Senior Backend Engineer – Payments Platform & FX

Districtxi; Santiago; On-site; CLP 70,000,000 - 110,000,000; Full time

Job summary

Insight Global is sourcing a Senior Backend Software Engineer for a leading fintech client to design, build, and evolve scalable payment platform services. You will work across onboarding, payments, settlement, FX, and core financial operations, collaborating with product, compliance, and operations to deliver production-ready capabilities.

You will mentor mid-level engineers, modernize infrastructure, and leverage cloud and AI-enabled tools to improve productivity and code quality in a

Qualifications

• 6+ years of backend software engineering experience.
• Strong experience with C#/.NET or another OOP language (Java, Go, etc.) 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

Backend engineering

C#/.NET

Payments fintech

Microservices design

Cloud AWS

AI tooling

Communication

Mentoring

CI/CD

Distributed systems

Tools

SQS

Lambda

ECS

DynamoDB

S3

CI/CD pipelines

Job description

Insight Global is sourcing a Senior Backend Software Engineer for a leading fintech client to design, build, and evolve scalable payment platform services. You will work across onboarding, payments, settlement, FX, and core financial operations, collaborating with product, compliance, and operations to deliver production-ready capabilities.

You will mentor mid-level engineers, modernize infrastructure, and leverage cloud and AI-enabled tools to improve productivity and code quality in a