Senior Software Developer***

Ethos Search Associates Pte Ltd; Singapore; On-site; SGD 90,000 - 120,000; Full time

Job summary

Ethos Search Associates Pte. Ltd. is seeking a software engineer for a 1-year contract based in One North, Singapore.

You will implement backend feature modules, create REST API endpoints, manage data migrations, and contribute to infrastructure-as-code and CI/CD pipelines. Ideal candidates have 5+ years building production software, strong Python web framework experience, REST API design, and a proven track record with automated tests.

Qualifications

• At least 5 years building and maintaining production software.
• Production experience with Python and web frameworks.
• Experience designing and building REST APIs (authentication, authorisation and error handling).
• Experience writing and deploying database schema migrations for live production systems.
• Experience in authoring infrastructure-as-code from scratch (AWS CDK, Terraform, CloudFormation or equivalent).
• Experience with commercial cloud.
• Experience working within a branching and pull request workflow.
• Experience in reviewing others' code.
• Current and frequent writing of automated tests.
• Able to build or maintain automated CI/CD pipelines.
• Accustomed to AI-assisted development tooling as part of a normal workflow.
• Strong written technical English for documentation.

Responsibilities

• Backend feature modules implemented per specifications and acceptance criteria.
• Create REST API endpoints with validation, authorization, and error handling.
• Modify data models and write migrations for live deployments.
• Author and maintain infrastructure-as-code.
• Develop unit and integration tests.
• Review code as author and reviewer.
• Produce technical docs and runbooks.
• Contribute to frontend tasks when needed.
• Provide daily technical guidance and code-review feedback.

Skills

Python

REST APIs

CI/CD

IaC

Cloud

Code Review

Automated Tests

Tests Automation

Tools

AWS CDK

Terraform

CloudFormation

Job description

This will be a 1-year contract position based in One North.

Responsibilities include:

• backend feature modules implementation based on written specifications and acceptance criteria
• creation of REST API endpoints (validation, authorisation, and error handling)
• data model changes and write database migrations for live system deployment
• infrastructure-as-code authoring and maintenance
• unit and integration tests creation
• code review, both as author and reviewer
• technical documentation and operational runbooks
• frontend work where required
• day-to-day technical guidance and code review feedback to junior developers

Requirements:

• At least 5 years building and maintaining production software/applications and services with real users and regular release cycles
• Production experience with Python, building applications using a web framework
• Experience designing and building REST APIs (authentication, authorisation and error handling)
• Experience writing and deploying database schema migrations for live production systems
• Experience in authoring infrastructure-as-code from scratch (AWS CDK, Terraform, CloudFormation or equivalent)
• Experience with commercial cloud
• Experience working within a branching and pull request workflow
• Experience in reviewing others' code
• Current and frequent writing of automated tests
• Able to build or maintain automated CI/CD pipelines
• Accustomed to AI-assisted development tooling as part of a normal workflow
• Strong written technical English for documentation

Advantageous to have:

• Familiarity with data cataloguing, metadata management or data governance tooling
• Experience in workflow orchestration experience
• Hands-on frontend development with a modern JavaScript framework
• Delivery experience within a public sector environment
• Cloud certification(s)

Ethos Search Associates Pte. Ltd.

EA License No: 13C6655

EA Reg No: R1988580 Jacky Chong