS-DOS 4.0.
- Proficiency in x86 Assembly (8086/80286).
- Strong C programming skills targeting real-mode DOS environments.
- Experience with DOS interrupts (especially INT 21h, INT 10h, INT 13h, INT 16h, etc.).
- Knowledge of FAT16 file system internals.
- Hands-on experience with TSR programming and interrupt hooking.
Tools & Environment
- Experience using MASM/TASM, Borland/Turbo C, Microsoft C compilers.
- Familiarity with legacy debugging tools (DEBUG, SYMDEB, CodeView).
- Ability to work with old build environments, floppy-disk boot images, and vintage hardware/emulators (e.g., DOSBox, PCem, 86Box).
Soft Skills
- Strong problem-solving skills for reverse-engineering or restoring undocumented legacy code.
- Ability to work independently with minimal documentation.
- Excellent communication skills for documenting complex legacy processes.
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Why Work with us ?
TekIntegral is an equal opportunity employer, dedicated to fostering a workplace where diverse talents and perspectives are valued.
We make all employment decisions based on merit, ensuring a culture of respect, fairness, and opportunity for all, regardless of age, gender, ethnicity, disability, or other protected characteristics.
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