Principal Engineer

Client is a VC-backed, cloud-native B2B platform transforming how hotels connect with global demand. Founded by serial travel-tech entrepreneurs and backed by Highgate Technology Ventures (HTV), we're building the next generation of hotel distributionautomated, scalable, and integrated directly with CRS/PMS systems.

Scale that speaks for itself:

1B+ search requests per day

40ms average response time

200M+ inbound messages daily

Live integrations with Hilton, Highgate, Wyndham rapidly expanding across the US and Europe

We're a remote-first, high-growth company with a strong engineering culture. Over the past 18 months, we've tripled our team, achieved 100% year-over-year revenue growth, and continue to scale rapidlywith real revenue traction and a growing global footprint. Our focus remains on automation and low-latency infrastructure to power real-time connectivity at scale.

Tech Stack

Backend & Infra: Java (Spring Boot), Microservices, AWS ECS, Redis, ScyllaDB, MongoDB, GraphQL, AWS, Lambda, SQS

Data & AI: Databricks, Spark, Kinesis, Claude, Cursor, LangChain

Observability: Prometheus, Grafana, CloudWatch

Role : Senior Principal Engineer (Java / Microservices)

Location: Remote (Work from Home)

We're hiring an experienced backend engineer (10-15 years) to help build scalable, real-time systems at the core of our global marketplace.

Responsibilities

Build and scale microservices with low-latency design & high-throughput for real-time hotel search and distribution.

Implement custom algorithms and data models to support pricing, availability, and inventory workflows.

Own end-to-end modules from design to rollout and collaborate with product/architect teams

Use AI developer tools (Claude, Cursor) and LLMs via prompts, RAG, and agents to accelerate development.

Participate in rigorous code reviews & contribute to a CI/CD pipeline that supports frequent, reliable, and automated deployments.

Requirements

10+ years of hands-on experience in Java, Spring Boot, and Hibernate.

Strong experience with MySQL, MongoDB, or ScyllaDB.

Built distributed, event-driven systems using SQS, Kinesis; solid understanding of fault tolerance, backpressure, and scalability.

Familiarity with data consistency models, circuit breakers, internal DSLs, and low-latency API design.

Proficient with Grafana, Prometheus, CloudWatch; have tuned systems for high throughput and sub-50ms latencies.

Comfortable working in a remote-first team with a culture of ownership, documentation, and async communication.

Passion for clean code, testability, and driving engineering excellence via automation and tooling.

Nice to Have

Hands-on with LLM pipelines or agentic workflows

Exposure to React or full-stack systems

Experience with Spark or Databricks

AI/ML Exposure

Why Join Us

Work on critical, high-scale systems for a global B2B marketplace

Work with high-scale, low-latency systems

Use AI tools to boost your productivity in daily development and automate the boring stuff

Fully remote team with strong ownership culture