Sajjad Wasti

Software Engineer

Bengaluru, Karnataka, India3 yrs 10 mos experience

Highly StableAI ML Practitioner

Key Highlights

Expert in Java and Spring Boot for backend development.
Led successful migrations and API security enhancements.
Integrated Generative AI features into backend systems.

Stackforce AI infers this person is a Backend Software Engineer specializing in Supply Chain and Logistics systems.

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Skills

Core Skills

Java DevelopmentSpring BootApache KafkaApi SecurityObservabilityPythonGenerative AiTestingApi TestingJavaUipathRasa

Other Skills

REST APIsSplunkAutomationLangChainLangGraphLangSmithFlaskAgentic AI DevelopmentOptimizationWorkflow AutomationProject ManagementMachine LearningCore JavaProcess AutomationData Structures

About

I’m a Backend Software Engineer with 3.5 years of experience building reliable, production-grade systems using Java and Spring Boot in enterprise environments. My work focuses on designing and operating scalable microservices, REST APIs, and distributed backend systems with strong emphasis on performance, reliability, and operational excellence. At Cisco, I’ve worked on business-critical platforms in the supply chain and logistics domain, contributing to backend service design, system migrations, observability, and security hardening. I’m comfortable owning backend services end-to-end—from development and testing to production support and continuous improvement. In addition to core backend engineering, I have hands-on experience integrating Generative AI–based features into backend platforms as an extension to existing systems. I enjoy solving complex engineering problems, improving legacy systems, and working in product-driven teams that value clean design and real-world impact.

Experience

3 yrs 10 mos

Total Experience

3 yrs 10 mos

Average Tenure

3 yrs 10 mos

Current Experience

Cisco

3 roles

Software Engineer II

Promoted

Nov 2023 – Present · 2 yrs 7 mos · Bengaluru, Karnataka, India

Designed and developed Java backend services using Spring Boot, building scalable REST APIs for enterprise Supply Chain and Logistics workflows supporting B2B integrations.
Led the migration of legacy Spring Boot services from 2.x to 3.x, upgrading dependencies and refactoring code to align with newer framework standards and improve long-term maintainability.
Implemented event-driven processing using Apache Kafka to enable asynchronous workflows across backend services, improving throughput and resilience in logistics pipelines.
Led API security hardening and SAST/DAST remediation, addressing authentication, authorization, and input validation issues for customer-facing services handling business-critical data.
Improved system observability by integrating structured logs, metrics, and Splunk dashboards, reducing incident investigation and resolution time.
Developed Python-based automation scripts to support quarter-end operations, eliminating manual execution of database queries and optimising the processing of orders and RMAs, resulting in faster turnaround and reduced operational overhead.
Piloted Generative AI initiatives, building ReAct-style agents using LangChain, LangGraph, and LangSmith for fast-path incident resolution, integrated with Webex to improve response times while ensuring production-grade reliability and observability.

Java DevelopmentSpring BootApache KafkaREST APIs

Software Engineer

Aug 2022 – Nov 2023 · 1 yr 3 mos · Bengaluru, Karnataka, India

Developed Java-based order and inventory microservices using Spring Boot for Supply Chain and Logistics teams, exposing REST APIs for freight cost calculation, delivery identifier (DID) lookups, and lane (OTM) information consumed by external carrier partners.
Built reusable Java libraries and shared components, reducing code duplication across services and improving long-term maintainability and reusability.
Improved unit test coverage to ~80% for Java backend services by adding and refactoring unit and integration tests, reducing regressions during feature releases.
Led the migration of business-critical internal chatbots from a vendor platform (Botlite) to in-house Python + Flask–based services, improving response times and operational control.
Implemented Python-based automation and API testing for backend services, strengthening REST API validation and reducing manual testing effort.

Java DevelopmentSpring BootREST APIsPythonFlask

Technical Undergraduate Intern

Feb 2022 – Jul 2022 · 5 mos · Bengaluru, Karnataka, India

Worked with the Business Process Automation (BPA) team supporting enterprise PEGA-based applications, contributing to JVM maintenance and platform upgrades to ensure system stability.
Built a UiPath-based automation suite to monitor the health of the BPA platform by consolidating data from multiple sources, reducing incident response time and improving operational visibility.
Developed a customer service chatbot using RASA, integrating Salesforce and ServiceNow APIs to automate request handling and support workflows.

JavaUiPathRASA