Java-Groovy Developer / AWS / PostgreSQL

About PRAXIS

At PRAXIS, we connect technology talent with international projects where they can make a real impact. For this opportunity, you’ll join a project focused on modernizing enterprise legacy applications and migrating workloads to AWS.

Quick Overview

• Position: Mid-Level Software Engineer
• Location: Remote / Worldwide
• Work Model: 100% Remote
• Schedule: EST working hours
• Experience: Mid-Level
• Start Date: ASAP
• Contract: Freelance
• English: Fluent — mandatory
• Spanish: Nice to have

The Challenge

You’ll work on the modernization and migration of two legacy Java/Groovy applications to AWS, preserving existing functionality while adapting the applications to a modern cloud environment.

Your main responsibilities will include:

• Modernizing and migrating Java/Groovy applications to AWS
• Maintaining and upgrading components using Spring Boot and Gradle
• Supporting PostgreSQL → Amazon Aurora PostgreSQL migration
• Managing integrations with databases, APIs, SFTP/FTP, Snowflake, messaging systems and Control-M
• Handling packaging, deployment, configuration, logging and monitoring
• Troubleshooting migration, connectivity, authentication and integration issues
• Supporting testing, validation and production readiness
• Participating in cutover and rollback activities
• Collaborating with Application, Infrastructure, Database, Security and Operations teams
• Contributing to application stability and performance throughout the migration

Candidate Requirements

We’re looking for a Mid-Level Software Engineer with:

• Solid experience with Java and/or Groovy
• Experience with Spring Boot
• Experience with Gradle
• Hands-on experience maintaining, modernizing or migrating legacy applications
• Experience working with enterprise applications
• Practical experience with AWS

AWS

Experience with:

• S3
• Parameter Store
• SNS
• SQS
• CloudWatch
• ECR

Experience deploying or migrating applications to AWS will be highly valued.

PostgreSQL & Data

• Strong PostgreSQL experience
• Advanced SQL
• Database migration experience
• Experience with Amazon Aurora PostgreSQL / RDS is a plus

Integrations

• HTTP / REST APIs
• SFTP / FTP
• Database integrations
• Snowflake
• Messaging systems
• Control-M
• IBM MQ is a plus

Infrastructure & Troubleshooting

• Linux / Unix troubleshooting
• Ability to diagnose application, database and infrastructure issues
• Experience troubleshooting migration, connectivity, authentication and integration problems
• Knowledge of logging, monitoring, configuration and deployment

CI/CD & Containers — Nice to Have

• GitHub Actions
• CI/CD pipelines
• Docker / Containerization
• Puppet
• Terraform

AWS Networking & Security — Nice to Have

• AWS VPCs, subnets, security groups and DNS
• TLS / mTLS
• Certificate-based authentication
• AWS EFS / FSx

Production & Migration Experience — Nice to Have

• AWS application migration
• Production cutover and rollback
• Testing
• Production readiness
• Application validation

Soft Skills

• Strong collaboration and communication skills
• Analytical and problem-solving mindset
• Ability to work independently
• Comfortable collaborating across Application, Infrastructure, Database, Security and Operations teams

Why PRAXIS?

This is an opportunity to work on real-world technology modernization, helping evolve enterprise applications and move them toward AWS.

You’ll gain exposure to:

AWS Cloud Migration
Java / Groovy
PostgreSQL / Amazon Aurora
Enterprise Integrations
Application Modernization
Production Migration & Cutover

You’ll also work 100% remotely with an international team, with the potential for project continuity into 2027.

Ready for the challenge?

Sueldo: 7.498,00€-7.500,00€ al mes

Ubicación del trabajo: Empleo remoto