WhiteTech is hiring a remote PHP developer to design, develop, test, document and support backend systems and APIs for fintech products. The role emphasizes Domain-Driven Design, Symfony, Doctrine, PostgreSQL, CQRS and Event Sourcing, containerization (Docker, Kubernetes), integration testing (PHPUnit, Codeception, Behat) and architectural design for large-scale microservices-based systems. Candidates across Europe (including specified non-EEA countries) or those able to work within CET are welcome.

WhiteTech seeks a remote PHP Developer with 4+ years of commercial PHP experience and hands-on SEON integration. The role focuses on building fraud detection/prevention flows, risk scoring and decision logic, orchestration within complex systems, and integrating SEON beyond simple API calls. Required skills include REST APIs/webhooks, asynchronous processing, queues, transactional consistency, idempotency, observability, SQL, and experience with Symfony or another modern PHP framework. Candidates across Europe (including listed non-EEA countries) and those able to work within CET are welcome to apply.

Lead backend developer role focused on PHP/Symfony development, RESTful API design, database design and optimization (PostgreSQL), integration of third-party payment systems, automated and integration testing, and architecture for scalable microservices and event-sourced systems. Remote-first position with flexible hours within the Central European Time zone; applications welcomed from Europe (including UK, Switzerland, and listed non-EEA European countries).

Join Olo's Menu team within the Order engineering group to develop and operate systems that manage and publish billions of menu records. Role requires ~3+ years experience, proficiency in the .NET/C# ecosystem, experience with CI/CD, testing (unit/integration), and distributed systems technologies such as Redis, Kafka and AWS. Responsibilities include feature development, debugging, deployment/monitoring, on-call duties, and collaborating with product and engineering peers.

Role focuses on designing and building scalable backend systems, APIs, infrastructure, and AI-powered developer workflows to improve developer productivity at Reddit. Requires 5+ years professional software development experience, strong Go proficiency, experience with large-scale distributed systems, APIs (GraphQL/REST/gRPC), Kubernetes/cloud, CI/CD and developer tooling; includes project leadership and mentoring responsibilities. Salary range stated for US-based applicants: $190,800–$267,100 USD/year.

Senior backend engineer to build production services, data models, APIs, and orchestration for AI-native marketing and growth products. Focus areas include incentives infrastructure (targeting, authorization, issuance, redemption, tracking), long-running workflows, integrations across marketing and financial systems, and applying AI with deterministic controls and human approvals. Requires 5+ years backend experience and strong proficiency in Python or another modern server-side language.

Veeva is hiring a Principal Software Engineer to be a founding member of a new AI-first product team building an enterprise SaaS platform. Responsibilities include full feature ownership, design and development, deployment and production support, mentoring, and promoting engineering best practices. Requires 12+ years of software development experience, production-level Python, and experience with FastAPI, Pydantic, Git and building scalable cloud applications. Listed base salary range: 180,000–275,000 CAD per year.

Join Veeva as a founding Principal Software Engineer on a new AI-first enterprise SaaS product. You'll own feature development end-to-end, use AI-assisted engineering practices, mentor engineers, and help architect and scale a high-volume cloud platform. Requires 12+ years of software development experience, production Python, FastAPI/Pydantic/Git familiarity, and unrestricted right to work in the United States.

Founding Principal Software Engineer for a new AI-first enterprise SaaS product. Responsibilities include full feature ownership (design, development, deployment, production support), driving technical design, mentoring engineers, and defining engineering best practices. Required: 12+ years software development experience, production Python, experience with high-scale SaaS/cloud applications, and hands-on with open-source tools including Python, Git, FastAPI, and Pydantic. Location: Boston, Massachusetts (Work Anywhere policy). No visa sponsorship provided.

Proofpoint is hiring a Backend Engineer to build scalable production systems in Go. Responsibilities include designing and implementing features end-to-end, developing and maintaining microservices, contributing to API design and service-to-service communication, debugging distributed systems, and writing well-tested code. Required: degree in Computer Science or related field, experience with Go or willingness to learn, and understanding of backend fundamentals. Preferred: experience with REST APIs or messaging, Goroutines, Docker/containerization, and exposure to cloud platforms (AWS/GCP/Azure).

Proofpoint is hiring a Backend Engineer to design and implement scalable microservices using Go. The role involves API and service-to-service design, debugging distributed systems, writing well-tested code, and collaborating across product and infrastructure teams. Candidates may be currently pursuing or recently completed a degree in Computer Science or related fields and should have knowledge of backend fundamentals, concurrency, and containerization; exposure to REST APIs, messaging systems, goroutines, Docker, and cloud platforms (AWS/GCP/Azure) is preferred.

Customer.io seeks a Senior Software Engineer to own the email channel end-to-end: frontend product surfaces (React/Ember) and backend systems (Go or similar) for high-volume message delivery, queues, event streams, observability, and resilience. Requires 7+ years building scalable distributed systems, experience with cloud-native environments (AWS/GCP), MySQL, and operating production services including on-call rotation. Salary range $150,000–$200,000 USD/year.

Owner of fraud ML: design and implement ML and rules-based systems, partner with Fraud Engineering and Data Platform teams, prototype and productionize models, and improve processes and tooling. Requires a bachelor’s in a quantitative field (or higher), a minimum of 5 years industry experience in ML/Applied Science/Data Science, strong Python (NumPy, pandas, scikit-learn, PyTorch), production ML deployment experience, and strong SQL (Snowflake/Postgres). Location: New York, NY (HQ) or Remote (US). Benefits include relocation expense coverage to NYC or SF and comprehensive benefits listed by region.

Encora is hiring a contract Backend Developer (Node.js) for a hybrid role in the Philippines. The role requires at least 5 years of IT experience, strong expertise in Node.js and backend development, hands-on knowledge of TDD, OOP, FP, software design patterns, experience with AWS/cloud and CI/CD, and domain experience in investments (stocks, crypto, funds). Responsibilities include designing, building, deploying and monitoring APIs and collaborating with frontend and SRE teams.

Bellroy seeks a developer comfortable in functional programming (Haskell or similar) to extend its bespoke e‑commerce platform and integrate with digital marketplaces. The role supports remote work from Australia or New Zealand or onsite in Collingwood, Victoria. Candidates should have 2+ years of production experience in a functional language; familiarity with Nix, AWS, and Ruby on Rails is a plus.

Build and maintain a backend AI platform to create, orchestrate, and evaluate multi-agent systems. Integrate multiple LLM providers (e.g., OpenAI, Anthropic, Cohere), use orchestration frameworks like LangGraph, develop evaluation frameworks, address AI privacy and data protection, and integrate search capabilities while collaborating with cross-functional teams.

Seeking a Senior AI Engineer to design and implement scalable AI platform services (model serving, orchestration, lifecycle management), integrate multiple LLM providers, build backend APIs, and apply LLMs to deliver user-facing features. Requires experience with cloud-native technologies (Kubernetes, Docker, AWS/GCP/Azure), MLOps, distributed systems, programming in Python/Go/TypeScript, and addressing AI privacy and security.

Join the AI Platform team to design, develop, and maintain a backend platform that enables users to create and manage intelligent agents and their interactions. Work includes integrating multiple LLMs (e.g., OpenAI, Anthropic, Cohere), using orchestration frameworks like LangGraph, building evaluation frameworks, addressing AI privacy and data protection scenarios, and integrating search capabilities. The role emphasizes scalability, multi-agent coordination, and collaboration with cross-functional teams.

Work on NVIDIA's proprietary GPU compiler backend (C++): design and implement register allocation and other code-generation passes, collaborate with hardware and application teams, and improve compiler performance and robustness. Requires 3+ years of compiler code-generation experience (LLVM preferred); base salary range listed as 152,000–241,500 USD per year.

Cribl is hiring a remote Software Engineer for its Core Platform team to design, develop, test, and maintain backend systems and APIs for ingesting, processing, and routing telemetry data. The role emphasizes distributed systems, scalability, performance profiling, and automated testing. Position is remote for the United States; applicants may need to comply with U.S. government security requirements (which may include U.S. citizenship). Base salary range listed at $150,000–$175,000 USD.