Senior Software Engineer

Stott and May; City Of London; Remote; GBP 60,000 - 80,000; Full time

Job summary

A leading global digital platform is seeking a Senior Software Engineer for their Payments team. The role involves designing and maintaining compliant payment systems, ensuring accurate tax handling across jurisdictions, and collaborating with various teams. Strong experience in financial systems and knowledge of VAT, HST, GST is essential. Skills in Ruby on Rails, JavaScript/TypeScript, and React are preferred. This position offers remote or flexible working options.

Qualifications

• Experience building or maintaining payments systems in fintech or marketplace environments.
• Strong knowledge of VAT, HST, GST, and multi-jurisdictional tax compliance.
• Proficient in designing auditable, reliable payment and refund workflows.

Responsibilities

• Design, build, and maintain tax-aware, compliant payment systems.
• Develop automated solutions for tax calculation, refunds, and reconciliation.
• Ensure regulatory and audit compliance across global payment flows.
• Translate business and compliance requirements into scalable technical solutions.
• Lead complex engineering tasks and support junior developers through mentoring.
• Participate in code reviews and on-call rotations to ensure reliability.

Skills

Payments system development

Tax compliance knowledge (VAT, HST, GST)

Ruby on Rails

JavaScript/TypeScript

React

MySQL

GraphQL

Problem-solving

Communication

Stakeholder collaboration

Job description

Senior Software Engineer – Payments

Location: United Kingdom (Remote/Flexible)
Schedule: Monday–Thursday | Travel: 0–10%

About the Company

A leading global digital platform empowering creators and businesses to launch innovative projects. With billions processed worldwide, the company is dedicated to building transparent, compliant, and scalable financial systems that support a global community.

The Role

We’re seeking a Senior Software Engineer to join the Payments team, responsible for designing and maintaining compliant, efficient, and auditable global payment flows. You’ll ensure accurate tax handling (VAT, HST, GST) and financial reporting across multiple jurisdictions, collaborating closely with Product, Finance, and Legal teams.

Key Responsibilities

• Design, build, and maintain tax-aware, compliant payment systems.

• Develop automated solutions for tax calculation, refunds, and reconciliation.

• Ensure regulatory and audit compliance across global payment flows.

• Translate business and compliance requirements into scalable technical solutions.

• Lead complex engineering tasks and support junior developers through mentoring.

• Participate in code reviews and on-call rotations to ensure reliability.

About You

• Experience building or maintaining payments systems in fintech or marketplace environments.

• Strong knowledge of VAT, HST, GST, and multi-jurisdictional tax compliance.

• Proficient in designing auditable, reliable payment and refund workflows.

• Skilled in Ruby on Rails, JavaScript/TypeScript, React, MySQL, and GraphQL (or willing to learn).

• Excellent problem-solving, communication, and stakeholder collaboration skills.

  If you are interested please email your CV to [e-mail] for immediate consideration.