Senior Backend Engineer, Fintech Payments Platform

Insight Global; Santiago; On-site; CLP 60,000,000 - 90,000,000; Full time

Job summary

Insight Global’s client—a leading global fintech—seeks a Senior Backend Software Engineer to design, build, and enhance the next generation of its payments platform. You will work across architecture, development, and deployment, building scalable services for payments, onboarding, settlement, and FX.

You will mentor mid-level engineers, collaborate with product and compliance teams, and drive modernization of cloud infrastructure and platform services with a focus on reliability and production

Qualifications

• 6+ years of backend software engineering experience.
• Strong experience with C#/.NET or another OOP language and willingness to work in a .NET environment.
• Experience building and supporting production-scale backend systems.
• Payments, fintech, FX, or money movement experience.
• Microservices, event-driven architecture, and system design experience.
• Cloud experience required; AWS preferred.
• Daily use of AI development tools such as Copilot, Cursor, Claude Code, or similar.
• Product-focused mindset with strong communication skills.
• Ability to thrive in a fast-paced, ambiguous environment.
• Experience with AWS services such as SQS, Lambda, ECS, DynamoDB, and S3.
• Experience with distributed systems and high-volume transaction processing.
• Experience leading technical design discussions and mentoring engineers.
• Experience with CI/CD pipelines and modern deployment practices.

Responsibilities

• Design, develop, and maintain scalable backend services supporting financial transactions and payment platform functionality.
• Build and enhance systems related to onboarding, payments, settlement, foreign exchange, and business-critical financial operations.
• Collaborate with product, compliance, and operational teams to deliver new capabilities from concept through deployment.
• Develop and maintain integrations with external partners and third-party platforms.
• Drive service reliability, monitoring, observability, incident response, and production readiness within assigned domains.
• Participate in architecture discussions, technical planning, and design reviews.
• Provide mentorship and technical guidance to mid-level engineers.
• Contribute to modernization initiatives involving cloud infrastructure, service-oriented architecture, and platform transformation efforts.
• Leverage AI-assisted development tools throughout the software development lifecycle to improve productivity and code quality.

Skills

C#/.NET

Backend engineering

Microservices

AWS

CI/CD

Distributed systems

Payments/Fintech

AI development tools

Mentoring engineers

Tools

AWS services

Job description

Insight Global’s client—a leading global fintech—seeks a Senior Backend Software Engineer to design, build, and enhance the next generation of its payments platform. You will work across architecture, development, and deployment, building scalable services for payments, onboarding, settlement, and FX.

You will mentor mid-level engineers, collaborate with product and compliance teams, and drive modernization of cloud infrastructure and platform services with a focus on reliability and production