24 of 24 Permanent Legacy Systems Jobs in the City of London

Staff Engineer Java Spring Boot AWS

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
services sector. As a Staff Engineer, you'll lead the design and delivery of high impact technology projects, helping clients modernise legacy systems, migrate to AWS and introduce modern CI/CD and cloud deployment practices. You'll combine hands-on engineering with technical leadership, problem solving … projects and client engagements from design through to delivery Developing scalable Java applications using Spring Boot and microservices Modernising and migrating legacy systems to AWS Designing and working with REST APIs and distributed systems Introducing and improving CI/CD and DevOps practices Providing technical expertise ...

IT Manager, Fashion Retail (Business Applications)

Location
City Of London, England, United Kingdom
will lead the delivery of business-critical applications while supporting a major ERP transformation programme. You'll oversee the transition from legacy systems to a new ERP platform, ensuring business continuity throughout the migration. Managing a team of application specialists, you'll coordinate testing, training and data … applications such as ERP, WMS and OMS. You'll be a confident people leader with strong stakeholder management skills, a solid understanding of enterprise systems, integrations and data governance, and experience managing multiple projects simultaneously. Knowledge of Oracle Retail would be highly advantageous, as would experience supporting legacy ...

Machine Learning Engineering Lead

Hiring Organisation
Hackajob Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
Lead Are you passionate about designing and deploying intelligent machine learning solutions that drive business impact? Do you enjoy leading teams, building scalable ML systems, and turning complex data into innovative products and services? About the team: We are a software engineering team responsible for developing and supporting business … Engineering, supporting production AI/ML, LLM/RAG, and agentic workflow capabilities for legal content products. In addition to writing code on complex systems, this position provides technical direction on architecture, MLOps, responsible AI, legacy system integration, AWS-based delivery, and AI-assisted development practices. ...

Digital Technology Director

Location
City Of London, England, United Kingdom
term technology strategy to meet the growing demands of the business. The Digital Technology Director will lead a dedicated technology leadership team (Head of Systems & Architecture, Head of Projects, Head of Data), manage relationships with third-party IT service providers and major software vendors, and oversee the deployment … acumen and strategic foresight to balance innovation with ROI and future-proofing. Technology Expertise Deep expertise inenterprise architecture, including integration of legacy systems with modern platforms. Strong understanding ofSaaS enterprise systems,cloud technologies, anddata-driven ecosystems. Experience managing both legacy and modern technology environments ...

Senior Enterprise Architect – Telecoms

Location
City Of London, England, United Kingdom
management activities with internal and external stakeholders. Lead the design of scalable, modular, and resilient BSS/OSS solutions, integrating with legacy systems and modern platforms. Oversee solution architecture workstreams across multiple delivery teams and ensure consistency with target state architecture. Translate business and operational requirements into ...

Director of Engineering

Location
City Of London, England, United Kingdom
assurance of delivery quality. Specific responsibilities are as follows: Engineering Leadership & Delivery Public-facing web platforms, customer-focused channels and digital services. Internal business systems and integrations. CRM and Dynamics-based solutions. Ensure predictable, high-quality delivery against agreed roadmaps and priorities. Balance pace, quality, and sustainability … solutions. Track record of improving engineering delivery, quality, and reliability. Familiarity with cloud-based platforms and modern integration patterns. Experience modernising legacy systems pragmatically. Proven experience leading continuous improvement initiatives across a complex organisation. Experience working in complex, regulated, or mission-critical environments. Strong analytical and problem ...

Solutions Strategist

Hiring Organisation
Primis
Location
City of London, London, United Kingdom
complex and highly regulated environments. The business combines advanced technology, data, and industry expertise to help organisations improve processes, modernise legacy systems, and solve operational challenges that traditional software often struggles to address. With strong customer traction and continued growth, they are expanding their team and looking … client-facing skills to ensure solutions are aligned with customer objectives and successfully adopted. This role would suit someone with experience in software development, systems engineering, technical consulting, solutions consulting, or technology deployment who enjoys solving complex problems and working directly with customers. What You'll Do Work directly ...

Insurance Program Manager

Location
City Of London, England, United Kingdom
help banks, credit unions, and insurers design, launch, and evolve financial products dramatically faster than traditional methods. Our platform sits above existing core systems, enabling institutions to modernize without rip-and-replace, and to innovate without rebuilding from scratch. We serve 60+ financial institutions across North America, Europe … growth in 2023 and is profitable and scaling fast. Why This Role Exists Insurance organizations are facing increasing pressure to modernize legacy systems, accelerate product innovation, improve customer experiences, and respond to changing regulatory requirements. FintechOS enables insurers to navigate this transformation successfully. As our customer footprint ...

Head of Finance Transformation (AI & Automation) | Hypergrowth Logistics Tech Scale-up | London

Location
City Of London, England, United Kingdom
finance function from first principles: own how finance operates in an AI-native, high-growth company, not as an improvement on legacy systems, but as a definition of the default state. Rebuild core processes (record to report, procure to pay, order to cash, FP&A) to eliminate … outcomes leadership needs: reduce time to close, time to forecast and time to decision. Give leadership real-time, high-quality financial insight, and build systems that scale to £100m+ revenue without breaking. Who Will Thrive In This Role You've built or redesigned finance systems and operating models ...

Senior AI Engineer - Hedge Fund - Up to £300k TC

Hiring Organisation
Saragossa
Location
City of London, London, United Kingdom
centre of that. This is genuinely greenfield. The team will be transparent with you about that. There is no established playbook here, no legacy system to maintain, no one looking over your shoulder telling you how it was done before. You are helping shape what this function becomes ...

Principle Integration Architect

Location
City Of London, England, United Kingdom
delivering SMBC's Global Horizon programme, the bank's first large scale global technology implementation. Horizon intends to move SMBC's regionalised HR systems to one global platform. Reporting to the EMEA Head of Enterprise Architecture, the Principal Integration Architect role will be responsible for designing, governing, and evolving … bank's integration architecture across core systems, digital platforms, and third-party services. This role ensures seamless, secure, and scalable data and service integration across a complex global technology landscape, supporting both legacy modernization and cloud transformation initiatives. The anticipated salary range for this role ...

Connectivity and Messaging Engineer

Location
City Of London, England, United Kingdom
teams offer you an environment that will present you with exciting challenges - be it through the support and further development of legacy systems or the introduction of modern technologies such as AI, machine learning and highly automated trading applications. Your Role in the team: We are about ...

Azure Architect: Cloud Platform & AKS Lead (Hybrid)

Location
City Of London, England, United Kingdom
serverless functions, and manage Identity with Entra ID, MFA, and RBAC, along with data and API integrations to connect legacy systems and third-party services. #J-18808-Ljbffr ...

Senior Technical Business Analyst - CRM Database digital

Hiring Organisation
Huxley Associates
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£40000 - £75000/annum
Business Analyst Excellent communication skills, with the ability to talk and present to a range of audiences Proficiency in digital transformation - legacy systems to modern architecture patterns (e.g. microservices/data hubs/SQL/Salesforce) This role is open now for applications and interviews For more ...

Hybrid IT Manager — ERP & Business Applications

Location
City Of London, England, United Kingdom
Applications) to lead the delivery of critical business applications and drive a major ERP transformation. You will oversee the migration from legacy systems to a new ERP platform, ensuring business continuity while managing a team of application specialists and coordinating testing, training and data migration. You will ...

Azure Cloud Architect - Hybrid London, AKS & IAM

Location
City Of London, England, United Kingdom
Identity and Access Management (Entra ID/Azure AD), MFA, and RBAC, plus data integration and RESTful APIs to connect to legacy systems and third-party services. #J-18808-Ljbffr ...

Director, Business Development - UK

Location
City Of London, England, United Kingdom
machine learning and artificial intelligence, to set new industry standards. Recently, the FDA selected RxLogix's PV Surveillance Suite Platform to replace its legacy FAERS signaling system, utilizing our modules for advanced data analytics, signal detection, evaluation, signal management, and benefit-risk assessment. General Purpose: The Director, Business ...

Technical Business Analyst

Hiring Organisation
Primus Connect
Location
City of London, London, United Kingdom
areas including policy, claims, reinsurance and other core insurance domains. The programme is working across a complex estate of approximately 25 source systems. These systems vary significantly in structure, terminology, documentation and data quality. The architecture follows a broadly Medallion-style approach, with data moving from legacy source systems through raw/bronze layers and into a standardised, conformed enterprise model. The programme initially operated with a single delivery squad while the architecture, data model and ways of working were established. It is now moving into a scale phase, growing to multiple parallel delivery ...

Data Engineer

Location
City Of London, England, United Kingdom
Data Engineer, you'll play a pivotal role in designing and implementing robust data pipelines, supporting the migration from legacy Azure systems to Databricks, and working closely with stakeholders to deliver tailored data solutions. This role combines hands-on development with collaborative architecture design, and offers ...

Clinical Engineer

Location
City Of London, England, United Kingdom
society. First month - some examples of what to expect: Help add further key third party API integrations, including with legacy EMR systems and national APIs like e.g. the electronic prescribing service, allowing Anima to directly issue prescriptions. Iterate on a proprietary graph traversal algorithm to improve patient … data ready for tokenisation. Help deploy our active deep learning training & validation architecture to prod, so that we can correctly eat up our ‘1.0’ systems at the right time Build cutting edge products like global context aware chat with semantic search, care orchestration and LLM-enabled cloud telephony ...

Solutions Architect (Dynamics 365)

Hiring Organisation
Tria
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90000 - £100000/annum + Holiday + Pension
replacement of legacy systems. You'll join an established transformation team and act as the key Solutions Architect, helping define how systems, platforms and integrations fit together as the organisation moves towards a more modern Microsoft-first architecture. The ideal candidate will be a technically strong Solutions … previously worked in software development before progressing into architecture. You'll need strong Dynamics 365 and Microsoft experience alongside the ability to understand complex systems, integrations and dependencies across a varied technology estate. The Role: * Own end-to-end solution architecture across major technology and transformation projects * Architecture across ...

Lead Backend Engineer

Hiring Organisation
RevTech
Location
City of London, London, United Kingdom
partnering with a fast-growing fintech rebuilding the infrastructure behind modern wealth management. Their platform is replacing legacy adviser and investment systems with API-first tooling designed for speed, transparency, and automation, giving financial advisers a far better way to manage investments at scale. Following a major … work on core platform architecture, not peripheral features High ownership environment with direct influence on product and technical direction Opportunity to modernise systems in an industry still dominated by outdated technology Small engineering team where strong technical decisions have immediate impact Blend of hands-on engineering and leadership, ideal ...

Full Stack Developer

Location
City Of London, England, United Kingdom
welcome. Design sensibility. You care how things look and feel, not just how they function. Experience replacing legacy or external vendor systems with in‐house builds. Open source contributions or side projects we can look at. Why join us? A foundational engineering seat ...

Senior Insolvency Administrator

Hiring Organisation
Gambit Search
Location
City of London, London, United Kingdom
agility and an interest in using technology to improve the way work is delivered. ● Comfort working in a fast-moving environment where processes and systems are continually developing. ● CPI qualification or progress towards CPI/JIEB would be advantageous but is not essential. Why Join ● Equity: Opportunity to share … insolvency. ● Development: Build technical experience with direct exposure to experienced IPs and senior leadership. ● Technology: Work with a purpose-built platform rather than legacy insolvency systems. ● Culture: Fast, collaborative, international and high-trust. ● Growth: Take on increasing responsibility as the team and platform develop. ...