Senior Software Engineer, Payments & Incentives

Salary: £73,000 - 90,000 per year

Requirements:

• At least 2 years of experience building and maintaining complex distributed systems, particularly microservices and related technologies; experience across the full stack is a plus.
• Degree in Computer Science or a related field, or equivalent nontraditional training.
• Proficiency in Go and Python or a similar modern programming language, or the ability to learn one quickly.
• Experience designing and implementing APIs and microservices in a high-velocity production environment.
• Strong understanding of observability and the software development life cycle in an Agile environment.
• Ability to communicate complex technical updates clearly to technical and non-technical stakeholders.
• Ability to work across team boundaries and with third parties to resolve dependencies and advance projects.
• Familiarity with cloud technologies such as AWS, messaging systems such as Kafka or SQS, or data warehouse tools such as Snowflake is a plus.
• Focus on business outcomes and customer adoption.
• Ability to work autonomously, turning high-level priorities into actionable technical roadmaps.
• Interest in understanding customer use cases and translating them into technical solutions.
• Commitment to mentoring colleagues and maintaining high standards for code quality and operational reliability.

Responsibilities:

• Drive engineering initiatives for unified financial reporting and process consolidation, ensuring systems are reliable, monitored, and adopted.
• Lead the design and implementation of robust microservices and APIs for payments, incentives, and billing.
• Engage with internal customers, product owners, and business stakeholders to understand requirements and resolve cross-team dependencies.
• Support the professional development of peers and junior team members through constructive feedback on code, system design, and engineering processes.
• Resolve complex on-call incidents and implement measures to improve long-term system health and financial integrity.

Technologies:

• AI
• AWS
• Cloud
• Data Warehouse
• Support
• Kafka
• Python
• Snowflake
• microservices
• Excel

More:

We are Quantcast, an advertising technology company founded in 2006. Our AI-powered Demand Side Platform connects marketers with audiences across the open internet. We are hiring a Senior Software Engineer for our Payments & Incentives team in London, which builds payment solutions, incentive programs, and billing systems. The role focuses on financial systems and pipelines for our advertising platform, including unified billing workflows and invoice visibility. We offer a competitive salary, performance bonus, equity, and comprehensive benefits. We are headquartered in San Francisco, with offices around the world, and are an Equal Opportunity Employer.

last updated 40 week of 2026