Note: The job is a remote job and is open to candidates in USA. KPG99 INC is seeking a Senior Software Engineer to modernize a large SAP Commerce Cloud platform using AI-assisted engineering, context engineering, and durable workflow orchestration. The role focuses on developing Java and Spring commerce capabilities, designing resilient long-running workflows, integrating enterprise systems, and improving testing, performance, incident response, and operational reliability.
Responsibilities
- Develop and support SAP Commerce Cloud capabilities using Java and Spring
- Build Integrations with OCC and REST APIs
- Design durable workflows for long-running commerce processes such as commerce cart work flows, order orchestration, inventory updates, and recovery operations
- Separate deterministic orchestration logic from side-effecting activities
- Design workflows that support: Durable state and event-history replay Automatic retries and configurable backoff Idempotent activity execution Timeouts, timers, and cancellation Compensation and business rollback Signals, events, and external callbacks Human-in-the-loop processing Workflow queries and operational visibility Versioning of workflows already in production Safe recovery after worker or dependency failure
- Establish meaningful workflow identifiers, task queues, concurrency limits, and rate controls
- Prevent unbounded workflow histories through appropriate continuation and lifecycle strategies
- Build automated workflow, activity, replay, integration, and failure-path tests
- Integrate durable workflows with SAP Commerce, Kafka, APIs, databases, and external services
- Apply AI and context engineering to code discovery, implementation, testing, documentation, incident response, and release analysis
- Build reusable AI instructions, agent skills, MCP integrations, repository context, and verification guardrails
- Diagnose SAP Commerce performance issues involving FlexibleSearch, persistence, caching, TaskEngine, Kafka consumers, and database contention
Skills
- Senior-level experience delivering distributed production systems
- Strong SAP Commerce Cloud/Hybris or similar platform development experience
- Advanced Java and Spring development skills
- Experience with React.js and modern JavaScript or TypeScript
- Hands-on experience with at least one durable orchestration platform, such as Temporal, Cadence, Azure Durable Functions, AWS Step Functions, or Conductor
- Strong understanding of:
- Workflow determinism and replay
- Workflow versus activity responsibilities
- At-least-once execution semantics
- Idempotency and duplicate prevention
- Retry classification and non-retryable failures
- Compensation and saga patterns
- Durable timers and asynchronous events
- Workflow versioning and backward compatibility
- Failure recovery and operational visibility
- Experience designing event-driven integrations using Kafka or comparable messaging technology
- Demonstrated use of AI coding assistants or agentic engineering tools on substantive software work
- Practical understanding of context engineering: equipping AI systems with appropriate domain knowledge, tools, instructions, examples, and validation
- Strong automated testing, debugging, performance-analysis, and production-support skills
- Temporal Java SDK experience
- Experience operating Temporal workers, task queues, namespaces, schedules, search attributes, signals, queries, and updates
- Experience testing workflow replay and safely evolving active workflow definitions
- Knowledge of Protobuf, schema evolution, and backward-compatible contracts
- SAP Commerce 2211, Java 21, and Spring 6 experience
- Experience with OpenTelemetry, Dynatrace, Kubernetes, Azure, and centralized logging
- Experience building AI agents, MCP servers, reusable agent skills, or retrieval-augmented development systems
Benefits
- Remote (USA)
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