Backend Developer – Mid-level

iblue

Backend Developer responsible for API development and integration using Java and Spring Boot. Join a team focused on digital transformation and innovation.

Posted 7/12/2026full-timeRemote • 🇧🇷 BrazilMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in backend API development using Java (Spring Boot) and RESTful services, with a strong focus on integration, error handling, and API documentation. Proficient in implementing authentication mechanisms and supporting testing and validation processes.

Highest-signal resume keywords

Java DevelopmentSpring Boot FrameworkREST API ImplementationAPI Documentation (Swagger/OpenAPI)Database Knowledge (Relational/NoSQL)

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

Backend DevelopmentAPI DevelopmentMicroservices IntegrationError HandlingUnit TestingIntegration TestingJWT AuthenticationSession ManagementAPI ValidationContinuous Improvement

Tech Stack

Tools & technologies

JavaNoSQLSpringSpring BootSpringBoot

About the role

Key responsibilities & impact

Develop backend APIs in Java (Spring Boot) following established patterns;
Implement and evolve REST endpoints documented via OpenAPI/Swagger;
Implement integrations with external systems and microservices;
Support implementation of authentication based on JWT / session management;
Implement error handling and standardize API responses;
Support testing (unit and integration) and API validation;
Work on bug fixes and continuous improvement of services.

Requirements

What you’ll need

3+ years of backend development experience;
Experience with Java or another modern backend language;
Experience with REST APIs;
Knowledge of databases (relational or NoSQL);
Basic knowledge of API documentation (Swagger/OpenAPI).

Benefits

Comp & perks

Health & Wellness program 🧘‍♀️🧘‍♂️ — SulAmérica health plan for you (national coverage, ward-level coverage, with co-payment);
Gym membership (TotalPass);
Latest-generation laptop;
Transportation allowance (Vale Transporte);
Meal allowance: R$770.00/month — you can choose to load the amount to a meal card (VR) or to the Flash card to use as you prefer;
Referral bonus for candidate recommendations;
Partnership with Creditas financial services;
Annual performance review;
Training at iblue Academy;
Udemy training access;
Certifications (AWS, Microsoft, IBM, and H2O);
Educational partnerships (possible financial assistance tied to performance review);
Structured Y career path (you can choose the management or specialist track).