The Role
Design and implement multi-tier, offline-first data synchronization for a global QSR POS: build CRDT-based conflict resolution, apply event sourcing/CQRS/saga patterns, use real-time pub/sub/WebSockets, and model PostgreSQL cloud data layer with reconciliation to local and edge stores.
Summary Generated by Built In
AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards.
WHY JOIN US
If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you!
ABOUT THE ROLE
We are looking for a Senior Software Engineer to own offline-first data synchronization for a global QSR POS platform, designing multi-tier sync across device, restaurant edge, and cloud backend. You will implement conflict-resolution using CRDT-based frameworks including Automerge or Ditto, apply event sourcing, CQRS, and saga patterns across order and payment flows, and model the PostgreSQL cloud data layer against local and edge stores. The role requires hands-on CRDT sync experience, React Native, Node.js, and distributed-systems fundamentals.
WHAT YOU WILL DO
- Design multi-tier synchronization across local device storage, restaurant edge, and cloud backend with offline-first guarantees;
- Implement conflict-resolution strategies using CRDT-based sync frameworks such as Automerge or Ditto, along with vector clocks, last-write-wins, merge policies, and eventual consistency;
- Apply event sourcing, CQRS, and saga patterns for order, kitchen, payment, and receipt workflows;
- Use real-time pub/sub or WebSockets to maintain live state across devices;
- Model the cloud data layer using PostgreSQL and define reconciliation strategies between local, edge, and cloud data stores.
MUST HAVES
- 4+ years of software engineering experience with production distributed-data or synchronization systems;
- Strong experience with React Native, TypeScript, and Node.js;
- Experience with offline-first or local-first data architectures beyond simple caching, including hands-on experience with Automerge, Ditto, or comparable CRDT-based synchronization frameworks;
- Solid understanding of distributed systems fundamentals, including conflict resolution, eventual consistency, idempotency, and ordering;
- Experience with event-driven architectures and asynchronous messaging;
- Experience with PostgreSQL and relational data modeling;
- Experience using AI-assisted development tools such as Claude or GitHub Copilot;
- Upper-intermediate English level.
NICE TO HAVES
- Experience with local-first synchronization engines such as ElectricSQL;
- Experience with mobile local persistence technologies such as SQLite, MMKV, or WatermelonDB;
- Experience with PostgreSQL JSONB or document modeling;
- Experience in the QSR, retail, or other high-volume transactional environments.
PERKS AND BENEFITS
- Professional growth: Mentorship, TechTalks, and personalized growth roadmaps.
- Competitive compensation: USD-based pay with education, fitness, and team activity budgets.
- Exciting projects: Modern solutions with Fortune 500 and top product companies.
- Flextime: Flexible schedule with remote and office options.
Skills Required
- 4+ years of software engineering experience with production distributed-data or synchronization systems
- Strong experience with React Native
- Strong experience with TypeScript
- Strong experience with Node.js
- Hands-on experience with CRDT-based synchronization frameworks (Automerge, Ditto, or comparable)
- Solid understanding of distributed systems fundamentals including conflict resolution, eventual consistency, idempotency, and ordering
- Experience with event-driven architectures and asynchronous messaging
- Experience with PostgreSQL and relational data modeling
- Experience using AI-assisted development tools such as Claude or GitHub Copilot
- Upper-intermediate English level
Am I A Good Fit?
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The Company
What We Do
AgileEngine is a privately held company established in 2010 that builds dedicated teams of designers and developers. We turn good ideas into awesome software that people actually want to use. Some of the biggest names and the hottest startups around the world chose us to build their tech.
