Software Development Engineer III/IV - Backend Architecture

Role : SDE 3 / SDE 4 (Backend - Payments & Core Banking)Location : Bangalore (On-Site)Experience : 5 to 9 YearsCore Stack : Java, Golang, Kafka, AWS, Distributed SQLFocus : Scalability, High Availability, and API OrchestrationMission : Building the Digital RailsYou will join a mission-critical pod responsible for architecting backend systems that handle millions of requests per second. At this level, you aren't just "writing features"; you are designing for 99.99% uptime and ensuring that our transaction success rates remain industry-leading even during massive traffic surges (e.g., festive sales or flash deals).Role & Responsibilities :Technical Execution & Ownership :- Distributed Excellence : Design and implement robust, event-driven microservices using Java or Golang. Solve for complex challenges like transaction atomicity, idempotency, and distributed consistency.- Database & Scale : Manage large-scale data persistence using MySQL/PostgreSQL (sharded) and NoSQL stores. Implement sophisticated caching (Redis) to minimize database contention.- Concurrency & Performance : Profile and optimize the "hot path" of transactions. You will be responsible for sub-second API latencies and ensuring the system scales horizontally under load.Leadership & Standards :- Code Stewardship : Lead by example with "Clean Code," TDD (Test Driven Development), and SOLID principles. Own the peer-review process for your pod.- System Design : Write and defend Technical Design Documents (TDDs) for new product features, ensuring they are scalable, secure, and maintainable.- Mentorship : Act as a force-multiplier by mentoring SDE-1 and SDE-2 engineers, helping them master the nuances of distributed systems.Domain-Specific Challenges (Fintech 2026) :- Real-time Verification : Collaborate with Risk teams to integrate AI-driven fraud checks into the checkout flow without adding latency.- Compliance : Ensure all code adheres to data localization (RBI) and security (PCI-DSS) standards by default.Required Pedigree :- Track Record : 5- 9 years of experience in backend development at a high-scale B2C or B2B tech company (Fintech, E-commerce, or SaaS).- Education : B.Tech/M.Tech in Computer Science from a Tier-1 institute (IITs, NITs, BITS).- Skills : Expert-level mastery of Data Structures, Algorithms, and System Design. Deep understanding of AWS (EKS, RDS, S3).Why Join?- Pure Impact : See your code impact millions of merchants and consumers in real-time.- Zero Bureaucracy : We value "Shipping Code" over "Status Meetings."- Wealth Creation : Competitive cash components supplemented by high-upside ESOPs. (ref:hirist.tech)