{{Short description|Assessment software}} {{Infobox company | name = CodeSignal | logo = CodeSignal Logo.png | type = Private | industry = Software, Technology, Education | founded = 2015 | founders = Tigran Sloyan, Aram Shatakhtsyan, Felix Desroches | hq_location_city = San Francisco, California, U.S. | area_served = Worldwide | products = CodeSignal Hire, CodeSignal Learn | website = {{URL|https://codesignal.com}} }}

'''CodeSignal''' is a technology company that provides a skills assessment and development platform for organizations and individuals. Founded in 2015 and headquartered in San Francisco, California, the company was launched under the name CodeFights, and was renamed in 2018.

==History== CodeSignal was founded in 2015 by Tigran Sloyan, Aram Shatakhtsyan, and Felix Desroches.<ref>{{Cite news|url=https://www.wsj.com/articles/new-site-helps-outsiders-land-tech-jobs-1479232236|title=New Site Helps Outsiders Land Tech Jobs|last=Simons|first=John|date=2016-11-16|work=The Wall Street Journal|access-date=2024-10-26}}</ref> Initially launched as CodeFights, it began as a platform for [[competitive programming]] challenges, allowing users to compete in head-to-head timed coding battles.<ref>{{Cite news|url=https://www.businessinsider.com/codefights-thinks-competitive-programming-can-be-a-spectator-sport-2015-9|title=This startup thinks competitive programming could be more popular than college football|last=Rosoff|first=Matt|date=2015-09-02|work=Business Insider|access-date=2024-10-26}}</ref>

In 2017, CodeFights introduced an interview practice mode, helping users prepare for technical interviews with practice questions and assessments.<ref>{{Cite web|url=https://techcrunch.com/2017/06/22/codefights-new-practice-mode-helps-developers-prepare-for-job-interviews/|title=CodeFights launches a new practice mode to help developers prepare for job interviews|last=Lunden|first=Ingrid|date=2017-06-22|website=TechCrunch|access-date=2024-10-26}}</ref> In 2018, the company rebranded to '''CodeSignal''' to reflect its shift towards providing assessment tools for technical recruiting and introduced the Coding Score, a standardized measure for developers to showcase their coding abilities to potential employers.<ref>{{Cite web|url=https://venturebeat.com/2018/05/30/codefights-rebrands-as-codesignal-launches-interview-practice-mode/|title=CodeFights rebrands as CodeSignal, launches Interview Practice Mode|last=O'Brien|first=Chris|date=2018-05-30|website=VentureBeat|access-date=2024-10-26}}</ref>

In October 2020, CodeSignal announced that it had raised $25 million in a Series B funding round led by Menlo Ventures, with participation from existing investors including Capital One Ventures and CM Ventures.<ref>{{Cite web|url=https://codesignal.com/blog/codesignal-updates/codesignal-announces-25m-series-b-funding/|title=CodeSignal Announces $25M Series B Funding|last=Sloyan|first=Tigran|date=2020-10-07|website=CodeSignal Blog|access-date=2024-10-26}}</ref> The funding was aimed at expanding the company's technical assessment platform and scaling its team.

In September 2021, CodeSignal secured $50 million in a Series C funding round led by [[Index Ventures]], with additional participation from Menlo Ventures and Headline. The company stated that the funds would be used to further develop its technical assessment solutions and invest in research and development.<ref>{{Cite web|url=https://techcrunch.com/2021/09/16/codesignal-secures-50m-for-its-tech-hiring-platform/|title=CodeSignal secures $50M for its tech hiring platform|last=Lunden|first=Ingrid|date=2021-09-16|website=TechCrunch|access-date=2024-10-26}}</ref>

==Products and Services== CodeSignal offers a suite of assessment and educational tools designed to evaluate and improve skills.

The company's assessment platform provides advanced task-based simulations, standardized coding tests, and a real-world coding environment. These assessments are used by companies as part of their hiring processes.<ref>{{Cite web|url=https://codesignal.com/products/|title=Products|website=CodeSignal|access-date=2024-10-26}}</ref>{{primary inline|date=August 2025}}

In 2024, CodeSignal launched CodeSignal Learn. The platform includes an AI learning assistant called "Cosmo", which is derived from existing [[LLM]]s, such as [[ChatGPT]].<ref>{{Cite web|url=https://techcrunch.com/2024/02/08/codesignal-launches-a-learning-platform-with-an-ai-powered-guide/|title=CodeSignal launches a learning platform with an AI-powered guide|last=Korosec|first=Kristin|date=2024-02-08|website=TechCrunch|access-date=2024-10-26}}</ref><ref>{{Cite web|url=https://www.fastcompany.com/91025658/codesignals-new-ai-platform-wants-to-be-the-duolingo-of-tech-education|title=CodeSignal's new AI platform wants to be the Duolingo of tech education|last=Smith|first=Jane|date=2024-03-15|website=Fast Company|access-date=2024-10-26}}</ref>

In October 2024, CodeSignal released the ''AI Benchmarking Report'' which compared the coding skills of several AI models with those of human software engineers.<ref>{{Cite web|url=https://codesignal.com/blog/ai-vs-human-engineers-benchmarking-coding-skills/|title=AI vs. human engineers: Benchmarking coding skills head-to-head|last=Team CodeSignal|date=2024-10-01|website=CodeSignal Blog|access-date=2024-10-26}}</ref> According to CodeSignal, while AI models demonstrated impressive capabilities in solving coding tasks, top-performing human candidates still outperformed them in both average score and solve rate.<ref>{{Cite web|url=https://techcrunch.com/2024/10/02/codesignal-ai-benchmark-report/|title=CodeSignal's AI Benchmark Report shows humans still outperform AI in coding tests|last=Smith|first=John|date=2024-10-02|website=TechCrunch|access-date=2024-10-26}}</ref>

CodeSignal also publishes an annual University Ranking Report, which ranks universities based on the performance of their students in CodeSignal's General Coding Assessment.<ref>{{cite web |last1=Kolakowski |first1=Nick |title=CodeSignal's Rankings Show Which Degrees Equal Skills |url=https://www.dice.com/career-advice/codesignals-rankings-show-which-degrees-equal-skills |website=Dice |date=16 May 2025 }}</ref>

==See also== * [[Skill]] * [[Coding interview]] * [[Computer Programming]]

==References== {{Reflist}}

==External links== * {{Official website|https://codesignal.com}}

[[Category:2015 establishments in California]] [[Category:American companies established in 2015]] [[Category:Companies based in San Francisco]] [[Category:Educational software companies]] [[Category:Education companies established in 2015]] [[Category:Educational technology companies of the United States]]