Code Reviewer

Cape Town, Western Cape, South Africa · Mentorship · CoGrammar Mentor


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CoGrammar is recognised as one of the top edtech startups in Europe, Middle East, and Africa. We are dedicated to closing the global tech skills gap and we achieve this by integrating human mentorship and expert code review into the world's leading tech education brands. CoGrammar has also built and scaled its own coding education product - HyperionDev - which supports learners from over 40 countries in changing into fulfilling tech careers. HyperionDev rebranded to CoGrammar in 2018.

In 2016 we won first prize in Facebook's Innovation Challenge, gaining financial backing from both Facebook and Google. We were originally launched from the University of Cambridge by Computer Science graduates and our senior leadership comprises of world-leading talent out of places such as Google, Amazon and Groupon.


We at CoGrammar run the most selective program in the world for identifying, training and employing high-potential individuals for the unique career path of being a full-time code review expert.

Our code review experts, called CoGrammars, are essentially software development experts with a niche skill-set that is at the intersection of technical coding skills and mentorship abilities.

CoGrammars work with leading coding education providers to provide expert code review and mentorship to students learning how to code. This includes feedback on code quality, structure, efficiency, and conformity to conventions - a much deeper level of review than simply marking the submitted code as 'right' or 'wrong'. CoGrammars also provide specialist feedback to tech teams and junior developers to help them write quality code and fast-track their success.

CoGrammars progress along a structured growth pathway to become specialist code reviewers or coding educators. They receive continuous professional development and coaching to help them specialise in particular software development tracks over time. They also receive opportunities to work with elite partners from around the world on the newest technology stacks, ensuring that they can learn from and work alongside the best in global tech.

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As a CoGrammar, you not only fill out one of the most key roles in our organisation, you define what we are.

In this role, you will be leading the delivery of online code review and coding education (with HyperionDev or any of our global partners) impacting thousands of students from around the world. You will support our learners by helping solve their queries, guiding them on their course content and coding projects, and giving quality feedback on students’ code on a daily basis. You will be part of a team building the most affordable online code-learning experience to remove existing barriers to accessing coding education, and teaching these skills to people from diverse nations, cultures and backgrounds.

As a CoGrammar, a typical day would include some or all of the following:



  • Studying towards or holding a degree or diploma in Computer Science, Information Systems, Information Technology, Software Engineering, or a related field (Skills acquired through informal learning may also be accepted)
  • 1+ years of programming experience / teaching experience in a core programming language such as Java, Python, C#, or C++
  • Excellent written and verbal communication skills
  • Fast learner, meticulous attention to detail.
  • A problem-solving and positive attitude
  • Ability to craft and maintain student CRM systems, spreadsheets, and collate student data
  • Start-up mentality and the desire to see CoGrammar succeed
  • An interest in the future of education and online learning
  • Strong leadership and teamwork skills
  • Preferable
  • 1+ years of teaching or tutoring experience
  • Experience designing and developing interactive learning experiences
  • Experience working with online students or delivering remote support
  • Active involvement in local and international tech communities
  • Professional experience in Android, Data Science, or Web Development
  • Knowledge of Ruby, DevOps, MERN / MEAN stack.
  • Benefits

  • Equity: You'll gain not just a generous commission and base salary, but direct ownership in the business.
  • Join the heart of tech in Africa and Europe: You'll work with the best of the best and rub shoulders with the world leaders in edtech
  • Team off sites: We've been to San Francisco, London and New York :)
  • The sharpest, motivated co-working: Work with only the best who are at CoGrammar to redefine technical education
  • Weekly game night: Discworld, chess, or poker - you choose
  • Life-changing work: Solve real problems that make education accessible to those who need it most: you're allowed to brag about it.

    CoGrammar is recognised as one of the top education technology startups in Europe, Middle East, and Africa. Founded by ex- Googlers and graduates of the University of Cambridge, CoGrammar was funded by Facebook and Google in 2017 - winning first prize in Facebook's Africa Innovation Challenge Award. CoGrammar works directly with Facebook's senior leadership - right up to Mark Zuckerberg himself - and through its headquarters in London is recognised as a leading edtech startup in the UK.

    CoGrammar was founded with an ambition to scale human-led education in programming. We believe that machines can't match humans, and learning to code is best achieved by having a coding educator review your code on a day-by-day basis.

    CoGrammar has built an online course platform that allows human code review to be scaled, applying this methodology to help thousands of students from over 40 countries learn how to code in a novel way.

    We're proud to power this model using the top technical talent from Africa, and to work with the world's leading tech firms to deliver the highest quality educational content in software development.


    We're a people-first company with a purpose that underlines everything we do. We're obsessed with the potential in people and challenge them to do their best work. We embrace a culture of growth and learning to deliver on our vision and ours is a relentless quest for improvement.


    At CoGrammar we believe in the following:

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