We are seeking a Principal Engineer to lead Babel Street's API and MCP platform strategy and delivery as we evolve toward an AI-native, agent-driven platform. This is a hands-on, senior technical leadership role responsible for defining and delivering API-first platform capabilities that enable both developers and AI agents to interact with Babel Street's services. This is a hybrid role working out of either our Reston, VA or Somerville, MA office. Full remote may be considered.
Responsibilities
Partner closely with Architecture to define and lead Babel Street's API and MCP platform strategy; Design and deliver semantic, agent-ready APIs; Establish MCP standards and implementation patterns; Define context management patterns for agent workflows; Partner with AI and Data teams to enable agent-native architectures; Establish API governance and platform standards; Build foundational frameworks and reusable components; Provide hands-on technical leadership and mentorship; Partner with Google and other vendors on platform capabilities; Drive adoption of API and MCP standards across engineering teams
Requirements
10+ years of software engineering experience; Experience operating at Principal Engineer or Staff+ level; Strong hands-on experience building distributed systems; Experience designing and building API-first platforms; Experience with cloud-native architectures (GCP preferred); Experience building developer platforms or service-oriented architectures; Strong system design and architectural thinking skills; Proven ability to lead cross-team technical initiatives
Nice to have
Hands-on work with Google Cloud Platform (GCP); Familiarity with Vertex AI Agent Engine; Background in ADK and reasoning frameworks such as LangChain; Understanding of the Model Context Protocol (MCP); Exposure to data warehouse technologies like BigQuery and Snowflake; Knowledge of Apigee or similar API gateway solutions; Proven ability to design semantic APIs for AI or agent-driven use cases; Experience managing context or building memory systems; Development of agent-based architectures or orchestration frameworks; Exposure to Anti-Gravity
Benefits
Health benefits covering 85-100% of monthly premium costs for Medical, Dental, Vision, Life & Disability insurance; Traditional and Roth 401(K) retirement plans with a competitive match; Unlimited flexible leave; 12 paid Federal Holidays; Tuition reimbursement program
Stany Zjednoczone · Reston
