Staff Software Engineer, Backend (Cluj)

Design, implement, and maintain backend services and APIs to support applications. Collaborate with cross-functional teams to deliver end-to-end solutions.

Senior Fullstack Software Engineer (Backend)

Design and implement core services spanning platform APIs, data models, and application layers. Own platform foundations supporting analytics, workflows, AI agents, and marketplace experiences.

Software Engineer (Backend)

Design, architect, and build the core product as part of the engineering team. Take ownership of outcomes and support them through iteration and documentation.

Staff Software Engineer, Backend (AI Platform)

The role involves designing, building, and maintaining low-latency serving stacks for ML models, as well as automating training pipelines and optimizing performance at scale. Additionally, the engineer will create reusable SDKs and mentor others on production ML best practices.

Senior Backend Engineer - Client integrations (Europe)

As part of the Client Integrations team, you will design and build external-facing APIs that power customer workflows. You will also improve database performance and integrate with third-party services.

Senior Backend Engineer - Client integrations (USA)

As part of the Client Integrations team, you will design and build external-facing APIs that power customer workflows. You will also improve database performance and integrate with third-party services.

Senior Backend Engineer, Data Pipelines and Integrations

The Senior Backend Engineer will design and maintain data models and build high-reliability ETLs and streaming pipelines. They will also ensure data consistency across various systems and collaborate with multiple teams to support product features and analytics.

Senior Backend Engineer, Data Modeling and Ingestion Platform

The Senior Backend Engineer will lead the unification of large datasets from various external providers to create foundational datasets for generative audio models. Responsibilities include building bulk ingestion workflows, designing entity-resolution solutions, and collaborating with ML researchers.

Senior Backend Engineer

Own high quality solutions from design to production, including testing, monitoring, and documentation. Collaborate effectively in a globally distributed, diverse, and cross-functional team to tackle ambiguous problems and drive architectural improvements.

Senior Backend Engineer

As a Senior Backend Engineer, you'll design and develop scalable back-end systems and APIs for high-impact applications. You'll own the full software development lifecycle and resolve production issues with urgency.

Sr. Backend Software Engineer (Ad Engineering)

Design, implement, and monitor the next generation of Philo's Server-Side Ad Insertion (SSAI) service. Collaborate with internal and external stakeholders to optimize ad delivery processes and build scalable data pipelines.

Staff Backend Software Engineer

You will design and maintain highly scalable backend systems to support messaging infrastructure handling billions of messages. You will work closely with a technical team to build innovative products from scratch while ensuring high performance and reliability.

Sr. Backend Platform Engineer (Python)

You will own the complete lifecycle of scalable Python backend services, from architecture and implementation to deployment and long-term support. Additionally, you will collaborate with cross-functional teams to integrate healthcare platforms and leverage AI to improve engineering workflows and product capabilities.

Backend Application Engineer

Design and build internal platform services and shared infrastructure to support high-throughput, latency-sensitive backend operations. Develop durable event-processing pipelines and caching layers while ensuring robust observability and operational standards across the organization.

Senior Backend Software Engineer

Serve as the technical lead for core backend products, guiding development from design through production implementation. Design and optimize high-traffic APIs and microservices while ensuring system reliability, scalability, and performance.

Backend Software Engineer

The engineer will design, build, and operate foundational backend platforms and shared services to support high-throughput traffic. Responsibilities include managing request routing, caching layers, asynchronous job execution, and durable event processing.

Sr. Backend Software Engineer (Video Engineering)

Design, implement, and monitor the next generation of Philo’s video streaming pipeline using in-house and open-source technologies. Collaborate with cross-functional teams to optimize video delivery, performance, latency, and the overall user viewing experience.

Senior Backend Software Engineer

Drive large, complex projects autonomously from technical design to launch while leading code reviews and documentation. Partner across engineering teams to tackle company-wide initiatives and mentor junior team members.

Software Engineer II, Backend (Batch Developer Experience)

You will collaborate with product and infrastructure engineers to build tools that streamline batch development and improve system reliability. Additionally, you will support the operations of team artifacts by monitoring metrics and participating in on-call efforts.

Backend Geospatial Engineer II

The Backend Geospatial Engineer II will build and maintain data pipelines, APIs, and services for geospatial programs while ensuring the quality and defensibility of datasets. This role involves designing validation logic, automating testing, and collaborating with cross-functional teams to deliver reliable geospatial systems.

Backend Software Engineer II- Data Platform

Build and maintain backend services that ingest, validate, and process data from external partners for core business domains. Collaborate with cross-functional teams to design resilient data pipelines and improve the performance and observability of production systems.

Sr Principal / Architect Engineer, Software - Backend, Alerting (Chronosphere)

Design, build, and ship reliable product features for the alerting platform using Go and Kubernetes across cloud platforms, while collaborating with product, design, and engineering teams. Lead intuitive alerting and troubleshooting experiences, improve testing and deployment infrastructure, and mentor engineers in delivering performant, high-quality software.

Senior Backend Application Engineer

Architect and build robust, fault-tolerant web and ETL services capable of handling high throughput. Collaborate with cross-functional teams to optimize system performance and maintain high engineering standards.

Software Engineer II, Backend (Decisions Orchestration)

You will design and implement APIs and microservices to manage user transactions while improving the performance and reliability of the checkout platform. Additionally, you will collaborate with cross-functional teams to build financial products and define long-term system health.

Backend Software Engineer

You will build and maintain REST APIs, configure monitoring for backend services, and develop CICD pipelines. Additionally, you will build features and integrations with a focus on reliability and core customer experiences.

Software Engineer III: Backend C#

Design, develop, and maintain scalable backend services and APIs using C#/.NET while leveraging AWS cloud technologies. Collaborate with cross-functional teams to build secure, high-performance payment processing solutions and support critical business systems.

Staff Backend Software Engineer - Agent Platform (Go/Python)

Drive rapid response to customer-critical incidents by diagnosing and resolving complex production issues across the Agent Platform. Design, develop, and operate large-scale, high-volume distributed systems while leading systematic root-cause analysis to improve platform reliability.

Software Engineer II, Backend (Streaming)

You will design, scale, and maintain backend data infrastructure while collaborating with cross-functional teams to deliver event-driven solutions. Additionally, you will support system operations, monitor performance metrics, and participate in on-call efforts to ensure service availability.

Senior Back-End Software Engineer

Software Engineer II, Backend (Identity Decisioning)

Build and maintain backend systems that validate consumer identities across Affirm products and meet regulatory requirements such as KYC. Deliver projects in phases, collaborate with product and partner teams, monitor system health, support on-call operations, and contribute to team development.