Staff Software Engineer

It’s no wonder we can go further, faster together.

We’re a team of 450+ professionals from 50+ nationalities, all commercially driven, entrepreneurial and ready to turn potential into progress. Not just for us, but for the world too.

At STX, we’re focused on so much more than making money. We’re here to make a profit with a purpose. Because for us, nothing’s more important than being able to trade in environmental commodities and create the most effective decarbonization strategies for our clients. Join us and together we can change the world – one trade at a time.

Your success story starts here…

KEY RESPONSIBILITIES

• Architect and design core systems: You are hands-on during implementation, helping service teams bootstrap maintainable, scalable systems and guiding them through technical decisions and trade-offs.
• Drive resilient, scalable design: You make the hard trade-offs and present them as clear choices, ensuring systems are both robust and future-proof.
• Turn ambiguity into clarity: Work across teams and functions to align on shared goals, translating unclear ideas into solid technical concepts.
• Full-stack experience with breadth: You work comfortably across the stack—including infrastructure as code, and have a general understanding of data engineering concepts.
• Collaborate across the business: Partner with Trading, Legal, Risk, and Ops to deliver thoughtful, well-architected solutions to real-world challenges.
• Elevate and innovate: Mentor others, set architectural standards, and embrace emerging technologies (including LLMs) to improve workflows and push the boundaries of individual impact.

KEY REQUIREMENTS

• 10+ years in software development within product-led companies, ideally in fintech or B2B SaaS at scale.
• Strong in TypeScript for modern frontend development, with solid backend experience in Python and Node.js.
• Deep hands-on experience with AWS, serverless architectures, and Infrastructure-as-Code (CDK/Terraform)
  
• Experience with event-driven systems (Kinesis/Kafka) and container orchestration (Kubernetes)
  
• Proven track record in architectural leadership, defining standards, and mentoring teams
  
• Strong systems thinking, excellent communication, and ability to operate effectively in ambiguity

GET IN TOUCH

Are you ready to embark on a journey with us? Please submit your application for this job by clicking on the “apply” button. For further questions, please contact the Recruitment department at recruitment@stxgroup.com.

STX Group offers equal employment opportunity. Acquisition based on this vacancy is not appreciated.

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