Senior Backend Engineer - Fintech/Payments, Aws

Finyks; Santiago; On-site; CLP 42,000,000 - 65,000,000; Full time

Job summary

Insight Global's client, a leading global financial technology organization, is seeking a Senior Backend Software Engineer to design, build and enhance the payments platform across onboarding, settlement, FX, and transactions.

You will work across product, compliance, and operations, mentor engineers, and drive modernization of cloud-based services while leveraging AI-assisted development tools.

Qualifications

• 6+ years of backend software engineering experience.
• Strong experience with C#/.NET or Java/Go in production systems.
• Experience with microservices and event-driven architectures.
• Cloud experience, AWS preferred.
• Experience with distributed systems and high-volume transactions.
• Familiar with CI/CD pipelines and modern deployment

Responsibilities

• Design, develop, and maintain scalable backend services for payments.
• Build systems for onboarding, payments, settlement, FX, and financial ops.
• Collaborate with product, compliance, and operations to deliver features.
• Develop integrations with external partners.
• Improve service reliability, monitoring, and production readiness.
• Participate in architecture discussions and design reviews.
• Mentor mid-level engineers.
• Drive modernization of cloud infrastructure and SOA.
• Leverage AI-assisted tools to improve productivity.

Skills

Backend design

Communication skills

Mentoring

Cloud awareness

AI tools

Product focus

Fast-paced work style

Tools

C#/.NET

Java

Go

AWS

SQS

Lambda

ECS

DynamoDB

S3

Copilot

Job description

Senior Backend Software Engineer

Insight Global is partnering with a leading global financial technology organization focused on cross-border payments and currency exchange solutions. Supporting both businesses and consumers, the company operates at significant scale while maintaining an agile engineering environment where innovation, ownership, and collaboration drive product development. This is an opportunity to help build and modernize critical financial systems that support customers across multiple international markets.

About the Role

Insight Global's client is seeking a Senior Backend Software Engineer to play a key role in designing, building, and enhancing the next generation of its payments platform. This individual will contribute across the full software development lifecycle, from architecture and system design through production deployment and operational support. The role offers the opportunity to work closely with product, compliance, operations, and engineering leaders while developing highly scalable backend services that support payment processing, settlement, onboarding, and financial transactions. The ideal candidate is a technically strong engineer who enjoys solving complex problems, driving modernization efforts, mentoring others, and taking ownership of systems in production.

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 and Requirements

• 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.

We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal employment opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment without regard to race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances.