Work with Python (C++, Rust, or Go for latency-critical paths), AWS, Terraform, PostgreSQL/TimescaleDB, Kafka, Redis, ClickHouse, and Grafana/Prometheus/Loki. You own the production infrastructure for a stealth systematic trading and AI research lab building low-latency decision engines that operate in live markets.

LMAX Group★0.0· London

Develop high-performance data pipelines and real-time streaming systems using Python, Terraform, Ansible, Kubernetes, Kafka, and SQL. You will build and scale data infrastructure to support business intelligence initiatives for LMAX's Forex and digital currency trading platforms.

You will use .NET C#, LINQ, MS SQL, Entity Framework, GIT, REST APIs, Docker, and Agile methodologies to design, build, and debug web and mobile applications. You will join the TransPerfect TechOps team, which delivers the company's GlobalLink platform and related client interfaces.

You will work with Rust, Python, Java, Go, C++, and a distributed systems stack involving edge computing, low-bandwidth radio links, and air-gapped networks. This company builds AI software that turns unstructured sensor data into real-time intelligence for semi-autonomous platforms. You will set technical direction across multiple teams.

You'll work with TypeScript, Python, Playwright, Cypress, WebdriverIO, Node.js, Docker, and GitHub Actions/GitLab CI to build and maintain test automation frameworks and CI pipelines for Connected TV devices. You'll join FX Digital's Quality Engineering team, taking ownership of automation platform pieces and mentoring junior engineers—no prior TV experience required.

Meta★4.0 (1.1k)· London

Business Support Engineer supporting Meta's Business Agent, an AI platform helping businesses boost productivity. Work with Python, PHP/Hack, JavaScript/React, REST APIs, SQL, PyTorch, Llama and other LLMs, plus cloud infrastructure (Kubernetes, Docker). Provide engineering support, troubleshoot distributed systems, and build AI solutions from prototype to production.

You'll work with Java, Python, JavaScript and Agile methods to design, build and test software. The Engineering Platforms team delivers a modern software development tools chain for engineers across NatWest Group.

IFS★3.8 (14)· London

Lead/Senior Software Engineer will work with Large Language Models (LLMs), agentic AI, and cloud-native technologies to build production AI systems. The role involves designing, building, and evolving enterprise software within the Enterprise Asset Management team, applying AI to solve complex customer problems at scale.

Work with Snowflake data architecture, SQL, Python pipelines, RESTful APIs, the Microsoft Power Platform, React front ends, and, optionally, ServiceNow, Workday, and Azure services. The Data and Applications team builds analytics, AI-powered tools, and data infrastructure for PJT Partners, a global advisory-focused investment bank.

Build backend databases in SQL Server and Azure, build machine-learning models in Azure, Microsoft Fabric and Alteryx, and develop front-end apps using Python, SQL, C#/.NET and JavaScript for the SMDAM Private Markets team. The role drives private credit data infrastructure end-to-end, extracting insights from text to power deal-sourcing and monitoring across the entire private credit lifecycle.

Work with AWS, Docker, Kubernetes, CI/CD pipelines, infrastructure-as-code, and Python/Go/Ruby/JavaScript. You will support Digital Engagement products and help build the AI Platform at SBS, a global fintech partner for banks and financial institutions.

You will work with Java, SpringBoot microservices, Linux, OpenShift, Gradle, Git, CI/CD, and Docker/Podman. The Technology Application Strategy team builds productivity and tooling solutions to streamline workflows for Citi’s global developer community.

You will use Python, REST APIs, and cloud platforms such as AWS, Kubernetes, Docker, and Helm. As part of the Risk team at a tech-driven quantitative investment manager, you will build and deliver solutions for Risk Management and Trading desks.

A paid DevOps Engineer traineeship covers Linux, Git, CI/CD, Docker, cloud platforms (AWS, Azure, Google Cloud), IaC, scripting, and monitoring through practical projects like building pipelines and managing containers. It targets aspiring DevOps professionals, with no prior experience required.

Work with Java, Spring Boot, React/Angular, RESTful APIs, microservices, Kafka or RabbitMQ, CI/CD, and AI-assisted engineering tools to lead software implementation for Vodafone's cloud-native digital products and platforms. This senior hands-on role guides engineers

Work with Vue.js, React, or Angular, JavaScript, HTML/CSS, and Figma. You will implement features and build reusable UI components for TransPerfect's TechOps team, which delivers workflow tools and client interfaces for the GlobalLink platform.

You'll build end-to-end features for &Dine's food marketplace using Vue.js/Nuxt.js, Node.js, TypeScript, MySQL, Docker, and AWS. The platform connects independent Makers with customers seeking handmade food. You'll be part of a lean engineering team of four, owning from design to deployment and mentoring junior engineers.

You will work with Java, React, and DevOps automation to build scalable, cloud-native applications for critical business services. The role focuses on delivering high-quality software across front-end and back-end technologies in a financial services environment.

You will work with Java, C#, modern cloud and DevOps tools to build scalable, high-performance applications. The team designs and develops these applications in an Agile environment, collaborating across functions.

The role involves developing Salesforce Lightning and Force.com solutions using Apex, SOQL, and JavaScript, with object-oriented programming in Java or C#. Git, Jira, IntelliJ, CI/CD, and Salesforce REST APIs are also mentioned. The position is with Hackajob Ltd, but the listing gives no details on the product or team.

You will work with Java, SQL, REST APIs, event-driven architectures, Angular, and distributed systems. You will lead an existing team of 4 to 6 developers, architecting and integrating systems.

You will work in Java to design, engineer, and maintain the firm’s software infrastructure. Collaborating with research, systems, and operations teams, you will support both new and existing lines of business at this quantitative trading firm.

You will architect pipelines with Spark, Airflow, Kafka, PostgreSQL, MongoDB, and vector databases (Qdrant, Milvus, pgvector) using Python. As the first senior data hire at an early-stage AI company, you lead design of data infrastructure for real-time AI inference. You will build and eventually lead your own data engineering team.

You will work with Java, Spring Boot, SQL, RESTful/streaming APIs, cloud-native microservices, containerization, NoSQL, distributed data stores, and AI/ML-enabled tools. As a Lead Full Stack Engineer at BNY, a global financial services company, you will provide technical leadership, mentor engineers, and design secure, scalable, resilient systems.

Founding Backend Engineer role at a VC-backed collaborative AI startup. You will architect infrastructure for an agentic collaboration platform, owning backend systems using TypeScript, Node.js, and PostgreSQL, and building real-time workflows for enterprise clients.