Software Engineer, Java/Python

First Help Financial

. Design, develop, and maintain back-end applications using Java (Spring Boot), Python, AWS .

Posted 10/8/2026full-timeSão Paulo • BrazilMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in back-end application development using Java and Python, with a strong focus on RESTful API design, database management, and AWS services. Proficient in writing clean, maintainable code and implementing real-time data streaming solutions.

Highest-signal resume keywords

Java DevelopmentPython DevelopmentRESTful API DesignAWS ServicesSQL/NoSQL Database Management

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JavaPythonSpring BootRESTful APIsSQLNoSQLMongoDBRedisOracleDBAWS Kinesis Data Streams

Soft Skills

Problem-SolvingDebuggingIndependent Work

Tools & Technologies

AWS EC2AWS S3AWS LambdaAWS API GatewayAWS SQSAWS RDSJUnitMockito

Certifications & Qualifications

Bachelor's Degree in Computer ScienceMaster's Degree in Software Engineering

Industry Keywords

Back-End DevelopmentSoftware EngineeringClean CodeSOLID Principles

Tech Stack

Tools & technologies

AWSEC2JavaJUnitMockitoMongoDBNoSQLPythonRedisSpringSpring BootSpringBootSQL

About the role

Key responsibilities & impact

Design, develop, and maintain back-end applications using Java (Spring Boot), Python, AWS
Deal with both serverless and server-based applications understanding what comes into account when using each one
Build and manage RESTful APIs for seamless data exchange between front-end and back-end systems
Design and optimize SQL/NoSQL databases (MongoDB, Redis, OracleDB preferred)
Implement and manage real-time data streaming using AWS Kinesis Data Streams (KDS)
Write clean, well-documented, and testable code to ensure high quality and maintainability
Work independently with minimal supervision in an ambiguous and fast-paced environment
Stay up-to-date with modern technologies and apply best practices such as SOLID and Clean Code

Requirements

What you’ll need

Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field required
5+ years of professional back-end development experience
Strong proficiency in Java, Python or any JVM-based language
Solid understanding of RESTful API design and development
Experience with both SQL/NoSQL databases (MongoDB, Redis, OracleDB preferred)
Experience with AWS services (ex: EC2, S3, Lambda, API Gateway, SQS, RDS)
Experience with AWS Kinesis Data Streams (KDS)
Experience with testing tools like JUnit, unittest and mock tools like Mockito, MagicMock and so on
Excellent problem-solving and debugging skill

Benefits

Comp & perks

Generous salaries
Social activities
Monthly lunches
Robust employee recognition and talent development program
Healthy work-life balance
Career growth opportunities
Career planning support
Company investment in employee development
Interview accommodations for people with special needs