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Sioux digital 1:1

Mid-Level Back-End Developer

Sioux digital 1:1

. Build and document RESTful APIs .

Posted 11/12/2026full-timeSão Paulo • BrazilMid-LevelSeniorWebsite

Core Competencies

Role fit
Core Competencies

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Demonstrates expertise in building and documenting RESTful APIs, developing backend applications with Java and Spring Boot, and implementing microservices architecture. Proficient in database management with Oracle and PostgreSQL, and experienced in agile methodologies and cross-functional collaboration.

Highest-signal resume keywords
Java DevelopmentSpring Boot FrameworkRESTful API DevelopmentOracle Database ManagementPostgreSQL Database Management

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
RESTful API DevelopmentJava DevelopmentSpring Boot FrameworkUnit TestingApache CamelMicroservices ArchitectureMessaging SystemsVersion Control (Git, GitHub)Agile MethodologiesBatch Processing
Soft Skills
CollaborationCode ReviewCommunication
Tools & Technologies
ApigeeAWS API GatewayDockerKubernetesRabbitMQApache KafkaAWS SQS
Industry Keywords
MicroservicesSystem IntegrationCross-Functional TeamsPerformance OptimizationScalability

Tech Stack

Tools & technologies
ApacheAWSDockerJavaJUnitKafkaKubernetesOpenShiftOraclePostgresRabbitMQSpringSpring BootSpringBoot

About the role

Key responsibilities & impact
  • Build and document RESTful APIs
  • Develop backend applications using Java and Spring Boot
  • Implement and manage API gateways (Apigee, AWS API Gateway)
  • Develop system integration solutions using Apache Camel
  • Implement inter-microservice communication using messaging systems (Kafka, RabbitMQ)
  • Integrate legacy systems with new applications
  • Connect to third-party APIs and external services
  • Work with Oracle and PostgreSQL databases
  • Participate in code reviews and unit and integration testing
  • Collaborate with cross-functional teams to deliver projects
  • Contribute to the architecture, implementation, maintenance, performance, scalability, and quality of applications

Requirements

What you’ll need
  • Experience with Java and Spring Boot
  • Experience with unit testing (JUnit, Karma, Jasmine)
  • Familiarity with Oracle and/or PostgreSQL databases
  • Experience developing and documenting REST APIs
  • Experience using version control tools (Git, GitHub)
  • Experience working on projects using agile methodologies, as part of teams practicing Scrum and/or Kanban
  • Experience with microservices architecture running in Docker containers and orchestrated by Kubernetes (OpenShift, AKS, or EKS) — a plus
  • Knowledge of Apache Camel — a plus
  • Experience with messaging systems (RabbitMQ, Apache Kafka, AWS SQS) — a plus
  • Experience with API managers/gateways (Apigee or AWS API Gateway) — a plus
  • Experience working on projects using Java Spring Batch and batch processing of large data volumes — a plus

Benefits

Comp & perks
  • Meal and/or food allowance
  • Medical and dental insurance
  • Transportation allowance
  • Life insurance
  • Financial assistance for courses, certifications, and events
  • Birthday gift
  • Remote work allowance
  • E-learning platform with free access to a learning path
  • Childcare assistance
  • Referral program with bonuses
  • Hybrid work schedule: 3 days onsite and 2 days working from home