Top Backend Developer Jobs

Design, build, and optimize high-throughput, highly available backend services in Golang for 24/7 sports and prediction-market applications. Lead architecture decisions, implement features, diagnose and resolve high-concurrency bottlenecks, and provide high-tier operational support for real-time transactional systems.

Build and maintain a backend-first fullstack platform for governed AI workflows: design Python/Django services, APIs, Kubernetes-backed execution, agent orchestration, permission-aware data access, observability, frontend surfaces in TypeScript/React, and platform abstractions to make distributed AI workflows reliable, auditable, and usable by regulated customers.

Lead architecture and backend engineering for a startup ML product. Design and build data integration systems, cloud-native infrastructure, CI/CD and MLOps pipelines, enterprise security and networking, and event-driven systems (e.g., Kafka). Report to the CTO as the first non-founder engineering hire and make core product and architectural decisions.

Seeking a Senior Backend Engineer to build and maintain systems for a content marketing platform, focusing on performance, scalability, and innovation in a collaborative environment.

Own and modernize billing systems: define plans, pricing, entitlements, usage metering, and billing APIs. Decompose monoliths into independently deployable services, ensure end-to-end correctness (reconciliation, idempotency), operate SLOs/alerting, and run on-call. Integrate with billing, CRM, and finance systems.

Lead backend engineer for Identity & Access Management owning SSO (SAML/OIDC/OAuth2), SCIM provisioning, login/session flows, MFA, API key/token auth. Build enterprise identity features, improve operability (SLOs, monitoring, runbooks), partner on security/compliance, and mentor engineers while driving technical direction.

Lead design and implementation of backend services and APIs for payments, billing, settlements, ledgers, and reconciliation. Drive architecture for highly available, auditable financial platforms, integrate with payment processors and banking partners, ensure transactional integrity, observability, and compliance. Deliver end-to-end initiatives, mentor engineers, and operate mission-critical systems with strong emphasis on reliability, security, and scalability.

The Staff+ Software Engineer will shape the technical direction, mentor junior engineers, and lead complex software system development while collaborating effectively with cross-functional teams.

Lead technical delivery for customer implementations and integrations, architect and build workflows and platform components, adapt solutions to messy real-world customer systems, shape product roadmap with field insights, and travel 20–30% while working from the Chicago office.

Build and operate core backend APIs, integrations, and runtime infrastructure powering data, identity resolution, permissions, and workflow execution. Ensure reliability via observability, monitoring, failure handling, performance tuning, and operational tooling. Enable safe product and agent development and turn production feedback into platform improvements.

Design and implement high-performance backend services and telemetry ingestion pipelines in Rust. Build storage and querying systems for high-throughput, time-series, high-cardinality data, collaborate on architecture, and help transition on-prem systems to cloud while ensuring production-grade performance and maintainability.

Build and scale backend services for a real-time observability platform. Work on high-throughput data ingestion, streaming systems, pub/sub and async task pipelines, ensuring throughput, reliability, fault tolerance, testability, and production readiness under load.

Own design and evolution of supplier/item/price/document schemas, plan and run migrations/backfills on live customer data, build scalable queues and background jobs, set API and data patterns, implement customer-facing product features, and mentor other engineers. Work closely with customers and leadership and use AI tools in shipping model-driven features.

Develop scalable REST API microservices in ASP.NET Core (C#); model relational/NoSQL schemas; build high-throughput file-processing workers; design AWS infrastructure with IaC; participate in architecture and system design decisions.

Design and maintain scalable backend data systems, schemas, migrations, and high-throughput job pipelines. Build customer-facing product features, guide other engineers on data and API patterns, plan migrations/backfills, and ensure reliability and performance as usage grows.

Design and build the management layer for a distributed embedded system: policy structures, configuration storage and reliability, secret management, and engines. Architect and secure REST/gRPC APIs, optimize database performance, and collaborate on a high-availability cybersecurity product.

Design, build, and maintain backend foundations and tooling for an internal developer platform. Lead consolidation of platform primitives (developer portal, templates, GraphQL, event-driven patterns, OpenAPI, CI/CD). Collaborate with product teams, raise engineering standards, and integrate AI-native workflows to accelerate developer productivity.

Design, implement, and operate scalable backend microservices and REST APIs for robotics systems. Build production-grade code, CI/CD pipelines, containerized deployments, monitoring, and integrate backend services with multidisciplinary hardware teams while mentoring engineers.

Design, build, and maintain scalable backend services and APIs; implement authentication and secure session flows; develop real-time data pipelines and media handling; architect and migrate database schemas (Postgres to DynamoDB); collaborate with mobile/frontend teams to deliver low-latency consumer experiences; participate in full SDLC in a fast-moving startup environment.

Design, develop, and maintain scalable Java/Spring Boot backend services, build RESTful APIs, optimize relational databases (Postgres), implement business logic and third-party integrations, containerize and deploy with Docker and Kubernetes, and ensure code quality through testing and reviews.

Technical leader responsible for architecting and building Offer Delivery backend services (real-time bidding and direct offer placement). Design and implement Go services, ensure high availability and low latency, mentor engineers, drive cross-team delivery, participate in on-call rotations, and improve observability and data streaming for revenue-critical ad serving systems.

Build, architect, and own moderate-to-complex backend components; lead small teams or projects; provide technical guidance and code reviews; deliver end-to-end backend services focused on AI-enabled customer data insights, onboarding, messaging/calling features, and scalable data management for a growing user base.

Design and implement complex backend services for Binance Square. Collaborate with product, DevOps, and QA to deliver high-quality microservices, promote engineering best practices, and perform code reviews.

Build and maintain high-throughput distributed KYC services: translate business requirements into reliable services, write tests and docs, perform performance tuning and incident troubleshooting, collaborate across teams, and mentor junior engineers while following engineering best practices.

Join as an early-career full stack engineer to build frontend and backend product features, integrate AI coding tools into development workflows, translate product requirements into implementations, and grow toward autonomous full stack delivery while improving cross-team processes.