Top Backend Developer Jobs

Lead a portfolio of backend technology projects and an engineering team to build distributed microservices and cloud-based solutions. Collaborate with product managers, mentor engineers, experiment with emerging tech, and occasionally write or review code using Java, Python, Node.js, Go, or Scala, containers, orchestration, and AWS/GCP/Azure services to meet regulatory and customer needs.

Lead a portfolio of backend engineering projects and a development team to design, build, and operate distributed microservices and cloud-native solutions (Java, Go, Python). Mentor engineers, collaborate with product managers, ensure regulatory-compliant systems, and occasionally code or evaluate implementations.

Design and develop backend distributed systems for 5G non-terrestrial networks, Direct-to-Cell services, satellite orchestration, and terrestrial network coordination. Build scalable cloud-native software using C++, Golang, Java, gRPC, Protocol Buffers, and Kubernetes. Translate 3GPP and O-RAN specifications into reliable software, integrate platform components, document implementations, troubleshoot issues, and collaborate with telecom solution architects.

As a Backend Software Engineer, you will build forecasting software for military logistics, utilizing mathematical models and collaborating with teams to enhance operational capabilities.

Lead an agile team to design, develop, and operate low-latency, high-throughput distributed backend services and APIs using Java, Spring Boot, AWS and Kafka. Drive secure, scalable production code, adopt enterprise AI-assisted engineering practices, improve operational stability through automation, and evaluate vendor and architectural solutions.

Lead design and delivery of high-throughput, fault-tolerant backend systems for Aladdin. Build microservices, streaming architectures, and distributed applications; collaborate with product and global teams; apply test-driven development, perform code reviews, and provide production support while mentoring engineers and driving technical roadmap.

Lead design and delivery of a reliability platform for production systems. Own quarterly goals, guide engineers through ambiguity, collaborate with PM/design/analytics, monitor and operate services (on-call), set quality and code standards, and mentor teammates. Integrate AI/LLM tooling to improve automation, debugging, and service health.

Lead delivery for the Batch Infrastructure team: design, build, and operate reliable, scalable compute platforms for scheduled and on-demand batch workloads. Collaborate with product/design/analytics, define technical plans, ensure availability (monitoring/on-call), set code and design standards, and mentor engineers to improve delivery and quality.

Design, build, and operate high-throughput distributed backend systems using Go and Python. Develop Kafka-based event pipelines, REST, GraphQL, and gRPC APIs, optimize Postgres schemas and queries, and manage cloud infrastructure across GCP and AWS with Terraform and GitHub Actions. Maintain reliability, observability, and performance using Datadog. Own technical domains end-to-end, write design specifications, review code, deploy services, and support on-call operations.

Design, develop, and maintain scalable backend systems for a composite AI platform (agent-based systems, LLM integrations, RAG). Own technical vision and roadmap, make architecture decisions, establish engineering best practices, provide senior technical leadership, and deliver high-impact production software.

Lead backend engineering for cloud-native, event-driven data pipelines and customer integrations (especially EHRs). Evolve core data models and APIs, improve scalability and reliability, mentor engineers, define best practices, and drive end-to-end testing and AWS-based solutions.

Leads backend software projects and coordinates engineering work across the SDLC. Designs, develops, reviews, and operates scalable, fault-tolerant distributed services for Venmo’s payments platform. Collaborates with product managers and management, resolves technical issues, improves engineering processes, mentors junior engineers, and makes architectural decisions. Owns service performance and availability, participates in on-call rotations, supports incidents, and contributes to reliable cloud infrastructure using Python, databases, messaging systems, caching, and Terraform.

Design, develop, troubleshoot, and optimize enterprise-grade Python applications, distributed systems, data-processing services, and automation platforms. The role involves architecture, secure coding, database development, testing, CI/CD, observability, incident response, performance improvement, and production support. The engineer will collaborate with product, data, infrastructure, and business teams, participate in Agile processes, conduct code reviews, contribute to design decisions, and mentor junior engineers.

Build and scale backend systems for an enterprise AI platform serving financial institutions. Responsibilities include architecting REST and gRPC APIs, developing asynchronous server-side implementations, designing infrastructure for crawling, ranking, and retrieval, and writing secure, compliant, reliable, testable code. The role requires distributed-systems expertise, strong programming fundamentals, and ownership of high-quality product delivery in a fast-paced startup environment.

Build and scale backend services for consumer mobile products, including APIs, microservices, distributed systems, event-driven architectures, integrations, and asynchronous workflows. Improve performance, observability, reliability, monitoring, testing, and production resilience. Collaborate with product, design, data, and frontend teams in rapid two-week delivery cycles while contributing to system architecture and design reviews.

Build customer-facing backend features using Django, optimize application performance, reduce technical debt, and collaborate closely with teammates. The role requires Python web development, computer science and algorithm fundamentals, strong research and debugging abilities, sound technical judgment, and ownership of work from development through delivery. This is an in-person position in Kitchener-Waterloo, New York, or San Francisco, with authorization to work in the US or Canada and ability to travel between both countries.

Build and maintain high-performance, reliable backend systems for Yahoo Mail AntiSpam and Delivery. Design and develop complex server applications on Unix, leverage cloud platforms (GCP/AWS), containerization (Docker/Kubernetes), and ML/AI models to detect and deliver messages. Troubleshoot, optimize performance, and collaborate cross-functionally to ensure scalability and uptime.

Design and evolve core data models and durable APIs for complex communications networks. Build, test, operate, and maintain production-grade interfaces and abstractions for heterogeneous physical and logical networks while ensuring compatibility, consistency, quality, and performance. Manage project priorities, timelines, and deliverables within the Spacetime engineering team.

Design, evolve, and operate core data models and APIs for complex communications networks. Build durable abstractions for heterogeneous physical and logical networks, while maintaining interface quality, compatibility, consistency, and performance. Collaborate with experienced engineers to manage priorities, timelines, and deliverables across production systems. The role requires strong software engineering fundamentals and proficiency in Golang, C/C++, Rust, or Java.

Provides technical leadership and delivery ownership for engineers building scalable AWS cloud-native applications. Leads architecture and solution design across Java, Spring Boot microservices, OpenSearch, CI/CD, observability, and AWS infrastructure. Drives modernization, scalability, security, reliability, DevOps automation, incident resolution, and continuous improvement while mentoring engineers and collaborating with product, architecture, platform, and business stakeholders.

Develop scalable, secure backend satellite mission-operations software using Python and AWS. Build APIs, integrate cloud services, troubleshoot issues, optimize performance and costs, and automate processes. Contribute to generative AI integrations, DevSecOps, CI/CD, and software architecture. Collaborate with frontend engineers and product managers in an Agile Scrum environment while maintaining high standards for reliability, quality, and security.

Design, build, ship, and own backend product features used by developers and mobile app users at large scale. Scope projects, write reliable and tested code, monitor production systems, participate in architecture and roadmap decisions, respond to incidents, improve scalability and performance, communicate remotely, and mentor engineers. The role requires end-to-end ownership from problem definition through rollout and long-term maintenance.

Build and operate end-to-end full-stack applications for transaction monitoring and data controls. Develop responsive UI components, Java Spring Boot microservices, REST APIs, event-driven Kafka and Spark pipelines, and cloud-native GCP solutions. Contribute to LLM, Agentic AI, and RAG automation initiatives while ensuring scalability, resilience, observability, security, and performance. Collaborate with cloud, security, data, risk, and compliance teams across globally distributed environments.

Build end-to-end product features with a backend focus: schema and API design, UI work in React/TypeScript, GCP/Terraform infrastructure, CI/CD, DB performance tuning, production ownership, and product decision-making using AI coding tools.

Build, operate, and extend data platform and application-layer services enabling secure, self-service data applications at scale. Implement provisioning, CI/CD, access control, integrations, observability, automation, and incident response while contributing to semantic layer and AI-ready tooling roadmaps.