Senior Engineer / Architect Data Mediation (Telecom)

Job Description System Architecture & Design – Lead the design of scalable, fault-tolerant mediation components including file ingestion, format conversion, SFTP distribution, event monitoring, and downstream delivery pipelines. Either of Nokia, Samsung, Ericsson, Cisco, Ciena dev experience in Data Mediation Binary Protocol & Telecom Data Expertise – Parse, decode, and transform binary telecom data formats including ASN.1-encoded CDRs/UDRs, AMA (Automatic Message Accounting) records, and proprietary carrier formats at the byte-stream level. Java / Spring Boot Development – Build and maintain core mediation services using Java 17+ and Spring Boot (Spring Integration, Spring Batch, Spring Kafka); contribute to shared starters and reusable platform libraries. Kubernetes / OpenShift Operations – Design and deploy containerized workloads on OpenShift/Kubernetes; own Helm chart definitions, resource tuning, PVC strategies, horizontal scaling, and rolling upgrade policies. Oracle Database – Design and optimize schemas for high-volume mediation metadata, reconciliation state, and audit trails; write and tune complex SQL for operational reporting. Site Reliability Engineering (SRE) – Define and enforce SLOs/SLIs; lead incident response; drive post-mortems; implement error budgets and auto-remediation patterns into the platform. Advanced Observability & Monitoring – Build deep observability into the platform: structured logging (Logback/ELK), distributed tracing (Open Telemetry/Jaeger), metrics (Micrometer/Prometheus/Grafana), and alerting strategies for carrier-grade availability. Performance & Reliability Engineering – Profile and optimize JVM performance, Kafka consumer throughput, file I/O pipelines, and database query patterns; establish benchmarks and regression gates. Cross-Team Technical Leadership – Drive architectural decisions, conduct design reviews, mentor engineers, and collaborate with network, OSS/BSS, and downstream consumer teams. Hands‑on experience with ASN.1 decoding, AMA record parsing, binary CDR/UDR formats (3GPP, ANSI), and byte‑stream manipulation. Strong Kubernetes and OpenShift skills: Helm, resource policies, stateful workloads, network policies, operator patterns. Proficient in Oracle SQL and PL/SQL: schema design, indexing strategies, partitioning, explain plans. SRE mindset: SLO/SLI definition, on‑call discipline, chaos engineering fundamentals, capacity planning. Experience building production‑grade observability: Prometheus, Grafana, Open Telemetry, ELK/EFK, alerting pipelines. Demonstrated ability to debug and resolve issues at the system level — OS, JVM, network, file descriptor limits, GC pressure, thread contention. Experience with Apache Kafka at scale: partition strategy, consumer group tuning, offset management, dead‑letter handling. Solid understanding of SFTP, S3/object storage, file lifecycle management, and large‑scale file distribution patterns. #J-18808-Ljbffr Tata Consultancy Services Limited