26 to 50 of 87 Legacy Systems Jobs in the South East

highly skilled Security Architect to support a complex Datacentre Exit program which must complete before the end of 2025, ensuring secure transition of workloads, systems, and services from on-premises infrastructure to cloud or alternate hosting environments. This role is critical to maintaining the security posture during migration, managing … and vulnerability management. Review and Lead Security Tooling modernisation i.e. leveraging Microsoft native capabilities Provide guidance on the secure decommissioning of legacy systems and data destruction. Required Skills and Qualifications: MUST have operated as pace to make decisions quickly Proven experience as a Security Architect supporting major More ❯

. 🎯 Key Responsibilities: Design, develop, and optimise data pipelines to support redress and remediation workflows Work with structured data from multiple legacy systems (Oracle) and cloud data platforms (Snowflake) Ensure accuracy and auditability of data transformations and outputs for compliance and reporting Collaborate with business analysts, compliance More ❯

technical risk clearly to non-technical stakeholders Desirable Skills & Qualifications: Experience working within the water industry or similar large infrastructure environments Familiarity with legacy system vulnerabilities and OT risk management Experience managing technical intelligence feeds and platform integration Additional certifications such as OSCP, OSWP, CVA, or CHECK Team More ❯

while defining and implementing modern software architecture practices. You'll play a central role in shaping the company’s technical vision and ensuring its systems are robust, scalable, and fit for purpose. Specifically, you can expect to be involved in the following: Leading the migration from legacy systems to AWS cloud infrastructure Driving the shift from a monolithic architecture to containerised services using Docker Introducing Infrastructure as Code (Terraform) for more efficient deployments Building and mentoring engineering teams, both national and overseas Collaborating closely with the senior management team Instilling best practices, agile delivery More ❯

while defining and implementing modern software architecture practices. You'll play a central role in shaping the company’s technical vision and ensuring its systems are robust, scalable, and fit for purpose. Specifically, you can expect to be involved in the following: Leading the migration from legacy systems to AWS cloud infrastructure Driving the shift from a monolithic architecture to containerised services using Docker Introducing Infrastructure as Code (Terraform) for more efficient deployments Building and mentoring engineering teams, both national and overseas Collaborating closely with the senior management team Instilling best practices, agile delivery More ❯

successful IT projects. Looking for someone who have managed SDLC, business application implementations, worked in legacy environments/integrated legacy systems and replacing databased on access, also engaging with 3rd party suppliers. Successful delivery of IT/Business projects including estimates, plans, resource management, schedule More ❯

Python/Data and Scalability We’re seeking a Software Engineer/Python Developer to join a growing team focused on transforming critical technology systems and data pipelines within the investment management sector. This role involves enhancing market data processes, improving robustness and throughput, and addressing root causes of … practices. Proficient in SQL , databases , and working with data lakes . Cloudera experience is a plus but not required. Familiarity with legacy systems like C# is beneficial. Experience in DevOps and production support environments. Background in investment management or financial services is highly desirable but not essential. … created team of two, supported by the broader software engineering group. Why Join? This role offers the chance to contribute directly to transforming critical systems while gaining deep insight into core business processes, technology platforms, and data flows. You’ll be part of a collaborative team with opportunities to More ❯

into the world of high-performance tech and quantitative finance? Join a leading global trading firm where innovation is key — no legacy systems, no bureaucracy, just a fast-paced, intellectually stimulating environment designed for growth. With unlimited access to cutting-edge technology and mentorship from top-tier … contribute to high-impact projects, shaping the future of trading tech. What You’ll Be Doing 🧠 Develop and enhance state-of-the-art trading systems and infrastructure 📊 Design and implement your own quantitative models 🤝 Collaborate with top engineers, quants, and researchers to tackle complex challenges 🚀 Learn rapidly and grow … your contributions have real impact 🧠 Collaborate with some of the brightest minds in both tech and finance 🛠 Access to top-of-the-line tools, systems, and infrastructure 📈 Unmatched career growth in a high-performance, meritocratic culture Apply now or reach out directly: obloom@hunterbond.com More ❯

just modern tools and real impact. As part of a cross-functional team of experienced engineers and finance professionals, you’ll develop high-performance systems using Java and React Native in a cloud-first, AI-forward environment. To be considered for this Full-Stack Java Developer role, you’ll … Material UI Knowledge of Docker and container-based deployments AWS cloud experience What’s in it for you? Greenfield build – zero legacy systems Direct product impact – your work powers a flagship trading platform AI-friendly culture – work in a team that embraces innovation Private healthcare + Gym … balcony office with views over the HAC Rugby pitch A collaborative and high-performance work environment If you're passionate about building robust financial systems and want to work on meaningful greenfield projects with real impact – apply now . More ❯

partnered with a client in the Home Counties who is embarking on a major Digital Transformation roadmap. This will modernise their legacy systems and play a crucial role in the transformation of both their IT and operating systems. With a strong focus on automation, improving processes, and More ❯

partnered with a client in the Home Counties who is embarking on a major Digital Transformation roadmap. This will modernise their legacy systems and play a crucial role in the transformation of both their IT and operating systems. With a strong focus on automation, improving processes, and More ❯

You’ll Thrive In Outcome-first and data-led Highly collaborative and transparent Open to experimentation and innovation Committed to modernising legacy systems and mindsets Focused on real business impact, not just digital for digital’s sake Apply Now If you’re ready to lead a new More ❯

technical risk clearly to non-technical stakeholders Desirable Skills & Qualifications: Experience working within the water industry or similar large infrastructure environments Familiarity with legacy system vulnerabilities and OT risk management Experience managing technical intelligence feeds and platform integration Additional certifications such as OSCP, OSWP, CVA, or CHECK Team More ❯

technical risk clearly to non-technical stakeholders Desirable Skills & Qualifications: Experience working within the water industry or similar large infrastructure environments Familiarity with legacy system vulnerabilities and OT risk management Experience managing technical intelligence feeds and platform integration Additional certifications such as OSCP, OSWP, CVA, or CHECK Team More ❯

of history and a strong reputation in specialist lending and retail banking, the organisation is modernising its data infrastructure, migrating from legacy systems to a fully cloud-based Azure environment. Role Overview As a Senior Data Engineer, you’ll play a key role in supporting the business More ❯

of history and a strong reputation in specialist lending and retail banking, the organisation is modernising its data infrastructure, migrating from legacy systems to a fully cloud-based Azure environment. Role Overview As a Senior Data Engineer, you’ll play a key role in supporting the business More ❯

while defining and implementing modern software architecture practices. You'll play a central role in shaping the company’s technical vision and ensuring its systems are robust, scalable, and fit for purpose. Specifically, you can expect to be involved in the following: Leading the migration from legacy systems to AWS cloud infrastructure Driving the shift from a monolithic architecture to containerised services using Docker Introducing Infrastructure as Code (Terraform) for more efficient deployments Building and mentoring engineering teams, both national and overseas Collaborating closely with the senior management team Instilling best practices, agile delivery More ❯

Trading Systems Engineer - HFT Market Maker - Remote From Europe - Up to $400k TC+ This is a tech-first HFT firm where engineering is the core differentiator — not an afterthought. The team builds everything in-house, from scratch, with minimal bureaucracy, and a relentless focus on speed, precision, and clean … design. No legacy systems, no silos — just smart people solving hard problems with the best tools available. You’ll be working on some of the most latency-sensitive systems in the world, leveraging modern C++20/23, and pushing hardware/Software to its limits. They … how to extract every drop of performance from a system — from CPU pipelines to network stacks. Have experience in low-latency, multithreaded, high-throughput systems — ideally in trading, gaming, or embedded systems. You’ll be given full ownership of performance-critical systems, working alongside some of the best More ❯

a compliant and future-ready crypto market. The Role We’re seeking a C++ Trading Platform Developer with a strong grasp of low-level systems, high-performance coding, and scalable architecture. You should enjoy digging into how things work, with experience in data structures, networked applications, and optimizing code … on a global, real-time trading platform built with C++ and Python. The environment is fast-moving and non-hierarchical — no legacy systems, minimal bureaucracy, and direct mentorship from senior engineers and traders, including the CTO. Key Responsibilities Build and scale a global trading platform with real More ❯

with technical and non-technical stakeholders. Experience in supplier/vendor management and contract negotiation. Understanding of data protection, cybersecurity, and integration with legacy systems. Strong documentation, reporting, and presentation skills. Desirable Qualifications PRINCE2 Practitioner, Agile PM, or PMP certification. ITIL Foundation or other service management qualifications. Knowledge More ❯

are representing a client in the Home Counties who is embarking on a major Digital Transformation roadmap. This will modernize their legacy systems and play a crucial role in the transformation of both their IT and operating systems. With a strong focus on automation, improving processes, and More ❯

for real-time analytics and trade execution tools Collaborate with portfolio managers to translate complex financial models into robust software Modernise legacy systems and help architect scalable new services Ensure clean, testable code and participate in regular code reviews Requirements: 7+ years of full stack development experience More ❯

shape and scale a next-generation platform - built with AI, computer vision, and large language models at its core. With no legacy systems to slow things down, the team is focused on solving meaningful challenges with modern tools. You’ll own the product roadmap, guide the MVP More ❯

deep technical software engineering expertise with a strong understanding of data processing and analysis. This role is central to the development of scalable data systems and high-performance applications. You'll be working in a Linux-first environment, writing robust code in Python, Rust, C++ and contributing to a … Key Responsibilities Design, build, and maintain high-quality, high-performance data pipelines using Python and Rust. Write infrastructure-as-code for managing Linux-based systems and services. Analyse large and complex datasets, writing custom tools and scripts where needed. Collaborate across engineering and data teams to support data-driven … data processing. Comfortable wearing multiple hats—software development, data analysis, and infrastructure. Ability to work independently, troubleshoot effectively, and avoid unnecessary dependencies. A strong systems thinker with a low-level understanding of how data and computation interact. Preferred Background Experience in high-performance computing environments. Previous work in gaming More ❯

About the Company We are seeking an experienced IT Business Analyst (end to end) to lead the replacement of legacy lending systems with Loan IQ, a corporate lending processing suite of Finastra. The ideal candidate will have a strong background in Commercial Banking operations, particularly with regards … Loans as a product, and extensive experience in leading IT business analysis with focus on definition of the target process, the target state of systems integration, and their SIT strategy within complex global environments. The role requires effective stakeholder management across London and the US, and a deep understanding … key business stakeholders. About the Role The role involves leading the IT integration work stream of Loan IQ implementation with various upstream and downstream systems, engaging with stakeholders, providing project status updates, collaborating with cross-functional teams, and facilitating workshops and meetings. Responsibilities Workstream Leadership: Lead the IT integration More ❯