Reviving the Classics: 3 Obsolete Programming Languages That Can Boost Your Career Prospects

In the realm of programming, it’s a misconception that languages like Rust or TypeScript dominate the landscape; various sectors of the economy operate on systems and technologies that often go unnoticed. This gap presents a significant opportunity, particularly in languages that are considered outdated but still hold critical functions. If you are intrigued by specialized technologies, read on.

A “legacy language” typically refers to one that has been largely abandoned. However, these languages persist and are often crucial in today’s technology frameworks. Take COBOL, for example; it originated in an era when many believed smoking was harmless yet continues to play a foundational role in global financial transactions. Gaining proficiency in such languages equips you with unique tools that are often overlooked, providing significant advantages in fields where your expertise is urgently needed. Below are three programming languages that can increase your value to potential employers.

Common Business-Oriented Language (COBOL)

~$100k salary for maintaining legacy systems

COBOL, one of the earliest high-level programming languages, dates back to 1960—long before space travel became a reality. It was designed to simplify complex business processes for everyday users, using English-like syntax. Today, it serves a vital role in various business and financial operations, processing an estimated 95% of ATM transactions and 40% of online banking activities. Notably, the U.S. government, including agencies like the IRS, heavily depends on COBOL.

Primarily executed on mainframe computers, COBOL is responsible for handling large-scale data processing across multiple industries. Although much of its code now resides in maintenance mode, its presence is projected to linger for decades.

Statistics indicate that COBOL developers average a salary of around $99,000, with potential earnings reaching up to $167,000 in the financial industry. Therefore, those aspiring to enter finance with a strong grasp of proprietary systems can benefit significantly from COBOL expertise.

Ada: Targeting High-Assurance Applications

~$86k salary, with a resurgence expected in 2025

Ada, named after the pioneering computer scientist Ada Lovelace, emerged in the early 1980s amid a Department of Defense initiative to streamline various programming languages. It is particularly suited for embedded and real-time systems where safety is paramount, such as avionics, air traffic control, and military technologies. Notable applications for Ada include the Boeing 777 and military aircraft like the F-22 Raptor.

With a strong emphasis on code accuracy and a proven track record in safety-critical sectors, Ada has maintained relevance over the years via design-by-contract features. This allows developers to establish robust preconditions, postconditions, and invariants, ensuring that the code performs as expected. These features also include built-in checks that identify memory violations and errors at runtime.

After the Department of Defense ended its Ada mandate in the 1990s, the language lost prominence outside specialized domains. However, its focus on memory safety has garnered renewed interest, propelling Ada into a top-ten ranking in the TIOBE Programming Community Index as of 2025. Obtaining a position using Ada can yield an average salary ranging from $86,000 to $113,000 based on experience.

Perl: The Foundation of Early Web Development

~$106k salary, but facing decline

Perl was introduced in 1987 as a versatile scripting language for Unix, known for its flexibility and prowess in string manipulation and pattern matching. Its influence extends to the widely-used Perl Compatible Regular Expressions (PCRE) library and is foundational in many CGI scripts that handle backend tasks on web servers.

Although Perl is no longer in its prime, it still plays a role in modern programming environments, with nearly 39,192 companies listing it in their job openings. The average salary for Perl developers is approximately $106,000, a respectable figure in today’s market.

Specialized Technologies May Offer Job Stability, But Research Thoroughly

While exploring career pathways, it is essential to conduct thorough research rather than relying solely on opinions. COBOL, while crucial, poses challenges in acquiring the specialized financial knowledge necessary for job placements. Similarly, while specializing in Ada might not directly lead to work on cutting-edge military projects, its applications in high-assurance computing can yield exciting prospects. The programming field is not limited to modern languages like JavaScript; many industries seek applicants with specialized skills. Mastering these less common technologies may provide robust job security that typical developers lack, ultimately making you a more proficient programmer.