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Commonwealth Bank of Australia

Principal Software Engineer

Commonwealth Bank of Australia is hiring a Principal Software Engineer in Bengaluru, India. Level rates it ; you can apply on Commonwealth Bank of Australia.

Level's read on this job

  • Level rates this software engineer role Little AI ●○○○: aI is not part of the work.
  • Tools and skills the posting cites include APIs, RAG and AI agents.
  • Level classifies it as a lead role.
  • Level lists 211 other open roles at Commonwealth Bank of Australia.

AI in this role

Lead the design and delivery of scalable platforms supporting customer experiences and AI-enabled capabilities at CommBank.

APIs
ragai-agentsai-evaluationai-safetysoftware-engineeringtechnical-leadershipclouddevsecopsci-cd

Organization:

At CommBank, we never lose sight of the role we play in other people’s financial wellbeing. Our focus is to help people and businesses move forward to progress. To make the right financial decisions and achieve their dreams, targets, and aspirations. Regardless of where you work within our organisation, your initiative, talent, ideas, and energy all contribute to the impact that we can make with our work. Together we can achieve great things.

Job Title: Principal Software Engineer

Location: Bangalore

Business & Team:

Business Banking Technology executes the Technology Strategy across Business Banking through world-leading application of technology and operations. We partner closely with the business to solve real-world problems using data and AI-driven insights, resilient platforms and modern engineering practices, delivering customer value at speed and scale.

You'll provide technical leadership across a domain responsible for:

  • CRM and customer engagement platforms

  • Banker experience and workbench capabilities

  • Workflow and orchestration services

  • AI-assisted customer and colleague experiences

  • Shared platform services supporting Business Banking journeys

Working closely with engineers, architects, product leaders, delivery teams and business stakeholders, you'll help shape platform strategy while lifting engineering capability across the organisation.

Impact & Contribution:

Apply advanced technical knowledge to deliver key strategic solutions which addresses business problems.

You will contribute to building a brighter future for our customers by ensuring that our team builds the best solutions possible using modern development practices that ensure both functional and non-functional needs are met.

If you have a history of building a culture of empowerment and know what it takes to be a force multiplier within a large organization, then you’re the kind of person we are looking for.

Roles & Responsibilities:

  • Lead the design, evolution and delivery of scalable, resilient platforms supporting customer and banker experiences.

  • Drive architecture and engineering decisions across multiple squads and technology domains.

  • Establish reusable engineering patterns, frameworks and standards that improve delivery speed and quality.

  • Shape platform strategy across cloud, APIs, customer engagement services, workflow orchestration and AI-enabled capabilities.

  • Champion modern engineering practices including DevSecOps, observability, CI/CD and automated testing.

  • Partner with product, architecture, risk and business stakeholders to deliver meaningful customer and business outcomes.

  • Ensure security, privacy, operational resilience and responsible AI principles are embedded into platform design and delivery.

  • Mentor engineers, influence technical strategy and foster a culture of engineering excellence.

We're interested in hearing from people who have

  • Experience operating as a Principal Engineer, Lead Engineer or senior technical leader within complex enterprise environments.

  • A strong track record designing and delivering large-scale distributed systems and platform capabilities.

  • Strong engineering judgement with the ability to balance strategic thinking and hands-on technical leadership.

  • Experience leading architecture decisions across cloud-native, API-driven or customer-facing platforms.

  • The ability to influence senior stakeholders across engineering, product, architecture, risk and business teams.

  • Experience establishing engineering standards, reusable patterns and platform strategies across multiple teams.

  • Strong mentoring and coaching capability, with a passion for growing engineering talent.

  • Curiosity and enthusiasm for AI-enabled customer experiences, automation and modern digital platforms.

Essential Skills:

  • Minimum exp of 15+ yrs extensive experience in designing and implementing scalable, maintainable and reliable software solutions

Engineering & Architecture

  • Python, Java, .NET, TypeScript, Go or similar modern software development languages

  • Designing and building APIs, services and distributed systems

  • Microservices and event-driven architectures.

  • Strong experience in front end technologies like React JS or Next JS.

  • Modern application design patterns including Domain-Driven Design (DDD)

  • Experience working across backend, frontend and integration capabilities

  • Safe and effective use of AI-powered engineering tools to improve development productivity and quality

Data Engineering

  • Architect enterprise data pipelines using Python and Apache Airflow.

  • Lead implementation of scalable ETL/ELT frameworks.

  • Design robust batch and streaming data processing solutions.

  • Define data quality, lineage, observability, and governance standards.

  • Establish reusable engineering accelerators and platform capabilities.

  • Design domain-oriented service architectures aligned with banking capabilities.

  • Define service boundaries and ownership models across business domains.

AI, Data & Intelligent Experiences

Highly regarded:

  • AI-enabled applications and customer experiences with Large Language Models (LLMs), AI agent architectures and Retrieval-Augmented Generation (RAG)

  • Responsible AI controls and governance

  • Model evaluation, monitoring and operationalisation

Cloud & Platform Engineering

  • Strong working experience with AWS, Kubernetes, Docker

  • Infrastructure as Code (Terraform or CloudFormation)

  • CI/CD and deployment automation

  • Cloud-native architecture patterns

Engineering Excellence

  • DevSecOps and secure-by-design engineering

  • Automated testing and quality engineering

  • Observability, monitoring and operational resilience

  • Production platform ownership

  • Incident management and reliability engineering

  • Agile delivery practices

Education Qualification: Bachelor’s degree or Master’s degree in Engineering in Computer Science/Information Technology

If you're already part of the Commonwealth Bank Group (including Bankwest, x15ventures), you'll need to apply through Sidekick to submit a valid application. We’re keen to support you with the next step in your career.

We're aware of some accessibility issues on this site, particularly for screen reader users. We want to make finding your dream job as easy as possible, so if you require additional support please contact HR Direct on 1800 989 696.

Advertising End Date: 29/11/2026

How we rate this

Principal Software Engineer at Commonwealth Bank of Australia rates 30 out of 100 for how much of the daily work is AI. That makes it Little AI (AI Level 1 of 4). The level is about AI in the job, not seniority.

Classification

Little AI. AI is not part of the work.

  1. ●●●● Builds AI80 to 100
  2. ●●●○ Works on AI60 to 79
  3. ●●○○ Uses AI40 to 59
  4. ●○○○ Little AI0 to 39

Levels come from how often the tools, models and workflows of the role are named in the posting itself. Read the description and count the AI tools, models and workflows it names.

Prepare for this job

Built from this posting and from similar jobs on Level.

Skills and AI tools this role asks for

RAGAI agentsAI EvaluationAI SafetySoftware EngineeringTechnical LeadershipCloudDevsecops

Also common in software engineer jobs at this level

Pay

Typical software engineer job
$167k

This posting doesn't list pay. Use the typical software engineer figure when pay comes up. See software engineer jobs

Questions you could be asked

  1. How would you design a retrieval step so the model answers from real data instead of guessing?
  2. How do you decide when an AI agent can act on its own versus asking for approval first?
  3. How do you decide that one model's output is better than another's for a given task?
  4. How do you think about the risk of an AI system in this kind of role failing silently?
  5. Tell me about a project where software engineering was part of your work. What did you do?

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  • List these exact terms on your resume: RAG, AI agents, AI Evaluation, AI Safety, and Software Engineering. An applicant tracking system matches the wording, not the idea.
  • Attach one line of real, concrete experience to at least one of them. A tool named with nothing behind it rarely survives a human read.

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