A software engineer turns a real problem into working, reliable code. On a normal day you read a ticket, ask questions until the need is clear, design a small solution, write it, test it, get a teammate to review it, and ship it. About 85% of people in this job hold a bachelor's degree, but US employers hire self-taught and bootcamp-free learners every day when they can show real projects and solid fundamentals. This roadmap is built on that. You start with one language and the basics of how programs work. You then add Git, databases, testing and web APIs until you can build a complete app. Af
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Stage 1 of 4 · about 12 weeks
Learn one language (Python or JavaScript) well enough to write small programs without copying. Cover variables, conditionals, loops, functions, lists and dictionaries, reading files, and debugging with print statements and a debugger. Learn Git basics (commit, branch, push) and use the command line. Finish with 5 small programs, such as a to-do CLI, a unit converter and a text-file word counter. Check yourself by explaining each program aloud, line by line.
Python core: variables, conditionals and loops
Every program you will ever write is made of storing values, making decisions and repeating work. Real software engineers use these constantly, whether checking if an order is valid or looping over thousands of records. If these are automatic, everything later is easier.
Functions, lists and dictionaries
Real programs are built from small functions working on collections of data. A customer list, a set of settings or a list of tasks is a list or a dictionary. Good function design is the first step toward code other people can read and maintain, which is most of the job.
Files, strings and error handling
Most real data lives in files: logs, CSVs, configs. Reading and cleaning text, and surviving bad input without crashing, is daily work for developers. It also lets your programs remember things between runs.
Debugging
Developers spend a large share of their time finding why code does not do what they expected. A calm, repeatable method beats random changes. This is the skill that makes you independent, so you stop getting stuck for hours.
Command line and Git basics
Every engineering team uses the terminal and version control. Git lets you save snapshots of your work, undo mistakes, and later collaborate through pull requests. Starting the habit now means your GitHub profile shows steady progress when you apply for jobs.
Then 3 more stages (about 142 weeks in all) with lessons, drills, projects, 10 interview questions with strong answers and free resources.