Young learners
A welcoming story and small practical steps make unfamiliar technical work easier to enter.
8-BIT offered to write this page. We checked his draft.
About Code Nexus
Code Nexus teaches AI engineering by giving you a fictional job: a team, a product and problems that need a decision. It was built by educators who wanted learners to practise the decisions behind technology, not just watch someone else make them.
Proudly South African
Built in South Africa, where "robot" means traffic light. 8-BIT is still processing that.
The educators behind it
The team behind Code Nexus includes Cisco Certified Systems Instructors, Microsoft Certified Trainers, and CompTIA Train the Trainer certified educators. Together, they hold numerous industry certifications and bring years of teaching and hands-on technical experience.
Most online tech courses are a video, a quiz and a certificate of attendance. Years in classrooms taught us that nodding along is not the same as knowing, so every skill here is explained, used in a realistic situation, then backed with evidence.
Code Nexus is proudly South African. It is built here for learners with different starting points and schedules, and for technical skills they can carry into a global industry.
Why "Nexus"? It's where things connect: code, cloud, AI, and the people arguing about all three.
An approved CPD provider
Code Nexus is an Approved Provider with The CPD Group, provider #791172, for continuing professional development.
You don't have to take our word for it, and certainly not 8-BIT's. Verify it on The CPD Register.
Designed around real lives
Different schedules and starting points. The same 24 hours in a day.
Working professionals
Workplace decisions and realistic constraints connect learning to the problems teams solve.
Part-time learners
Self-paced episodes let learners make progress around work, family, and other commitments.
Retirees and career returners
Clear context and practical examples support people exploring technology at a new stage of life.
We shaped Code Nexus in conjunction with these different learner groups. Their perspectives helped us build a holistic approach that combines practical work, a continuing story, and certification-aligned skills.
A practical learning loop
Every episode ends with something you can explain, not just something you clicked through.
- 01
Story brief
Meet the people, product, and decision in front of you.
- 02
Learn in context
Get the technical ideas you need for the situation.
- 03
Do the work
Make a choice, inspect evidence, or build a practical change.
- 04
Show your reasoning
Leave verified evidence and prepare for the next milestone.
Meet the (fictional) team
Seven colleagues and one AI assistant, all fictional. Do pay attention to the AI behind the curtain: checking 8-BIT's answers is part of the course.
Maya Chen
Senior AI Engineer · Your mentor
Calm, precise and quietly dry. Starts you on checklists, then takes them away. "It runs. Now show me what happens when the input is wrong."
Kabelo Mokoena
Platform and DevOps Engineer
Linux, containers, pipelines and incident recovery. Writes his best runbooks right after something breaks. "It worked on my machine. I've updated the runbook to say why that wasn't enough."
Amara Okafor
ML and Data Engineer
Data quality, evaluation and responsible AI. Sceptical of any result that looks too good. "The accuracy improved. Which group did we leave out?"
Priya Naidoo
Cloud Architect
Azure, AWS, architecture and resilience. Warm, and suspicious of unexplained spend. "Azure will provision it. Finance will ask whether we needed it."
Lydia Roe
Security Engineer
Identity, least privilege, secrets and incident control. Deadpan about boundaries. "Nobody will guess the URL is not an access control."
Leo Martins
Product Manager
Requirements, priorities and stakeholders. Arrived asking "can we add AI?" and now brings constraints. "I brought a reason and a success measure this time."
Jax Rivera
Creator Partnerships Lead
The voice of Code Nexus's creators: user impact, accessibility and unusual tickets. "Nobody uses it that way? I have twelve screenshots."
8-BIT
Code Nexus Internal AI Assistant
A fictional internal AI assistant. Helpful, fast, and occasionally too sure of himself, which is why his work always comes with something you can verify.
Practice that builds toward a goal
The story carries the work; certification checkpoints give learners clear milestones.
S1 · Welcome to Code Nexus8
S2 · The Python Team9
S3 · Welcome to Engineering8
S4 · One Company, Two Clouds8
S5 · The AI Proposal9
S6 · Build Code Nexus Assist8
S7 · It Worked on My Laptop8
S8 · You Own the Release8
S9 · Autonomous Systems & Agent Engineering6
Counts are read from the currently authored curriculum. Each season links practical work to a growing set of skills.
- Season 1: Welcome to Code Nexus
- Core skills and practical work
- Season 2: The Python Team
- PCEP · Certified Entry-Level Python Programmer
- PCAP · Certified Associate in Python Programming
- Season 3: Welcome to Engineering
- Linux Essentials · Linux Essentials
- GitHub Foundations · GitHub Foundations
- Season 4: One Company, Two Clouds
- Azure Fundamentals · Microsoft Azure Fundamentals
- AWS Cloud Practitioner · AWS Certified Cloud Practitioner
- Season 5: The AI Proposal
- Azure AI Fundamentals · Microsoft Azure AI Fundamentals
- AWS AI Practitioner · AWS Certified AI Practitioner
- Season 6: Build Code Nexus Assist
- Azure AI Apps and Agents Developer · Developing AI Apps and Agents on Azure
- Season 7: It Worked on My Laptop
- Kubernetes (KCNA) · Kubernetes and Cloud Native Associate
- Season 8: You Own the Release
- Azure DevOps Expert · Designing and Implementing Microsoft DevOps Solutions
- Season 9: Autonomous Systems & Agent Engineering
- Core skills and practical work
Code Nexus prepares learners for external exams; each certification is issued by its provider.
See where all of this is going.
The most practical*, least boring* way to learn AI engineering.
*According to 8-BIT, who is not an impartial source. Please verify.