Senior Software Developer (Java/Kotlin)

S.i. Systems

Toronto, ON

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Our Tier 1 Banking Client is seeking a seasoned Java/Kotlin Developer to develop backend services.

Responsibilities:

Key requirements:

Languages & Frameworks: Java/Kotlin (JVM): strong, SQL: strong, Python: medium (backend services, strong for JDO0 data pipelines)
Data Engineering & Pipelines: ETL design, stream processing (Kafka or SQS), scheduled jobs/cron services, data normalization, deduplication strategies, batching, idempotency, data validation, schema evolution.
Search & Indexing: OpenSearch / Elasticsearch: index design, analyzers, mappings, query performance tuning, reindexing strategies, bulk indexing, zero-downtime reindex.
Datastores: PostgreSQL: schema design, query optimization, indexing; Redis or in-memory caches; S3 for object storage.
Cloud & Infra: AWS (EC2, ECS/EKS, Lambda, S3, RDS, IAM), Terraform for infra as code, containerization with Docker, Kubernetes basics.

This role is hybrid - x3/week required on-site

Disclaimer:
AI may be used in evaluating candidates.
This posting is for an existing vacancy.

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Level of education

undetermined

Work experience (years)

undetermined

Written languages

undetermined

Spoken languages

undetermined

Internal reference No.

150205

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