Job Description:
We are seeking a highly experienced Project Technical Lead to work onsite. The role focuses on driving major enhancements and optimizations for a mission-critical AWS platform built on a complex microservices architecture, processing millions of requests per day . You will leverage your experience to assess, design, and guide refactoring of key backend components , ensuring performance, scalability, and reliability .
Key Responsibilities:
- Assess current applications, integrations, and database architectures to identify areas for optimization.
- Design and document target solutions with detailed artifacts: system designs, component/ER/sequence diagrams, API specifications.
- Lead and execute major enhancements/refactoring for core backend applications (Java) focusing on performance, scalability, and maintainability.
- Propose optimizations for application logging to support troubleshooting and operations.
- Support maintenance teams in resolving critical issues, providing rapid root-cause analysis and workarounds.
- Collaborate with multiple teams (frontend, backend, mobile, external partners) to ensure end-to-end integration.
- Conduct deep performance analysis of Java applications: threading, concurrency, memory management, high throughput (~5-10K RPS).
- Drive database performance initiatives: schema review, query tuning, and data access optimization.
- Work with DevOps teams to integrate CI/CD pipelines and implement monitoring/alerting strategies.
- Clearly communicate technical solutions and design decisions to stakeholders.
Required Skills & Competencies:
Technical Skills:
- Proven experience with large-scale, mission-critical systems on microservices architecture (preferably AWS).
- Extensive expertise in Java & SpringBoot , including multithreading, concurrency, memory management, race condition handling, high throughput systems.
- Experience supporting systems with millions of requests/day (~5-10K RPS).
- Familiarity with NodeJS, Kotlin, Swift, ReactJS .
- Strong background in database design & optimization (Postgres, Mongo Atlas, Oracle Cloud DB).
- Hands-on experience with integration patterns: REST APIs, Kafka, AWS SQS/SNS, Firebase, Apple APNS.
- Skilled with DevOps tools : Jira, Bitbucket, AWS Code Commit, Jenkins, Tekton Pipelines, Bitbucket Pipelines.
- Experience in system observability & monitoring : AWS CloudWatch, Prometheus, Grafana, New Relic, True Watch, Guance, Firebase.
Core Competencies:
- Strong ability to drive technical assessments, architecture redesign, and large-scale optimizations.
- Excellent documentation skills: from high-level overviews to detailed specifications.
- Proven problem-solving skills under tight timeframes for production issues.
- Confident communicator capable of leading discussions with technical & business stakeholders.
- Proactive leadership, managing competing priorities in dynamic environments.
- Collaborative mindset fostering teamwork across diverse teams.
Domain Experience: Taxi Dispatch, Retail, Billing System, Payment Integration
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