Senior Engineer - MongoDB & AWS Serverless

Role overview Version 1 is hiring a Senior AWS Engineer to design, build, and manage scalable cloud systems for a varied client base. This role focuses on delivering practical AWS solutions that support clients’ business goals and digital transformation. Locations Positions are available in London, Birmingham, Manchester, Newcastle upon Tyne, Edinburgh, and Belfast.

We are seeking an experienced Senior AWS Engineer to join our dynamic team at Version 1. In this pivotal role, you will leverage your expertise in Amazon Web Services to design, build, and maintain innovative cloud solutions that meet the needs of our clients. You will collaborate closely with cross-functional teams to ensure seamless integration of AWS services, enhancing operational efficiency and driving scalability.As a Senior AWS Engineer, you will also mentor junior engineers, contribute to architectural decisions, and stay updated with the latest industry trends. Your contributions will directly impact the success of our projects and the satisfaction of our clients.

Role overview As a Senior Infrastructure Engineer (AWS) at umed, the focus is on building and maintaining the company’s cloud infrastructure. This position is fully remote and supports the London-based team. The main responsibilities involve designing, implementing, and managing scalable environments within AWS. What you will do Design and implement AWS infrastructure to meet evolving business requirements Manage and fine-tune cloud services to ensure high reliability and strong performance Collaborate with teams across umed to keep services available and responsive Incorporate security and compliance best practices into all infrastructure work Location This is a remote position, supporting the team in London, England, United Kingdom.

Join our team as a Senior Data Engineer specializing in AWS!Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: PermanentAbout the RoleWe are seeking a talented Senior Data Engineer with expertise in AWS to be a key player in our dynamic team of engineering professionals. You will spearhead the design, construction, and deployment of innovative cloud-based data pipelines that drive transformative outcomes for Tier 1 financial services clients. Your contributions will significantly enhance data ingestion, transformation, and delivery at scale across the financial services landscape.Your ResponsibilitiesDesign and implement end-to-end data pipelines using AWS-native tools and cutting-edge data architectures.Collaborate closely with clients to gather requirements, craft tailored solutions, and deploy production-ready systems.Utilize AWS Well-Architected Principles to ensure your solutions are scalable, secure, and resilient.Lead the development of robust, thoroughly tested, and fault-tolerant data engineering solutions.Mentor junior engineers, fostering a culture of knowledge sharing and continuous learning within the team.What We Seek

With Intelligence, now a part of S&P Global, is at the forefront of revolutionizing data offerings for participants in alternatives and private markets. As a member of a global organization boasting over 35,000 employees, we possess the unique ability to understand intricate nuances while maintaining a wide-ranging perspective. We empower our clients to assess new investment opportunities within the capital and commodities markets, navigate the energy sector's expansion, harness the acceleration of artificial intelligence, and adapt to the evolving landscape of public and private markets. Our mission is to advance essential intelligence.We are embarking on an exciting phase of growth, with significant funding aimed at transforming us into a pioneering, data-centric platform that places information, automation, and insights at its core.To meet the escalating demands of a dynamic, data-driven organization, we are expanding our data capabilities. This role is an outstanding opportunity for an enthusiastic individual ready to make a tangible impact while engaging with cutting-edge tools and contributing to our data strategy across products and teams.Your ResponsibilitiesDesign, develop, and maintain scalable data architectures and ETL pipelines.Build and manage data models and data warehouse solutions utilizing Airflow, dbt, and Redshift.Write clean, efficient Python and SQL code for data processing and transformation.Integrate data from internal and third-party APIs and services.Optimize data pipelines for performance, scalability, and reliability.Collaborate with data scientists, analysts, and engineering teams to fulfill business requirements.Implement and uphold data security and compliance standards.Utilize version control systems (e.g., Git) to manage and maintain project codebases.Contribute to the ongoing enhancement of data processes and tooling across the organization.

Join our dynamic team at UBDS Group as an AWS Data Platform Engineer, where you’ll leverage your expertise to design, implement, and enhance AWS cloud infrastructure and CI/CD pipelines. This pivotal role emphasizes AWS-native data services, infrastructure automation, and orchestration to facilitate large-scale data operations.Key Responsibilities: Provision, manage, and optimize AWS data services: S3, Redshift, OpenSearch, Athena, Lambda, Glue, and Batch. Implement Infrastructure as Code (IaC) using Terraform. Manage orchestration workflows through Apache Airflow. Support and maintain CI/CD pipelines and version control with GitLab. Monitor core services including security file scanning for S3, data infrastructure access, and usage patterns. Oversee infrastructure supporting Data Engineering workflows, focusing on disaster recovery and performance enhancements. Collaborate with Data Engineering, SRE, and Security teams to ensure secure and efficient data operations. Diagnose and resolve incidents related to AWS data infrastructure. Participate in documentation and process improvements. Manage access and Role-Based Access Control (RBAC). Requirements: Demonstrated hands-on experience with AWS native data services such as S3, Redshift, OpenSearch, Athena, Lambda, Glue, Batch, Step Function, SQS, CloudWatch, CloudTrail, and EMR. Proficient in using Terraform for Infrastructure as Code. Experience with Airflow for DAG orchestration and monitoring. Familiarity with YAML for CI/CD pipelines (e.g., GitLab CI/CD, GitHub Actions). Proficient in Python, SQL, and Bash for automation, querying, and troubleshooting. Strong understanding of AWS Security best practices, IAM policies, and RBAC. Knowledge of AWS Networking and VPC. Experience with containerization technologies such as Docker. Experience with Disaster Recovery, backups, and snapshots. Desirable Skills: Familiarity with AWS Neptune and EKS. Experience with Jira Service Desk. Experience in supporting Data Engineers. Consulting experience is a plus. Ability to produce README and Confluence documentation. Soft Skills: Exceptional problem-solving and troubleshooting abilities. Able to thrive in an Agile environment. Skilled in stakeholder management. Excellent communication and collaboration skills. Benefits:At UBDS Group, we pride ourselves on being a forward-thinking organization that nurtures talent and encourages growth. Join us to be part of innovative projects that shape the future of data.

We are seeking a talented and motivated Mid-Level AWS Data Engineer to join our dynamic team at Capco in London. As a key player in our data engineering initiatives, you will work on cutting-edge projects that leverage AWS technologies to transform data into actionable insights. You will collaborate with cross-functional teams to design and implement robust data pipelines, ensuring data integrity and accessibility.

Join Cloudscaler as an AWS Cloud Engineer!Location: London, UKAt Cloudscaler, located in the heart of London, we proudly serve clients across the UK. This role requires some travel to customer sites, varying by client, with potential onsite commitments of up to 3 days each week. Notably, one of our clients mandates an onsite presence in Bath once every two weeks.Salary: £45,000 - £70,000Security Clearance Requirements:Due to our collaborations with government entities, SC clearance is essential for our client-facing teams. While active SC clearance isn't required at the outset, candidates must be eligible to obtain it. Future roles may necessitate DV clearance, so a willingness to pursue this is a plus.Note: We can only accept applications from individuals based in the UK.About UsAt Cloudscaler, we specialize in AWS landing zones, cloud risk mitigation, and cloud operating models. As thought leaders, we partner with both public and private sector enterprises to help them fully leverage cloud technology.Why Join Us?We prioritize our people and believe that high-performance teams are forged through openness, collaboration, and trust. We offer ample opportunities for connection, idea sharing, and collaboration, both inside and outside of work. Our inclusive culture is bolstered by regular team socials, quarterly company days, and monthly town halls.Acknowledging that each team member brings unique skills and experiences, our tailored learning and development programs support individual growth, helping you navigate our transparent career pathways to meet your professional goals.What We’re Looking ForWe seek AWS Cloud Engineers with experience in AWS Landing Zones, who have hands-on experience in building, testing, packaging, deploying, and operating AWS platforms. An understanding of managing multi-tenant platforms and applying SRE principles is advantageous.

Join Our Dynamic Team as a Senior AWS Platform EngineerLocation: London, UK (Hybrid – typically ~1 day per week on-site)Contract Type: Permanent, Full-timeSalary Package: £75,000 – £90,000 + 10% Bonus + 10% Equity + Additional BenefitsAbout AppviaAt Appvia, we specialize in cloud and platform engineering consultancy, empowering organizations to effectively build, secure, and scale their operations in the cloud. We collaborate with both public and private sector clients to craft cutting-edge cloud platforms, integrate robust engineering practices, and accelerate software delivery.Our expertise lies in platform engineering, DevOps, automation, and cloud-native solutions, establishing a balance between developer agility, security, resilience, and governance.Role OverviewAs a Senior AWS Platform Engineer, you will play an integral role in our platform engineering projects, taking a hands-on approach in designing, building, and managing secure and scalable AWS environments. This position is perfect for an experienced engineer who thrives on tackling intricate technical challenges and collaborating closely with development teams to enhance cloud platforms and delivery pipelines. You will work within multidisciplinary teams, supporting application and platform workloads while guiding customers in adopting modern DevOps and platform engineering methodologies.Your responsibilities will include leading technical deliveries, contributing to solution design, and mentoring junior engineers through knowledge sharing.Interview Process - 4 StagesInitial discussion with Talent AcquisitionTechnical assessment paired with an Engineering team memberIn-depth technical interview with Practice LeadershipFinal competency-based interview with Engineering LeadershipImportant NoteTo be considered for this role, you must either possess an active SC clearance or be eligible for SC, which requires:British Passport or Indefinite Leave to RemainResidence in the UK for at least the last 5 yearsNo criminal convictionsNo financial irregularitiesCandidate ProfileYou are a proficient AWS engineer with a strong background in cloud-native infrastructure and DevOps, comfortable in client-facing environments and directly contributing to project delivery. You will offer:Demonstrable experience in building and operating AWS platformsA comprehensive understanding of modern CI/CD and automation practicesConfidence in collaborating with engineers, architects, and project leadsA pragmatic mindset towards enhancing reliability, security, and developer experienceKey ResponsibilitiesDesign, build, and maintain secure AWS platformsCollaborate with cross-functional teams to deliver high-quality solutionsMentor and guide junior engineersContinuously improve and optimize platform performance

Join Aircall, a leading unicorn in the realm of AI-driven customer communications. Serving over 22,000 businesses globally, we are revolutionizing how customer interactions occur by integrating voice, SMS, WhatsApp, and AI into a unified workspace.Our approach is simple yet profound: we empower teams to work smarter. With innovations like our AI Voice Agent automating routine calls, AI Assist making post-call tasks efficient, and AI Assist Pro offering real-time support, we are driving higher revenues and enabling faster resolutions, allowing teams to scale confidently.Based in Paris, our European headquarters, we also have a strong presence in North America with our Seattle office, alongside teams located in Madrid, Berlin, San Francisco, New York City, Sydney, and Mexico City. Our product is beloved by customers and our business is rapidly expanding, supported by top-tier investors and propelled by swift AI advancements.At Aircall, you will be part of a dynamic, ambitious, and product-focused organization. We prioritize rapid decision-making, tangible results, and real growth, fostering a culture where every team member can make a significant impact.Our Work Culture: We are deeply customer-focused, data-oriented, and committed to achieving meaningful results. Emphasis is placed on ownership, continuous learning, and thoughtful execution. If you thrive in a collaborative and fast-paced environment where trust and impact are paramount, you will find your place with us.As an Infrastructure Engineer, your primary responsibility will be the management and operation of our AWS Cloud Infrastructure. Collaboration with peers and business teams is essential, and having hands-on experience with AWS is a prerequisite.

OpenAI is hiring a Partner AI Deployment Engineer in London, UK, with a focus on AWS solutions. This role involves working alongside teams from various functions to bring advanced AI technologies to partner organizations. Responsibilities Collaborate with internal groups and external partners to integrate AI systems using AWS infrastructure. Tune and optimize the performance of AI deployments within partner environments. Offer technical support throughout and after deployment to maintain reliable operations. Requirements Proven experience with AWS services and architectures. Background in deploying and supporting AI or machine learning solutions. Comfort working with both technical and non-technical stakeholders in collaborative settings.

Legal & General is hiring an Engineering Manager to guide teams working with Java microservices and AWS in London. This role centers on leading software development efforts and supporting technical growth within the group. Role overview The Engineering Manager oversees development teams focused on Java microservices and AWS. Key responsibilities include ensuring technical quality, encouraging new ideas, and delivering reliable software solutions. Collaboration with cross-functional partners is essential to keep engineering work aligned with business needs. What you will do Lead and support development teams working with Java microservices and AWS Drive technical standards and best practices throughout the software development lifecycle Mentor engineers and help foster a culture of learning and innovation Coordinate with other teams to ensure engineering projects meet business objectives Requirements Experience managing or leading software development teams Strong background in Java microservices and AWS Ability to align technical work with broader business goals Skilled at mentoring and developing team members

Join Our Team as a Senior Cloud Architect (AWS)Location: Central London – Hybrid. Our on-site requirements typically range from 1-2 days per week, with some clients necessitating up to 4 days per week on-site.Salary: £120,000-£140,000SC Clearance Requirements: As we collaborate with various government bodies, SC clearance is essential for our client-facing teams. While active SC clearance is not mandatory at the time of application, candidates must be eligible to obtain it. Future DV clearance may also be required, so a willingness to pursue this is a plus.About UsAt cloudscaler, we specialize in AWS landing zones, cloud risk mitigation, and cloud operating models. As thought leaders, we partner with both public and private sector enterprises to help them fully leverage the power of the cloud.Why Join Us?We prioritize our people, fostering high-performing teams through openness, collaboration, and trust. Opportunities abound for both professional and personal development, including team socials, quarterly company days, and monthly 'town halls'.We appreciate that each individual brings unique skills and experiences, which is why our learning and development opportunities are tailored to each person. This ensures you can progress through transparent career pathways and achieve your professional ambitions.What We’re Looking ForWe seek AWS Cloud Architects with extensive knowledge of landing zones, specifically in designing and operating enterprise-scale solutions. A solid understanding of the security risks associated with AWS workloads and best practices for risk mitigation is crucial. As thought leaders, our Architects should possess strong opinions concerning Infrastructure as Code (IaC) structure and modularization, controls and guardrails, and scalable Cloud solutions.What You'll Be DoingYou will collaborate closely with key stakeholders to design and govern significant cloud workloads. Your responsibilities will include defining the infrastructure, network, security design, and platform tooling services.

LemFi (Series B) is on a mission to revolutionize financial services for the Global South.Relocating to a new country should not mean starting from square one. Our dedicated team of over 400 professionals across 20+ countries is crafting a financial ecosystem designed to empower immigrants to maintain connections to their home countries, establish stability, and build wealth, irrespective of their origin or current residence.What started as a platform for swift and affordable remittances is now transforming into a comprehensive solution for multi-currency accounts, seamless payments, credit options, and long-term financial prosperity.With millions of users worldwide, we facilitate over $1 billion in transactions monthly across 30+ countries, demonstrating that financial opportunities should transcend borders.Your RoleAs a Senior Platform Engineer at LemFi, you will play a crucial role in designing, building, and enhancing the cloud infrastructure that enables global money transfers at scale.Your objective is to develop a secure, scalable, and cost-efficient AWS cloud platform that empowers engineers to deploy solutions rapidly while adhering to the operational and regulatory standards expected of a leading fintech organization.Beyond mere infrastructure maintenance, you will create a self-service internal cloud platform that boosts reliability, fortifies security, and ensures our systems are resilient as we manage billions in global transactions.How You'll Make an ImpactDesign and scale robust AWS infrastructure with an emphasis on reliability, security, and cost-efficiency.Develop and uphold Infrastructure as Code (Terraform / CloudFormation) ensuring that modifications are auditable and reproducible.Enhance our observability features (monitoring, logging, alerting, tracing) and fortify SLO-driven reliability.Advance our CI/CD pipelines and contribute to the development of our Internal Developer Platform.Assist in incident response, disaster recovery, and compliance with standards such as GDPR, PCI DSS, SOC2, DORA, ISO27001.Who You AreOwnership-driven — you take initiatives from design through to production.Proactive and innovative — always looking for ways to enhance processes and systems.

Abound is changing how consumer lending works in the UK and beyond. By combining advanced AI with Open Banking data, the company looks at a person’s complete financial situation, not just a credit score, to make lending decisions that are fairer and more accurate. Since launch, Abound has issued over £1.3bn in loans, with a credit performance that outpaces industry averages. The company became profitable within 2.5 years and has backing from major investors, including Citi and Deutsche Bank. With over £2bn in funding, Abound is recognized as one of Europe’s fastest-growing fintechs. Role overview This Senior Security Engineer position is based in London and sits within the Platform team. The role blends DevSecOps responsibilities, serving as a bridge between product engineering and Corporate IT. As a hands-on contributor, the Senior Security Engineer critically reviews security architecture across both production and internal IT environments. During the first 6 to 12 months, the focus will be on designing and implementing next-generation cloud security architecture in AWS and GCP. The role also involves building and maturing internal SOC capabilities, particularly around detection and response. What you will do Manage Microsoft Sentinel to strengthen SIEM/SOAR capabilities Automate RBAC for identity and access management across AWS, Microsoft Entra, and internal systems Embed security controls into GitLab CI/CD pipelines, including scanning, infrastructure-as-code reviews, and automated policy enforcement Support a shift-left approach by integrating security throughout the software development lifecycle Technology stack Cloud & Compute: AWS, ECS Fargate, Aurora, Lambda, GCP Data Lake: S3, DMS, Glue Security & Identity: Microsoft Defender (XDR), Microsoft Sentinel (SIEM/SOAR), Defender for Cloud (CSPM), Microsoft 365, Entra, Intune Cloud Security Tooling: GuardDuty, Security Hub, Inspector, Security Command Center Code & Infrastructure: Terraform, GitLab CI/CD

Ebury empowers ambitious businesses to unlock global growth, and we extend the same philosophy to our team members. We promote innovation, collaboration, and problem-solving, creating an inclusive environment where everyone feels valued, supported, and empowered to thrive.If you are a collaborative individual eager to transform how businesses operate on a global scale, we invite you to connect with us. Discover how Ebury can fast-track your career and help you shape the future.Senior Security Engineer - Cloud InfrastructureHybrid (4 days in office) in LondonEbury is making significant investments in its cloud infrastructure security to ensure the integrity and safety of our global financial services. As a Senior Security Engineer specializing in Cloud Infrastructure, you will be responsible for enhancing and managing the security posture of our cloud environments across AWS and GCP, focusing on network security, perimeter defense, and attack surface management.This hands-on position requires extensive expertise in cloud-native security controls, network architecture, and proactive defensive security operations. You will design, implement, and maintain security infrastructure that identifies and mitigates threats before they affect our operations. Collaborating closely with platform, infrastructure, and security operations teams, you will embed security best practices into our cloud foundations.Key ResponsibilitiesManage cloud security posture and attack surface: Ensure comprehensive visibility and control across AWS and GCP environments. Implement cloud-native security monitoring, detection, and alerting mechanisms to proactively identify and mitigate threats, establishing and enforcing security baselines through policy-as-code.Design and oversee web application firewall infrastructure: Maintain WAF configurations across AWS and GCP, creating and fine-tuning detection rules in line with application threat models and emerging attack patterns. Develop operational processes for rule management and incident response integration, collaborating with application teams to implement protections without disrupting availability.Architect network segmentation and isolation: Design and implement strategies ensuring proper separation between development, staging, and production environments. Define consistent patterns across multi-cloud infrastructure, apply zero-trust principles to workload communication, and document reference architectures for engineering teams.

About the RoleWe are seeking a skilled Senior Backend Engineer to tackle some of the most challenging issues in cybersecurity. In this role, you will help build a cutting-edge platform that integrates over 150 security tools, supports enterprise clients at scale, and drives innovative AI capabilities. Working primarily with C#/.NET on AWS, you will collaborate closely with the Head of Engineering and a passionate team dedicated to excellence in their work. If you are an outstanding engineer eager to create meaningful impact, this opportunity is for you.Why Choose ThreatAware?At ThreatAware, we empower security teams by providing a comprehensive source of truth for all devices and tools within their organizations. With over 150 integrations and deployment in under 30 minutes, our platform offers real-time visibility across entire IT estates. Clients in finance, legal, energy, and healthcare trust us to safeguard their assets.We are now embarking on an ambitious project to enhance our existing six years of accurate cyber asset data by integrating AI capabilities. This will enable security teams to analyze their data, automate workflows, and proactively manage risks before they escalate. The platform you will contribute to is fundamental to this vision.Your ResponsibilitiesAs a Senior Backend Engineer, you will:Contribute to the design and evolution of our core architecture, including the integration framework, APIs, data models, and scalable multi-tenant infrastructure.Develop backend services that support our AI features, creating APIs and data pipelines that provide real-time asset data to large language models.Enhance our integration platform connecting over 150 security tools by designing streamlined, reliable, and efficient integration patterns.Address complex engineering challenges such as event correlation, high-throughput data pipelines, and the development of secure, high-performance APIs.Mentor fellow engineers through code reviews, design discussions, and architectural strategies to elevate the team's overall quality.QualificationsProven expertise in C#/.NET development, with strong instincts in system design that uplift your colleagues.Experience with multi-tenant SaaS platforms on AWS or similar cloud infrastructures.Solid skills in API design and database architecture, always considering scalability, reliability, and maintainability.A keen interest in AI and LLMs, driven by a passion for developing backend solutions that leverage these technologies.A collaborative mindset with a commitment to team success.

Join Longshot Systems Ltd, where we create cutting-edge platforms for sports betting, analytics, and trading. We are seeking a Senior DevOps Engineer to enhance our platform team.You will manage a medium-sized deployment that connects with global sports betting platforms and supports multiple internal teams with diverse infrastructure needs. Your role will involve overseeing critical systems from backtesting to real-time trading and long-running backend services.Our infrastructure is hosted on AWS, and we are undergoing an evolution focused on automation and repeatability to drive our growth. Our core systems process thousands of trading signals per second, requiring minimal latency, presenting similar challenges to high-frequency trading environments but in the sports betting sector.As a Senior DevOps Engineer, you will collaborate closely with the CTO and development team to maintain our production and development trading infrastructure. You will take the lead on developing new infrastructure and troubleshooting performance and stability issues across applications, networks, and operating systems. You should be adept at analyzing metrics, packet dumps, and logs to identify and resolve issues, followed by implementing automation to prevent future occurrences.The ideal candidate is autonomous and innovative, thriving on generating new solutions and suggesting improvements to current methodologies. We offer you flexibility and the freedom to explore effective solutions.We embrace a hybrid work model, requiring in-office attendance on Thursdays at our London (Farringdon) office, with flexible arrangements for the remainder of the week. Our standard working hours are 10 AM to 6 PM UK time, Monday to Friday, with support for flexible schedules to achieve your goals.Regarding on-call responsibilities, while we do not maintain a 24/7 rota, we have a compensated on-call system based on best efforts, which will involve sharing responsibilities within the platform team.Interview Process:Introductory call (30 mins) – discuss your background and interests.First technical interview (30 mins) – live systems management and code review.Second technical interview (60 mins) – in-depth technical questions.Full assessment day (10:30 AM – 5 PM) – a practical systems engineering exercise reflecting actual team work. Meet the team, tour the office, and enjoy a complimentary lunch.

Join Version 1, a leading technology services company, as an AWS Architect. In this pivotal role, you will leverage your expertise in Amazon Web Services to design and implement robust cloud solutions that drive business success. Your contributions will be integral to our clients' digital transformation journeys, ensuring they harness the full potential of cloud technology.We are looking for innovative thinkers who can tackle complex challenges, collaborating with cross-functional teams to deliver exceptional results. This is an exciting opportunity to shape the future of cloud computing while working in a dynamic and supportive environment.