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LSEG

LSEG

Global financial market infrastructure and data

Application Support Engineer - CDSClear

Full-Time
No salary listed
Junior
London, UK+1 more

More locations: Paris, France

In Person

The role includes late-shift coverage until 10:30 pm London time and out-of-hours on-call duties.

About the job

Requirements
  • Maintain hands-on technical expertise across Unix, SQL, Control-M, web services, and networking technologies.
  • Exposure to Amazon Web Services is advantageous.
Responsibilities
  • Deliver Level 2 information technology support for the CDSClear business across production and test environments.
  • Partner with CDSClear teams to advance the delivery roadmap and actively support non-production environments.
  • Participate in an out-of-hours on-call rota to ensure continuity and resilience of critical clearing services.
  • Support extended clearing operations through a late-shift Site Reliability Engineering rota until 10:30 pm London time.
  • Be responsible for the operational health of CDSClear production and user acceptance testing environments and ensure agreed service levels are met.
  • Lead front-to-back operational support for CDSClear-aligned and non-aligned applications and infrastructure.
  • Build working relationships with CDSClear First Line Risk, Operations, and Customer Success teams to address functional and operational requirements.
  • Align information technology teams with business and production events and ensure required activities are identified, planned, and performed.
  • Own and maintain standard operating procedures before, during, and after daily clearing sessions.
  • Run CDSClear test environments, including IUA and EUA, and ensure availability, performance, and stability targets are met.
  • Supervise CDSClear IT Support team activity and optimize workload allocation across business-as-usual support, project work, shift coverage, on-call duties, and business events.
  • Coordinate and implement disaster recovery testing in compliance with business continuity and resilience standards.
  • Lead incident management activities, including escalation, cross-team coordination, resolution, and remediation.
  • Own organizational change for CDSClear applications, coordinate delivery schedules, align with the enterprise change calendar, and ensure quality gates are met before deployment.
  • Drive continuous improvement to strengthen production stability and operational efficiency, and contribute to IT change and governance forums.
  • Collaborate with development teams to improve release reliability and automation using the approved LSEG DevOps toolset.
  • Lead capacity and performance management and improve monitoring capabilities so platforms scale with business growth, increased volumes, and new product launches.
  • Coordinate IT risk management activities for the CDSClear information system, including remediation of risk appetite actions and internal audit findings.
  • Act as the primary IT interface to Information Security and ensure application and infrastructure vulnerabilities are identified, prioritized, and remediated.

About the company

LSEG provides global financial market infrastructure and data across the full value chain. It operates through Data & Analytics, FTSE Russell, Risk Intelligence, Capital Markets, and Post Trade, offering data, indices, risk tools, trading, clearing and settlement services, and regulatory support. It differentiates itself by delivering an integrated, end-to-end suite that spans pre-trade analytics to post-trade processing with a global footprint. Its goal is to grow long-term value for shareholders and customers by leveraging its diversified platform and international reach.

Company Size

10,001+

Company Stage

IPO

Headquarters

London, United Kingdom

Founded

1801

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Simplify's Take

What believers are saying

  • H1 2026 income rose 8.4%, and LSEG raised 2026 growth guidance to 7.0-7.5%.
  • Payward partnership brings 100 UK stocks onto xStocks in 2026.
  • LoopFX inside FXall expands LSEG's FX execution value for institutional clients.

What critics are saying

  • FCA probes LSEG's low-latency connectivity; remedies can curb exchange control by 2027.
  • The MayStreet lawsuit keeps acquisition risk and distraction alive through 2026.
  • Kraken and Coinbase 24/7 token trading drains flow from LSEG's Main Market.

What makes LSEG unique

  • LSEG owns data, indices, trading, clearing, and settlement across one stack.
  • H1 2026 subscription ASV grew 6.1%, and retention reached 92.8%.
  • LSE 24 and Digital Securities Depository extend LSEG into tokenized market infrastructure.

Help us improve and share your feedback! Did you find this helpful?

Benefits

Health Insurance

401(k) Retirement Plan

Paid Vacation

Wellness Program

Flexible Work Hours

Remote Work Options

Growth & Insights and Company News

Headcount

6 month growth

13%

1 year growth

13%

2 year growth

13%
The Full FX
Sep 15th, 2026
Loop integrates with FXall.

Loop integrates with FXall. Posted by Colin Lambert. Last updated: September 15, 2026 LoopFX has been integrated with LSEG's FXall trading platform, enabling the latter's client base to access LoopFX within their existing trading workflow, thus extending the liquidity options available. LoopFX is a dark, mid-market matching mechanism that operates on a "P2P2B" basis, whereby client trades are matched with peers if a match is available, but also with bank interest. It is already integrated with FX Connect, FlexTrade and Portware, meaning, Loop observes, that approximately 80% of real money institutional FX participants can now access the service. As is the case with the connectivity to FX Connect, FXall users can access the Loop with two clicks, thus without disrupting their workflow. "Together with our existing connectivity partners, more than 80% of institutional FX participants can now access LoopFX directly within their existing workflows," says Blair Hawthorne, CEO and founder of LoopFX. "This represents an important milestone in broadening access to its liquidity network while making adoption as straightforward as possible for institutional clients. The Full FX'd like to thank the LSEG team for their support and collaboration in bringing this integration with FXall to market and look forward to working together to enable exciting enhancements like embedding LoopFX within automation functionality later in the year," he adds. Simon Jones, head of product and liquidity, LSEG FX, says, "We are delighted to be working with LoopFX to improve execution outcomes for FXall users. Innovations like LoopFX are important for the growth of FX markets. The integration of LoopFX into FXall will help propel its network to the next level and expand the execution options for our institutional customers."

CodeGoTech
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SARB Deputy Governor addresses yield curve dynamics at LSEG Johannesburg forum.

SARB Deputy Governor addresses yield curve dynamics at LSEG Johannesburg forum. South African Reserve Bank Deputy Governor Rashad Cassim delivered a keynote on monetary policy and yield curve dynamics at the LSEG Insight Series in Johannesburg. When a senior central banker takes to the podium at a major international financial data and markets forum, the financial community listens closely - not merely for rhetoric, but for signals. On 24 June 2026, Rashad Cassim, Deputy Governor of the South African Reserve Bank (SARB), delivered a keynote address at the London Stock Exchange Group (LSEG) Insight Series event in Johannesburg - one of the most closely watched regional platforms for institutional dialogue on monetary conditions, fixed-income dynamics, and the trajectory of emerging-market financial policy. The address, subsequently published by the Bank for International Settlements (BIS) on 1 September 2026, placed squarely at its center the interplay between monetary policy, yield curve behavior, and broader financial market conditions. The weight of the yield curve in emerging market context. Few instruments in macroeconomics carry the interpretive burden of the sovereign yield curve. For emerging-market central banks like the SARB, the yield curve is simultaneously a transmission mechanism, a market confidence barometer, and a policy communications tool. When a deputy governor addresses its dynamics in an open, institutionally attended forum, the subtext is rarely trivial. Cassim's choice of the yield curve as a central theme underscores how pressing the question of term-premium behavior and rate expectations has become in the post-pandemic, high-volatility interest rate environment that has characterized global markets through the mid-2020s. South Africa, as a major emerging-market economy with deep and liquid bond markets relative to its regional peers, occupies a distinctive position in global fixed-income portfolios. The country's government bond market attracts significant international participation, making the domestic yield curve acutely sensitive to both global risk appetite and local monetary policy credibility. Cassim's address at the LSEG forum - an event that draws fixed-income practitioners, asset managers, and financial analysts with direct exposure to South African rand-denominated assets - was therefore not merely academic. It was a direct engagement with the market participants who price South African sovereign risk on a daily basis. LSEG as a forum for central bank dialogue. The choice of the LSEG Insight Series as the venue for this address is itself notable. LSEG has, over recent years, expanded its role well beyond its origins as a stock exchange operator into a global financial data, analytics, and market infrastructure powerhouse. Its Insight Series events function as high-caliber institutional convenings that sit at the intersection of market practice and policy. That the SARB elected to use this platform - hosted on home soil in Johannesburg - reflects a deliberate strategy of engaging directly with the financial markets community on questions of monetary transmission and market functioning. This format of central bank outreach carries its own significance. Unlike formal monetary policy committee statements or regulatory consultations, keynote addresses at market forums allow central bankers a degree of analytical latitude. They can explore the mechanics of how policy decisions ripple through yield curves, how market expectations form and sometimes diverge from central bank guidance, and how financial stability considerations interact with the rate-setting mandate. For market participants parsing the SARB's thinking, such speeches often offer some of the richest texture available outside of formal committee communications. BIS publication and the broader significance. The subsequent publication of Cassim's address by the BIS amplifies its reach and institutional weight considerably. The BIS - the so-called "central bank of central banks" headquartered in Basel, Switzerland - curates and disseminates speeches by senior monetary authorities from its member institutions as part of its effort to foster global monetary and financial stability dialogue. When the BIS elects to publish a speech, it enters the corpus of internationally circulated central banking thought, available to policymakers, academics, and market professionals worldwide. The timing of publication - 1 September 2026, some two months after the original Johannesburg address - suggests the BIS treated the speech as a substantive contribution to ongoing discourse on monetary policy transmission and yield curve dynamics, themes that have commanded intense global attention as major central banks navigated the complex process of policy normalization through the mid-2020s. For the SARB, BIS publication represents both validation and visibility, reinforcing the institution's voice in multilateral monetary policy conversations at a moment when emerging-market perspectives carry increasing weight in global forums. What this means for markets and policy watchers. 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Baltic Exchange
Sep 8th, 2026
Freight risk management in the spotlight as Baltic joins LSEG Commodities Forum in Singapore.

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Crypto Reporter
Sep 2nd, 2026
London Stock Exchange takes stocks onto the blockchain.

London Stock Exchange takes stocks onto the blockchain. The London Stock Exchange is taking a major step into blockchain-based markets, planning to offer tokenized versions of U.K. shares as it prepares to launch a new 24-hour trading venue in 2027. London Stock Exchange Group will partner with Payward, the parent company of cryptocurrency exchange Kraken to introduce blockchain-based representations of listed equities, known as xStocks. The tokens will be backed one-for-one by the underlying shares, according to The Wall Street Journal. The initiative is designed to bring some of the features of crypto markets - including round-the-clock access and faster settlement - into regulated equity trading. LSEG plans to begin testing its new LSE 24 platform by the end of 2026, with a full launch targeted for 2027, subject to regulatory approval, according to Reuters. For investors, tokenization could make shares available for trading beyond traditional market hours while allowing transactions to settle more quickly. The exchange is also betting the technology can broaden access to London-listed companies and attract investors already accustomed to digital-asset markets. The move comes as exchanges and financial firms experiment with putting traditional assets on blockchains. LSEG has been developing blockchain-based market infrastructure, while the partnership with Payward brings a major cryptocurrency-market operator directly into its expansion into tokenized securities. LSEG Chief Executive Julia Hoggett said tokenization could transform financial markets, while emphasizing the importance of maintaining trust and regulatory standards as the technology develops. The partnership marks a notable convergence between traditional finance and crypto infrastructure: one of the world's major stock exchanges is preparing to use blockchain technology not simply to create a new asset class, but to reshape how conventional equities are traded and settled.

Yahoo Finance
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London Stock Exchange partners with Kraken to tokenise UK's 100 largest companies

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