Immediate Joiner - Senior Full-Stack Developer (Bilancio Legacy System

Job Description

IMMEDIATE JOINER : SENIOR FULL STACK DEVELOPER Job Title: Senior Full-Stack Developer (Bilancio Legacy System & iOS App) Location: Goregaon, Mumbai & Thane, Maharashtra Employment Type: Full-time, Day shift Reports to: CTO / Head of Technology Working Days: Monday to Friday Overview We are seeking a highly skilled full-stack developer to maintain, support, and enhance the Bilancio legacy system , a complex and mission-critical platform. This role requires expertise in Angular, Node.js, AWS infrastructure, MongoDB, serverless architecture, and iOS app maintenance . The developer will take full responsibility for both the web platform and the iOS application , ensuring seamless API communication and high availability. This is not a standard development roleit requires deep expertise in managing cloud infrastructure, securing mission-critical APIs, troubleshooting production issues, and maintaining a connected iOS application . The ideal candidate will be self-sufficient, proactive, and comfortable working in a high-responsibility role . Key Responsibilities : System Maintenance & Development Maintain and enhance the Bilancio platform built with Angular (frontend), Node.js (backend), and MongoDB Atlas (database) . Manage and optimize over 300 APIs exposed via AWS API Gateway. Develop and update AWS Lambda functions (Python, Node.js) to support business logic. Maintain and improve cron jobs and scheduled tasks. Support, maintain, and update the iOS app , ensuring it integrates seamlessly with the backend APIs. iOS Application Management Maintain and troubleshoot the existing iOS app , ensuring performance, security, and compatibility with API updates. Debug and resolve API-related issues impacting mobile users. Ensure ongoing compatibility with Apples latest iOS updates and guidelines. Coordinate App Store submissions , updates, and bug fixes as required. Work with stakeholders to prioritize new features or modifications to the mobile app. AWS Infrastructure & DevOps Own and manage AWS infrastructure , including: EC2 dedicated autoscaling instances (Node.js runtime). MongoDB Atlas dedicated autoscaling cluster . AWS VPC with complex security groups . S3 buckets for file storage and processing . Serverless Framework (Lambda, API Gateway, CloudFormation, IAM policies, etc.) . Monitor and respond to daily operational issues, performance concerns, and outages. Optimize AWS costs while ensuring system reliability and security. Improve automation, CI/CD pipelines, and infrastructure as code . Support & Troubleshooting Provide daily monitoring and proactive incident management to ensure system uptime. Investigate and resolve support tickets , addressing bugs and user-reported issues for both the web and iOS platforms. Identify and address performance bottlenecks in the application and infrastructure. Security & Compliance Maintain strict security policies , ensuring compliance with best practices for authentication, data protection, and access control . Manage complex AWS security group configurations and ensure least-privilege access principles are applied. Ensure that the iOS app follows security best practices for API communication and user data protection. Collaboration & Documentation Work closely with business stakeholders to understand feature requirements and priorities. Maintain comprehensive documentation for infrastructure, APIs, and system dependencies. Provide technical guidance and knowledge transfer to other team members as needed. Required Skills & Experience Essential Technical Skills Frontend: Angular (Bootstrap UI framework). Backend: Node.js (Express, API Gateway integrations). Database: MongoDB Atlas (Dedicated Autoscaling Cluster). AWS Expertise (MUST-HAVE): EC2 autoscaling, VPC, security groups AWS Lambda (extensive usage) API Gateway (300+ endpoints) S3, IAM roles, CloudFormation Monitoring with CloudWatch DevOps & Infrastructure: Managing complex AWS environments (production scale) CI/CD pipelines, Infrastructure as Code (Serverless Framework, Terraform, or similar) iOS App Development & Maintenance: Experience working with Swift and managing iOS applications. Strong understanding of RESTful APIs and mobile-backend communication. Familiarity with Apple App Store submission and compliance processes . Other: Python (for Lambda functions), cron job management. Nice-to-Have Skills Familiarity with React (potential frontend updates). Experience with App Store Connect, provisioning profiles, and iOS certificate management . Who You Are Independent, self-starter: You can manage and maintain a complex system with little oversight. Highly analytical: Able to quickly debug, diagnose, and resolve production issues. Problem solver: You take ownership of technical challenges and propose smart solutions. Strong communicator: Able to explain technical concepts to both developers and business stakeholders. Security-conscious: You prioritize security in application and infrastructure design. Why Join Us? High-impact role: You'll be managing a critical, high-traffic system. Autonomy & ownership: Full responsibility over the entire AWS infrastructure, web platform, and iOS app. Challenging work: Complex security models, high-availability APIs, and legacy-modernization projects. Opportunity to improve & innovate: Influence technical decisions and system architecture. To Apply: Send your resume to recruiter@thetalentoasis.com or 9699283173