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Backend Engineer

A5 SYNC

Role overview

Qualifications

  • 2+ years of professional experience with JavaScript/TypeScript (TypeScript strongly preferred)
  • Strong experience with Node.js and Express
  • Solid experience with PostgreSQL and ORM (TypeORM preferred)
  • Experience with Redis and job queues such as BullMQ (or Bull / equivalent)

Responsibilities

  • Design and implement RESTful APIs
  • Model data and write production-safe migrations using PostgreSQL and TypeORM
  • Build and operate background jobs and workers using Redis and BullMQ
  • Integrate third-party services and APIs, and webhooks

Key facts

Hard skills

Other skills

  • Collaboration

About the company

A5 SYNC logo

A5 SYNC

Computer Software / SaaS

A5 SYNC is the all-in-one procurement cloud built for IT resellers, VARs, and MSPs. We unify quoting, deal registration, distributor integrations, and payments into a single platform — eliminating the inefficiencies of spreadsheets, emails, and siloed portals. Unlike legacy CPQ tools or distributor marketplaces, A5 SYNC combines software + hardware distribution so our partners get the best pricing, faster fulfillment, and a frictionless experience from quote to delivery. Our mission is simple: empower every reseller to compete like the giants (CDW, SHI, Insight, Zones) by giving them modern tools and direct access to hardware. With A5 SYNC, resellers gain: - Automated quoting & procurement across Ingram Micro, TD SYNNEX, D&H, and more - Deal registration & rebate workflows built directly into the platform - Unified storefronts to sell online under their own brand - Seamless payments & AR management - Exclusive bundles & warranties through our Cloud Care program We’re building the category leader in IT reseller procurement — a platform where growth, margin, and automation sync together.

Company details

Company typeStartup
IndustryComputer Software / SaaS
Company size11 - 50

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Job description

This is a remote position.

We are looking for a Backend Engineer (2+ years' experience) with strong TypeScript and Node.js experience designing, building, and maintaining scalable server-side applications for our multi-tenant B2B commerce platform. You will work primarily with Express, PostgreSQL (TypeORM), Redis, and BullMQ workers, and collaborate closely with front-end developers and QA to deliver REST APIs, background jobs, and third-party integrations. 

  • Design and implement RESTful APIs. 
  • Model data and write production-safe migrations using PostgreSQL and TypeORM. 
  • Build and operate background jobs and workers using Redis and BullMQ. 
  • Integrate third-party services and APIs, and webhooks. 
  • Optimize applications for performance, reliability, and operational safety. 
  • Troubleshoot and debug production issues across APIs, queues, and the database. 
  • Participate in code reviews and contribute to backend best practices. 
  • Document API behavior, technical designs, and specifications. 
  • Collaborate with cross-functional teams to scope and implement new features. 
  • Take full responsibility for the features you ship and follow through when something needs attention 


Requirements

  • 2+ years of professional experience with JavaScript/TypeScript (TypeScript strongly preferred). 
  • Strong experience with Node.js and Express. 
  • Solid experience with PostgreSQL and ORM (TypeORM preferred). 
  • Experience writing and reviewing database migrations for production systems. 
  • Experience with Redis and job queues such as BullMQ (or Bull / equivalent). 
  • Understanding of authentication, authorization, and security best practices  (JWT, cookies/sessions, RBAC/permissions). 
  • Comfortable working within large, existing codebases and debugging production issues. 
  • Experience with version control systems like Git and collaborative code review 
Preferred Skills
  • Experience with multi-tenant SaaS, e-commerce, marketplace, or payments systems. 
  • Experience with dependency injection patterns (tsyringe, Inversify, or similar) - NestJS experience is a plus 
  • Understanding of SOLID design principles, particularly interface-driven design and dependency inversion. 
  • Familiarity with Docker and containerization. 
  • Knowledge of CI/CD pipelines. 
  • Experience with cloud platforms/infrastructure (AWS, DigitalOcean, or Cloudflare). 
  • Exposure testing frameworks like Jest. 
  • Experience with observability tools such as Sentry and structured logging. 


Benefits

COMPENSATION & PERKS
  • Competitive salary based on experience.
  • Festival Bonus: Standard 1-month Dashain/Tihar festival bonus.
  • Time Off: Generous Paid Time Off (PTO) and standard Nepali public holidays.
  • Health and accidental insurance coverage
  • Flexibility: 100% Remote work from anywhere in Nepal (bring your own device/provided based on team placement).


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MR

Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
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