Senior Software Engineer (App Integration)

Makro PRO

Bangkok, Bangkok, Thailand Hybrid permanent

Posted: April 3, 2026

Quick Summary

We are building a new marketplace platform to modernize how we process orders across multiple sale channels. As Senior Software Engineer, you will lead a dedicated build team through the initial delivery and then evolve into leading two permanent squads as the team converges with the existing marketplace team. The role requires expertise in software engineering and integration, with a focus on building a greenfield platform.

Job Description

We are building a new marketplace platform to modernize how we process orders across multiple sale channels. The platform replaces a legacy monolithic system with purpose-built services for channel integration and order fulfillment.

As the Senior Software Engineeer, you will own the technical direction and delivery of this platform from day one. You will lead a dedicated build team through the initial delivery, then evolve into leading two permanent squads as the team converges with the existing marketplace team.

This is a dual-track role: you will drive a greenfield platform build while maintaining oversight of a legacy system during a parallel migration period. You will also pioneer AI-native development practices, using AI pair programming as a core part of the team’s workflow.

What You'll Do

Technical Leadership

• Design and review event-driven distributed systems across platform services
• Define API contracts, messaging topology (SNS/SQS), and database schemas (PostgreSQL)
• Establish architecture patterns: adapter-based channel integration, state machine-driven fulfillment workflows, DLQ handling
• Evaluate and review AI-generated code critically — ensuring quality, security, and maintainability
• Own technical decision-making for the platform, balancing speed with long-term maintainability

Delivery & Process

• Lead end-to-end platform delivery from design through production go-live
• Run tight sprint cadences with clear goals and retrospectives
• Establish code review standards, CI/CD pipelines, and deployment practices
• Set up on-call rotations, incident response processes, and runbook documentation
• Coordinate knowledge transfer from the existing team during the build phase

People & Growth

• Build and lead the new platform team from onboarding through production delivery
• After go-live, lead the convergence of the new and existing teams into two purpose-built squads
• Mentor existing .NET developers transitioning to the TypeScript stack
• Span both squads long-term, providing architectural oversight across the domain

Requirements:
Must Have

• 6+ years of backend engineering experience, with 2+ years in a tech lead or senior architect role
• Strong proficiency in TypeScript and Node.js
• Deep experience with event-driven architectures: message queues (SQS, SNS, Kafka), async workflows, idempotency patterns
• Production experience with AWS services: EKS/Kubernetes, Aurora/RDS (PostgreSQL), ElastiCache (Redis), SQS/SNS
• Experience designing and operating distributed systems with proper observability (structured logging, distributed tracing, dashboards)
• Proven ability to run agile delivery: sprint planning, backlog management, retrospectives
• Strong code review culture — can review PRs for correctness, security, and design quality

Nice to Have

• Familiarity with .NET 6 / .NET Framework (for legacy oversight during migration)
• Experience with AI pair programming tools (Copilot, Claude, Cursor) and AI-native development workflows
• Experience migrating systems from monolith to microservices
• Contract testing experience (Pact or similar)
• Experience integrating with third-party marketplace APIs (e.g., Shopee, Lazada, Grab, or similar)

Tech Stack

• Backend - TypeScript, Node.js
• Database - PostgreSQL (Aurora), Redis (ElastiCache)
• Messaging - Amazon SQS, SNS, with DLQ patterns
• Infrastructure - AWS EKS (Kubernetes), Terraform, GitHub Actions CI/CD
• Observability - Datadog (tracing, logging, dashboards, alerting)
• Frontend (Packing UI) - React, Vite, TypeScript
• Legacy (oversight) - .NET 6, .NET Framework 4.7.2, SQL Server, MongoDB

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