Senior Backend Engineer - Java (Remote)

OscilarBrazil - Remote

Remote Full-time

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Experience Level

Senior

Qualifications

Minimum of 5 years of experience in backend development, preferably with Java and AWS. Strong understanding of microservices architecture and RESTful API design. Experience with database technologies such as SQL and NoSQL. Excellent problem-solving skills and a proactive attitude towards challenges. Ability to work effectively in a collaborative environment. Strong communication skills, both written and verbal.

About the job

Join Us in Shaping the Future of Trust in the Age of AI
At Oscilar, we are at the forefront of developing the most sophisticated AI Risk Decisioning™ Platform. Financial institutions, fintechs, and other digital enterprises count on us to effectively manage their fraud, credit, and compliance risks utilizing AI technology. If you are driven by the challenge of tackling intricate problems and enhancing internet safety for all, we welcome you to apply.

Why Choose Oscilar?

Mission-Driven Teams: Collaborate with seasoned experts from notable firms such as Meta, Uber, Citi, and Confluent, all committed to the mission of enhancing digital safety.
Empowerment and Impact: At Oscilar, we embrace a culture of extreme ownership. You will have the autonomy to take charge, act swiftly, and make impactful decisions that propel our mission forward.
Innovate at the Cutting Edge: Your contributions will influence how contemporary finance identifies fraud and manages risk.

Position Overview

As a Senior Backend Engineer at Oscilar, you will be instrumental in designing, constructing, and maintaining the foundational infrastructure of our SaaS platform. You will work closely with cross-functional teams to deliver scalable, low-latency, and highly reliable services that cater to our global enterprise clientele.

Key Responsibilities

Develop and design scalable, high-performance, and low-latency backend services utilizing Java and AWS technologies.
Work collaboratively with product management, frontend, and QA teams to outline technical requirements and ensure seamless integration with other platform components.
Enhance and optimize existing services for maximum performance, reliability, and maintainability.
Identify and remedy system bottlenecks to ensure optimal resource usage and system stability.
Implement industry best practices for code quality, testing, and deployment, including CI/CD pipelines.
Monitor backend services' health and performance proactively, taking necessary measures to address potential issues.
Provide mentorship and technical guidance to junior engineers.

Qualifications

Minimum of 5 years of experience in backend development, preferably with Java and AWS.
Strong understanding of microservices architecture and RESTful API design.
Experience with database technologies such as SQL and NoSQL.
Excellent problem-solving skills and a proactive attitude towards challenges.
Ability to work effectively in a collaborative environment.
Strong communication skills, both written and verbal.

About Oscilar

Oscilar is dedicated to pioneering advanced AI solutions that empower organizations to manage risk in a digital world. Our platform leverages cutting-edge technology to provide reliable decisioning for fraud, credit, and compliance.

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Senior Backend Engineer - Java (Remote)

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Full-time|Remote|Brazil - Remote

Join Us in Shaping the Future of Trust in the Age of AIAt Oscilar, we are at the forefront of developing the most sophisticated AI Risk Decisioning™ Platform. Financial institutions, fintechs, and other digital enterprises count on us to effectively manage their fraud, credit, and compliance risks utilizing AI technology. If you are driven by the challenge of tackling intricate problems and enhancing internet safety for all, we welcome you to apply.Why Choose Oscilar?Mission-Driven Teams: Collaborate with seasoned experts from notable firms such as Meta, Uber, Citi, and Confluent, all committed to the mission of enhancing digital safety.Empowerment and Impact: At Oscilar, we embrace a culture of extreme ownership. You will have the autonomy to take charge, act swiftly, and make impactful decisions that propel our mission forward.Innovate at the Cutting Edge: Your contributions will influence how contemporary finance identifies fraud and manages risk.Position OverviewAs a Senior Backend Engineer at Oscilar, you will be instrumental in designing, constructing, and maintaining the foundational infrastructure of our SaaS platform. You will work closely with cross-functional teams to deliver scalable, low-latency, and highly reliable services that cater to our global enterprise clientele.Key ResponsibilitiesDevelop and design scalable, high-performance, and low-latency backend services utilizing Java and AWS technologies.Work collaboratively with product management, frontend, and QA teams to outline technical requirements and ensure seamless integration with other platform components.Enhance and optimize existing services for maximum performance, reliability, and maintainability.Identify and remedy system bottlenecks to ensure optimal resource usage and system stability.Implement industry best practices for code quality, testing, and deployment, including CI/CD pipelines.Monitor backend services' health and performance proactively, taking necessary measures to address potential issues.Provide mentorship and technical guidance to junior engineers.QualificationsMinimum of 5 years of experience in backend development, preferably with Java and AWS.Strong understanding of microservices architecture and RESTful API design.Experience with database technologies such as SQL and NoSQL.Excellent problem-solving skills and a proactive attitude towards challenges.Ability to work effectively in a collaborative environment.Strong communication skills, both written and verbal.

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CI&T combines human expertise with artificial intelligence to deliver scalable technology solutions. With a global team of over 8,000 professionals and more than three decades of experience, CI&T has completed AI projects for clients across various industries. Location note: Candidates living in the Metropolitan Region of Campinas must comply with the current office attendance policy. Role overview This Senior Java and React Developer role supports a project in the insurance sector. The position involves full-stack development, focusing on building and enhancing business-critical applications. The aim is to deliver modern, scalable, and integrated solutions that emphasize quality, performance, and user experience. Collaboration is central to this role. Work closely with multidisciplinary teams, engage with clients, and contribute to ongoing improvements in processes and technical solutions. What you will do Develop and maintain applications using Java and React Implement microservices with a focus on scalability, performance, and security Integrate systems with cloud services to support efficiency and reliability Collaborate with teams to define and deliver new features Participate in code reviews and maintain software quality standards Troubleshoot and resolve issues related to performance and scalability Support legacy system architectures as needed Develop event-driven solutions using tools such as Kafka Document processes, technical solutions, and architectural decisions Identify and implement continuous improvements with team members and clients Requirements Strong experience developing with Java Front-end development experience with React Experience working with both relational and non-relational databases (such as SQL Server and MongoDB) Knowledge of RESTful APIs and system integration Familiarity with DevOps practices and CI/CD tools Understanding of agile methodologies, including Scrum and Kanban Ability to identify problems and proactively suggest improvements Preferred qualifications Experience using Generative AI to enhance productivity Background with cloud platforms such as AWS, Azure, or Google Cloud Experience with orchestration tools

Apr 20, 2026

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