Senior Software Engineer, Platform

Sourceo; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Firmus Technologies is seeking a Senior Software Engineer focused on Platform Engineering to join our Engineering and Technology team. You will drive observability capabilities and enhance internal tooling to improve developer and operations productivity.

This role suits a self-starter who builds from first principles and delivers elegant solutions. You will collaborate with AI/ML engineers, develop monitoring and exportors, and contribute to platform automation and testing.

Qualifications

• Bachelor's degree in computer science or a related technical field.
• 7+ years as Software Engineer with at least 3 years in Platform/Observability.
• Strong proficiency across modern frameworks, languages and observability tools.

Responsibilities

• Drive development of AI/ML application-level monitoring from the ground up.
• Develop Prometheus exporters for low-level component and fabric monitoring.
• Build internal tooling and dashboards to automate workflows and boost productivity.
• Improve automated test coverage and adopt new testing frameworks.
• Own net-new product experiments from concept to production deployment.
• Contribute to AI-augmented development tool adoption and workflows.

Skills

Go

Python

Node.js

SQL

PromQL

LogQL

GraphQL

Loki

Grafana

Prometheus

Kafka

Pulsar

Pytest

JUnit

K6

Cypress

AWS

Azure

GCP

Docker

CI/CD

Ansible

GitHub Actions

Jenkins

ArgoCD

English

Education

Bachelor's degree in Computer Science

Tools

Docker

Job description

Firmus Technologies is a global leader pioneering the development and operation of efficient AI infrastructure across Asia Pacific.

Founded in Australia in 2019, our mission is to create the most efficient AI infrastructure by combining cutting-edge technology with a steadfast commitment to sustainability.

At Firmus, we are unique in our approach. We design, build, and operate a new class of digital infrastructure – the AI Factory. Through our model-to-grid technology approach, we have pushed the boundaries of multi-generational liquid cooling systems, energy management, AI software orchestration, and construction. For our customers, this approach allows us to make every watt count and deliver low-cost AI tokens globally.

Firmus AI Cloud

Our large-scale GPU cloud platform, Firmus AI Cloud, is purpose-built to deliver energy-efficient AI compute at scale to customers.

It empowers developers, enterprises, educational institutions, and government users to train and deploy AI models with unmatched efficiency and cost savings. With an ever-growing suite of services and applications, we are committed to delivering a cloud experience that is market-leading, proprietary, and built to scale.

ROLE SUMMARY

Firmus Technologies is seeking a Senior Software Engineer focussing on Platform Engineering to join our Engineering and Technology team. You will drive the enhancement of our observability capabilities and enhance internal tooling to improve developer and operations productivity. This role is ideal for a self-starter with passion for building things from first principles. You naturally break down complex problems into their fundamental truths to uncover novel and elegant solutions—rather than relying on conventional patterns.

KEY RESPONSIBILITIES

• Drive and collaborate with AI/ML engineers to develop and integrate AI/ML application-level monitoring from the ground up, including model accuracy tracking and performance observability.
• Develop purpose-built Prometheus exporters to provide necessary granularity for robust low-level components and interconnect fabric monitoring.
• Build and enhance internal tooling to automate workflows, improve developer and operations productivity, and streamline platform operations (e.g., dashboards, CLI tools, automation scripts, self-service portals).
• Continuously improve automated test coverage and effectiveness by adopting new testing frameworks, tools, and best practices.
• Own net-new product experiments (e.g., VR with Meta Quest), driving innovation from concept to production deployment and mass adoption.
• Contribute to the adoption and integration of AI-augmented development tools and workflows.

SKILLS AND EXPERIENCE

• Bachelor's degree in computer science or a related technical field.
• 7+ years of experience as Software Engineer, with a minimum of 3 years in a dedicated Platform/Observability engineering focus role.
• Demonstrated strong proficiency on the following areas:

Modern application development frameworks and languages (e.g., Go, Python, Node.js).

• Advanced querying and optimization using SQL, PromQL, LogQL, GraphQL.
• Observability stack (e.g., Loki, Grafana, Tempo, Prometheus, Thanos, ClickHouse).
• Data streaming (e.g., Kafka, Pulsar).
• Automated unit, integration, security, load and end-to-end testing frameworks (e.g., Pytest, JUnit, K6, Go test, Cypress) and integrating tests into CI/CD pipelines.
• Cloud platforms (e.g., AWS, Azure, or GCP).
• Containerization technologies (e.g., Docker).
• Experience with AI-augmented development tools and workflows.
• Working knowledge on configuration management and CI/CD (e.g., Ansible, GitHub Actions, Jenkins, ArgoCD)

Clear and effective English communication, written and spoken.

Bonus Points

• Familiarity with Linux internals, networking stacks, distributed storage and high-performance computing.
• Experience in high-growth startups or regulated industries with robust security and data privacy requirements, including SOC 2 Type 2 and ISO 27001.

Location & Reporting

• Report to: Senior Manager, Platform Engineering

Employment Basis

Full-time

Diversity

At Firmus, we are committed to building a diverse and inclusive workplace. We encourage applications from candidates of all backgrounds who are passionate about creating a more sustainable future through innovative engineering solutions.