Backend Software Engineer

Job Description About Epiq AI Labs Epiq AI Labs is the innovation and engineering hub behind Epiq's next-generation AI platform for corporate legal departments and global law firms. We operate as a startup within a global organization, focused on agentic AI systems, knowledge-driven reasoning, and enterprise-scale simulations. We are: Fast, experimental, and product-obsessedHighly collaborative, low-bureaucracy, deeply technicalBacked by the resources, data access, and distribution scale of a global ALSP We are building foundational AI systems intelligent agents, reasoning engines, knowledge bases, and structured workflows that transform how litigation, investigations, compliance, and corporate knowledge work get done. Our culture is that of a startup: high autonomy, high trust, rapid iteration, and a team that genuinely enjoys working together. About the Role You will build and operate the services behind our AI-driven legal platform: asynchronous processing, data pipelines, the data access layer, and authentication and authorization. These are load-bearing systems, owned end to end rather than in slices and as the platform grows, the surface you own grows with it. Scalability and reliability are requirements, not later additions. Services should absorb growth in tenants, data volume, and concurrency without redesign, tolerate partial failure through retry, idempotency, and graceful degradation, and carry enough instrumentation to diagnose production behaviour. We build on a modern stack and treat design as real work: choices about data models, service boundaries, and processing patterns are reasoned through and documented, made alongside senior engineers rather than inherited from them. The platform is early enough that what you build now will still be in its foundation years from now. Key Responsibilities Implement, test, and operate backend services and APIs that support our agentic AI platformBuild and maintain message-queue-based asynchronous processing, including retry and idempotency handling, dead-letter processing, and failure recoveryContribute to data pipelines that ingest, parse, store, and index large volumes of documentsImplement authentication and authorization functionality using OAuth2, OIDC, and SAML within established patterns, including role-based access control for multi-tenant environmentsDesign and optimize PostgreSQL schemas and queries, and carry out schema migrations against live production trafficIntegrate search and vector storage technologies such as Solr and QdrantInstrument services with metrics, logs, and traces; monitor service health and participate in the on-call rotationWrite automated tests, participate in code review, and maintain continuous integration pipelinesContribute to technical design documents and participate in design reviewCollaborate with AI engineers, other backend engineers, product management, and security stakeholders Required Qualifications 3+ years of professional experience building and operating backend services in production, including responding to production issuesStrong professional experience in Python development for backend services and APIs.Strong professional experience in C#/.NET application development. Strong database expertise in SQL with experience in database design, query optimization, stored procedures, and performance tuningExperience with at least one major cloud platform (AWS, GCP or Azure)Working experience with relational databases, including schema design, query optimization, and migrations (PostgreSQL preferred)Experience with asynchronous or event-driven processing, such as message queues (RabbitMQ, Kafka, or comparable) or task workersExperience designing and implementing REST APIs consumed by other services or teamsExperience with automated testing and continuous integration practicesFamiliarity with containerized deployment (C)Familiarity with observability practices, including metrics, logging, and tracingDemonstrated proficiency using AI tools in software developmentClear written and verbal communication, and the ability to make progress on ambiguous problems with appropriate guidanceStack: Python · PostgreSQL · RabbitMQ · Solr · Qdrant · OAuth2 / OIDC / SAML · Azure · Kubernetes · Docker · Terraform · Prometheus · Grafana · OpenTelemetry. Preferred Qualifications Experience with high-volume data or document processing pipelinesExperience with infrastructure-as-code tools such as TerraformExperience with multi-tenant SaaS architecturesExposure to AI/ML systems or data-intensive applicationsExperience in legal technology or another regulated industryExperience with authentication and authorization standards (OAuth2, OIDC, SAML)