Siva Kasina — Portfolio

Profile

Senior Software Engineer | GenAI & Customer-Facing Solutions

Focused on GenAI Engineer and Forward Deployed Engineer opportunities — combining production software delivery, system design, and hands-on GenAI projects.

Backend & Platforms

core languages & frameworks

Java

Spring Boot

Spring Security

Camunda

REST APIs

Microservices

Data & Messaging

storage, cache & streaming

PostgreSQL

Oracle

Redis

Kafka

Elasticsearch

MongoDB

Couchbase

Cloud & Delivery

where it runs & ships

AWS

GCP

Kubernetes

Docker

Jenkins

Argo CD

Maven

Frontend

client-side frameworks

Angular

Vue.js

React

AI

GenAI & retrieval stack

RAG

Embeddings

Vector Search

Amazon Bedrock

Titan Text Embeddings v2

Llama 3.3

MCP

Featured Projects

Selected work

Personal portfolio project

Meridian Knowledge & Access Agent

A grounded knowledge assistant prototype for a fictional financial organization. It retrieves evidence from internal-style platform and support documents, flags conflicting guidance, and falls back when the corpus does not support an answer.

152 chunks indexed across 4 conflict-evaluation case types

FastAPI
Python
PostgreSQL
pgvector
Amazon Bedrock

View case study GitHub

Production applicationLumen Technologies (formerly CenturyLink)

FLIGHTDECK

Designed, built, and led the development of FLIGHTDECK, a production task-management portal that routes and assigns orders using business rules and gives associates a secure interface to manage work.

Reported: 80% increase in digital-channel revenue, 70% faster task completion

Java
Spring Boot
Spring Security
Angular
Vue.js

View case study

Personal portfolio project

Workflow Incident Investigator

An AI assistant that reads the evidence from a fictional workflow-engine incident (alerts, metrics, logs, deployments, a runbook) and returns an evidence-cited diagnosis with ranked competing hypotheses, stated unknowns, and read-only next steps. It never performs remediation. Built twice — once in Java and once in Python — to compare the two frameworks, with a shared demo UI and a rule-based evaluation.

12 of 12 scenario runs correct across both the Java and Python implementations

Java 21
Spring Boot 4
Spring AI
Python
LangGraph

View case study GitHub

Experience

Where I've worked

Fidelity Investments

Digital Asset Platform / APS Polaris BPM Core — [Official title pending confirmation]

Closed five identified workflow-safety gaps by moving custom-code checks into the designer, catching unsafe code before deployment (exact bypass scope pending confirmation).
Led Java/Spring Boot service upgrades and replacement of deprecated components in a live platform (exact versions and scope pending confirmation).
Led a Datadog-to-OpenTelemetry migration to reduce coupling to vendor-specific telemetry (scope across logs, metrics, and traces pending confirmation).
Resolved a large Camunda job backlog — tuning executor/queue limits and introducing backpressure guidance for high-volume asynchronous process starts (cited scale: roughly 500,000 process instances and 40 million jobs over about a month, pending verification).

Java
Spring Boot
Camunda
Spring Security
Redis
Kubernetes
Datadog
OpenTelemetry

Client/platform details kept generic — no proprietary architecture, credentials, customer data, internal URLs, or sensitive incident data is disclosed.

Credit Card Transaction Processing

Capital One

Senior Software Engineer · Jan 2024 – Apr 2024

Contributed to Java and Spring Boot microservices for a credit-card transaction-processing project.
Implemented application-level changes in REST services and Oracle-backed batch workloads.
Worked within the project's AWS-hosted environment and existing architecture, with a focus on reliable service behavior and data processing.

Java
Spring Boot
Microservices
AWS
Oracle
Batch Processing
REST APIs
Maven
Jenkins
Git
Docker
Kubernetes
Prometheus

Development-level contribution within the project architecture; not platform-wide ownership. Project flow, responsibilities, and outcomes are not yet fully recalled, so detail is kept modest here.

FLIGHTDECK

Lumen Technologies

Lead Backend Developer · Sep 2022 – Dec 2023

Led development of FLIGHTDECK, Lumen's flagship production task-management portal and primary interface to the WORKMATE task store.
Owned application design and delivery across Java/Spring Boot services and Angular/Vue.js frontend work, including rule-based order routing, task actions, and secure access.
Brought together Status Manager, Task Actions, Dashboard, Advanced Search, Application Configuration, and Routing microservices, evaluating incoming orders against business rules for automatic or manual routing.
Maintained the application in production, resolved issues, and coordinated delivery through planning, grooming, and cross-team work.

Java
Spring Boot
Angular
Vue.js
Kafka
OpenFeign
Hystrix
Zipkin
Elasticsearch
Oracle
Couchbase
Kubernetes
GCP/GKE
Argo CD

Reported program outcomes: 80% growth in digital-channel revenue and 70% reduction in task completion time — measurement period and attribution pending confirmation before stating more definitively.

Credit Promotions

Citi

Senior Software Developer · Aug 2021 – Aug 2022

Developed Java 8 and Spring Boot services for a credit-promotions application, focusing on REST APIs and backend processing.
Integrated service flows with Camunda workflows and used asynchronous and concurrent processing for responsive request handling.
Contributed to DevOps migration, automated testing, AWS deployment, and Prometheus/Grafana monitoring as part of the application team.

Java 8
Spring Boot
REST
Microservices
Camunda
JBoss EAP/Fuse
AWS EC2
DynamoDB
CloudFront
Prometheus
Grafana
React/Redux
Elasticsearch
MongoDB
Bamboo
JUnit
Mockito
PowerMock
Selenium
ISO 8583

CenturyLink (now Lumen)

Full-Stack Development · Dec 2018 – Jul 2021

Joined an enterprise application while it was in active development and contributed to shaping its design.
Built features across the frontend and backend, working through requirements into application changes.
Handled production issues and ongoing maintenance as the application moved into use (exact application name and project-specific stack pending confirmation).

New York State of Health

MAXIMUS

Software Engineer · Feb 2018 – Nov 2018

Built customer-service features for the New York State of Health healthcare data-integration platform.
Implemented Java/Spring REST services and responsive AngularJS/Angular 2 interfaces based on system requirements.
Worked with Azure services, SQL/PL-SQL, and automated build and test pipelines.
Contributed to production monitoring and change-management activities.

Java
JSF
Spring
REST
AngularJS
Angular 2
Azure App Service
Azure Cosmos DB
Azure DevOps
SQL/PLSQL
Maven
Jenkins
JUnit
Mockito
WSDL

Prithvi Solutions

Java Developer · Jan 2015 – Dec 2015

Contributed across requirements analysis, UML design, Java development, and testing for enterprise applications.
Built REST and SOAP services using Spring MVC/Web Services, Hibernate/JPA, and Apache CXF.
Developed web and batch components with Struts and Spring Batch, and used jQuery/JSON for UI interactions.
Performed performance testing of Apache and Tomcat management services.

Java
Spring Core/MVC/Web Services
Hibernate
JPA/JTA
Spring Batch
Struts
REST
SOAP
Apache CXF
WSDL
Axis
JAX-RS
jQuery
JSON
Maven
Apache/Tomcat

Contact

Let's talk

I'm a senior software engineer with a track record of owning production systems end to end — design, implementation, and long-term reliability — across financial services, healthcare, and telecom platforms. I'm now directing that same depth toward GenAI engineering and forward-deployed, customer-facing problem solving.

LinkedIn GitHub