Available for contract engagements
BitsAarambh is the contracting practice of a senior software engineer specialising in Java/Spring Boot backends, cloud & DevOps, and full-stack delivery. I help teams build systems that scale and last.
Java 21 / Spring Boot services, Apache Camel integrations, and secure REST APIs built for banking-grade reliability.
Event-driven AWS integrations with Lambda, API Gateway, Step Functions, EventBridge, SNS/SQS, and CDK — connecting systems end to end.
Monolith-to-microservices migration and orchestration with Nomad, Podman, Consul, Puppet, Docker, and Kubernetes.
A lending application that ingests, generates, and processes fixed-length and dynamic-length files exchanged with core banking systems, with secure SFTP transfers and end-to-end Apache Camel integration flows.
A serverless integration platform connecting HubSpot with AWS APN for bidirectional data flow, built entirely on AWS infrastructure with event-driven workflows and secure configuration management.
Loan facilities, card management, and payment features for web and mobile banking channels, built on Backbase and integrated with core-banking APIs behind secure access controls.
How I use Apache Camel and Bindy to parse the fixed-length and variable-length files banks still exchange — PLSTRECS, GL, ACH/NACHA and friends — without drowning in substring() calls.
The operational patterns that keep a file-based integration from double-processing or silently losing data — idempotent consumers, redelivery policies, and dead-letter channels in Apache Camel.
A practical pattern for making payment endpoints safe to retry — idempotency keys, a dedupe store, and the edge cases that bite you in production.
Tell me what you're building and where you're stuck. I reply to every serious enquiry.
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