Software Engineer - Level III (Full-Stack)

Arch Capital; Philippines; On-site; PHP 1,800,000 - 3,200,000; Full time

Job summary

Thimble is seeking a Senior Full Stack Engineer to drive architecture and deliver scalable features across React/Angular frontends and Node.js microservices. You will shape technical strategy, collaborate with product, and own end-to-end delivery in a distributed environment.

The role emphasizes event-driven design, data modeling, and strong coding practices with observability and performance in mind.

Qualifications

• 5+ years of professional full stack development and leadership on large-scale platforms.

Responsibilities

• Lead end-to-end system design for high-scale backend platforms.
• Define architectural principles and engineering best practices.
• Balance trade-offs between scalability, performance, cost, and maintainability.
• Design data models that evolve with the product.
• Develop and maintain full stack features across frontend and backend.
• Instrument services with monitoring, alerts, and distributed tracing.
• Collaborate with product, design, and growth teams to drive outcomes.

Skills

Full stack leadership

System design

Data modeling

React/Angular

Node.js

Tools

AWS SNS

AWS SQS

MongoDB

Playwright

Sentry

CloudWatch

CircleCI

Job description

With a company culture rooted in collaboration, expertise and innovation, we aim to promote progress and inspire our clients, employees, investors and communities to achieve their greatest potential. Our work is the catalyst that helps others achieve their goals. In short, We Enable Possibility.

We're looking for a passionate, detail-oriented Senior Full Stack Engineer who is equally comfortable working across the frontend and backend. You'll contribute to both our user-facing React/Angular applications and our Node.js microservices, helping us build, scale, and maintain the systems that power Thimble's platform - including the external-facing APIs our partners rely on.

This role goes beyond feature delivery. You'll help shape the technical strategy of the platform, influence architectural direction, and partner directly with product and growth teams to turn business objectives into engineering outcomes - from improving how customers discover and purchase coverage to scaling the systems behind new products and markets. You thrive in event-driven, distributed architectures and have a strong instinct for writing clean, observable, and resilient code.

WHAT YOU'LL DO

Technical Leadership & Architecture

• Lead end-to-end system design for complex, high-scale backend platforms - owning the full lifecycle from requirements through implementation and iteration
• Define architectural principles and engineering best practices that raise the quality bar across the team
• Make high-impact design decisions involving deliberate trade-offs between scalability, performance, cost, and long-term maintainability
• Design data models that are well-structured, efficient, and built to evolve alongside the product

Full Stack Delivery

• Design, develop, and maintain full stack features across React/Angular frontends and Node.js backend microservices
• Build and evolve RESTful and event-driven APIs - both internal services and external-facing APIs consumed by our partners - ensuring they are well-tested, documented, and production-ready
• Work with MongoDB to design schemas, write efficient queries, and manage data at scale
• Develop and maintain event-driven workflows using AWS SNS and SQS to manage asynchronous system flows reliably
• Instrument services with monitoring and observability tooling - setting up metrics, alerts, dashboards, and distributed tracing to ensure system health
• Investigate and resolve complex bugs and production incidents end-to-end - from the UI down to the service layer

Strategy & Growth

• Partner with product, design, and growth teams on growth initiatives - customer acquisition, activation, and conversion funnel improvements - translating experiment ideas into shippable, measurable features
• Contribute to experimentation and A/B testing efforts, using data and metrics to validate impact and inform the next iteration
• Align technical decisions with business strategy - weighing near-term growth opportunities against long-term platform health, and communicating those trade-offs clearly to stakeholders
• Conduct technical research and propose solutions to new and ambiguous engineering challenges
• Plan and manage your own work independently, breaking down large features into well-scoped tasks and driving them to delivery
• Participate in code reviews, architectural discussions, and contribute to engineering best practices
• Collaborate closely with product managers, designers, and other engineers across the stack

OUR TECH STACK

Frontend: React (Jest), Angular 2+ (Jasmine & Karma), Next.js, Razzle, TypeScript

Backend: Node.js microservices (Koa, NestJS)

Database: MongoDB

Messaging: AWS SNS & SQS (event-driven async flows)

Cloud: AWS

E2E Testing: Playwright

Monitoring: AWS CloudWatch, Sentry

AI Tooling: Claude Code (AI-assisted, agentic development)

CI/CD: CircleCI

WHAT WE'RE LOOKING FOR

• 5+ years of professional full stack development experience, with a track record of leading system design on complex, high-scale platforms
• Proven ability to define architectural principles and drive engineering best practices across a team
• Experience making high-impact design decisions with clear reasoning around trade-offs - scalability vs. cost, performance vs. maintainability, speed vs. reliability
• Strong data modeling skills - designing schemas and structures that are clean, efficient, and built to scale
• Strong proficiency in Node.js - building and maintaining production microservices
• Solid experience with MongoDB - schema design, indexing, aggregation pipelines, and query optimization
• Hands-on experience with event-driven architectures, specifically AWS SNS and SQS or equivalent pub/sub and message queue systems
• Proficiency in React and/or Angular 2+ for building and maintaining modern frontend applications
• Experience with monitoring and observability tools (e.g., CloudWatch, Sentry, or similar) - instrumenting services, creating dashboards, configuring alerts, and using distributed tracing to diagnose issues

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