Top Backend Developer Jobs

Architect and scale LlamaIndex's cloud platform, collaborating with engineering teams to create developer-friendly tools for context-aware applications.

The Founding Backend Engineer will architect and scale LlamaIndex's cloud platform, focusing on building scalable cloud services, containerized deployments, and user-facing APIs while collaborating with engineering teams.

The Senior Database & Backend Engineer will design and manage the backend architecture and API for the Huck app while ensuring scalability and performance.

The Backend Engineer will implement new SDK and Indexer features, automate testing, support integration, and oversee production releases.

Develop and maintain robust back-end applications, contribute to architecture decisions, and ensure software quality through automated testing and best practices.

The role involves developing features for Grafana's SaaS platform, mentoring team members, and improving operational systems. Candidates should have experience with distributed systems and strong coding skills, particularly in Golang.

As a Staff Backend Engineer for Tempo, you'll lead technical initiatives, own core component architecture, drive operational excellence, mentor engineers, and contribute to open-source projects, focusing on enhancing Grafana's tracing capabilities and API development.

Build and maintain backend systems processing millions of patient records daily to produce real-time risk scores. Develop data pipelines, feature engineering for ML, LLM-based clinical note parsing, and operate AWS/Kubernetes infrastructure with high concurrency, reliability, and uptime for hospital deployments.

Join as an early backend engineer building and scaling matchmaking and voice-AI systems. Design and ship backend features, optimize pairing algorithms, build admin tools, scale multi-market infrastructure, and own projects end-to-end while collaborating on architecture and product decisions.

Build and own core backend systems for a voice-first dating product: real-time voice/streaming infrastructure, fault-tolerant APIs, AI-ready pipelines, security and privacy by design, observability, and scaling from 0→1 while collaborating with product, design, and an AI engineer.

Design and build PostHog's observability stack (logs, traces, metrics) to ingest, store, and retrieve petabyte-scale telemetry reliably and cost-effectively. Own product area end-to-end from alpha to GA, make architecture decisions, implement high-throughput distributed systems, and optimize query/storage performance while ensuring data integrity in a multi-tenant SaaS environment.

Build and maintain core backend infrastructure for a decentralized perpetual exchange: develop an Entity Service API and UI, architect a low-latency real-time pricing engine, collaborate with quants/infra/data teams, and propose high-impact initiatives to scale the platform.

The role involves building and maintaining scalable backend solutions and infrastructure for the Databricks platform, focusing on resource management and cloud services.

Design and implement backend services and APIs, develop systems for personalization and recommendations, and collaborate with product teams to enhance the platform.

Contract .NET backend developer to design, build, and maintain server-side systems. Work with C# (4.0+), ORM tools (Dapper/Entity Framework), SQL Server, Web Services and Web API. Role is likely onsite in Pittsburgh for a 3–6+ month engagement; local consultants preferred.

Design, build, and maintain scalable backend services and data interfaces. Develop REST/GraphQL APIs, implement data ingestion/transformation, integrate with databases and third-party platforms, ensure security, reliability, and observability, and support CI/CD and infrastructure-as-code workflows.

Lead migration and optimization of low-latency trading infrastructure using IaC. Build self-service platform, orchestration tooling, and observability; reduce latency, run chaos/stress tests, and harden systems for security and reliability.

Develop and maintain Java backend services using Spring and microservices architecture. Require strong AWS expertise, troubleshooting skills, CI/CD experience; Kafka experience is a plus.

As a Senior Backend Engineer at Posh, you will design, build, and maintain scalable systems and APIs for AI features, focusing on Multi-Agent Systems and cloud infrastructure management.

The Senior Backend Engineer will enhance data integration infrastructure, manage internal systems, and collaborate with teams to execute engineering tasks for growth initiatives.

As a Senior Software Engineer, you'll own backend systems, mentor team members, and collaborate with product and design to build user-focused solutions.

As a Sr. Software Engineer, Backend, you will develop AI-powered solutions for clinical documentation and medical coding, collaborating with cross-functional teams to enhance SaaS products and deliver actionable insights for healthcare organizations.

Design, build, and deploy backend services for creative tools. Integrate with AWS, ensuring scalable and secure Python code for event processing and APIs.

Design and build scalable, reliable backend services and APIs. Participate in architecture and design reviews, collaborate with cross-functional squads, write clean testable code, use AI/LLM tools responsibly, and deliver customer-focused features rapidly.

The Backend Developer SME leads backend and geospatial technology initiatives, provides architecture strategies, and interacts with senior client leadership while ensuring technological alignment with mission objectives.