PEAK6 is not your typical investment firm. We are a unique, smart and entrepreneurial firm that thinks differently. We see solutions others don’t, and we are driven to capitalize on opportunities others miss.

This ambitious, entrepreneurial culture has helped us become the diverse range of successful businesses we are today.

Senior Software Engineer at PEAK6 Investments

Accelerate your career by joining a dynamic, successful team breaking new ground in technology and trading. As a leader in the financial industry, we need incredibly talented minds to design and develop the next generation of sophisticated, proprietary trading tools and technology.

In this role, you’ll be a part of a skilled, collaborative team designing and developing sophisticated proprietary tools that will directly impact the profitability of our firm.


We’re looking for someone who:

  • Learns quickly. You’re intellectually curious and love solving unique challenges. You ask ‘why’, and push to identify areas where we can constantly improve.
  • Is motivated. You’re driven to be the best. You challenge yourself by setting goals, crushing them, and helping your teammates do the same.
  • Has an insatiable curiosity. You have to know how things work and you love solving problems. You’re resourceful, inquisitive, and proactive in gaining knowledge.
  • Is courageous. You’re willing to challenge the status quo. You trust your instincts and will say what you think, even if it’s controversial.
  • Operates with integrity. You always conduct yourself with honesty and operate ethically. You say what you mean, and mean what you say.

What you’ll do all day:

  • Develop innovative trading tools. Our technology is the lifeblood of our business. You’ll work directly with the end-user from concept to delivery to design and develop sophisticated proprietary tools including, but not limited to, those used for trading, risk management, execution & marketing making, pricing, master data and clearing.
  • Work on large, distributed high-performance systems. You’ll get hands-on experience with sophisticated technology, working with a diverse set of code – developing in Java, C++, Python, Go, Erlang, JavaScript/HTML.
  • See your work in action. Our time-to-market ensures you’ll get to develop tools for regular release, continually push out new products, and see your end-user benefit from your work.
  • Collaborate and share ideas. The floor is always open for great ideas. We love to collaborate, share ideas and get different perspectives. You’ll work with smart people who value creative ideas and strong opinions.
  • Impact our business. At PEAK6 you’ll make an impact Day 1. Each day you’ll have the chance to roll up your sleeves and work on complex technological challenges directly affecting our business. 

And, a few reasons why you might love working here:

  • We’re not a fly by night firm. We’ve got an incredible track record of success and we foster ongoing innovation. So you get all the benefits of a stable company, while enjoying a very entrepreneurial culture.
  • The work environment is amazing. Our office space is really cool, open, and sleek. We provide free beverages, snacks and have fun while working hard.
  • The team is even more amazing. You’ll work with people who are as energetic, smart, and driven as you are. You’ll be managed by the best, too.
  • Your success will be recognized and appreciated. You’ll be able to see your direct impact on our growth. You won’t be just another cog in the wheel.


A few reasons why you might not love working at PEAK6:

  • You’re looking for the newest, flashiest Silicon Valley startup. That’s just not our thing. We’ve got a proven history of great performance with the entrepreneurial culture of a startup. But don’t get us wrong – we definitely focus on results. We just figure out a way to be driven + have fun.
  • You don’t like change. This is not a job for someone who likes ‘predictable’. The market is dynamic which means the work is dynamic. It’s a fast-paced environment and you need to adapt accordingly. You won’t be bored.
  • You’re not the collaborative type. We’re solving pretty heady challenges. We bring ideas to the table and we work together to solve these challenges. If you’re looking to hide out and do your own thing, this might not be the right spot. 


The skills you’ll need to succeed:

  • Strong knowledge of Java or another object oriented language 
  • Experience building multi-threaded systems
  • Experience with relational databases and SQL
  • Knowledge of Unix/Linux based systems
  • Experience with open source tech like Postgres, Redis, MongoDB, hdf5, OpenHFT, Chronicle
  • Knowledge of high throughput messaging systems a plus
  • Experience in trading or related environments strongly preferred

Company Reviews

“PEAK6 gives engineers the opportunity to learn and grow by asking them to tackle hard problems, explore creative solutions, and take ownership of the results.”
Michael Vander Pluym
Software Architect
at PEAK6 Investments
“I love being challenged and PEAK6 gives me the chance to explore creative solutions for sophisticated technology challenges.”
Palak Jain
Engineering Manager
at PEAK6 Investments
“With a great training program and great young minds, we will help you analyze risk/reward and expect you to be creative and bring new things to the table as a trader.”
Josh Abrams
Director of Trading Education
at PEAK6 Investments
Find more startup and tech jobs in Chicago
Apply Now
Why work with us
At PEAK6 we’re looking for wildly passionate, collaborative, and entrepreneurial minds to bring their best ideas to life with us. Every employee at PEAK6 has immense opportunities to collaborate, share their ideas, and shape the path of the different businesses in the firm. Here, your ideas are heard and your input is valued. We provide good flexibility in terms of work-life balance, a great work space, an open and candid atmosphere, and development potential as the company continues to grow. You can really develop your career at PEAK6, while you’re working in a great space, surrounded by friendly people, and learning new things daily. Sound interesting? Check out our careers page!
As part of our entrepreneurial culture, we give every employee at PEAK6 opportunities to collaborate, share their ideas and shape the path of the different businesses in PEAK6. Here, your ideas are heard and your input is valued. We value discipline, intelligence, and tenacity to see an idea through. We take a smart, measured, and data-driven approach to everything we do, so even if we don’t get the results we anticipated, we’re always learning. At PEAK6 we’re looking for wildly passionate, collaborative, and entrepreneurial minds to bring their best ideas to life with us.
Perks & Benefits
At PEAK6 we’ve created a company that not only does great work, it’s also a great place to work. PEAK6 employees enjoy the generous health, vision, and dental insurance plans and matching 401(k) programs you’d expect from a company consistently rated one of “Chicago’s Best and Brightest Employers.” And, then some.
Tuition Reimbursement
Sabbatical Program
Adoption Assistance & Family Leave
Health & Wellness Initiatives which include weekly Yoga and Massage Therapists
Game nights, movie screenings, and poker challenges
Top-shelf firm parties and social events
Seasonal Sports Leagues
Book Club
Educational Training Programs

Oh no!

You're fresh out of job post slots.

Upgrade your planmanage current jobs

Create an account

Let startups find you

Create a profile and upload your resume today.

Saved Jobs
Job Saved
Find your saved jobs by scrolling over this star

Oh no!

You're fresh out of job post slots.