Software Engineer

🔒 Confidential Employer
Posted 22 March 2026
LOCATION
London
TYPE
Full-time
LEVEL
Mid-Senior level
CATEGORY
Technology
This employer holds a UK Home Office sponsor license — sponsorship for this specific role is at the employer’s discretion

SKILLS

Go Java C++ C# Python Backend Systems Crypto Trading Problem-solving

FULL DESCRIPTION

Software Engineer

[Employer hidden — view at passion-project.co.uk] is hiring a Software Engineer to develop the backend trading and settlement platform for institutional crypto trading. Responsibilities include designing, developing, and maintaining backend services, optimizing system performance, and collaborating with product and client teams. The role requires 3+ years of software engineering experience in Go, Java, C++, C#, or Python, and a strong interest in financial technology.

Location

London

Employment Type

Full time

Location Type

Hybrid

Department

Engineering

Institutional Fabric for the Digital Asset Market

Founded in 2018, [Employer hidden] provides institutional-grade trading technology for the global digital asset market, powering many of the major players in the crypto ecosystem.

Our mission at [Employer hidden] is clear: to advance the mass adoption of digital assets by seamlessly connecting institutions to the digital asset ecosystem. We are committed to building the most innovative and trusted platform in the world, supporting the entire trading lifecycle.

At [Employer hidden], you'll find an environment that champions kindness and respect, values diverse perspectives, and upholds inclusivity at every turn. We believe that every member of our team adds invaluable insights and abilities that drive [Employer hidden] forward. In our pursuit of excellence, we foster a culture of trust and integrity, collaboration, and mutual growth. Together, we are ambitiously building something extraordinary. Your unique talents and insights will play a crucial role in our shared success.

We are a tight-knit but decentralized team of highly-experienced engineers and businesspeople. We have a hybrid-friendly work environment, with physical hubs in New York, London, Singapore, Sweden and Cyprus.

We’re Hiring: Software Engineer

[Employer hidden] operates at the intersection of crypto and capital markets, building high-performance systems to support the rapidly evolving digital asset space. As a Software Engineer at [Employer hidden], you’ll collaborate with our team to develop the backend trading and settlement platform that powers institutional crypto trading.

You'll have the opportunity to work on key areas such as order routing, market data connectivity, position management, and risk systems. We’re looking for engineers eager to take ownership of their work and contribute to the entire development lifecycle—from design and implementation to testing and deployment.

At [Employer hidden], we value engineers who enjoy solving complex problems, working in a fast-paced environment, and learning from experienced teammates. Prior experience in finance or crypto is a plus but not required—we’re more interested in your ability to write great code, think critically, and work collaboratively.

Want to learn more about [Employer hidden]’s engineering culture? Check out Sonic, our first open-source project which allows [Employer hidden] to achieve microsecond network stack latency in Go: https://github.com/talostrading/sonic

Responsibilities and Duties

  • Design, develop, and maintain backend services that support crypto trading and settlement
  • Optimize system performance, scalability, and security
  • Collaborate with product and client teams to build solutions that support the full trade lifecycle
  • Contribute to a culture of innovation, transparency, and continuous learning

Qualifications

  • 3+ years of software engineering experience in Go, Java, C++, C#, or Python
  • B.S. or M.S. in Computer Science, related field, or equivalent experience
  • Experience working with complex backend systems
  • Strong problem-solving skills and a proactive mindset
  • Interest in financial technology—experience in crypto or traditional markets is a plus
  • Local to London HQ

Benefits

You will also enjoy a comprehensive array of competitive benefits, regardless of your location, within our warm, welcoming, and ambitious company culture. We provide paid lunches in the office, monthly fitness and evening socials to foster connections with colleagues, and other events to engage with the wider team.

Get In Touch!

Sounds compelling? We’d love to hear from you. Contact us directly.

Also, check out other open positions listed on our website.

[Employer hidden] is proud to be an Equal Opportunity employer.  We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender, gender identity, gender expression, transgender status, sexual stereotypes, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.  [Employer hidden] is committed to providing reasonable accommodations for candidates with disabilities in our recruiting process.  If you need any assistance or accommodations due to a disability, please let us know at [contact hidden].

To protect the interests of all parties, [Employer hidden] Trading, LLC and its affiliates (“[Employer hidden]”) strongly discourage submission of unsolicited resumes from any source other than directly from a candidate.

[Employer hidden] will NOT pay fees, commissions or compensation of any kind (“Fees”) for any placement or hire resulting from the receipt of an unsolicited resume. [Employer hidden] will consider any candidate for whom an Agency has submitted an unsolicited resume to have been referred by the Agency free of any charges or fees and [Employer hidden] reserves the right to contact, interview, and hire the candidate directly.

Agencies, search firms, recruitment firms and similar organizations (“Agencies”) must obtain advance written approval from [Employer hidden]’s internal recruiting team to submit resumes, AND must sign a valid fully executed placement agreement with [Employer hidden] in order to be eligible to receive any Fees from [Employer hidden]. [Employer hidden] will not pay a Fee to any Agency that does not have such agreement in place.  By submitting a resume without a signed agreement, you acknowledge and accept these terms.

© [Employer hidden] Trading, [contact hidden]

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