Senior Software Engineer

About this role

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Skills you'll use

What you'll do

• Build and maintain scalable RESTful APIs and microservices using Python and FastAPI.
• Design and implement async task processing flows using Redis/Celery or equivalent message queue systems (RabbitMQ, SQS, or similar) for agent job execution.
• Own data layer design, covering PostgreSQL schema design, migrations, and query optimization for agent state and audit data.
• Containerize services using Docker and deploy to Kubernetes (AKS) environments.
• Integrate backend services with the agent orchestration engine under the Tech Lead's architectural direction.
• Contribute to API contract design, covering OpenAPI specifications, versioning, and inter-service communication patterns.
• Make frontend code fixes and contribute to Angular UI features when needed, as full stack delivery is expected.
• Lead and actively contribute to low-level design, including component design, data modelling, API contracts, and service internals; expected to articulate and defend design trade-offs during sprint planning, tech reviews, and design sessions.

Who can apply

• Low-Level System Design - Core Expectation
• Proven ability to design individual service components from first principles, including data models, API contracts, internal state management, and inter-service communication patterns.
• Able to reason through and clearly articulate trade-offs between design choices, such as sync vs async processing, SQL vs NoSQL storage, REST vs event-driven communication, and monolith vs microservice boundaries.
• Expected to produce and review low-level design artefacts, class diagrams, sequence diagrams, and data flow descriptions that are precise enough for engineers to implement without ambiguity.
• Backend Engineering - Primary Gate
• 5+ years of backend or full stack software engineering experience.
• Strong Python proficiency with FastAPI or equivalent async REST framework for building production-grade service APIs.
• PostgreSQL at production level, covering schema design, query writing, indexing, and migrations.
• Redis and Celery or equivalent message queue system (RabbitMQ, SQS, or similar) for async task queuing and job state management.
• REST API design experience, including OpenAPI contracts, versioning, and microservice communication patterns.

About Trintech

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