Work on full-stack and systems engineering for Replit Agent: build high-throughput backend services (e.g., streaming chat), design a collaborative "Multiplayer Computer" for humans and AI, and develop frontend/backend infrastructure that empowers product engineers. Requires 8+ years professional experience in building backend services, systems, and platforms; preferred experience includes AI tooling, collaborative editing technologies (OT/CRDT), Git internals, and event sourcing. Role is full-time, hybrid (in-office Mon/Wed/Fri) in Foster City, CA.

Principal role to define roadmaps and lead design of communication libraries (NCCL, UCX, UCC, NVSHMEM, MPI) and collective algorithms for trillion-parameter models; requires 12+ years in HPC/distributed deep learning, expertise in RDMA/RoCE/InfiniBand, CUDA/GPU memory hierarchy, 3D parallelism and inference/serving technologies (e.g., TensorRT-LLM, vLLM). Salary range provided: 272,000–431,250 USD/year.

Build and own end-to-end data products (Data Feeds) and resilient distributed systems for multiple blockchain environments. Work with smart contracts and backend stacks (Golang, Solidity, Move, Rust, TypeScript, Postgres) in a remote role that asks for some overlap with Eastern Standard Time. Requires 7+ years of professional software engineering experience and experience with blockchain/Web3, systems design, and distributed/low-latency systems.

DuckDuckGo is hiring a Senior Backend Engineer to work remotely across multiple countries. The role requires 7+ years of backend experience (Perl, Go, Node.js), familiarity with AI agent tooling (RAG, prompt engineering, evaluation frameworks), and building/maintaining data processing pipelines and search-relevancy features. Responsibilities include owning complex projects, mentoring engineers, and collaborating across teams. Compensation listed at $178,500 USD/year plus stock options. Candidates should expect ~40 hours/week, occasional travel (~2x/year for all-hands and retreats), and a background check; company-sponsored health benefits are limited to US-based team members.

Lead technical subject-matter expert responsible for designing developer tools, APIs, and workflows for chemistry and materials science, translating ML and simulation research into production software, prioritizing features across teams, and representing NVIDIA at scientific venues. Requires a PhD or equivalent, 8+ years building AI/ML software for chemistry or materials applications, strong GPU and ML framework experience, and deep knowledge of interatomic potentials, generative modeling, and quantum chemistry workflows.

Replit seeks a Senior Product Engineer for Product Foundry to lead high-ownership, 0→1 initiatives as an Engineer DRI in lean, autonomous squads. The role focuses on building and operating platform systems, enabling agentic/AI-driven development (coding agents), and shipping fast through 3-week sprints; requires strong product judgment, cross-functional leadership, and experience with modern web stacks (TypeScript, React, Node.js, Postgres).

Businessolver seeks a Software Engineer III to design, implement, test, and deploy production software for an agentic chatbot platform (intake, orchestration, retrieval, answer generation, caching, integrations). Requires 8+ years in large-scale enterprise development and experience with Python, Java, SQL, FastAPI, APIs, Linux, Git, Agile, and familiarity with OpenAI/LLM APIs and prompt design.

Proofpoint is a cybersecurity company protecting email, cloud, and collaboration tools. This listing is for a Senior Software Engineer role based in Bengaluru, India with remote work indicated. The description emphasizes the company mission, values, benefits, and application instructions but does not specify responsibilities, experience requirements, salary, or employment type.

Build and improve Replit's mobile experience (React Native, TypeScript, Expo, Apollo/GraphQL, Swift, Kotlin). Responsibilities include shipping features, optimizing UI rendering performance, debugging and deploying iOS/Android apps, collaborating with designers and engineers, and improving app quality and observability. Requires 5+ years professional software development experience.

Position to design, implement, and deliver BMC firmware and server manageability solutions (including OOB management and firmware security) for enterprise GPU-based AI servers. Requires experience with BMC firmware on x86/ARM, low-level platform interfaces (I2C/SPI/PCIe/JTAG), OpenBMC/DMTF standards, C/C++ and scripting (Python/bash), and end-to-end delivery of enterprise server platforms. Bachelor's (or higher) in EE/CS or equivalent and 5+ years' experience.

Research and develop techniques to GPU-accelerate leading federal-ecosystem applications; perform in-depth analysis and optimization for current and next-gen GPU architectures; craft and optimize parallel algorithms and data structures; contribute reference code and software stack; collaborate with architecture, research, libraries, tools, and system software teams. Occasional travel. Salary ranges provided by level in posting.

Remote B2B freelance role supporting development and maintenance of an enterprise SaaS platform. Requires 3–4 years backend experience with Java and Kotlin, familiarity with Spring Boot, REST APIs, SQL, and ERP integrations; work hours ~14:30–22:30 CET. Professional English and ability to operate independently in distributed teams are required.

Wizeline seeks a Senior Salesforce Developer (Romania-based, remote) to meet with project managers, design, code and implement customised Salesforce solutions, test and troubleshoot applications, maintain documentation and ensure application security/integrity. Required skills include advanced Salesforce CRM knowledge, Apex, JavaScript, VisualForce, Aura, LWC, MySQL, VS Code and Azure DevOps/Pipelines. Preferred experience includes SDFX, Git-based source control and automated testing of Salesforce customizations.

Remote Senior Growth Engineer role responsible for end-to-end growth engineering projects: building marketing site features, referral and attribution systems, tracking and analytics infrastructure, and A/B testing. Works cross-functionally with marketing, design, and engineering; participates in on-call rotation and occasional in-person team gatherings once or twice per year. Tech stack emphasizes React, TypeScript, Next.js and integrations with Segment, GTM, Mixpanel, and BigQuery.

Seeking a Senior Full-Stack AI Engineer to own end-to-end delivery of production Gen-AI features (RAG, tool-calling, agents, prompting, evals, guardrails). Requires 6+ years building production front-end and back-end software, strong JavaScript/TypeScript skills, experience with React/Next.js and Node.js, SQL/Postgres, vector stores, cloud (AWS/GCP/Azure/Vercel), and CI/CD. Role involves client-embedded consulting and light DevOps ownership.

Twilio seeks a Staff Software Engineer for the Data Substrate team to design and implement large-scale, reliable data systems and storage/processing frameworks. Requires 8+ years of software development experience, expertise with distributed systems and big data technologies (Hadoop, Spark, Kafka), experience with AWS, proficiency in Python/Java/Scala, and hands-on experience with Data Lakehouse formats (Hudi, Iceberg, Delta). Role is remote within the United States (some US states excluded) and may require occasional travel for meetings.

NVIDIA is hiring a Senior HPC and AI Network Software Architect to build and evolve scalable systems for distributed AI training and real-time inference. Responsibilities include developing communication and runtime capabilities (e.g., NCCL, UCX, UCC), partnering with AI framework teams (TensorFlow, PyTorch, JAX), and collaborating on hardware/system features across GPUs, DPUs, and interconnects. Requires Ph.D. or equivalent experience, 5+ years in systems programming, parallel/distributed computing or HPC, and strong C++, Python, and GPU programming experience. Locations referenced: UK, Poland, Germany, Switzerland (Zurich) and remote.

Entry-level Deep Learning Software Engineer role (New College Grad 2026) working on TensorRT and related inference frameworks. Requires a relevant degree, about 2 years of software development experience, strong C++ and Python skills, experience with DL frameworks (PyTorch/JAX/TensorFlow/ONNX) and inference libraries, and expertise in performance analysis and optimization for GPU-based inference.

Work on the Desktop Platform team to design, develop, and maintain lifecycle components of Docker Desktop (installers, updaters, startup, system services) across macOS, Windows, and Linux. Requires 6+ years building backend/software/platform components with hands-on Go experience, strong OS fundamentals, debugging of complex system-level issues, and contribution to documentation and cross-team integration. Role is remote-first but limited to candidates living in the East Coast time zone (US or Canada).

Customer.io is hiring a Senior Software Engineer (Backend) to design, build, and operate large-scale distributed systems in Go. The role requires 7+ years building scalable systems, experience with cloud-native environments (AWS/GCP), familiarity with MySQL, observability and operating production systems, and ownership of end-to-end architecture, testing, deployment, and monitoring. Salary range: $150,000–$200,000 USD/year.