Middle Full Stack Engineer, Frontend Focus

Sigma Software Group

Middle Full Stack Engineer at Sigma Software creating high-performance solutions for a pet products marketplace. Responsibilities include developing distributed systems and collaborating with teams.

Posted 4/16/2026full-timeRemote • 🇧🇷 BrazilMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

Amazon RedshiftAWSAzureCassandraCloudDistributed SystemsDockerHBaseJavaKubernetesLinuxMicroservicesMongoDBNoSQLReactUnix

About the role

Key responsibilities & impact

Design, develop, and implement large-scale distributed systems capable of handling high data volumes
Build scalable, low-latency, and fault-tolerant solutions
Develop APIs and event-driven architectures to meet system requirements
Implement unit, API, regression, and performance testing strategies
Work with React for frontend development
Optimize solutions for scalability, reliability, and high performance
Collaborate with cross-functional teams to resolve production incidents quickly
Participate in code reviews and contribute to continuous improvement of development processes

Requirements

What you’ll need

At least 4 years of experience in software development with Java and object-oriented programming
Strong understanding of OOP principles, design patterns, algorithms, and data structures
Experience in building multi-tier web applications and REST APIs
Experience with frontend frameworks such as React
Hands-on experience in Linux/Unix environments
Practical knowledge of cloud platforms (AWS, Google Cloud, or Azure)
Familiarity with relational and NoSQL databases (HBase, Cassandra, MongoDB, Redshift)
Bachelor’s or Master’s degree in Computer Science, Engineering, or related field
Experience with microservices architecture will be a plus
Knowledge of CI/CD pipelines and DevOps practices
Familiarity with containerization tools (Docker, Kubernetes)

Benefits

Comp & perks

flexible work format — remote, onsite, or hybrid
professional growth opportunities

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 & Tools

Javaobject-oriented programmingAPIsevent-driven architectureunit testingAPI testingregression testingperformance testingmicroservices architecturedesign patterns

Soft Skills

collaborationproblem-solvingcontinuous improvement

Certifications

Bachelor’s degree in Computer ScienceMaster’s degree in Computer Science