All of these are monthly salaries:
A good jr developer salary: R$4500 +- R$1500 (today, ~US$1200 +- US$400)
A good middle-level developer salary: R$7500 +- R$1500 (today, ~US$1900 +- US$400)
A good senior developer salary: R$12000 +- R$2500 (today, ~US$3200 +- US$700)
A good tech leader developer salary: R$18000 +- R$3500 (today, ~US$4800 +- US$900)
The highest salary for pure software development that I heard is R$30000 (today, ~U$12000). More than that only for CTO-like roles at big companies.
In terms of ease to get a job, it is ridiculously easy. A struggling startup fired 10 developers and let the market know that they were open to offers. In one week all of them were already working at another company. All of them and already working (not just receiving an offer). We get LinkedIn messages from recruiters all the time. The more senior ones get around 3 to 5 messages a day from recruiters. A little bit harder for juniors, but still easy enough compared to other professions.
The quality of work varies a lot. I like a lot my current work and company, but this one is hard to generalize.