Senior Platform Developer

Milestone Technologies is a global IT managed services firm that partners with organizations to scale their technology, infrastructure and services to drive specific business outcomes such as digital transformation, innovation, and operational agility. Milestone is focused on building an employee-first, performance-based culture and for over 25 years, we have a demonstrated history of supporting category-defining enterprise clients that are growing ahead of the market. The company specializes in providing solutions across Application Services and Consulting, Digital Product Engineering, Digital Workplace Services, Private Cloud Services, AI/Automation, and ServiceNow. Milestone culture is built to provide a collaborative, inclusive environment that supports employees and empowers them to reach their full potential.

Our seasoned professionals deliver services based on Milestone's best practices and service delivery framework. By leveraging our vast knowledge base to execute initiatives, we deliver both short-term and long-term value to our clients and apply continuous service improvement to deliver transformational benefits to IT. With Intelligent Automation, Milestone helps businesses further accelerate their IT transformation. The result is a sharper focus on business objectives and a dramatic improvement in employee productivity. Through our key technology partnerships and our people-first approach, Milestone continues to deliver industry-leading innovation to our clients. With more than 3,000 employees serving over 200 companies worldwide, we are following our mission of revolutionizing the way IT is deployed.

Job Overview

We're hiring a Platform Developer to build core services and integrations for an AI-first, cloud-native platform. You'll implement orchestration services (plan/route/trace), develop typed connector SDKs to external systems and models, and instrument robust observability. The ideal candidate is a hands-on engineer who writes clean, reliable code, understands distributed-systems trade-offs, and can optimize for latency, resiliency, and cost.

Key Responsibilities

• Orchestration Services: Build and harden services for planning, routing, retries/timeouts, idempotency, and call-graph tracing; ensure graceful degradation and fault isolation.
• Connector/Adapter Engineering: Develop typed adapters (REST/gRPC, MCP-style or similar) for AI engines, vector/graph/SQL stores, and in-silico tools; handle auth, pagination, rate limits, and backoff.
• Integration Delivery: Stand up at least one AI engine integration and one in-silico model runner; capture run provenance and metrics; provide mocks for offline testing.
• Observability: Instrument tracing/metrics/logging (OpenTelemetry or equivalent), correlation IDs, and structured logs; expose health/readiness endpoints and SLO dashboards.
• Performance & Caching: Optimize P50/P95 latency, concurrency, and throughput; implement response/result caches, connection pooling, and backpressure strategies.
• Quality & CI/CD: Write unit/integration/contract tests; maintain API schemas; participate in PR reviews; automate builds and environment promotion via CI/CD and IaC.
• Security & Compliance: Implement least-privilege access, secrets management, and audit logging; follow secure coding standards and dependency scanning.
• Documentation & Support: Produce developer docs and runbooks; support incident triage, root-cause analysis, and post-mortems.

Required Skills

• Backend Engineering: 4-8+ years building production services (microservices/event-driven) in Python,
• API & Contracts: Strong REST/gRPC design, OpenAPI/JSON Schema, idempotency keys, error taxonomies, pagination, and versioning.
• Distributed Systems: Retries with jitter, exponential backoff, circuit breakers, bulkheads, DLQs/queues (Kafka/SQS/Pub/Sub/RabbitMQ), and concurrency control.
• Data & Integrations: Experience integrating with vector DBs (e.g., pgvector, Pinecone, Weaviate, Milvus), graph DBs (RDF/SPARQL or property graph/Gremlin), SQL/warehouse, and search (OpenSearch/Elasticsearch).
• Observability: OpenTelemetry (traces/metrics/logs), log aggregation, alerting, and performance profiling.
• Cloud & DevOps: Containers/Kubernetes, Terraform/CloudFormation, CI/CD (GitHub Actions/Azure DevOps/Jenkins), secrets management (Vault/KMS), and environment promotion practices.
• Security by Design: OAuth2/OIDC, SSO integration, RBAC/ABAC, secure coding, and audit logging fundamentals.
• Testing Discipline: Unit/integration/e2e/contract testing; mocks/stubs; test data management.

Good to Have Skills

• AI/LLM Integrations: Function/tool-calling patterns, model routing, embedding services, and safe tool-use guardrails.
• Performance Tuning: Async I/O, connection reuse, profiling (pprof/py-spy), and cache strategy design.
• Resilience & Networking: Service mesh (Istio/Linkerd), API gateways, rate-limit governance, and zero-trust networking basics.
• Data Quality & Lineage: Basic familiarity with data validation, provenance, and lineage capture for pipelines.
• FinOps Awareness: Token/run-time cost tracking, cost-per-request dashboards, and budget enforcement hooks.
• Docs & DX: Developer portal contributions, code examples/SDKs, and CLI tooling to improve developer experience.

This role is ideal for a pragmatic engineer who enjoys building reliable platform primitives and integrations that other teams can depend on-secure, observable, and fast.

Estimated Pay Range:

Exact compensation and offers of employment are dependent on circumstances of each case and will be determined based on job-related knowledge, skills, experience, licenses or certifications, and location.

At Milestone we strive to create a workplace that reflects the communities we serve and work with, where we all feel empowered to bring our full, authentic selves to work. We know creating a diverse and inclusive culture that champions equity and belonging is not only the right thing to do for our employees but is also critical to our continued success.

Milestone Technologies provides equal employment opportunity for all applicants and employees. All qualified applicants will receive consideration for employment and will not be discriminated against on the basis of race, color, religion, gender, gender identity, marital status, age, disability, veteran status, sexual orientation, national origin, or any other category protected by applicable federal and state law, or local ordinance. Milestone also makes reasonable accommodations for disabled applicants and employees.

We welcome the unique background, culture, experiences, knowledge, innovation, self-expression and perspectives you can bring to our global community. Our recruitment team is looking forward to meeting you.