Senior Backend Developer, Golang

Zup Innovation

. Develop backend solutions focused on high performance, security, and scalability for core banking systems.

Posted 10/28/2026full-timeRemote • BrazilSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in backend development using Go, with a strong focus on building secure, high-performance RESTful APIs and managing CI/CD pipelines in AWS environments. Proven ability to enhance microservices architecture and ensure technical quality through rigorous testing and code reviews.

Highest-signal resume keywords

Backend Development Using GoAWS Services ProficiencyCI/CD Pipeline ManagementRESTful API Design and ImplementationEvent-Driven Architecture Experience

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Backend DevelopmentAPI DevelopmentUnit TestingIntegration TestingPerformance TestingMicroservices ArchitectureDocker ContainersEvent-Driven ArchitectureSecurity for APIsObservability Concepts

Soft Skills

CollaborationKnowledge SharingTechnical Leadership

Tools & Technologies

AWS EKSAWS FargateDynamoDBKafkaSQSSNSAPI GatewayDockerCI/CD ToolsDistributed Tracing Tools

Industry Keywords

Core Banking SystemsPayment ProcessingFinancial Systems

Tech Stack

Tools & technologies

AWSCloudDockerDynamoDBKafkaOpen SourceGo

About the role

Key responsibilities & impact

Develop backend solutions focused on high performance, security, and scalability for core banking systems.
Design, implement, and document robust APIs, ensuring alignment with industry best practices.
Actively contribute to microservices architecture by proposing continuous improvements and exploring new technical solutions.
Define and enhance CI/CD pipelines, promoting end-to-end automation from testing through deployment in AWS environments.
Ensure high coverage of unit, integration, and performance tests.
Serve as a guardian of the technical quality of deliverables.
Participate in and lead code review sessions.
Foster technical excellence and share knowledge across the team.
Work in a dynamic, collaborative team focused on technical excellence, using a Go- and AWS-based stack.

Requirements

What you’ll need

Strong experience in backend development using Go (Golang).
Proficiency with AWS services, particularly EKS/Fargate, relational databases, DynamoDB, queues, topics, and API Gateway.
Advanced knowledge of Docker containers and orchestration.
Proven ability to design, build, and consume secure, high-performance RESTful APIs.
Consistent experience automating unit, integration, and performance testing.
Experience managing CI/CD pipelines.
Familiarity with observability concepts and tools in cloud environments, including logs, metrics, and distributed tracing.
Previous experience working with financial systems, payment processing, or core banking.
Strong experience with event-driven architectures and messaging platforms such as Kafka, SQS, or SNS.
In-depth knowledge of security for critical APIs, including OAuth 2.0, rate limiting, and advanced validation.
Experience deploying and maintaining highly available, resilient environments on AWS.
Active participation in technical communities or contributions to open-source projects related to the Go or AWS ecosystems.

Benefits

Comp & perks

Remote-first work model
Freedom to work from anywhere
Flexible hours
Education allowance
Dedicated career development platform
Internal guilds and study and interest groups
Health insurance
Dental insurance
24/7 telemedicine
Free online therapy
Wellhub
Extended maternity leave
Extended paternity leave
CAZ – Zuppers Support Center
Meal and food allowance
Life insurance
Transportation allowance
Home office allowance
Childcare allowance
Mobile phone plan allowance
Profit-sharing and results-based bonus