Software Developer – Integration Hub

N5X

. Develop, build, and evolve N5X’s integration hub .

Posted 11/11/2026full-timeSão Paulo • BrazilMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in developing secure, scalable integration solutions and REST APIs, with a strong focus on distributed systems and observability. Proficient in implementing CI/CD practices and automated testing while collaborating effectively with cross-functional teams.

Highest-signal resume keywords

Java ProgrammingSpring Boot FrameworkREST API DevelopmentEvent-Driven ArchitectureAWS Cloud Services

ATS Keywords

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Hard Skills

Software DevelopmentDistributed SystemsObject-Oriented ProgrammingAutomated TestingIntegration PatternsData ValidationError HandlingMicroservicesMessaging SystemsObservability

Soft Skills

CollaborationProblem-SolvingTechnical Communication

Tools & Technologies

DockerRabbitMQKafkaAWS SQSTerraformCloudFormation

Industry Keywords

Financial ServicesEnergy Market InfrastructureIntegration PlatformsMarket InfrastructureFIX Gateways

Tech Stack

Tools & technologies

AWSAzureDockerGoogle Cloud PlatformJavaKafkaRabbitMQSpringSpring BootSpringBootTerraform

About the role

Key responsibilities & impact

Develop, build, and evolve N5X’s integration hub
Code secure, resilient, scalable, and observable solutions to connect internal systems, market participants, and external partners
Implement information flows that support critical processes in energy market infrastructure
Develop and maintain REST APIs, microservices, and messaging, event-driven, and file-processing components
Implement integration flows with error handling, retries, ordering, idempotency, data validation, and transformation
Write clean, testable, and well-documented code, ensuring automated test coverage and adherence to team standards
Instrument solutions with structured logs, metrics, and tracing
Apply security requirements, including authentication, authorization, encryption, and data protection
Participate in code reviews, technical discussions, and backlog refinement
Collaborate on the automation of CI/CD pipelines, integration testing, and secure deployment processes
Investigate and resolve integration incidents, conducting root-cause analysis and implementing production fixes
Work in partnership with technical leadership, Architecture, Product, Information Security, Operations, and the team’s engineers

Requirements

What you’ll need

Strong experience in software development, with a focus on distributed systems and integration platforms
Deep knowledge of object-oriented programming, preferably using Java and Spring Boot
Proficiency in building and consuming REST APIs and contract-based integration (JSON/XML, versioning, authentication)
Hands-on experience with event-driven architectures and messaging (e.g., RabbitMQ, Kafka, or AWS SQS/SNS)
Experience with automated testing (unit, integration, and contract testing) and CI/CD practices
Familiarity with relational and non-relational databases
Practical knowledge of observability (logs, metrics, and tracing in distributed systems)
Experience using containers (Docker) and familiarity with cloud environments (AWS/GCP/Azure)
Knowledge of resilience and integration patterns (Circuit Breaker, Dead Letter Queue, Retry Pattern)
Hands-on experience with AWS managed cloud services focused on integration and serverless computing
Experience or knowledge of the financial services, energy, payments, or market infrastructure industries
Experience implementing financial-market-specific integrations, such as FIX gateways and SPB, SELIC, and/or PIX messaging
Familiarity with infrastructure as code (Terraform, CloudFormation) and SRE practices
Advanced English proficiency for technical meetings, documentation, and interaction with international partners

Benefits

Comp & perks

Bonus: Up to two monthly salaries per year
Meal Voucher: BRL 43.68 per business day
Food Voucher: BRL 832.00 per month
Transportation Voucher or Mobility Allowance: Round-trip transportation for in-office days, with no payroll deduction
Health Plan: SulAmérica with co-payments for the employee and eligible dependents—children and spouse
Wellhub partnership with SulAmérica
Life Insurance: MetLife
Childcare Assistance: Reimbursement of up to 40% of the standard salary for children up to 24 months old and 35% for children between 24 and 71 months old
Financial Assistance for Employees with Children with Disabilities: Amount equivalent to 50% of the standard salary
Birthday Day Off!