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279 jobs

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279 jobs Posted Sort

Remote Principal Backend Engineer

RemoteAfricaPrincipal

A fully remote Principal Backend Engineer owns critical backend systems, sets technical direction and architecture, and mentors engineers while building scalable services and APIs. Core tech includes backend languages like Java/Python/Go/C#, distributed systems and microservices, SQL/NoSQL databases, and cloud with Docker/Kubernetes.

API AWS Azure Cloud Containerization +10 skills

Principal Backend Engineer (Forward Deployed)

Likely evergreen HybridNorth America, UKFull-timePrincipal

Leads AI-powered client solutions end-to-end, from discovery through deployment, serving as both engineer and technical consultant. Works with Python, LLM frameworks (LangChain, Hugging Face), FastAPI, Kubernetes, and cloud platforms to build scalable systems from messy data and ambiguous workflows.

Accessibility Agentic AI AI API Automation +20 skills

250K – 300K $

Palo Alto Networks

Senior Principal Backend Engineer (Cortex)

MENAFull-timePrincipal

Our Mission At Palo Alto Networks®, we’re united by a shared mission—to protect our digital way of life. We thrive at the intersection of innovation and impact, solving real-world problems with cutting-edge technology…

AI BigQuery Cassandra Cloud Cybersecurity +8 skills

Principal Backend QA Engineer (AI)

LATAM, North AmericaContractPrincipal

Nexaminds is hiring an SDET Architect (Principal-level) to lead enterprise quality engineering: defining test automation strategy across UI, API, integration, and data layers, architecting Java-based frameworks (Selenium/Playwright, Postman/RestAssured), enforcing CI/CD quality gates, and driving responsible AI/LLM adoption in QA workflows while mentoring SDETs.

Agentic AI AI API Automation LLM +6 skills

Principal Backend Engineer

RemoteUKPrincipal

Salary: £80,000 - £90,000 Location: UK or Europe Please note: We are unable to sponsor international visas at this time. About Nexus Mods Established in 2001, Nexus Mods is the largest video game modding platform on…

API Authentication CI/CD Distributed Systems Docker +12 skills

Principal Backend Architect — Remote (Java/AWS)

EuropePrincipal

Turnitin is seeking a Principal Software Engineer to join the Shared Services team and shape the technical direction of core platform capabilities used across Turnitin products. This is a highly influential individual…

Cloud Cloud Native Distributed Systems

Principal Backend Software Engineer

Open 51d RemoteNorth AmericaPrincipal

Principal Backend Engineer building internal tools and infrastructure to improve developer productivity at Atlassian, using languages like Java, Python, or Go and cloud platforms such as AWS/GCP/Azure.

Atlassian AWS Azure CI/CD Cloud +8 skills

210K – 274K $

Principal Backend Engineer Java Spring Boot AWS

Principal Backend Engineer at a global technology consultancy, taking technical ownership of complex, long-term Java Spring Boot and AWS transformation projects for financial services clients. Based in London or working from home, with a salary up to £120k.

AWS Java Spring

MOL ACCESSPORTAL SDN. BHD.

Principal Java Engineer — Backend Systems Leader

Principal Java Engineer at Razer Gold (MOL AccessPortal) in Kuala Lumpur, leading backend development and modernization of the core ecommerce platform. Day to day involves Java-based backend systems, JVM tuning, and work with AWS and SQL databases, reporting to the Senior Manager of Software Engineering.

AWS E-commerce Java JVM MySQL +3 skills

Backend Engineer for AI Applications

North AmericaPrincipal

Inworld is hiring a Staff/Principal-level backend engineer in Vancouver to build real-time backend systems and scalable cloud services for consumer AI applications, including an intelligent routing layer across 200+ LLMs and API services for TTS, STT, LLM, and RAG on GCP, AWS, or Azure.

AI API AWS Azure Cloud +3 skills

Rightmove Careers

Principal Engineer (Backend)

Open 85d HybridUKPrincipal

Principal Engineer leading backend architecture for Rightmove’s consumer property platform, using Java/Spring Boot to scale search, listings, and user-facing features under high traffic and user impact.

Agentic AI AI Java Observability Spring

Principal Engineer, Mobile Platform & Backend Systems

Europe, UKPrincipal

Principal engineer setting backend and platform architecture behind AlphaSense's native mobile apps: shaping client-facing REST/GraphQL APIs, shared identity and access services, and cross-team distributed systems, then building and proving them in production. Focus is backend/distributed-systems leadership, not iOS or Android development.

AI Android API Authentication Distributed Systems +6 skills

Remote Principal Software Engineer, Backend

HybridNorth AmericaFull-timePrincipal

Principal backend engineer at Headspace shaping the architecture of a high-scale consumer mental health platform serving millions of members. Day to day: lead system design, write TypeScript and Python, author RFCs, mentor engineers, and drive reliability and observability for distributed backend services.

API AWS CI/CD Cloud Cloud Native +10 skills

162K – 259K $

Roberts Recruiting, LLC

Principal Java Engineer (Back-End)

North AmericaPrincipal

Principal back-end engineer at a Boston Series A startup founded by construction business owners to modernize dump truck hiring and management. The role owns Java server-side services and RESTful APIs, with work spanning SQL data modeling, Docker containers, and distributed orchestration tools like Kubernetes.

Agile API Api Design Docker Dropwizard +5 skills

Roberts Recruiting, LLC

Software/Senior/Principal Engineer, Back End

North AmericaPrincipal

Back-end engineer (2–10+ yrs) at an agricultural technology company in Boston, building performant, fully tested APIs that support large-scale data transport for customer-facing applications. AWS familiarity is preferred and agile-environment experience is required.

Agile API Api Design AWS Design Patterns

Roberts Recruiting, LLC

Principal/Lead Backend Software Engineer

North AmericaPrincipal

Senior/lead backend engineer at a Boston fintech startup building digital banking, payments, and credit products for underbanked Brazilian consumers. The role is hands-on coding (SQL data models, REST APIs, cryptographic services) with NodeJS/TypeScript, AWS, Docker/Kubernetes, plus technical leadership and mentoring within an agile squad.

Agile API AWS Docker Event Driven Architecture +7 skills

Roberts Recruiting, LLC

Senior/Principal Back-end Developer (Remote)

North AmericaPrincipal

Senior or Principal back-end developer joining the Virtual Interlining team to design, build, and deploy greenfield services that generate synthetic flight inventory from combinations of non-codesharing airlines. Day-to-day involves distributed-systems architecture, large-scale data-driven modeling with data scientists, and shipping performant, testable backend code.

Agile CAD Data Science Distributed Systems Fintech +1 skills

Roberts Recruiting, LLC

Principal Back-end Engineer (Hybrid)

Principal-level backend engineer who leads platform services for the company's Path™ data platform: designing, building, and maintaining APIs and services in JVM languages (Java/Spring), setting engineering standards, mentoring junior engineers, and coordinating a distributed agile team. Core stack includes Java, Docker-based microservices, REST APIs, and MySQL/PostgreSQL.

Agile API Bitbucket Docker Dropwizard +10 skills

Principal Backend Engineer – London (Hybrid) | Up to £160k + Bonus

HybridUKPrincipal

A Principal Backend Engineer role at a fast-growing fintech in London (hybrid, 2-3 days in office). You provide technical leadership across multiple teams, drive architectural decisions, and mentor senior engineers, working with Java, Spring Boot, microservices, event-driven systems, AWS, Docker, and Kubernetes.

AWS Cloud Cloud Native Distributed Systems Docker +6 skills

Principal Backend Engineer

Principal Backend Engineer at Publicis Media in London owning backend and data-platform services across multiple teams: expert Python API and async service development, plus large-scale data pipelines using Databricks/PySpark and lakehouse/medallion architecture. Salary £55,000–£95,000 per year.

AI Analytics API Api Design Authentication +24 skills