Senior Software Engineer-AIAgent Engineer & Tester

Position Description:

Founded in 1976 CGI is among the largest independent IT and business consulting services firms in the world. With 94000 consultants and professionals across the globe CGI delivers an end-to-end portfolio of capabilities from strategic IT and business consulting to systems integration managed IT and business process services and intellectual property solutions. CGI works with clients through a local relationship model complemented by a global delivery network that helps clients digitally transform their organizations and accelerate results. CGI Fiscal 2024 reported revenue is CA$14.68 billion and CGI shares are listed on the TSX (GIB.A) and the NYSE (GIB). Learn more at .
Position: Senior Software Engineer/SSE
Experience: 5- 9 Years
Category: Software Development/ Engineering
Work Mode: Work from office
Shift Timings: 1:00 pm to 10:00 pm
Main location: India Karnataka Bangalore
Position ID: J0925-0264
Employment Type: Full Time
Education Qualification: BE / B. Tech / MCA / BCA
#LI-SK38

Your future duties and responsibilities:

Responsibilities
Agent ImplementationImplements LangGraph agent nodes and graphs to architectural design specified by APEX Lead. Builds and wires routing logic. No node ships without a unit test; no graph ships without an integration test.
Agent Testing - Unit LevelEvery LangGraph node tested in isolation with mocked state. Input/output contracts verified independently of the full graph. Non-deterministic behavior is controlled via mocked LLM outputs or seeded inputs - flaky tests are not acceptable.
Agent Testing - Graph LevelFull end-to-end agent runs with controlled inputs routing decisions state transitions output fidelity and failure modes all covered.
Agent Regression SuiteResponsible for the regression harness so prompt changes model version bumps or node refactors dont silently degrade behavior. Tied into Azure DevOps CI so every PR runs the suite. Responsible for suite health - flaky skipped or stale tests are actively managed.
Bug Fixing OwnershipWhen an agent bug is reported Responsible for the full cycle: reproduce isolate fix write the regression test that would have caught it ship. No fix is complete without a corresponding test added to the regression suite.
Playwright E2E CoverageResponsible for the Playwright test suite across the entire GUI frontend. APEX Lead will specify which user flows must be covered; This role builds maintains and actively tracks coverage gaps. Wired into the Azure DevOps pipeline on every PR.
Adversarial Agent TestingPrompt injection cross-submission data leakage role-boundary violations malformed intake inputs. Dedicated adversarial suite calibrated to bank-grade governance platform requirements.
Prompt Versioning and ManagementStructured approach to prompt storage change review and rollback - a lightweight prompt registry tied to regression test runs so prompt changes are treated with the same discipline as code changes.
Production Agent ObservabilityLangSmith tracing or equivalent - node-level latency routing decision logs token usage and failure instrumentation in production.
Document Intelligence Agent LayerWhenapex-documentslands responsible for the AI extraction pipeline - structured field extraction from uploaded documents - coordinating the interface contract with backend service. Full test coverage from initial implementation.
Model Version and Cost ManagementVertex AI model pinning token usage baselines per workflow cost-per-request tracking. Surfaces these metrics on every regression run so model upgrades dont introduce silent cost or quality regressions.
GCP Infrastructure and TerraformCloud Run Cloud SQL IAP Hashicorp Vault - responsible for infra changes to the Terraform module structure. APEX Lead will review and approve; This role will execute and maintain.

Required qualifications to be successful in this role:

Focus:LangGraph Vertex AI Agent testing Observability

Must Have

. LangGraph / LangChain
. Python pytest pytest-asyncio
. Agent unit testing - every node tested in isolation with mocked state before it ships
. Agent graph testing - full end-to-end graph runs with controlled inputs
. LLM mocking strategies unit test mock fake model stubs or framework-level mocking; non-determinism must be controlled
. Flaky test management - controlled seeds mocked outputs or threshold-based assertions for non-deterministic agent behavior
. Regression test authorship - every bug fixed gets a regression test before the fix is considered done
. Playwright E2E testing - responsible for test coverage not just test authorship; actively tracks and closes flow gaps
. Test coverage reporting
. Structured output / JSON schema validation
. Production agent observability
. Regression suite design
. Application Development and Support Experience in Cloud (any cloud is fine)

Nice to Have

. LangSmith / RAGAS
. Prompt versioning
. Adversarial / red-team testing
. Token cost instrumentation
. Document extraction / OCR pipelines
. Financial services / regulated industry

Nice to Have - Platform / DevOps

. GCP Cloud Run
. Terraform
. Azure DevOps pipelines

Skills:

• Agentic AI
• LangChain
• LangGraph
• Observability
• Python

What you can expect from us:

Together as owners lets turn meaningful insights into action.

Life at CGI is rooted in ownership teamwork respect and belonging. Here youll reach your full potential because

You are invited to be an owner from day 1 as we work together to bring our Dream to life. Thats why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our companys strategy and direction.

Your work creates value. Youll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas embrace new opportunities and benefit from expansive industry and technology expertise.

Youll shape your career by joining a company built to grow and last. Youll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

Come join our teamone of the largest IT and business consulting services firms in the world.