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13 engineering jobs found in London

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Contract Spy
Mar 16, 2026
6 Months or more
AI-First Full Stack Developer at ISTARI, London, 6 Months initial, £500–700 per day
£500 - £700 per day
Contract Spy London Area, United Kingdom
About Us: ISTARI is a strategic cybersecurity advisory company with a bold vision; to curate the defining cybersecurity ecosystem of our time, uniting enterprise, academia, government, and innovators to build collective resilience. At the heart of this mission, ISTARI helps clients achieve lasting organisational cyber resilience by convening and applying world-class talent, expertise, and innovation through a uniquely powerful network, with ISTARI as the central orchestrator. ─────────────────────────────────────────────────────── The Opportunity: We are seeking an entrepreneurial, AI-native developer to join ISTARI as a contract developer and help transform how we deliver our consulting work. You will be the founding technical resource responsible for building a suite of AI-powered internal tools that dramatically improve productivity across our Advisory practice.   This is not a traditional development role. You will be expected to leverage AI coding...
Contract Spy
Mar 16, 2026
Duration not stated
Senior Solidity Engineer at Test Yantra Software Solutions Private Limited, London, £400 per day
£400 per day
Contract Spy London, UK
Must have skills: Demonstrable experience with Solidity. Strong understanding of blockchain security practices and potential vulnerabilities. Proficiency in Hardhat and Foundry. Experience with Solidity security testing tools like Slither, Mythril, Echidna Practical experience with scripting languages like Javascript or Typescript. Ability to craft unit, integration, fork, and invariant tests, ensuring code longevity. Demonstrable aptitude for best development practices, data structures, algorithms, and methodologies. Bachelor's degree in Computer Science, Engineering, or a related STEM discipline. Excellent debugging and troubleshooting skills. Strong written and verbal communication skills. Self-motivated with the ability to work in a fast-paced, evolving environment. Proficient communication skills in English. Development background in sectors such as banking, finance, or trading, paired with a comprehensive grasp of financial instruments and systems. Bonus...
Contract Spy
Mar 16, 2026
Duration not stated
IDAM Solutions Architect at Test Yantra Software Solutions Private Limited, London, £450-£500 per day
£450 - £500 per day
Contract Spy London, UK
What you will be doing Take ownership of elements of the IDAM Transformation program design and documentation, including HLD’s, LLD’s and Diagrams in both logical and UML/Sequence format Manage aspects of IDAM transformation engagement in multiple Architectural and Technical forums from a technical and engineering perspective for the relevant part of IDAM transformation being designed and approved You will be responsible for detailed designs for all relevant parts of the transformational programme of work for IDAM You will need to understand the technology, solutions and business outcomes of the strategy and be able to convey these to stakeholders up to C level. Be responsible for the successful delivery of relevant parts of IDAM transformation that you are architecting The role requires effective communication across the workstreams and management of their inter-dependencies including oversight of any risks and issues arising. Risk and Issue Management - proactively...
Contract Spy
Mar 09, 2026
Duration not stated
Software Developer - Front Office Trading Technology | London, UK at GreySpark Partners, London, £500-£900 per day
£500 - £900 per day
Contract Spy London, UK
GreySpark Partners is a specialist consultancy that helps capital markets firms transform how they operate, compete and innovate. We combine deep industry expertise with hands-on delivery to solve complex business, technology and regulatory challenges for investment banks, asset and wealth managers, fintechs and other financial institutions, with a strong focus on front-office trading technology and solutions. GreySpark is expanding its Technology talent pool and is seeking experienced Software Developers interested in working on complex, business-critical trading platforms within global investment banks and financial markets clients. This is an opportunity to contribute to the design and optimisation of real-time systems across pricing, risk, connectivity and execution workflows. What You'll Do As a GreySpark technology consultant, you will work closely with front-office and technology teams to deliver both review and delivery projects....
Contract Spy
Mar 02, 2026
Duration not stated
Software Developer - Front Office Trading Technology at GreySpark Partners, London, £500-£900 per day
£500 - £900 per day
Contract Spy London, UK
GreySpark Partners is a specialist consultancy that helps capital markets firms transform how they operate, compete and innovate. We combine deep industry expertise with hands-on delivery to solve complex business, technology and regulatory challenges for investment banks, asset and wealth managers, fintechs and other financial institutions, with a strong focus on front-office trading technology and solutions. GreySpark is expanding its Technology talent pool and is seeking experienced Software Developers interested in working on complex, business-critical trading platforms within global investment banks and financial markets clients. This is an opportunity to contribute to the design and optimisation of real-time systems across pricing, risk, connectivity and execution workflows. What You'll Do As a GreySpark technology consultant, you will work closely with front-office and technology teams to deliver both review and delivery projects. Responsibilities include: •...
Contract Spy
Mar 02, 2026
Duration not stated
IDAM Solutions Architect at Test Yantra Software Solutions Private Limited, London, £450-£500 per day
£450 - £500 per day
Contract Spy London, UK
What you will be doing Take ownership of elements of the IDAM Transformation program design and documentation, including HLD’s, LLD’s and Diagrams in both logical and UML/Sequence format Manage aspects of IDAM transformation engagement in multiple Architectural and Technical forums from a technical and engineering perspective for the relevant part of IDAM transformation being designed and approved You will be responsible for detailed designs for all relevant parts of the transformational programme of work for IDAM You will need to understand the technology, solutions and business outcomes of the strategy and be able to convey these to stakeholders up to C level. Be responsible for the successful delivery of relevant parts of IDAM transformation that you are architecting The role requires effective communication across the workstreams and management of their inter-dependencies including oversight of any risks and issues arising. Risk and Issue Management - proactively...
Contract Spy
Mar 02, 2026
Duration not stated
Senior Solidity Engineer at Test Yantra Software Solutions Private Limited, London, £400 per day
£400 per day
Contract Spy London, UK
Must have skills: Demonstrable experience with Solidity. Strong understanding of blockchain security practices and potential vulnerabilities. Proficiency in Hardhat and Foundry. Experience with Solidity security testing tools like Slither, Mythril, Echidna Practical experience with scripting languages like Javascript or Typescript. Ability to craft unit, integration, fork, and invariant tests, ensuring code longevity. Demonstrable aptitude for best development practices, data structures, algorithms, and methodologies. Bachelor's degree in Computer Science, Engineering, or a related STEM discipline. Excellent debugging and troubleshooting skills. Strong written and verbal communication skills. Self-motivated with the ability to work in a fast-paced, evolving environment. Proficient communication skills in English. Development background in sectors such as banking, finance, or trading, paired with a comprehensive grasp of financial instruments and systems. Bonus...
Contract Spy
Feb 24, 2026
Duration not stated
Software Developer - Front Office Trading Technology at GreySpark Partners, London, £500-£900 per day
£500 - £900 per day
Contract Spy London, UK
GreySpark Partners is a specialist consultancy that helps capital markets firms transform how they operate, compete and innovate. We combine deep industry expertise with hands-on delivery to solve complex business, technology and regulatory challenges for investment banks, asset and wealth managers, fintechs and other financial institutions, with a strong focus on front-office trading technology and solutions. GreySpark is expanding its Technology talent pool and is seeking experienced Software Developers interested in working on complex, business-critical trading platforms within global investment banks and financial markets clients. This is an opportunity to contribute to the design and optimisation of real-time systems across pricing, risk, connectivity and execution workflows. What You'll Do As a GreySpark technology consultant, you will work closely with front-office and technology teams to deliver both review and delivery projects. Responsibilities include: •...
Contract Spy
Mar 16, 2026
Duration not stated
Senior Java Developer at Pixelcode Technologies Limited, Hammersmith Broadway, £400-£500 per day
£400 - £500 per day
Contract Spy Hammersmith Broadway, London W6, UK
We are looking for Senior Java Developers to join on a contract basis (Inside IR35) . The ideal candidate will have experience building scalable microservices, working with event-driven systems, and deploying applications using containerized and cloud technologies. You will contribute to developing reliable backend services and help modernize legacy systems into cloud-ready architectures. Key Skills & Responsibilities Strong experience with Java (latest versions) and Spring Boot Experience designing and developing Microservices architectures Solid understanding of backend design patterns and best practices Experience working with SQL databases, particularly PostgreSQL Knowledge of Object-Oriented programming principles (OCP) Experience with event streaming platforms such as Kafka or RabbitMQ Hands-on experience with Docker and Kubernetes Experience working with AWS or other cloud platforms Ability to build scalable, reliable, and...
Contract Spy
Mar 03, 2026
up to 6 Months
Network & Infrastructure Delivery Manager at SoLyn Projects, Windsor, 3 Months, £450 per day (Outside IR35)
£450 per day
Contract Spy Windsor, UK
We are seeking a highly organised and knowledgeable Network & Infrastructure Delivery Manager to oversee the successful delivery of network, EUC and Cloud related projects across the UK. This role is not hands-on technical , but it does require a strong technical working understanding of network technologies, infrastructure, cloud, EUC and best practices to effectively manage stakeholders, coordinate engineering teams, and ensure smooth project execution. You will be responsible for planning, coordinating, and Project Delivery - Network, video, digital signage upgrades & deployments across multiple UK sites, ensuring that all work is delivered to a high standard and in line with project timelines. Key Responsibilities Manage end-to-end delivery of network infrastructure projects across UK sites. Coordinate with technical teams, vendors, and stakeholders to ensure successful project execution. Oversee project planning, scheduling, documentation,...
Contract Spy
Mar 16, 2026
Duration not stated
AI Business Analyst at Emagine Consulting, London, £450-£550 per day
£450 - £550 per day
Contract Spy London, UK
We are seeking a Business Analyst to focus on AI solutions. In this role, you will identify opportunities to enhance client journeys, improve financial outcomes, automate processes, and integrate AI capabilities within a greenfield project across key financial services functions. AI Business Analyst London x3 Days on-site £450-550pd Inside emagine is a high-end professional services consultancy and solutions firm Specialising in providing business and technology services to the financial services sector, we power progress, solve challenges and deliver real results through tailored high-end consulting services and solutions. We have created a culture of openness and integrity by building genuine and strong relationships and partnerships, enabling us to be uncompromising in our dedication in delivering the optimal service for our clients. Our commitment is not just towards our clients but we aim to foster a positive and equitable working environment with our...
Contract Spy
Mar 04, 2026
Duration not stated
AI Business Analyst at Emagine Consulting, London, £450-£550 per day
£450 - £550 per day
Contract Spy London, UK
We are seeking a Business Analyst to focus on AI solutions. In this role, you will identify opportunities to enhance client journeys, improve financial outcomes, automate processes, and integrate AI capabilities within a greenfield project across key financial services functions. AI Business Analyst London x3 Days on-site £450-550pd Inside emagine is a high-end professional services consultancy and solutions firm Specialising in providing business and technology services to the financial services sector, we power progress, solve challenges and deliver real results through tailored high-end consulting services and solutions. We have created a culture of openness and integrity by building genuine and strong relationships and partnerships, enabling us to be uncompromising in our dedication in delivering the optimal service for our clients. Our commitment is not just towards our clients but we aim to foster a positive and equitable working environment with our...
Contract Spy
Feb 26, 2026
Duration not stated
AI Business Analyst at Emagine Consulting, London, £450-£550 per day
£450 - £550 per day
Contract Spy London, UK
We are seeking a Business Analyst to focus on AI solutions. In this role, you will identify opportunities to enhance client journeys, improve financial outcomes, automate processes, and integrate AI capabilities within a greenfield project across key financial services functions. AI Business Analyst London x3 Days on-site £450-550pd Inside emagine is a high-end professional services consultancy and solutions firm Specialising in providing business and technology services to the financial services sector, we power progress, solve challenges and deliver real results through tailored high-end consulting services and solutions. We have created a culture of openness and integrity by building genuine and strong relationships and partnerships, enabling us to be uncompromising in our dedication in delivering the optimal service for our clients. Our commitment is not just towards our clients but we aim to foster a positive and equitable working environment with our...
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