Sr Software Engineer, Ruby on Rails

Delivers complete solutions spanning all phases of the Software Development Lifecycle (SDLC) (design, implementation, testing, delivery and operations), based on definitions from more senior roles. Advises immediate management on project-level issues Guides junior engineers Operates with little day-to-day supervision, making technical decisions based on knowledge of internal conventions and industry best practices Applies knowledge of technical best practices in making decisions Implement and enhance observability frameworks including logging, tracing, metrics, and alerting using Splunk, Datadog, Sentry, and PagerDuty. Collaborate with SRE and cloud teams to design and maintain high-availability architectures across AWS and GCP. Contribute to on-call rotations and ensure incident response readiness across critical systems. Design, build, and optimize backend services and APIs using Ruby on Rails and PostgreSQL data systems. Collaborate with cross-functional teams to deliver secure, scalable, and reliable payment solutions. Participate in code reviews, design discussions, and technical planning to drive excellence in system architecture and development. Build automation, integration pipelines, and scalable components leveraging AWS / GCP cloud services. 3+ years relevant experience and a Bachelor's degree OR Any equivalent combination of education and experience. In your day-to-day role you will work on designing and building solutions for enterprise merchants with the objective of helping streamline onboarding, increase authorization rates, reduce costs, reduce fraud, and drive conversion. We practice test-driven development and strongly encourage a culture of pair programming. Developers test, release, and monitor their own code. We keep the team coordinated with daily stand-ups and have regular retrospectives to inspect and adapt our working model and processes to increase quality and effectiveness. We value unique perspectives brought by diverse backgrounds and experiences. A broad range of ideas and perspectives help us to create the best possible product. Minimum of 3 years of relevant work experience and a bachelor's degree or equivalent experience. Track record in designing and writing understandable, testable, and easy-to-maintain software. Ability and desire to work in our collaborative environment : open team room, pair programming and fluid interactions with all products and operations teams. High interest in Test Driven Development and specific experiences using a test heavy approach to solve problems and create solutions. Solid backend or platform engineering experience in high-availability, transaction-heavy, or FinTech environments. Experience with Ruby on Rails for building backend APIs and services. Solid SQL development skills with PostgreSQL and GCP BigQuery. Strong proficiency with AWS and GCP Cloud infrastructure and services. Hands-on expertise in observability tools : Splunk, DataDog, PagerDuty. Proven experience in Incident Management and Problem Management from detection to post-incident review. Excellent troubleshooting, analytical, and collaboration skills across distributed systems. Understanding of Network OSI model, SQS, Kafka, Data Replication, and API integrations. Experience designing scalable architectures in AWS. Exposure to AI / ML, particularly LLM (Large Language Model) integrations. ITIL v4 Certification or demonstrated familiarity with IT service management best practices.