Senior Engineer / Architect Data Mediation (Telecom)

Job Description

Must Have Technical/Functional Skills

• 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 (Log back/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.

Roles & Responsibilities

• 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