Software Development Engineer II

Are you looking to Optimize your life? Start your exciting path to a rewarding career today! We are Optimum, a leader in the fast-paced world of connectivity, and we're seeking driven and enthusiastic professionals to join our team, empower lives, fuel businesses, and drive innovation. Connectivity is no longer a luxury, but a necessity. A career at Optimum means you'll be enabling progress and enhancing lives by providing reliable, high-speed connectivity solutions that keep the world connected. Our successes, now and in the future, are powered by our amazing product, a commitment to our people and culture, and the connections we make in our communities. If you are resourceful, collaborative, and passionate about delivering consistent excellence, Optimum is for you! Job Summary Optimum is a leading provider of Mobile, Broadband (DOCSIS, Fiber) and Video services in the United States. The Product Development organization is responsible for the technology enablement and development of these technologies for our customers along with the tools used by our teams to support them. Build and extend capabilities across Optimum's internal omni-channel API platform — a Go gRPC backend deployed across GCP, AWS, and private cloud environments, serving Optimum's call-center, sales, and customer-support operations. You will own API and service delivery across multi-step workflows, with coordination across backend systems and presentation-layer consumers where appropriate. Responsibilities Design and implement API capabilities using Go, gRPC, and Protocol Buffers that support business workflows across customer, order, billing, catalog, mobile, and related domainsDevelop and evolve service endpoints, orchestration logic, and integration layers across multiple backend and legacy systemsIntegrate with internal and external systems using established architectural patterns, including SOAP, GraphQL, and enterprise adapter approaches where applicableTranslate business requirements into Protocol Buffer contracts, Google AIP-aligned API designs, and reliable service implementationsExpose platform APIs to internal consumer applications through well-defined service and gateway interfacesAddress error handling, caching, and data consistency concerns across distributed service interactions involving Cloud Spanner, Redis, and related data storesBuild and maintain automated tests using Go test frameworks to validate service behavior, integration paths, and contract expectationsSupport user-facing feature delivery through stable API contracts and collaboration with presentation-layer engineering teamsParticipate in platform modernization efforts, including migration from legacy integration patterns toward gRPC-based service deliveryContribute to code reviews, technical discussions, and continuous improvement of engineering practices within GitLab CI-supported workflows Qualifications Bachelor's degree in Computer Science or equivalent experience3+ years of professional software development experience building and maintaining backend systems or service-oriented applicationsStrong Go development skills and experience building production backend servicesExperience designing, building, or consuming REST or gRPC APIs in production environmentsWorking knowledge of Protocol Buffers, contract-first development, and code generation workflowsUnderstanding of service integration patterns, including synchronous communication and messaging approaches such as Pub/Sub or Kafka where applicableExperience with relational or distributed data stores such as Cloud Spanner, and familiarity with caching using RedisProficiency with Git, code review practices, and GitLab CI or similar CI/CD pipelinesAbility to troubleshoot issues across API and service boundaries Preferred Experience with cloud platforms including GCP, AWS, and private cloud environments, and services such as Cloud Run, Cloud Spanner, Pub/Sub, and RedisExperience integrating with legacy enterprise systems via SOAP, GraphQL, or similar protocolsBackground in telecom, billing, mobile, or e-commerce domainsExposure to Terraform or infrastructure-as-code practicesExperience coordinating API delivery with frontend or client engineering teams At Optimum, every action and interaction we take part in, is driven by our three Guiding Principles: Do What’s Right, Drive One Optimum, and Make It Happen. These aren’t just words, they help us build trust, create real community, and embrace new ways of thinking. Our employees are empowered to do the right thing for our customers and co-workers and to recognize and reward these behaviors when we see them. It’s all part of the bigger picture of “Be The Difference” where each employee knows they have the power to enact real change, share new ideas, and understand that learning never stop. If you have the drive to succeed and are ready to embark on a thrilling career, seize this opportunity today, and join our winning team. Together, we'll shape the future of connectivity. All job descriptions and required skills, qualifications and responsibilities for a particular position are subject to modification by the Company from time to time, in the Company’s discretion based on business necessity. We are an Equal Opportunity Employer committed to recruiting, hiring and promoting qualified people of all backgrounds regardless of gender, race, color, creed, national origin, religion, age, marital status, pregnancy, physical or mental disability, sexual orientation, gender identity, military or veteran status, or any other basis protected by federal, state, or local law. The Company collects personal information about its applicants for employment that may include personal identifiers, professional or employment related information, photos, education information and/or protected classifications under federal and state law. This information is collected for employment purposes, including identification, work authorization, FCRA-compliant background screening, human resource administration and compliance with federal, state and local law. Applicants for employment with The Company will never be asked to provide money (even if reimbursable) as part of the job application or hiring process. Please review our Fraud FAQ for further details. Pay is competitive and based on a number of job-related factors, including skills and experience. The starting pay rate/range at time of hire for this position in New York is $100,246.00 - $164,689.00 / year. For other locations, please inquire with your recruiter. The rates/ranges provided herein are the anticipated pay at the time of hire, and do not reflect future job opportunity. We appreciate your interest in this opportunity. Applicants must be authorized to work for ANY employer in the U.S. Please note that at this time, we do not provide visa sponsorship for employment.