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Senior Backend Engineer

Xapien London💼 Full-time🗓 2026-03-26 → 2026-09-26

Core

Design and build complex, scalable backend services and systems for an AI-driven due diligence platform serving global law firms, private banks, and financial institutions.

Role type

Staff Backend Engineer (Technical Leadership)

Builds

High-scale backend platform components including investigations pipelines, core app systems, and AI-integrated features.

Domain

Fintech / AI / Due Diligence

Deliverable

production ML models | product features

Required skills

Go (expert), distributed systems, event-driven architectures, MongoDB, microservices, Kubernetes, GCP, technical architecture, mentoring

Preferred skills

Temporal, Kafka, LLMs/AI integration, gRPC, observability (Grafana/Prometheus), multi-tenancy, RAG systems

Technologies

Go, MongoDB, Temporal, Kafka, Kubernetes, GCP, Grafana, OpenAI, Gemini

Responsibilities

Own technical direction and architecture for platform domains; design and build complex backend services; drive technical decisions affecting multiple teams; establish patterns and standards; lead complex technical initiatives from design to implementation; mentor engineers across the organization.

Seniority

Staff, hands-on IC with significant leadership scope

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