Senior Director of API Platform & MCP Strategy

hatch I.T.; Reston, Somerville (VA, MA); Hybrid; USD 190,000 - 230,000; Full time

Benefits offered by this job

Health benefits

Traditional & Roth 401(k) match

Unlimited flexible leave

12 federal holidays

Tuition reimbursement

Job summary

Babel Street is seeking a Principal Engineer to lead our API and MCP platform strategy, delivering semantic APIs and agent-ready interfaces to power AI-enabled workflows. This hands-on leadership role partners with AI, Data, and Platform teams to ensure scalable, discoverable services.

The role is hybrid from Reston, VA or Somerville, MA with potential for full remote. You will define patterns for context management, MCP exposure, and platform governance while mentoring engineers and guiding

Qualifications

• 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.

Responsibilities

• Partner 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.

Skills

10+ years of software engineering

Principal Engineer level

Distributed systems

API-first platforms

Cloud-native architectures (GCP)

Developer platforms / SOA

System design & architecture

Cross-team technical leadership

Job description

Babel Street is seeking a Principal Engineer to lead our API and MCP platform strategy, delivering semantic APIs and agent-ready interfaces to power AI-enabled workflows. This hands-on leadership role partners with AI, Data, and Platform teams to ensure scalable, discoverable services.

The role is hybrid from Reston, VA or Somerville, MA with potential for full remote. You will define patterns for context management, MCP exposure, and platform governance while mentoring engineers and guiding