You will work with Python, Java, Go, React/TypeScript, Apache Kafka, PostgreSQL, Git/GitHub, AWS, and CI/CD pipelines. As part of a client-facing delivery team at a digital engineering company, you will design and build technology-enabled platform solutions.

You will build a new Commercial Management platform from scratch using C#/.NET and React, working with AI-native tools like Claude Code and cloud platforms (Azure, AWS, or GCP). The product gives construction businesses real-time visibility into project performance, commercial risk, and profitability. As a founding engineer, you will help take this product from MVP to a fully commercial SaaS platform.

5+ years of backend engineering experience with Python or Node, building distributed systems and serverless architectures on AWS, and ideally with Solidity. The role is with AryaEdge, a company with multiple open product and engineering roles.

Architect low-latency inference pipelines for multimodal LLMs, TTS, and Vision models using Python, C/C++, PyTorch/JAX, TensorRT/ONNX, and custom CUDA/Triton kernels. Optimize with Speculative Decoding and KV-Cache quantization. Iconic Interactive is a seed-stage AI-native video game studio building intelligent virtual actors that speak, move, and react in real-time.

You will work with Python, FastAPI, TypeScript, React, and GCP to design and build services, data models, and APIs. Electric Twin builds a behavioral simulation platform that creates "digital twins" of populations to help organizations predict human behavior.

You'll build features using Svelte/TypeScript on the front end and Python (FastAPI/Django) on the back end, with AWS infrastructure. Tab is a profitable London travel fintech processing real-time payments in 100+ currencies for over 100,000 independent tourism businesses globally.

You'll work with LLMs, chain-of-thought prompting, RAG architectures, multi-agent tool use, Python, and FastAPI. Electric Twin builds synthetic populations for behavioral prediction, simulating human responses for global brands using LLMs.

You’ll build multi-agent systems and LLM pipelines using Python, LangGraph, CrewAI/agent SDKs, and models like GPT, Claude, and Perplexity, on AWS Bedrock, ECS Fargate, Lambda, and Step Functions, with RAG and MCP servers. The role supports AMPLIFYR.ai’s production brand analytics platform, delivering market-positioning insights through multi-agent research workflows.

You will develop and deploy production-grade LLM-powered agentic systems with persistent memory, tool orchestration, and RAG pipelines, integrating with Google Ads, Meta, and CRMs. You will build autonomous agents for marketing operations at a Series A startup building an AI-native teammate for marketing teams. As the second ML hire, you will shape the production stack and product roadmap.

Work with Angular 19, FastAPI, Python, and Kubernetes. Join a 13-person team shipping high-impact features like product launches and partner integrations for Urban Jungle's insurtech platform serving 300,000+ customers.

You'll build Python backends, React frontends, and core ML systems for an AI-driven vulnerability management platform that prioritizes cybersecurity threats using attacker logic. You will own model training, evaluation pipelines, and agentic AI features.

You will work with TypeScript, JavaScript, gRPC, Redux, React Native, React, Next.js, and infrastructure like Google Cloud Platform, Kubernetes, and Docker. The role focuses on building new features and integrations for Emma’s mobile and web apps, which help users manage all their finances.

The role involves building and maintaining the company’s platforms,

Work with SAP Hybris (SAP Commerce Cloud), Java, Spring Framework, REST APIs, SQL, relational databases, Git, CI/CD, and Agile. Develop and enhance ecommerce platforms for retail clients.

As a Senior Fullstack Engineer, you will use Python and React.js to design and build robust web applications and backend services. You will work within a consulting team at Parser, a firm that helps global organisations with digital transformation, product development and AI enablement.

You'll work with C#, .NET, and Angular as a Lead Full Stack Engineer at an ambitious fintech startup. You'll shape technology and architecture, mentor engineers, and drive the engineering team's growth during an exciting expansion phase.

Lead Full Stack Engineer will work with C#, .Net, and Angular. The role is for an ambitious fintech startup entering a growth phase, where they will influence architecture and mentor engineers. The listing does not specify team size.

Java Developer role at Matchtech using Java, Spring Boot, Spring MVC, REST APIs, microservices, SQL, MySQL/PostgreSQL/Oracle, and Git/Bitbucket. The listing focuses on backend or full-stack development requirements but doesn't specify a particular project or team scope.

Build enterprise-grade applications using C#, .NET, Azure, SQL, Angular, MVC, and Docker. Collaborate across teams for design, development, code reviews, and troubleshooting, driving continuous improvement.

You will work with Java, Spring Boot, React, Node.js, PostgreSQL, ActiveMQ, and Kafka to build software as part of an agile team. The company operates as a financial services organization.

Lead Software Engineers and Technical Leads use Python and Django to design, develop, and support scalable backend services for a UK Government digital programme. They work in a multidisciplinary agile team delivering secure, user-focused services, with Technical Leads also providing guidance, mentoring engineers, and shaping architecture.

You'll work with TypeScript, React, Node.js, Python, and Google Cloud/AWS, architecting AI-native systems including LLM-powered workflows and agentic pipelines. Steven.com builds the operating system for the creator economy, powering proprietary AI infrastructure and digital products. This is the most senior individual contributor role, owning architecture for the company's highest-stakes systems.

Mid-level backend engineer role working with TypeScript/JavaScript, gRPC, Vitess, MySQL, CockroachDB, BigQuery, Redis, Google Cloud Platform, Kubernetes, Docker, Terraform, and monitoring tools like Grafana and Prometheus. You'll build Emma's personal finance app, tackling scaling, data processing, and features like overdraft prediction and subscription clustering, working directly with the CTO.

As a founding engineer at this YC-backed AI start-up, you'll work with Python, TypeScript, Java, or Go to build products that solve real customer problems from day one, collaborating directly with founders and users.

You will work with Python, build and deploy LLM-powered systems in production. The company uses AI to solve a real-world problem, and you will be one of the first technical hires, working directly with the founders.