Full Stack Engineer – Pricing & Analytics Key Technologies: Full Stack development in Svelte, React, Python, AWS Cloud Technology, Server Side, JavaScript, HTML5, CSS3, Redux, ML (Machine Learning), AI, Kafka, NoSQL, Postgres Location: London City - Front Office Trading Rate: £800 - £950 Per day (inside IR35) A leading Investment Management firm in the heart of the City of London is actively seeking a talented Full Stack Engineer to join their Front Office Trading and Analytics Team. This role involves working on cutting-edge Front office trading applications and screens used by Traders and Sales professionals. The Role: React and Svelte Development: Drive the development of the next generation of Front Office Trading applications, focusing on Pricing, Risk, Analytics, and Real-Time trading Apps, with an emphasis on React and Svelte technologies. UI Functionality: Lead the creation of new UI functions for the Trading platform, emphasizing React and Svelte expertise. Greenfield Development: Undertake Greenfield Development across multiple client-side websites, with a specific focus on React and Svelte frameworks. The Person: React and Svelte Expertise: Showcase expertise in React and Svelte, along with a strong command of JavaScript and its ecosystems. Full Stack Proficiency: Demonstrate Full Stack proficiency with a focus on React and Svelte, along with Cloud Technology: Proficient in Cloud Technologies, especially AWS, coupled with server-side development. AI Interest or Experience: Show interest or experience with AI technologies. Autonomous Role: Exhibit passion for working independently and implementing new technologies. Front Office Trading: Demonstrate interest or experience in Front Office Trading operations. This is a long-term contract offering the opportunity to work with one of the premier Investment Management Firms in Central London. The role involves collaboration with a dynamic Front Office Development team, providing the chance to work alongside intelligent engineers on the development of cutting-edge front office real-time trading systems. Please apply quickly via the link provided or email Barry.Ansell@HarringtonStarr.com

Explore the forefront of financial technology with a leader in AI-driven quantitative backtesting software. You’ll join a team dedicated to pushing the boundaries of what’s possible in the trading world, using innovation to drive real results. Python AI/API Engineer – London What you will do Maintain and develop the AI offering, pioneering innovative approaches to achieve the company's vision. For example, integrating cutting-edge AI models or developing new analytical tools. Work alongside Engineers, UX & Quant Teams to develop new features for the AI and analytical services, whilst still maintaining existing functionality. Take ownership and responsibility for our product, including leading projects and participating in code reviews. Keep abreast of new & developing technologies - championing/incorporating when appropriate. What you’ll need to succeed Minimum of 3+ years of experience with Python and major cloud providers (AWS, Azure, or GCP). Proven experience in building Rest APIs with frameworks such as Flask/FastAPI. Strong Experience in software development best practices: CI, Testing, Deployment. Proficiency in the Linux ecosystem. Experience with databases such as Postgres and Redis. Strong interest in finance and AI. Excellent communication skills, self-starter, logical thinker, and quick learner. If you're ready to contribute to pioneering solutions that shape the future of finance, we want to hear from you. Contact Ciara Clarke for a confidential discussion on this role.

Quantitative Developer Competitive Salary Competitive Bonus My client are looking for skilled quantitative developers to join their innovative team in the high-frequency trading (HFT) sector. To be successful you will have at least one year of experience in HFT, working with Java and strong software development skills including TCP, UDP, multicast, WebSocket, and HTTP. As a quantitative developer, your mission will be to enhance the trading infrastructure, making the strategies more competitive and profitable. This involves optimizing the latency of the trading platform and improving execution scalability and precision. Key Responsibilities: Develop and refine a low-latency trading engine and strategy runtime. Create a market data distribution platform using internal protocols. Automate deployment and monitoring for our 24/7 trading system. Profile and analyze trading system latency. You will collaborate with a small, agile team, sharing responsibility for the entire trading stack. This environment allows for rapid iterations and frequent deployments, enabling swift responses to market changes. Qualifications: Proficiency in low-latency Java or C++ development. Strong performance optimization skills in on-premise and cloud environments. Passion for learning new technologies and solving complex problems.

Platform Engineer – AWS/Python/Terraform/Docker Company Overview Join a leading global brokerage in the heart of London and drive innovation. The Platform Engineering team seeks an ambitious Engineer specializing in AWS, Python, Terraform, Git for CI/CD, and Docker to create a cutting-edge platform for rapid, reliable software development and deployment. What's In It For You Global Brokerage: Join a dynamic team at a top brokerage. Continuous Learning: Access paid training for professional growth. Work-Life Balance: Flexible work arrangements, with 2 days in the Liverpool Street office. Competitive Salary: Collaboration: Work closely with development teams on monitoring metrics and CI/CD pipeline development. Benefits Package: Includes pension (up to 6% matched), private family health coverage, life insurance, and long-term sick cover. Exciting Projects: Engage in complex, challenging projects. Role Responsibilities System Management: Monitor and manage AWS-focused systems and infrastructure. Platform Operations: Build and maintain a platform for cloud and on-premise application provisioning and operation. Configuration and Maintenance: Install, configure, test, and maintain operating systems, software, and infrastructure tools. CI/CD Development: Develop a continuous integration and deployment platform integrated with development tools. Developer Experience: Enhance developer experience in cloud infrastructure and application deployment. Policy and Guidelines: Develop policies, standards, and guidelines for Infrastructure as Code (IAC) and CI/CD processes. Automation: Implement workflow and toolchain improvements for task automation. Required Skills and Experience Experience: Minimum 4 years in a professional Platform Engineering role. Cloud Proficiency: Securely deploy and manage AWS or Azure applications, with cloud-native tooling and security best practices. Scripting Skills: Proficiency in Python. Docker Proficiency: Experience with Docker containerization for software deployment and scalability. CI/CD Expertise: Automate software build, test, and deployment pipelines following agile methodologies. Terraform Exposure: Beneficial experience with Terraform. Learn More For more information, contact George Harris at Harrington Starr for a confidential conversation, or click "Apply" to start your application. Join an ambitious team and shape the future of software development with AWS, Python, Terraform, Git for CI/CD, and Docker.

Position: DevOps Engineer Location: Cannon Street Hybrid: 3 days in the office 2 from home Company: Financial Exchange Type & Salary: Competitive basic salary + benefits + bonus About the Company: an innovator in financial markets, offering subscription-based stock exchanges, advanced trading technology, and a regulated stock market for growth and established businesses. Its divisions focus on pan-European equity trading, licensing next-generation exchange technology, and providing capital solutions for companies through listings and trading. Responsibilities: Maintain existing infrastructure and design new cloud and on-premise solutions. Develop automated global cloud infrastructure using Infrastructure as Code (Terraform). Improve automation for cloud and on-premise processes using tools like Ansible and Python. Work with development teams to implement and optimise new technologies and workflows. Collaborate on architectural design and cloud best practices with DevOps and infrastructure teams. Support development and operations teams with build servers, virtual environments, and CI/CD pipelines. Assist with Linux deployments, including software, OS, and hardware configuration management using tools like Ansible and Terraform. Plan for system capacity and maintain scalable environments for development, testing, and production. Prepare and maintain accurate and comprehensive documentation. Must have technical experience: Over 4 years designing, building, and managing multi-account AWS and/or GCP systems. Extensive general DevOps expertise, including CI/CD pipelines, deployment strategies, monitoring, and automation. 4+ years in system administration within RedHat/CentOS-based environments. Proficiency in automation tools and scripting languages such as Python, Bash, Ansible, and Terraform. Proven experience with build, release, and version control systems like Git and GitLab. Benefits: Competitive salary and benefits package. Opportunity to work with cutting-edge technology. Collaborative and innovative work environment. Professional growth and development opportunities. Please reach out to george.harris@harringtonstarr.com to find out further details.

C#/.NET Developer Location: London - 3 days in office] Pay rate: £400 per day (£350-£400) Looking for an exciting opportunity to showcase your expertise in C#/.NET development? Join our dynamic team and play a key role in delivering high-quality applications that drive business outcomes. Main Responsibilities: Collaborate with business stakeholders to understand and translate requirements into functional application designs. Develop and maintain applications using Visual C#.NET, working with both Oracle and SQL Server databases. Conduct business data analysis, unit testing, quality assurance, and support for production and disaster recovery environments. Provide ongoing support for existing C#/.NET applications, ensuring operational stability. Work closely with the IT department to maintain the banking business application environments. Follow Change Management Control procedures to ensure proper approvals are obtained for production updates. Other Responsibilities: Define database objects and coordinate with SQL and Oracle Database Administrators in London and New York. Write scripts in T-SQL (SQL Server) and PL/SQL (Oracle) for database queries to support business data analysis. Set up system distribution methods for Citrix and application servers for web and Windows applications. Troubleshoot internal systems, addressing issues like code fixes and SQL scripting, while collaborating with teams in London and New York. Maintain the MS .NET Framework and MS Visual .NET platform, ensuring necessary changes to existing systems are deployed smoothly. Liaise with development, technical support, network, infrastructure, and DBA teams when system problems arise. Assist with the coordination of application rollouts and maintain a comprehensive change history. Provide weekday and occasional weekend out-of-office support when necessary. What We’re Looking For: Proficiency in Visual C#.NET, with strong experience in Oracle and SQL Server databases. Solid background in application design, development, and support. Experience in troubleshooting and maintaining production environments. Strong teamwork and communication skills, with experience working across multiple teams and locations. Knowledge of Citrix, T-SQL, PL/SQL, and application server management is a plus. Ready to take your career to the next level? Apply now!