31 aws cloud engineer jobs found in London

Backend Engineer – C#, .Net, Azure | Payments Financial Services | £600/day outside IR35| Hybrid We’re partnering with a leading financial services firm in the FinTech payment space that’s investing heavily in modernising its technology stack. With a new tech leader driving innovation, the focus is on building in-house systems that are scalable, reliable, and future-ready. About the Role Backend Engineer position You’ll take ownership of building and enhancing key client-facing applications using C#, .Net, Azure . As a Backend Engineer you will have tried and tested experience joining a FinTech/Financial Services company at the stage of 0-50 employees. This company is looking to grow significantly, building out 4 new engineering teams include Seniors and Team Leads. The work spans complex financial products, so you’ll have the chance to engage with both technical and business stakeholders across the UK. 💰 Paying up to £600 per day (Outside IR35) 🏢 1–2...

Principal Engineer : Rate TBC : Outside IR35 : Hybrid London : 3 months rolling A globally scaled technology business is seeking a Principal Engineer to define the next generation of its API platform. Operating at significant scale, this is a hands-on engagement with real influence over the architectural direction of a critical engineering pillar. Key responsibilities as a Principal Engineer: Defining and driving the architectural vision for a large-scale API ecosystem Designing cloud-native distributed systems at scale Building high-throughput event-driven services Leading on security, observability, performance, and maintainability Championing TDD, CI/CD, Infrastructure as Code, and automated testing Embedding AI-powered capabilities into engineering workflows Skills and requirements: TypeScript, Node.js, AWS (EKS, Lambda, Aurora RDS), Kubernetes, GraphQL, Kafka, Terraform, DataDog Salesforce or enterprise CRM experience is a strong...

Leading Entertainment client now requires a Tech Lead to drive the evolution of their consumer-facing platforms. This role combines hands-on technical leadership with strategic oversight, focused on modernising systems and delivering seamless, scalable digital experiences to millions of users. Key Responsibilities: Define and execute the technology strategy for consumer services. Lead architecture decisions, transitioning to cloud-native and microservices-based systems. Drive large-scale transformation programmes to improve performance, scalability, and customer experience. Lead and mentor engineering teams, promoting best practices across development, DevOps, and reliability. Collaborate with Product, Design, and Data teams to deliver customer-focused solutions. Key Requirements: Proven experience as a Tech Lead, Principal Engineer, or similar strategic leadership role within consumer-facing digital products. Strong expertise in modern software...

DATA ENGINEER 6-MONTH CONTRACT LONDON (1 day in office) £500 - £550 per day (Outside IR35) This position as a Snowflake Engineer offers the opportunity to join a leading travel company based near West London, currently undergoing a major cloud data transformation. THE COMPANY This established Pharma brand is known for its innovation and commitment to delivering seamless customer experiences through data. With a focus on modernising its data platforms, the company is investing in Snowflake and cloud-native tooling to better understand customer journeys, improve operations, and fuel growth. Contractors and perm hires we 've placed here consistently highlight the collaborative culture, exciting technical challenges, and strong support from leadership. THE ROLE As a Data Engineer, you will play a crucial role in a data transformation program, focusing on optimising data pipelines and enabling cloud-driven insights. You will also be...

C++ Software Engineer - Outside IR35 Contract London, UK Long-Term Engagement on a Rolling Contract Hybrid Working Up to £750 per day (Outside IR35) We have partnered with a leading Technology Firm who are looking to add a Software Engineer with skills on C++ to their Market Data team! The succesful candidate will have experience in Financial Markets Technology and realtime market data expertise. It's a Front Office position so you must be comfortable speaking with Portfolio Managers, Traders, C-Suite etc... Responsibilities will include : Architecture and Implementation of Low Latency C++ systems (robust, resilient, accurate, stable and fast) - by doing this you will position the client as a leader in Quant Trading. Work alongside hardware and software teams to build realtime market data processing. Define, implement and enforce SLAs, policies and metrics to monitor the area. Develop Systems, Interfaces and tools to historical market data simulations to...

Backend Engineer – C#, .Net, Azure | Payments Financial Services | £600/day outside IR35| Hybrid We’re partnering with a leading financial services firm in the FinTech payment space that’s investing heavily in modernising its technology stack. With a new tech leader driving innovation, the focus is on building in-house systems that are scalable, reliable, and future-ready. About the Role Backend Engineer position You’ll take ownership of building and enhancing key client-facing applications using C#, .Net, Azure . As a Backend Engineer you will have tried and tested experience joining a FinTech/Financial Services company at the stage of 0-50 employees. This company is looking to grow significantly, building out 4 new engineering teams include Seniors and Team Leads. The work spans complex financial products, so you’ll have the chance to engage with both technical and business stakeholders across the UK. 💰 Paying up to £600 per day (Outside IR35) 🏢 1–2...

2nd Line Support Engineer (Infrastructure) Location: Hybrid / UK-based Contract Length: 6 months IR35 Status: Outside IR35 Overview We are seeking a proactive and detail-oriented 2nd Line Support Engineer to support and maintain server infrastructure across both on-premise and cloud environments. This is a hands-on role suited to someone with solid foundational experience who is looking to deepen their skills across infrastructure, backend systems, and some frontend/server-facing technologies. You will work closely with senior engineers to support, monitor, and maintain systems, assist with upgrades, and ensure platform stability within a highly regulated environment. Key Responsibilities Provide 2nd line support for physical and virtual server environments Monitor system performance, investigate issues, and carry out troubleshooting across backend infrastructure Support and maintain Windows Server platforms (basic Linux exposure beneficial) Assist with server...

Tecknuovo is a deliberately different digital consultancy, delivering secure, modern solutions while upskilling client teams to ensure zero long-term dependency. We are seeking an SC-cleared AWS DevOps Engineer to support a government digital environment, working across cloud-native infrastructure and containerised platforms. The role focuses on building, maintaining, and optimising scalable AWS environments, embedding infrastructure-as-code best practices, and collaborating closely with engineering and platform teams to deliver secure, resilient services within regulated environments. Immediate start required. Essential Skills: Strong AWS infrastructure and platform engineering experience Hands-on experience with EKS (Elastic Kubernetes Service) Experience using Terraform for infrastructure as code Strong configuration management experience with Ansible Proficiency in Python Scripting and automation Good knowledge of AWS networking and security...

2nd Line Support Engineer (Infrastructure) Location: Hybrid / UK-based Contract Length: 6 months IR35 Status: Outside IR35 Overview We are seeking a proactive and detail-oriented 2nd Line Support Engineer to support and maintain server infrastructure across both on-premise and cloud environments. This is a hands-on role suited to someone with solid foundational experience who is looking to deepen their skills across infrastructure, backend systems, and some frontend/server-facing technologies. You will work closely with senior engineers to support, monitor, and maintain systems, assist with upgrades, and ensure platform stability within a highly regulated environment. Key Responsibilities Provide 2nd line support for physical and virtual server environments Monitor system performance, investigate issues, and carry out troubleshooting across backend infrastructure Support and maintain Windows Server platforms (basic Linux exposure beneficial)...

C + + Software Engineer - Outside IR35 Contract London, UK Long-Term Engagement on a Rolling Contract Hybrid Working Up to £750 per day (Outside IR35) We have partnered with a leading Technology Firm who are looking to add a Software Engineer with skills on C + + to their Market Data team! The succesful candidate will have experience in Financial Markets Technology and realtime market data expertise. It 's a Front Office position so you must be comfortable speaking with Portfolio Managers, Traders, C-Suite etc... Responsibilities will include : Architecture and Implementation of Low Latency C + + systems (robust, resilient, accurate, stable and fast) - by doing this you will position the client as a leader in Quant Trading. Work alongside hardware and software teams to build realtime market data processing. Define, implement and enforce SLAs, policies and metrics to monitor the area. Develop Systems,...

Looking for a Senior Java Developer that has worked with Kotlin. The ideal candidate should be passionate about clean code and scalable solutions. This opportunity will allow you to design robust Microservices Architecture, within an automated data-heavy environment. This will be an initial 6 month contract with possible extensions (OUTSIDE IR35) Remote with occacional trips to London (1 day per month) Required Skills Java, Spring, Spring Boot Experience working with DevOps methodologies and scalable CI/CD pipelines Microservices Architecture Exposure to Big Data technologies such as: Kafka, Spark, Hadoop etc Strong understanding of clean code principles Experience working with AWS Cloud Kotlin experience (preferred)

Overview We are looking for a skilled Data Engineer with strong experience in Snowflake to join our growing data team. You will be responsible for designing, building, and maintaining scalable data pipelines and architectures that support analytics, reporting, and data-driven decision-making across the organization. 6 months initial contract (OUTSIDE IR35) Remote with occasional travel into London  (1 day per month) Key Responsibilities Design, develop, and maintain robust data pipelines and ETL/ELT processes Build and optimize data models within Snowflake for performance and scalability Ingest data from various sources (APIs, databases, streaming platforms, etc.) Ensure data quality, integrity, and governance across systems Collaborate with data analysts, scientists, and business stakeholders to deliver data solutions Monitor and troubleshoot data workflows and pipeline performance Implement best practices for data security,...

🚀 Hiring: AWS Cloud Platform Engineer 📍 London, UK (Hybrid – 3 days onsite) 📄 Contract: 6 Months + Extension (Outside IR35) 💼 Experience: 6+ Years 🔧 Skills Required: AWS, Terraform, Kubernetes (EKS), Go (mandatory), Bash/Python, Networking, Istio, NGINX/HAProxy/Traefik 💡 Work on secure, scalable cloud platforms in a 24/7 banking environment. 📩 Interested? Share your CV or DM me! Please share your CV: smeeta@skywaves.pro WhatsApp Number : +918050711565

Costello & Reyes Group Ltd has been engaged by its client, an international Pharma firm, to identify an SC Cleared Security Architect Lead for an initial 6 month engagement ( with a likelihood to extend). The Security Architect Lead will be responsible for leading the design and implementation of a Zero Trust Architecture (ZTA) framework aligned to NIST SP 800-207 Zero Trust Architecture principles. This is a strategic role focused on enhancing the organisation's security posture by implementing identity-centric, policy-driven access controls across a hybrid and cloud-first environment. Acting as the key interface between senior client stakeholders and subject matter experts (SMEs), the successful candidate will ensure that architectural decisions are robust, aligned to best practice, and deliverable within the organisation's technical and operational landscape. YOU WILL NEED TO HOLD VALID SC CLEARANCE Key Responsibilities Lead the end-to-end design and delivery...

2nd Line Support Engineer (Infrastructure) - Outside IR35 Location: Hybrid/UK-based Contract Length: 6 months IR35 Status: Outside IR35 Overview We are seeking a proactive and detail-oriented 2nd Line Support Engineer to support and maintain server infrastructure across both on-premise and cloud environments. This is a hands-on role suited to someone with solid foundational experience who is looking to deepen their skills across infrastructure, Back End systems, and some frontend/server-facing technologies. You will work closely with senior engineers to support, monitor, and maintain systems, assist with upgrades, and ensure platform stability within a highly regulated environment. Key Responsibilities Provide 2nd line support for physical and virtual server environments Monitor system performance, investigate issues, and carry out troubleshooting across Back End infrastructure Support and maintain Windows Server platforms (basic Linux exposure beneficial) Assist...

C++ Software Engineer - Outside IR35 Contract London, UK Long-Term Engagement on a Rolling Contract Hybrid Working We have partnered with a leading Technology Firm who are looking to add a Software Engineer with skills on C++ to their Market Data team! The succesful candidate will have experience in Financial Markets Technology and realtime market data expertise. It's a Front Office position so you must be comfortable speaking with Portfolio Managers, Traders, C-Suite etc... Responsibilities will include : Architecture and Implementation of Low Latency C++ systems (robust, resilient, accurate, stable and fast) - by doing this you will position the client as a leader in Quant Trading. Work alongside hardware and software teams to build realtime market data processing. Define, implement and enforce SLAs, policies and metrics to monitor the area. Develop Systems, Interfaces and tools to historical market data simulations to increase research productivity....

Infrastructure Engineer - Outside IR35 Location: Hybrid/UK-based Contract Length: 6 months IR35 Status: Outside IR35 Overview We are looking for an experienced Infrastructure Engineer with demonstratable experience around Windows Server upgrades/migrations. This role focuses primarily on Windows Server but will also include upgrading/migration SQL Servers to newer versions. The customer operates in a highly regulated environment so previous experience in insurance, banking, financial services or similar is highly desirable. Key Responsibilities Upgrade and support physical and virtual server infrastructure across on-prem and cloud environments Administer and maintain Windows Server platforms (Linux exposure desirable) Manage core services including Active Directory, DNS, DHCP, Group Policy, and identity integrations Ensure security, compliance, and audit readiness (eg SOC2, internal standards) in collaboration with InfoSec Drive automation, upgrades, and...

Costello & Reyes Group Ltd has been engaged by its client, an international Finance house to identify a CyberArk (PAM) Architect for an initial 12 - 18 months engagement (with a likelihood to extend). Overview The Senior CyberArk Architect will be responsible for designing, implementing, and governing enterprise-grade Privileged Access Management (PAM) and identity security solutions across complex hybrid and multi-cloud environments. This role requires deep technical expertise in CyberArk platforms, identity security architecture, and Zero Trust principles, alongside strong experience integrating security technologies across cloud, infrastructure, and enterprise identity ecosystems. The role will act as a senior technical authority, shaping security architecture decisions, leading implementation strategy, and ensuring alignment with industry frameworks and organisational security standards. Key Responsibilities Security Architecture & Design Lead the design...

Infrastructure Engineer - Outside IR35 Location: Hybrid / UK-based Contract Length: 6 months IR35 Status: Outside IR35 Overview We are looking for an experienced Infrastructure Engineer with demonstratable experience around Windows Server upgrades/migrations. This role focuses primarily on Windows Server but will also include upgrading/migration SQL Servers to newer versions. The customer operates in a highly regulated environment so previous experience in insurance, banking, financial services or similar is highly desirable. Key Responsibilities Upgrade and support physical and virtual server infrastructure across on-prem and cloud environments Administer and maintain Windows Server platforms (Linux exposure desirable) Manage core services including Active Directory, DNS, DHCP, Group Policy, and identity integrations Ensure security, compliance, and audit readiness (e.g. SOC2, internal standards) in collaboration with...

Job Title: Senior Platform Engineer (AWS) – Data Platform Focus Location: Hybrid, 2days/week onsite-London, UK Duration: 6Months+ Contract Outside IR35 520GBP/Day Outside IR35 Overview We are hiring a Senior Platform Engineer (AWS) to work on a large project focused on moving data to AWS and building a modern data platform. The role is mainly platform and DevOps focused, with some involvement in data migration and data pipelines. We’re looking for someone who is strong in AWS, infrastructure, and automation, and can help build a scalable and reliable platform. This is a senior role, so you’ll play an important part in strengthening the team and supporting delivery. Key Responsibilities Design and implement scalable AWS platform architecture to support data migration and ingestion Deliver platform engineering and infrastructure solutions (IaC, networking, security, environments) Build and maintain CI/CD pipelines and DevOps frameworks Support...