145 application support engineer jobs found in London

  The blockchain security team is working on core Blockchain technologies, Smart contracts and other building blocks that allow us to create unique products for our users.  They specialise in secure development, confidential computing technology and advanced cryptographic techniques and with multiple patents granted to this team, this is a key strategic investment for Crypto.com .  It is a unique opportunity to work on the future of this exciting industry.     Responsibilities Primary responsibilities to ensure the application is running at all times in Production. Manages other non-production environments such as pre-production/staging.  Strong understanding of application features and all supported blockchains. Work closely with engineers both application and infrastructure to ensure good understanding of what will be pushed to production environments. Ability to apply fixes, improvements or optimization on the applications and infrastructure. Identify any...

  Responsibilities Ensure maximum uptime for multiple production systems Provide L1/L2 application production support to users for trading, data processing, and IT operations Provide weekend support on a rotational basis and occasional public holiday support  Manage, own and frequently follow-up incidents and requests raised to the team. Monitor and follow up critical system alerts; perform initial diagnosis and potential fix and escalate to the right teams. Assume the role of major incident manager upon major incidents, focusing on coordinating efforts, seeking updates from fellow tech teammates and providing timely updates to all stakeholders. Perform system operation and administration tasks, including checking and monitor multiple systems performance on a daily basis Work closely with internal users and external vendors to investigate and resolve production system issues, and communicate system enhancement /bug fix requirements to multiple engineering...

End Date Thursday 04 December 2025 Salary Range £81,999 - £122,999 We support flexible working – click here for more information on flexible working options Flexible Working Options Hybrid Working, Job Share Job Description Summary . Job Description JOB TITLE: Senior Java Software Engineer LOCATION: London SALARY: £81,999 - £91,110 HOURS: Full-time WORKING PATTERN: Our work style is hybrid, which involves spending at least two days per week, or 40% of our time, at one of our office sites. About the Customer Data Services Platform  We're the team that looks after the customer data for the whole of Lloyds Banking Group. Our mission is to make this data available for the right purpose with the appropriate confidentiality and always ensuring a phenomenal engineering experience based on performance, resilience, and integrity.  The systems we support, underpin almost everything we do as Lloyds Banking Group. We maintain these systems...

Blockchain.com is connecting the world to the future of finance. As the most trusted and fastest-growing global crypto company, it helps millions of people worldwide safely access cryptocurrency. Since its inception in 2011, Blockchain.com has earned the trust of over 90 million wallet holders and more than 40 million verified users, facilitating over $1 trillion in crypto transactions. Blockchain is the world's leading software platform for digital assets. Founded in 2011, we provide the world’s largest and most trusted production blockchain platform, powering more than 75 million wallets. Together with our platform of liquidity and execution services, we share the passion to build an open, accessible and fair financial future, one piece of software at a time. We are looking to hire a Front-End Engineer to join our Institutional team in our London office. Blockchain.com is a high-performance culture marked by fearlessness and hyper productivity. You are a hardworking...

Blockchain.com is connecting the world to the future of finance. As the most trusted and fastest-growing global crypto company, it helps millions of people worldwide safely access cryptocurrency. Since its inception in 2011, Blockchain.com has earned the trust of over 90 million wallet holders and more than 40 million verified users, facilitating over $1 trillion in crypto transactions. Blockchain.com  is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are currently seeking an experienced  C++/Rust Quantitative Software Engineer/Developer. You will be responsible for designing, building and optimizing our electronic trading platform. You will work closely with our  traders to perform various functions, including the development of our core-trading...

Blockchain.com is connecting the world to the future of finance. As the most trusted and fastest-growing global crypto company, it helps millions of people worldwide safely access cryptocurrency. Since its inception in 2011, Blockchain.com has earned the trust of over 90 million wallet holders and more than 40 million verified users, facilitating over $1 trillion in crypto transactions. Blockchain.com is the world's leading software platform for digital assets. Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for a proactive, thorough Senior Software Engineer to help build our Defi platform. You will play a critical role in building financial and crypto-native products, services and APIs. As a Senior Back-End Engineer you should lead by example - driving the technical discussions, influencing the...

Blockchain.com is connecting the world to the future of finance. As the most trusted and fastest-growing global crypto company, it helps millions of people worldwide safely access cryptocurrency. Since its inception in 2011, Blockchain.com has earned the trust of over 90 million wallet holders and more than 40 million verified users, facilitating over $1 trillion in crypto transactions. Blockchain is the world's leading software platform for digital assets. Founded in 2011, we provide the world’s largest and most trusted production blockchain platform, powering more than 75 million wallets. Together with our platform of liquidity and execution services, we share the passion to build an open, accessible and fair financial future, one piece of software at a time. As a Software Engineer on our Cryptocurrency Trading Platform, you will take on a role in shaping the direction of our technology while working closely with the trading team and quantitative analysts (quants). You...

LSEG (London Stock Exchange Group)  is a world-leading  financial markets   infrastructure  and  data  business. We are dedicated, open-access partners with a commitment to excellence in delivering services across  Data & Analytics ,  Capital Markets , and  Post Trade . Backed by three hundred years of experience, innovative technologies, and a team of over  23,000  people in  70  countries, our purpose is driving financial stability, empowering economies, and enabling customers to create sustainable growth. As a Senior Dev Ops engineer you should have a strong background in modern automation tooling and processes as well as experience maintaining clustered applications. Additionally, you should be experienced in owning issues through to completion by working proactively with project teams. Primary Responsibilities: Build code to provision the full stack from infrastructure through to application Deploying, automating, maintaining, and managing DevOps...

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 This is the future of HL - and the future of investing. We’re building the next generation of platform for one of the UK’s largest financial services companies, trusted by over 1.8 million clients and managing £130+ billion in assets. This is your opportunity to shape technology that will redefine how people invest and achieve financial freedom. All development within Core Wealth Services is greenfield. That means a clean slate - the chance to design, architect and build from the...

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role We’re looking for Forward Deployed Infrastructure Engineers who can help us build, operate, and maintain high-performance, scalable, and reliable services for Palantir platforms, products, and deployments. You'll get to use your creativity to develop novel solutions to evolving challenges and automate processes wherever possible, using whichever tools are best for the job including industry-leading LLM and AI technology! As a Forward Deployed Infrastructure Engineer, every day is different! You will be developing software and providing high-quality support for software systems that are critical to solving our government’s greatest challenges. We strongly...

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, and two years 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. This SaaS 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. As a company, everyone is expected to roll up their sleeves to help deliver great outcomes for our clients. We are an engineering led company and we’re looking for people who are will be excited by the potential for Engine’s technology to...

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 Bank 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. This SaaS 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...

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, and two years 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. This SaaS 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. As a company, everyone is expected to roll up their sleeves to help deliver great outcomes for our clients. We are an engineering led company and we’re looking for people who are will be excited by the potential for Engine’s technology to...

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, and two years 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. This SaaS 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. As a company, everyone is expected to roll up their sleeves to help deliver great outcomes for our clients. We are an engineering led company and we’re looking for people who are will be excited by the potential for Engine’s technology to...

About the Role: Grade Level (for internal use): 09 About the Role:   Grade Level (for internal use):   09   The Location: London, Uni ted Kingdom   S&P Global Ratings is looking for a highly motivated, enthusiastic and skilled senior developer to join Commercial Desktop team within Commercial Engineering , a team of technology professionals who define and execute the strategic roadmap for S&P Global Ratings Commercial team . The successful candidate will participate in the design and development of Commercial Desktop platform to help improve commercial workflows and overall productivity.   The Team : Join the Rating Organization’s Commercial Desktop Engineering Team, known for its expertise in commercial workflow s and various technology stacks. This team values knowledge sharing, collaboration, and a unified strategy to build S&P Ratings'...

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Forward Deployed Enablement Engineers are embedded with centralised customer success teams to maximise the outcomes of our deployed products and workflows across all commercial customers from small-scale start-ups to large enterprises. This role balances high-level support responsibilities with the development of innovative tooling and infrastructure to scale customer enablement effectively. You are a resourceful, gritty and adaptable problem solver who is able to work both collaboratively and independently to resolve difficult and nebulous technical issues, as well as work productively with external customers to debug and resolve their problems....

ABOUT US: 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 dedication to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, manage risk and create jobs. It’s how we’ve contributed to supporting the financial stability and growth of communities and economies globally for more than 300 years. Through a comprehensive suite of trusted financial market infrastructure services – and our open-access model – we provide the flexibility, stability and trust that enable our customers to pursue their ambitions with confidence and clarity.   LSEG is headquartered in the United Kingdom, with significant operations in 70 countries across EMEA, North America, Latin America and Asia Pacific. We...

End Date Tuesday 21 October 2025 Salary Range £81,999 - £91,110 We support flexible working – click here for more information on flexible working options Flexible Working Options Hybrid Working Job Description Summary . Job Description JOB TITLE: Senior Site Reliability Engineer SALARY: £81,999 - £91,110 per annum LOCATION: London  HOURS: Full-time  WORKING PATTERN: Our work style is hybrid, which involves spending at least two days per week, or 40% of our time, at one of our office sites Join our Payments Lab team as a Senior Site Reliability Engineer and help shape the future of retail banking as we undergo the largest transformation in the UK banking industry.  About this opportunity The Payments Lab team is at the heart of retail banking innovation, delivering new initiatives such as Request a Payment and enabling cash deposits at your local pay point store. As part of the Consumer Servicing & Engagement (CS&E)...

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Are you passionate about engineering quality, performance, and increasing the impact of engineers around you? Software Engineers at Palantir build software at scale to transform how organisations around the world use data. As an engineer within Palantir’s Foundations organisation, you’ll have the opportunity to grow more quickly than you ever imagined, as you build the shared infrastructure that underpins the Palantir Foundry, Palantir Gotham, and Palantir Apollo platforms, and drive investments to improve the velocity and quality of our engineering. Teams within Palantir’s Foundations organisation are made up of a small number of engineers, each...

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Are you passionate about engineering quality, performance, and increasing the impact of engineers around you? Software Engineers at Palantir build software at scale to transform how organisations around the world use data. As an engineer within Palantir’s Foundations organisation, you’ll have the opportunity to grow more quickly than you ever imagined, as you build the shared infrastructure that underpins the Palantir Foundry, Palantir Gotham, and Palantir Apollo platforms, and drive investments to improve the velocity and quality of our engineering. Teams within Palantir’s Foundations organisation are made up of a small number of engineers, each...

About Us The Financial Times is one of the world’s leading news organisations, globally recognised for its authority, integrity and accuracy, with a mission to deliver quality information and services worldwide. At the FT, curiosity thrives and ambitious thinking is rewarded. Here, you’re given the chance to reach millions, create work that matters and deliver impartial journalism in a polarised world. In our warm, collaborative culture, you’ll connect with a diverse community of experts who support your growth, career aspirations and wellbeing. Your future at the FT will be filled with opportunities that challenge and inspire you. With no fixed path, you’ll discover new skills and forge a career that can take you anywhere. Build a newsworthy career at the FT. Our Commitment to Diversity, Equity and Inclusion We believe in the power of unique perspectives and want all voices in our organisation to be heard, respected and valued. A supportive workplace is one where...

About Us The Financial Times is one of the world’s leading news organisations, globally recognised for its authority, integrity and accuracy, with a mission to deliver quality information and services worldwide. At the FT, curiosity thrives and ambitious thinking is rewarded. Together, we help audiences stay better informed and deepen their understanding of the world around them. Our Product & Tech teams drive us forward in an ever-evolving digital landscape, delivering cutting-edge products to over one million digital subscribers daily. Our growth relies on a diverse, dedicated and dynamic group of product, tech, delivery and data specialists. With a supportive culture, entrepreneurial spirit and opportunities at every turn, there are no limits to where your FT career can take you. Build a newsworthy career at the FT. Our commitment to diversity, equity and inclusion  We believe in the power of unique perspectives and want all voices in our organisation to...

At Ripple, we’re building a world where value moves like information does today. It’s big, it’s bold, and we’re already doing it. Through our crypto solutions for financial institutions, businesses, governments and developers, we are improving the global financial system and creating greater economic fairness and opportunity for more people, in more places around the world. And we get to do the best work of our career and grow our skills surrounded by colleagues who have our backs.  If you’re ready to see your impact and unlock incredible career growth opportunities, join us, and build real world value. At Ripple, we’re building a world where value moves like information does today. It’s big, it’s bold, and we’re already doing it. Through our crypto solutions for financial institutions, businesses, governments and developers, we are improving the global financial system and creating greater economic fairness and opportunity for more people, in more places around the world....

LSEG and Microsoft have entered an exciting strategic partnership for the development of next-generation data, analytics and cloud infrastructure solutions. Our customers’ needs are evolving and so are financial markets. This partnership will transform the way customers discover, analyse and trade securities around the world. It will also advance our cloud strategy and build the improved resilience, efficiency and agility that our customers need. All of Microsoft’s customers will also have access to our data and analytics capabilities through a single flexible infrastructure that is intuitive and responsive. If you are interested in being a part of this dynamic strategic partnership, we look forward to considering your skills and experience. ROLE PROFILE: The Tech Lead, Quantitative Analytics Engineering role will manage a group of quantitative analytics application developers and consulting partnerships to design, build and deliver Analytics product solutions for a global...