Quantopian is looking for senior software engineers to help us democratize the world of quant finance. Quantopian empowers technical, talented people everywhere to research, develop, and test investment algorithms. We're growing our engineering team to support our rapidly expanding user base and our ambitious product roadmap.
We are big proponents of open source (https://www.quantopian.com/opensource), and we have built several open-source projects that are popular in the quant finance world.
You can reach me directly at jean@<companyname>.com, I'd be happy to tell you more.