Senior Backend Engineer, Core APIs

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Backend Engineer, Core APIs based in Brazil.

Join a globally distributed engineering team building high-performance backend systems that power large-scale, real-time applications. In this role, you'll design and optimize scalable APIs and distributed services that support mission-critical fraud detection technology used by organizations worldwide. You'll own features from architecture through deployment while collaborating with talented engineers across multiple disciplines in a fully remote environment. This is an opportunity to solve complex technical challenges involving scalability, performance, and reliability while working with modern technologies and cloud-native architectures. If you're passionate about backend engineering, distributed systems, and continuous improvement, you'll find an environment that values technical excellence, autonomy, and knowledge sharing.

• Design, develop, and maintain scalable backend systems and APIs capable of processing large volumes of real-time data with high reliability and performance.
• Build, optimize, and enhance distributed services while ensuring seamless integration across platform components.
• Investigate complex technical issues through root cause analysis, experimentation, and performance testing to deliver effective engineering improvements.
• Monitor, debug, and optimize backend services to maintain system stability, scalability, and operational efficiency.
• Collaborate closely with cross-functional engineering teams to deliver robust, production-ready solutions.
• Participate in a shared on-call rotation, contributing to operational excellence and rapid incident resolution.
• Promote engineering best practices, contribute to a data-driven development culture, and mentor junior engineers to support their technical growth.

Requirements

• 5+ years of professional experience in backend software engineering.
• Strong hands-on experience with Go (Golang) and/or Node.js, with a willingness to work across both technologies.
• Proven expertise designing, building, and maintaining scalable backend systems, APIs, microservices, and real-time processing platforms.
• Solid understanding of distributed systems architecture, scalability challenges, and performance optimization techniques.
• Strong experience working with SQL databases and technologies such as DynamoDB, Redis, Elasticsearch, or similar data storage solutions.
• Proficiency with modern software engineering practices, including Git, CI/CD pipelines, shell scripting, and development tools.
• Excellent English communication skills with experience collaborating effectively in fully remote, international teams.
• Ability to work independently while contributing to collaborative engineering initiatives.
• Passion for mentoring teammates and fostering a culture of continuous learning.
• Bachelor's or Master's degree in Computer Science or a related field, or equivalent practical experience, is preferred.
• Experience with Terraform, AWS CloudFormation, ClickHouse, Snowflake, BigQuery, Redshift, Databricks, Datadog, Docker, Kubernetes, TypeScript, Express, or dbt is considered a strong advantage.
• Familiarity with internet security, privacy technologies, open-source development, and asynchronous collaboration is highly desirable.

Benefits

• Fully remote position with the flexibility to work from anywhere in India.
• Opportunity to solve challenging large-scale engineering problems using modern backend technologies.
• Work within a globally distributed engineering team focused on collaboration, innovation, and technical excellence.
• Exposure to cutting-edge distributed systems, cloud-native infrastructure, and real-time data processing.
• Strong culture of knowledge sharing, mentorship, and continuous professional development.
• Participation in impactful engineering projects with significant ownership and autonomy.
• Inclusive and diverse work environment that values different perspectives and backgrounds.
• Competitive compensation aligned with experience and local market conditions.
• Flexible work environment designed to support work-life balance.