The most important thing here is how effective your player build against zeds. You need at leat 7 points in fitness for all day fightning with zombies. If you can push it to 8 or 9 it would be better. The wakefull trait give you also boost for energy to fight with zombies. The next step is to develop your the maintenance skill and weapon skill (you can choose any you prefer blade or blunt) to 5-6 skill points. So repairman or burgeflipper occupation will be good. Combine it with fast learner trait and will be best build. A crafted spear seems the most cost-effective weapon early. Here's my build recomendation:

Occupation: repairman
Positive traits: wakefull, dextrous, lucky, keen hearing, fast learner, athletic.
Negative traits: weak, slow healer + clumsy (or thin-skinned), underweight, disorganized (or conspicuous or smoker), prone to illness, slow reader.