Top Backend Developer Jobs

Lead the unification of large heterogeneous datasets for generative audio models by creating robust systems for data ingestion, deduplication, and reconciliation. Collaborate with ML researchers and develop scalable entity-resolution solutions while tracking data quality metrics.

The Senior Backend Engineer will build and maintain data pipelines, ETLs, and services for robust analytics and application-ready content, ensuring data consistency and collaborating with various teams.

As a Senior Platform Engineer at Greenbox Capital, you'll modernize the origination ecosystem, focusing on scalable services, API development, and system integration, requiring strong collaboration and technical leadership skills.

Lead design, build, and maintain provider integration infrastructure connecting to insurance carrier and partner APIs. Own end-to-end connector development, testing, validation against live traffic, and ongoing mapping/business rules. Define technical direction, scope projects, mentor engineers, perform code reviews, and drive operational excellence while collaborating cross-functionally to align engineering work with product goals.

Build and operate scalable backend systems, APIs, storage, orchestration, and distributed infrastructure to support multimodal image generation and editing in ChatGPT. Optimize reliability, latency, throughput, and cost; partner with researchers and product teams to productionize AI capabilities; drive architecture decisions and mentor engineers.

Develop backend services and APIs for high-performance Web3 dApps on the Sei blockchain. Work with production Solidity contracts, design and manage SQL/NoSQL databases, and deploy infrastructure using AWS and Terraform. Collaborate with ecosystem partners to iterate quickly and ensure scalable, reliable backend systems.

Seeking two Senior Developers (Backend and UI) with 5+ years of experience in Java Application Development, SQL, and Agile methodologies.

The Staff Engineer will deliver cloud architecture solutions, collaborate with teams, manage cloud systems, and stay updated on tech trends.

As a Backend Engineer, you'll design and develop scalable backend features and APIs, ensuring high performance and reliability across distributed systems while collaborating with cross-functional teams to enhance user experience.

Design and build an EAV data model and schema-as-code platform, manage schema migrations, engineer AI tools, and mentor teams.

The Full-Stack Engineer will enhance backend functionality, collaborate with teams, and maintain platform performance and security, requiring expertise in Python.

The Backend Engineer will design scalable infrastructure for AI research tools, collaborate on optimizing system performance, and own evaluation pipeline automation.

Design, build, and scale backend contract and billing services supporting CPA and CPM models. Implement contract lifecycle, rate management, APIs, and integrations with finance. Ensure data integrity, auditability, reliability, observability, and performance. Lead technical design, mentor engineers, and collaborate with Product, Finance, and Data teams.

Design, build, and scale backend services for contract lifecycle and billing systems (CPA and CPM models). Develop APIs, ensure data integrity, auditability, reliability, and performance. Partner with Product, Finance, and Data teams, lead technical design, mentor engineers, and improve observability and error handling across contract workflows.

The Senior Software Engineer will develop self-serve tooling for marketing teams, focusing on AI-augmented workflows and internal platforms, ensuring high velocity and quality in project execution.

Design and build core backend systems for a multimodal voice AI and automation platform. Improve reliability, scalability, and low-latency realtime AI pipelines; drive engineering standards, code review, and tooling; solve problems around audio pipeline latency, guardrails, analytics, and integrations with customer systems.

Lead backend architecture and build scalable, high-concurrency services and APIs (Node.js) powering web and mobile. Own components end-to-end, manage CI/CD and infrastructure (IaC, containers, cloud), improve reliability, and collaborate with PM/design to deliver core features like live interactions and checkout.

Design, build, and scale backend services for real-time food ordering and operations. Write high-quality Java/Go code, ensure reliability, observability, and testability, design scalable databases, analyze data with SQL, mentor engineers, and collaborate with frontend, mobile, product, and operations teams to improve production systems.

Join a remote federal-focused team to design, build, and operate cloud-native microservices and REST APIs. Migrate mainframe functionality to AWS GovCloud/OpenShift, support high-throughput event-driven systems (Kafka, IBM MQ, etc.), implement observability, optimize databases, participate in code reviews, mentor junior developers, and rotate on-call support.

The Senior Backend Engineer develops core product features in ETL and GraphQL, designs APIs, builds ETL pipelines, and collaborates with frontend teams.

Partner with engineering teams to drive Kotlin backend adoption: guide migrations from Java, troubleshoot integration and scaling, recommend tailored strategies, track adoption stages, identify and remove blockers, and maintain feedback loops while running workshops, demos, and outreach.

Design, build, and maintain backend services for contract lifecycle and billing (CPA and CPM models). Develop APIs, ensure auditability and data integrity, improve observability and reliability, partner with Product/Finance/Data, own services and data models, lead technical design, and mentor engineers.

Design, build, and operate backend services and large-scale distributed systems powering Pinner-facing features. Partner with product, design, and data teams to implement GraphQL APIs, convert REST to GraphQL, improve developer productivity, employ automated testing and A/B experiments, and leverage AI to accelerate and validate engineering work from prototype to production.

Design and build scalable, reliable backend services in Python to support task planning and robotic workflows. Develop event-driven, messaging-based systems, collaborate with robotics engineers to integrate backend with hardware, improve performance and maintainability, and participate in code reviews and architecture decisions.

Design, build, and maintain Go-based backend microservices and Kubernetes operators for a hybrid cloud management platform. Implement REST APIs, manage PostgreSQL schemas and migrations, integrate with internal platform and cloud provider APIs, and ensure quality through unit/integration tests and system-level validation against real clusters.