Senior Go Backend Engineer - API & gRPC Platforms

Optimum Communications Inc.; Bethpage (NY); On-site; USD 100,000 - 165,000; Full time

Job summary

Optimum is a leading provider of connectivity services in the United States. The Product Development organization builds the internal omni-channel API platform (Go gRPC) deployed across GCP, AWS, and private clouds to support call-center, sales, and customer-support operations.

You will own API capabilities, service delivery across multi-step workflows, and collaborate with backend and frontend teams to modernize platforms toward gRPC-based delivery, REST/GraphQL integrations, and reliable

Qualifications

• Bachelor's degree in Computer Science or equivalent experience.
• 3+ years of professional software development experience building and maintaining backend systems or service-oriented applications.
• Strong Go development skills and experience building production backend services.
• Experience designing, building, or consuming REST or gRPC APIs in production environments.
• Working knowledge of Protocol Buffers, contract-first development, and code generation workflows.
• Understanding of service integration patterns, including synchronous communication and messaging approaches such as Pub/Sub or Kafka.
• Experience with relational or distributed data stores such as Cloud Spanner, and familiarity with caching using Redis.
• Proficiency with Git, code review practices, and GitLab CI or similar CI/CD pipelines.
• Ability to troubleshoot issues across API and service boundaries.

Responsibilities

• Design and implement API capabilities using Go, gRPC, and Protocol Buffers that support business workflows across customer, order, billing, catalog, mobile, and related domains.
• Develop and evolve service endpoints, orchestration logic, and integration layers across multiple backend and legacy systems.
• Integrate with internal and external systems using established architectural patterns, including SOAP, GraphQL, and enterprise adapter approaches where applicable.
• Translate business requirements into Protocol Buffer contracts, Google AIP-aligned API designs, and reliable service implementations.
• Expose platform APIs to internal consumer applications through well-defined service and gateway interfaces.
• Address error handling, caching, and data consistency concerns across distributed service interactions involving Cloud Spanner, Redis, and related data stores.
• Build and maintain automated tests using Go test frameworks to validate service behavior, integration paths, and contract expectations.
• Support user-facing feature delivery through stable API contracts and collaboration with presentation-layer engineering teams.
• Participate in platform modernization efforts, including migration from legacy integration patterns toward gRPC-based service delivery.
• Contribute to code reviews, technical discussions, and continuous improvement of engineering practices within GitLab CI-supported workflows.

Skills

Go development

REST/gRPC APIs

Protocol Buffers

Git & CI/CD

Cloud platforms (GCP/AWS)

Redis caching

Troubleshooting APIs

Education

Bachelor's degree in Computer Science

Tools

GitLab CI

Terraform

SOAP

GraphQL

Job description

Optimum is a leading provider of connectivity services in the United States. The Product Development organization builds the internal omni-channel API platform (Go gRPC) deployed across GCP, AWS, and private clouds to support call-center, sales, and customer-support operations.

You will own API capabilities, service delivery across multi-step workflows, and collaborate with backend and frontend teams to modernize platforms toward gRPC-based delivery, REST/GraphQL integrations, and reliable