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Babel Street is 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. You will lead the design and implementation of semantic APIs, Model Context Protocol (MCP) integrations, and context-aware service patterns that power next-generation intelligence workflows.
This role requires a finger-on-keyboard engineer who can both define direction and deliver foundational systems. You will partner closely with AI, Data, and Platform teams to ensure Babel Street’s APIs and services are consistent, discoverable, scalable, and optimized for agentic workflows.
You will work in close partnership with the Architecture function to align on long-term technical direction, ensuring API and MCP platform decisions are consistent with the company’s broader architectural vision while maintaining a strong focus on execution and delivery.
This is a hybrid role working out of either their Reston, VA or Somerville, MA office. Full remote may be considered.
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
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 building developer platforms or service-oriented architectures
Strong system design and architectural thinking skills
Proven ability to lead cross-team technical initiatives
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
30 Days
Assess current API and platform architecture
Define API and MCP platform strategy
Identify early opportunities for standardization
60 Days
Deliver initial platform frameworks and standards
Begin rollout of semantic API patterns
Establish MCP integration approach
90 Days
Agent-ready APIs in production
MCP-enabled services deployed…
Hatch IT
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Hatch IT is a recruitment firm dedicated to the technology sector. They specialize in connecting companies with skilled tech professionals, providing comprehensive talent acquisition and staffing solutions.
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