21 principal software engineer jobs found

Excited to grow your career? Our purpose is to make it easy for people to save and invest for a better future. We are looking for great people to join us, so please come and invest in YOUR future at Hargreaves Lansdown. We know that sometimes people can be put off applying for a job if they don't tick every box. If you're excited about working for us and have most of the skills or experience we're looking for, please go ahead and apply. We’d love to hear from you! About the role Salary: Up to £95,000 dependent on experience (generous benefits package on top) Join HL – Where Your Talent Shapes the Future of Investing At Hargreaves Lansdown (HL), we’re more than the UK’s number 1 investment platform for private investors – we’re innovators, problem‑solvers and changemakers, helping over 1.8 million clients save and invest with confidence. For more than 40 years, we’ve transformed how people engage with their money, combining cutting‑edge technology with...

Excited to grow your career? Our purpose is to make it easy for people to save and invest for a better future. We are looking for great people to join us, so please come and invest in YOUR future at Hargreaves Lansdown. We know that sometimes people can be put off applying for a job if they don't tick every box. If you're excited about working for us and have most of the skills or experience we're looking for, please go ahead and apply. We’d love to hear from you! About the role About HL and the opportunity. We’re building the next generation platform for one of the UK’s largest financial services companies, trusted by over 2 million clients and managing c.£150 billion in assets. This is your opportunity to shape technology that will redefine how people invest and achieve financial freedom. You will build our next generation Unified Client Experience (UCX) frontend that will streamline client journeys across a range of products and services, in both web and...

Join LSEG’s World-Check Risk Intelligence Team Empowering due diligence with trusted data and cutting-edge technology. World-Check Risk Intelligence provides accurate, reliable information and powerful tools to support compliance with due diligence obligations, including Know Your Customer (KYC) screening and anti-money laundering (AML) requirements. We are seeking a visionary   Principal Software Engineer  to lead the design and development of scalable, high-performance software solutions in   World-Check Content Curation Platform . This role is ideal for a seasoned technologist who thrives in complex environments, drives innovation, and mentors engineering teams to deliver world-class products. You will play a critical role in shaping our technical strategy and implementation, engineering best practices, and engineering culture. At LSEG, we prioritize equal opportunity and are committed to building diverse teams that foster collaboration and innovation....

Join LSEG’s World-Check Risk Intelligence Team Empowering due diligence with trusted data and cutting-edge technology. World-Check Risk Intelligence provides accurate, reliable information and powerful tools to support compliance with due diligence obligations, including Know Your Customer (KYC) screening and anti-money laundering (AML) requirements. We are seeking a visionary Senior Principal Software Engineer to lead the design and development of scalable, high-performance software solutions in World-Check Content Curation Platform . This role is ideal for a seasoned technologist who thrives in complex environments, drives innovation, and mentors engineering teams to deliver world-class products. You will play a critical role in shaping our technical strategy and implementation, engineering best practices, and engineering culture. At LSEG, we prioritize equal opportunity and are committed to building diverse teams that foster collaboration and innovation. Key...

Role profile:   Are you an experienced software engineer with a passion for productioni z ing data science solutions? Do you want to build innovative products for financial professionals using cutting edge tech ? If so, we’d love to talk to you.    Role summary:   You will be working for a growing organization.   You will develop of high-impact, scalable AI solutions.   You will combine strategic thinking, strong problem-solving skills, and a collaborative approach to ensure your team successfully ships great products .    What you'll be doing:   Design and development of scalable software products .   Solve complex technical issues, optimize workflows, and provide strategic insights to partners to support project goals and timelines.    Collaborate closely with Data Science , research and product teams    Set high technical standards   This is a hands-on, individual...

As a Principal Software Engineer reporting to the VP of Engineering, you’ll play a critical role in supporting and enhancing the trading systems used for running the US Equities Markets. Initially, the primary responsibility be focused with working on the two Trade Reporting Facilities (TRFs) run by NASDAQ. Over time, however, the role is expected to grow into broader support of both the exchanges and the routing systems managed by NASDAQ. You’ll thrive in this position if you’re collaborative, data-driven, love solving technical challenges, and have a passion for both technology and learning the business-needs driving the changes of the US Financial markets. Key Responsibilities Work with business teams to design enhancements to the NASDAQ trading systems Work with engineering teams to design performance, capacity, and infrastructure improvements along Rearchitect solutions to remove technical debt Develop, test, and deploy these enhancements Guide QA and train...

Lab49  is an award-winning specialist consultancy that  creates bespoke technology  in partnership with the most important companies in finance. We were founded in 2002 to bring Silicon Valley solutions to Wall Street’s door. Since then, we have worked on successive waves of technological change, including distributed computing, high-speed automation, enterprise UX and digital distribution (for which Lab49 was among the first significant practices established on Wall Street), DevOps, cloud and data science. Today, we are an established partner in financial markets, having delivered hundreds of projects for clients including all the world’s tier-one investment banks and many of the largest buy-side firms globally. Being part of Lab49 means bringing your drive and creativity into an environment where your contributions will make immediate impact. Engineers will work in cross functional teams, consulting directly with our clients, shaping not only technical solutions to...

Ready to be pushed beyond what you think you’re capable of? At Coinbase, our mission is to increase economic freedom in the world. It’s a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform — and with it, the future global financial system. To achieve our mission, we’re seeking a very specific candidate. We want someone who is passionate about our mission and who believes in the power of crypto and blockchain technology to update the financial system. We want someone who is eager to leave their mark on the world, who relishes the pressure and privilege of working with high caliber colleagues, and who actively seeks feedback to keep leveling up. We want someone who will run towards, not away from, solving the company’s hardest problems. Our work culture is intense and isn’t for everyone. But if you want to build the future alongside others who excel in their disciplines and expect the same from you, there’s no...

Job Description: Position Title: Principal Back-end Software Engineer - Real-Time Portfolio Risk Analytics C#/.NET Department: Systems Development Division:  Cboe Data Vantage Location: Flex/Hybrid - Chicago office Position Summary: Cboe Data Vantage is seeking a highly skilled Principal Software Engineer to lead the re-architecture and modernization of our real-time Portfolio Risk Analytics system. This is a critical role for an experienced engineer with a strong background in C#/.NET back-end development and expertise in the equity and index options industry. The system processes real-time market data, reference data, and positions updates to generate risk metrics and projected scenarios, powering critical decision-making tools. As a Principal Engineer, you will play a key role in rearchitecting the existing system to make it more scalable, supportable, and performant, while also supporting and optimizing the current system during the transition....

LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a commitment to excellence in delivering the services our customers expect from us. LSEG Data & Analytics team is seeking a highly technical, hands-on Java developer. Our group is focused on bringing a new level of efficiency, transparency and openness to the trading process by building a collaborative community of investors, brokers, technology firms and content providers. Through our modular, end-to-end trade management platform, users can: execute everything from simple single stock trades to complex strategies across markets and time zones and manage their risk throughout the trade lifecycle; access our growing network of execution brokers to route Equities, Futures or Options orders globally, as well as dozens of integrated prime and clearing brokers through our growing suite of middle office tools; and...

Implements the software development strategy for a set of Technology Products and applies business requirements and knowledge of software development lifecycles to guide the development of complex software products or customer solutions. Role Responsibilities & Key Accountabilities: - Demonstrates an extensive knowledge of technologies and/or thought leadership level of a technology, providing direction, mentoring and advising others on design, development and / or implementation best practice and processes - Leads projects and promotes an inclusive and open culture - Continues to build and demonstrates a breadth of knowledge of various domains within technology, understanding the linkages and dependencies of projects/work and the key senior stakeholders - Creates and implements technical solution designs and resolves issues - Supports technical roadmaps for the timely implementation of a technical solution strategy - Advises stakeholders internally as a software...

Designs and develops information technology solutions for internal or external clients, which may include systems strategy, development and/or integration services. May also complete consulting projects with external clients in the area of technology strategy, information systems security, data strategy, systems architecture, custom systems development, new installation and migrations of function/business area applications, application integration web, IP and online solutions and networking. Designs, codes, tests and/or customizes solutions to meet client requirements. May support systems infrastructure, desktop or network architects by preparing detailed specifications. Develops new technology product ideas or strategic product extensions into a commercial product. Establishes technology product specifications, and collaborates with various functions to ensure successful product development and implementation. Provides strategic input/guidance to teams working with...

About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company.  We realize people do not fit into neat boxes. We are looking for curious and empathetic individuals who are committed to developing themselves and learning new...

About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company.  We realize people do not fit into neat boxes. We are looking for curious and empathetic individuals who are committed to developing themselves and learning new...

Job Description: Building trusted markets — powered by our people     At Cboe Global Markets, we inspire our people to solve complex challenges together because what we do matters. We provide the financial infrastructure that powers the global economy. As a leading provider of market infrastructure and tradable products, Cboe delivers cutting-edge trading, clearing and investment solutions to market participants around the world.    We’re building meaningful ways to support professional and personal development while strengthening the trust we’ve earned as a global market leader. Our teams are empowered to share ideas, actively pursue them and bring on a challenge. As champions of internal mobility and access to opportunity, we encourage our people to “go for it” and equip our managers with the training to coach their teams to the next level. We strive to provide employees a safe space to network, share ideas and create opportunities....

At Engine by Starling , we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology.  Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to power Starling Bank, and a year ago we split out as a separate business.  Starling has seen exceptional growth and success, and a large part of that is down to the fact that we have built our own modern technology from the ground up. The Engine technology platform is now available to banks and financial institutions all around the world, enabling them to benefit from the innovative digital features, and efficient back-office processes that has helped achieve Starling's success. Our technologists are at the very heart of Engine and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We operate a...

Lab49 is an award winning specialist consultancy that  creates bespoke technology  in partnership with the most important companies in finance. We were founded in 2002 to bring Silicon Valley solutions to Wall Street’s door. Since then, we have worked on successive waves of technological change, including distributed computing, high-speed automation, enterprise UX and digital distribution (for which Lab49 was among the first significant practices established on Wall Street), DevOps, cloud and data science. Today, we are an established partner in financial markets, having delivered hundreds of projects for clients including all the world’s tier-one investment banks and many of the largest buy-side firms globally. Being part of Lab49 means bringing your drive and creativity into an environment where your contributions will make immediate impact. Engineers will work in cross functional teams, consulting directly with our clients, shaping not only technical solutions to...

Lab49 seeking an experienced Principal .NET Developer with a primary focus in back-end technologies such as   C#/.NET. This is a unique opportunity to elevate your career and gain unparalleled experience in one of the world's most dynamic business hubs.    As a Principal .NET Developer at Lab49, you will be at the forefront of driving transformative change for our esteemed Financial Services clients. Operating within an Agile environment, you will tackle complex and challenging projects, leveraging your robust experience in front-end frameworks to design and construct the next generation of technology solutions.    Required Skills and Experience: 10+ years of commercial-grade web development experience.    5+ years of solid hands-on experience in either functional coding in .NET development.  Collaborate with designers and other partners to provide input on design & wireframing.    Experience with Agile development methodologies.    Experience in...

Role Profile The successful candidate for the TradeAgent Senior Developer role, reporting to the TradeAgent Director of Technical Solutions & Delivery, will form part of a team building a complex, ground-up cloud-based critical market infrastructure service in a bold new venture for LSEG.  This exciting opportunity requires a candidate who takes great pride in delivering excellence with excellent logical and technical skills and a can-do attitude combined with a helpful mentality, and a wish to play a critical role in forming and growing a new business. Key Responsibilities Build, deliver and maintain the multiple components of the Trade Agent platform ensuring timely delivery of work items. Resolve a high impact problem through in-depth evaluation of sophisticated architectures, business processes and industry standards. Serve as advisor to develop highly resilient and future proof solutions. Contribute to research and suggest for new projects for the Trade Agent...

About Lab49: Lab49 is a global consultancy specializing in designing and building next-generation digital products for leading investment banks, asset managers, hedge funds, and fintech innovators. We bring together strategy, design, and engineering to help our clients transform their businesses and stay ahead of the curve in a rapidly evolving landscape. The Role We are seeking a  Lead Data Scientist  to join our team and drive advanced data science solutions for one of our clients. This is a client-facing leadership role, blending deep technical expertise with the ability to advise stakeholders, shape data strategies, and guide teams to deliver high-impact outcomes. You’ll work on cutting-edge problems in data analytics, machine learning, and predictive modeling, helping the client unlock the value of their data and enhance decision-making capabilities.   Responsibilities: Partner with stakeholders to define data science opportunities, shape problem...

The Role: As a Senior Software Engineer, you will play a crucial role in designing, developing, and maintaining our commodity/energy production, trading, and logistics products, in an agile environment. You will be responsible for collaborating with cross-functional teams, developers, product managers to deliver high-quality software solutions. You are expected to implement best practices in coding, testing, and deployment, ensuring scalability, performance, and security. Strong problem-solving skills, excellent communication, and the ability to adapt to new challenges in a fast-paced environment is essential for this role.   Key Responsibilities Design and develop software utilizing common coding standards and design patterns for API’s and interfaces in a variety of languages - C/C++, Java and/or C# Diagnose and debug new and existing software as part of our extensive trading system using Microsoft Visual Studio and other modern debugging tools Interact with the...