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Second Foundation

Backend Engineer

Prague, Czech Republic
Level
Mid

Not stated in the posting: salary, work type, visa.

Open. First seen 3 October 2026.

About the role

We are a unique combination of a technology company and a trading house. Our mission is to turn data into market-beating trading strategies by using sophisticated mathematical models while helping to balance the power grid.

The core team consists of top-class developers, quant analysts and traders who will use their accumulated know-how to create a state-of-the-art platform. No legacy code, no mundane maintenance and outdated technologies, just pure engineering joy of creating a well-designed piece of software.

We are an independent company. And you will have a real say in what and how it is developed. We hire the most curious and brightest people. We are looking for graduates with strong programming skills, interest in solving complex problems and drive for full-time opportunities.

What would you work on?

  • Delivering your code in a short time to production with direct feedback from internal business.
  • Develop, test, and maintain high-performance, low-latency trading software using Kotlin.
  • Collaborate with traders, quantitative analysts, and other stakeholders to understand business requirements and design appropriate solutions.
  • Implement algorithms for market data processing, order management, risk management, and execution that meet the demands of high-frequency trading.
  • Optimize code for speed and memory usage, and use profiling tools to identify and address performance bottlenecks.
  • Integrate the trading platform with third-party systems, such as exchanges and clearinghouses, using industry-standard protocols and APIs.
  • Monitor the platform's performance and reliability, and quickly diagnose and resolve any issues that arise.
  • Document design decisions, code changes, and technical processes for future reference.

What makes you a great candidate?

  • A degree in Computer Science, Mathematics, Physics, or a related field; last-year students or recent graduates are encouraged to apply.
  • Proficiency in any C-family language (Kotlin, Java, C/C++ and C# strongly preferred).
  • Exposure to real-time SW is a plus.
  • Hands-on experience with multithreading concepts and SW optimization for speed and memory are a plus.
  • Excellent design skills, and knowledge of data structures and algorithms.
  • Well-developed communication skills and a commitment to working collaboratively within a team.

What do we offer?

  • Brand new office in the city center – Masaryčka.
  • Competitive salary package with the possibility of a yearly bonus.
  • 25 days of paid holiday.
  • Flexible working hours and home-office options.
  • High-end workstation.
  • Sponsored lunch in the office. Every workday.
  • Free snacks at the office.
  • Multisport Card – fully paid by the company.
  • Colleagues who are absolute experts in what they do.

What this role asks for

Standard for backend roles

Java

Common in backend postings at any company.

Read against Second Foundation's other open postings on this site.

The team: Software

This role is one of 3 open in Software.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

C (2 of 3), C# (2 of 3), C++ (2 of 3), Java (2 of 3), Kotlin (2 of 3)

OTHER ROLES ON THIS TEAM

From the team and dates on Second Foundation's own job board.

Salary context

31 other open postings titled Backend Engineer state a salary: median USD 150,000 to USD 200,000 a year.

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