application support developer jobs in Old Windsor

Application Support Analyst Slough | Up to £40,000 + Benefits Scroll down the page to see all associated job requirements, and any responsibilities successful candidates can expect. Join a leading UK retailer where technology underpins every aspect of customer experience and business performance. In this role, you’ll take ownership of application operations across core business systems,...

You will work closely with users across portfolio management, trading, compliance, and operations, helping to resolve issues, optimise workflows, and deliver technical solutions that drive business efficiency. The ideal candidate will have hands-on experience supporting front-office investment systems such as Charles River, BlackRock Aladdin, SimCorp Dimension, Thinkfolio, or similar platforms.

About the Role We’re looking for a hands-on Application Support Engineer to join our tech team at a digital asset firm. You’ll support high-performance trading and data systems, troubleshoot issues, collaborate with developers, and improve operational processes. This is a hands-on role that allows you to dig deep, including at the code level. Key Responsibilities - Monitor and manage...

Would you like to join a cyber security SaaS company at the forefront of vulnerability scanning and security research? Do you have experience in a software support role for a SaaS or digital product company, along with strong experience web app and infrastructure technologies? If so, please read on and apply. About AppCheck: AppCheck develops information security software for its end-user...

Application Support Engineer Location: London | Hybrid Get To Know Us: SS&C Calastone Calastone is the largest global funds network, connecting the world’s leading financial organisations. Our mission is to reduce complexity, risk and costs, enabling the industry to deliver greater value to investors. 4,500 clients in 57 countries and territories benefit from Calastone’s services, processing...

Application Support Analyst - Hybrid Role - London - Trading - £60,000 - £70,000 Harrington Starr is proud to partner with a leading Trading firm in London, offering an exciting opportunity for an Application Support Analyst to join their dynamic support team. This role is ideal for a support professional with strong technical and business acumen, excellent communication skills, and a passion...

Express Recruitment are delighted to representing a global ERP supplier who are looking for a Salesforce Administrator who possesses proven application support experience to join their growing team of Salesforce professionals on a permanent basis with the option of working hybrid or remotely (locally based candidates will be required to visit Lincoln or London offices on occasions). The...

Site Reliability Engineer – Tier-One Quantitative Fund | LDN (Hybrid) Salary: £170,000 + Bonus/Perks An elite, tech-driven trading firm widely regarded as one of the most selective and innovative in the space is expanding its high-performance Application Support team in London. This is not your typical support role. You’ll be joining a small, tight-knit team where your impact is felt...

Application Support Analyst - City - 6 months contract - Inside IR35 Application Support Analyst urgently required by a leading financial services firm in the City. Core part of the role is and resolving tickets tied to legacy applications - VB.NET, SQL, C#. Key Responsibilities - First point of contact for legacy system issues—triaging, updating, and resolving support tickets - Investigate...

Application Support Lead 🧑💻- Payments & FX 🧠-SQL & Scripting 🛠- Up to £95,000 + Bonus and Benefits 💷 -Permanent 🏢– London📍 An established Asset Manager is seeking a proactive Application Support Analyst to join their Front Office technology function. This is a hands-on role supporting business-critical trading and investment systems, where you’ll work closely with portfolio managers, traders,...

Trade Application Support Engineer Location: London Experience: 1–7 Years Industry: Market Making / Proprietary Trading / Capital Markets **Applicants who come from should come from a buy side / trading / capital markets environment will be given strong preference** Responsibilities - Act as the first point of escalation for any technical issues arising from the trading system - Manage...

You will work as part of an award-winning global support team to solve problems and respond to clients’ requirements.

We’re looking for an experienced Senior Application Support Engineer to join a growing IT team and play a key role in supporting critical business applications across a modern and complex technology stack. In this role, you’ll be responsible for: - Investigating and resolving technical incidents, ensuring minimal downtime and effective root cause analysis - Proactively maintaining and...

You will manage a skilled support team, ensure SLA compliance, and act as the escalation point for major incidents, while contributing to the bank’s wider technology strategy.

You should have significant experience leading application support teams in financial services, ideally investment banking, with strong technical knowledge of enterprise applications, databases, and integration technologies.

Application Support Engineer (Front Office) Location: London – 5 Days in Office Salary: £45,000 - £50,000 + Bonus About the Company Our client is a leading international financial services organisation with a strong presence in global markets. They offer a dynamic, collaborative environment where technology and business intersect to deliver innovative, high-performance solutions. The...

You will be responsible for managing the support of business critical applications including management of a team of technical experts. The role has a broad remit including responsibility for the operation of strategic applications, project delivery and contribution to the broader IT strategy.

Application Support Engineer (Trading Applications) Location: London – 5 Days in Office Salary: £70,000 - £80,000 + Bonus About the Company Our client is a leading international financial services organisation with a strong presence in global markets. They offer a dynamic, collaborative environment where technology and business intersect to deliver innovative, high-performance solutions. The...

Job Title: Trading Application Support/Reliability Engineer Client: Elite Quantitative Hedge Fund Salary: Up to £150k + Bonus + Package Location: London (Hybrid/Flexible) Sells: Cutting-edge tech, ownership of multiple greenfield projects, no red tape, a friendly/collaborative environment, beautiful offices, personal projects on Fridays! An Elite Tech Driven Quant Trading Firm is currently...

Head of Application Support - £95,000 + Bonus & Benefits – Commodities Trading – Hybrid, LDN We are partnering with one of the world’s leading commodities trading firm, renowned for its expertise in commodities and energy trading. Our client is seeking an experienced Head of Application and Platform Support to lead and oversee their global application support teams. This role requires someone...

Application Support Manager - £90,000 + Bonus & Benefits – Investment Management – Hybrid, LDN We are partnering with one of the world’s leading investment management companies, renowned for its expertise in investment and asset management. With a broad client base spanning worldwide, our client combines scale, active insight, and purpose driven investment. Our client is seeking an experienced...