Python Developer

Apex Systems; City Of London; On-site; GBP 70,000 - 90,000; Full time

Job summary

Apex Systems is seeking a skilled backend developer to design and implement Python solutions within the structured Notes domain. This role involves close collaboration with Quants, Sales, and Trading to ensure clean API integration and support for crucial systems. Ideal candidates will have 5+ years in a front office role, strong programming experience, and excellent stakeholder management skills. The company values a proactive attitude and adaptability in high-pressure environments.

Qualifications

• 5+ years in a desk aligned/front office role in global markets.
• Proven engineering background in software development.
• Ability to work in fast-paced front office environments.

Responsibilities

• Design and implement backend Python software solutions.
• Contribute to system design and architecture decisions.
• Provide production support for critical front office systems.

Skills

Strong programming experience with Python or another OO language

Excellent communication and stakeholder management skills

Experience delivering business-critical applications in high-pressure environments

Job description

• Design and implement backend Python software solutions within the structured Notes domain. Collaborate on React UI app, ensuring clean API contracts and integration with backend services.
• Work in close collaboration with Quants/Sales/Trading and other tech team.
• Contribute to system design and architecture decisions for a globally distributed FO platform.
• Play an active role in defining and evolving development best practices in the team.
• Collaborate with sales and structuring to ensure alignment with business requirements.
• Provide production support for critical FO systems, including issue diagnosis and remediation.

Required skills & technologies (“must-haves”)

• Strong programming experience with Python or another OO language, with proven engineering background..
• Working experience in global markets in a desk aligned/front office role.
• Excellent communication and stakeholder management skills.
• Experience delivering business-critical applications in fast-paced, high-pressure environments.

Things that will set candidates apart (“nice-to-haves”)

• Values candidates who can hit the ground running
• Strong emphasis on attitude + ability to work in fast-paced FO environment
• Mid–senior (typically 5+ years), but focus is on quality of engineering experience over years
• Exposure to structured products / pricing
• Ability to engage with UI/React teams (no need to build UI)
• General understanding of financial products (no deep quant knowledge required