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RSS is seeking for an experienced Senior Full-Stack Developer to join our established team. In this role, the successful candidate will be required to work closely with clients and stakeholders. This role is based in Clark Pampanga. About us RSS are dedicated to establishing ourselves as a forefront leader in the resourcing sector globally and we are committed to consistently delivering exceptional value to our clients. Our focus extends beyond excellence in products and services; we prioritize fostering employee satisfaction, cultivating trust, and perpetually innovating to elevate the overall experience for our stakeholders. Why choose us? Day shift HMO Coverage from Day 1: Includes one FREE dependent. Weekends off Competitive renumeration Employee referral incentive program 13th month salary Government contributions Social Security System, PhilHealth, Pag-Ibig, TIN Health insurance Opportunities for promotions within RSS Paid training and development Transportation service provided Inclusive, supportive and fun company culture. Position Summary: We are hiring a Senior Full-Stack Developer with a strong Firebase and backend focus to take a leading role in designing and delivering the platforms core logic, data architecture, and third-party integrations. While youll contribute across the stack, your primary responsibility will be ensuring the robustness, security, and performance of our Firebase-powered backend. Frontend development will be a shared responsibility, with a dedicated Flutter developer to be added to the team. You will work closely with the product engineering team to deliver clean, maintainable code and support the migration of customers to the new platform. Work Setup: Remote Reports To: CTO (Australian Client) Work Hours: Monday to Friday, Philippine daytime hours aligned with Western Australian business operations Key Responsibilities: Lead backend development using Firebase tools, including Firestore, Cloud Functions, Auth, and Firebase Hosting Design and implement scalable, secure Firestore data models and access rules Build and maintain Cloud Functions to handle backend logic, APIs, and third-party integrations (e.g., Xero, email, reporting) Collaborate with frontend developers to define clean interfaces and manage real-time data flows Contribute to Flutter app development, particularly where backend integration and offline caching are critical Replace legacy PostgreSQL-based workflows with Firestore equivalents Set up and maintain CI/CD pipelines and local development tooling using the Firebase Emulator Suite Help guide technical decisions around architecture, scalability, and offline capability Support onboarding and mentoring of future frontend and backend team members. Requirements: 5+ years of full-stack development experience, with at least 2 years of Firebase-focused work (Firestore, Cloud Functions, Auth) Strong experience building serverless backends using TypeScript with Firebase Cloud Functions Deep understanding of Firestore data modelling, security rules, query optimization, and scaling Working knowledge of Flutter and Dart, with the ability to collaborate on UI and state management Familiarity with offline-first patterns, caching, and sync strategies using Firestore and Flutter Hands-on experience with CI/CD workflows, particularly using GitHub Actions, Firebase Hosting, and automated testing Excellent English communication skills and experience working in a distributed, remote-friendly team Nice to Have: Experience rebuilding monolithic platforms using modern cloud-native tools like Firebase and Flutter Background in SaaS platforms for construction, mining, logistics, or asset management industries Knowledge of Flutter state management (e.g., Riverpod, Bloc) and clean architecture practices Familiarity with Firebase Extensions, App Check, and analytics or monitoring tools A working understanding of Python, useful for interpreting legacy systems or supporting internal tooling Comfort in a fast-paced, iterative environment with early-stage product shaping and architectural decision-making Please note, only shortlisted candidates will be contacted to discuss their application. Originally posted on Himalayas