6 jobs found

Senior C++ Developer (Hybrid, UK-Based) Location: London Salary : £80,000 - £100,000 + EMI Share Options + Private Medical Insurance Vacancy Type: Full-time, Permanent We take care of time, so our customers don t have to. At Hoptroff, we build nanosecond-accurate, software-driven timing systems used by global investment banks, telecoms operators, and broadcasters - including the MiFID II-compliant trade timestamping that financial regulators depend on. When microseconds aren t tight enough and milliseconds are an eternity, our software is what s keeping the world in sync. We re entering an exciting phase of growth and looking for a Senior C++ Developer to join our small, high-calibre engineering team. You ll write modern C++ (C+ or later) at the heart of our Linux-based clock and time synchronisation platform - tight, performance-sensitive code where jitter is measured in nanoseconds and correctness is non-negotiable. You ll own significant components of the platform, contribute to architecture, and work closely alongside a junior developer and a contractor on a tight, collaborative team. The Role Reporting to the Software Development Manager, you ll lead the design, development, and optimisation of C++ software within our Linux-based timing systems. Day to day, you will: Design, build, and optimise low-latency, high-precision C++ at the heart of our timing products - code where performance, determinism, and jitter really matter Make architectural decisions on systems that have to be correct, fast, and observable in production - balancing maintainability with the hard real-time constraints of precision timing Develop online and offline tooling to support time synchronisation and system monitoring Build and maintain automated test cases using Python-based system test frameworks Provide senior-level technical input across product, QA, hardware, and commercial conversations Share knowledge, review code, and support the development of our junior C++ developer Help shape engineering standards, tooling, and processes Essential Experience Extensive professional experience writing modern C++ in production - fluent in modern C++ idioms and confident with C+/23 features such as concepts, ranges, coroutines, and constant expressions (constexpr/consteval) A track record of delivering low-latency, performance-sensitive systems on Linux - production code where determinism, throughput, and tail latency matter Strong computer science fundamentals: data structures, algorithms, concurrency, performance optimisation Demonstrable ability to design software architecture and make sound technical trade-offs Strong debugging and profiling skills (perf, valgrind, sanitizers, flame graphs) - you ve cared about cache lines, lock contention, jitter, and tail latency, not just correctness Confident with Git, CI/CD pipelines, modern build tooling (CMake), and automated testing frameworks Clear technical communicator - you can explain trade-offs to engineers and non-engineers alike Nice to Have Linux networking experience (sockets, networking concepts and standard tooling) Experience interacting with hardware on Linux (device drivers, system interfaces, low-level I/O) Low-level Windows systems development (Windows APIs, system services, platform-specific debugging) PostgreSQL or other relational database experience Python and/or Go (Golang) for tooling, automation, or supporting services Familiarity with time synchronisation protocols such as PTP or NTP Open-source contributions or evidence of staying current with the C++ standard Open to integrating AI tools where they add value What We Offer Salary of £80,000 - £100,000, depending on experience EMI Share Options Private Medical Insurance Hybrid working - 2 days per week at our London (Shoreditch) office, with regular team events Based at a Shoreditch FinTech incubator - a thriving community of like-minded businesses with a full social calendar, networking opportunities, and (importantly) dog-friendly Your code will sit underneath MiFID II-compliant trade timestamps at major banks, broadcast sync at tier-1 broadcasters, and timing infrastructure at telecoms operators - tangible, high-stakes impact at global scale A team that invests in modern tooling and continuous learning To Apply If you feel you are a suitable candidate and would like to work for HopTroff, please do not hesitate to apply.

Senior Software Engineer Central London - Hybrid 100,000 - 125,000 + Bonus / Equity I'm working with a genuinely impressive AI engineering company building advanced systems within the Defence, Security and National Resilience space. Their engineering team is small, highly capable and intentionally low on bureaucracy. They are looking for Senior Software Engineers who enjoy solving difficult technical problems and want genuine ownership over what they build. This is not a narrowly defined role. Engineers here contribute across distributed systems, cloud infrastructure, deployment, platform engineering, agent frameworks and multimodal data environments. The focus is on building robust, scalable systems that operate across cloud, edge and air-gapped environments. The culture is heavily AI-assisted. Engineers actively use tools such as Claude Code, Cursor and Codex to remove low-value work and move faster, while maintaining high engineering standards. Core technologies include Python, Kubernetes, Docker, Postgres, React, Golang and modern cloud platforms, though adaptability and strong engineering fundamentals are valued far more highly than perfect stack alignment. You do not need previous Defence experience. In many cases, strong engineers from startup, product or modern platform engineering backgrounds are likely to be a particularly strong fit. They are looking for thoughtful, adaptable engineers who are comfortable with ambiguity, capable of making sensible technical trade-offs and motivated by building genuinely meaningful technology. Hybrid working from a Central London office, typically three days per week. If that sounds like the sort of environment you enjoy, I'd be happy to tell you more. If you receive suspicious outreach claiming to be from us, please contact us via the ManpowerGroup website.

Senior Full Stack Developer 12-Month Fixed-Term Contract | Hybrid Working (2 Days per Week in London) Salary £54,000 - £61,000 pa plus generous pension and holidays A prestigious client is seeking an experienced Senior Full Stack Developer to join a high-performing technology team delivering innovative AI and automation solutions at scale. This is an exciting opportunity to work on a modern, cloud-native platform using cutting-edge technologies across Back End services, integrations, and user-facing applications. You'll play a key role in shaping engineering standards, influencing technical direction, and delivering high-quality software within a collaborative Agile environment. The Role As a Senior Full Stack Developer, you will focus primarily on Back End engineering using Go , while also contributing to modern React-based Front End applications. You'll work closely with developers, architects, and product teams to build scalable, secure, and observable solutions deployed through Kubernetes-based infrastructure. This is a hands-on senior engineering role ideal for someone who enjoys solving complex technical challenges, mentoring others, and driving best practice across software delivery. Key Responsibilities Design, develop and maintain scalable Back End services in Go Build modern Front End applications using React Develop APIs, integrations and event-driven services Contribute to CI/CD pipelines and cloud-native deployments Review code and champion engineering best practices Improve application performance, observability and reliability Collaborate within Agile delivery teams across multiple projects Support technical decision-making and continuous improvement Skills & Experience We are looking for candidates with strong commercial experience in: Go/Golang Back End development Full stack software engineering within Agile environments REST APIs, integrations and distributed systems React and modern Front End development CI/CD, Git and cloud-based delivery practices Docker and Kubernetes Code reviews, testing and engineering governance Experience with any of the following would be highly advantageous: Microsoft Azure Python GitOps tooling (Argo CD/Flux) Observability tooling (Prometheus, Grafana, OpenTelemetry) AI/LLM-enabled applications Event-driven architectures and messaging platforms What's on Offer Opportunity to work on cutting-edge AI and cloud-native technologies Hybrid working model with flexibility Collaborative, forward-thinking engineering environment High-profile programme of work with real organisational impact £54,000 - £61,000 salary and benefits package If you are a passionate senior engineer looking for your next challenge within a modern technology environment, we would love to hear from you. Please send your CV to Laura at (see below) Services advertised are those of an employment agency.

Head Resourcing is delighted to be partnering with one of the UK's leading retail banks to recruit an experienced Senior DevOps Engineer for their Leeds-based team. The Opportunity This is a fantastic chance to join a forward-thinking digital engineering team where you'll focus on improving and maintaining the tools and processes that support continuous integration, automated testing, and software delivery pipelines . The role is highly collaborative and hands-on, with a strong emphasis on automation, resilience, and enabling faster, more reliable software releases. As well as technical delivery, you'll play an important part in championing DevOps culture -helping teams adopt agile practices, embedding continuous improvement, and sharing expertise across the organisation. Key Responsibilities Design, develop, and enhance CI/CD pipelines and release frameworks. Provide operational support and optimisation for applications running in cloud environments (public and private). Build and manage solutions with containerisation and orchestration (Docker, Kubernetes, service mesh). Drive automation and scalability through infrastructure as code (Terraform, CloudFormation). Contribute across the full software lifecycle-from planning through to production. Mentor colleagues and act as a point of leadership in modern engineering practices. Work closely with cross-functional teams to solve complex technical challenges. What We're Looking For Strong background in cloud platforms such as GCP, Azure, AWS, or OCP. Hands-on experience with DevOps toolchains (Jenkins, Nexus, SonarQube, Git, Maven). Solid programming ability-ideally in Java or JavaScript , though Python, Golang, or Rust are also valuable. Experience with containers and orchestration frameworks . Demonstrated ability to mentor or lead within technical teams . A collaborative approach, with an interest in driving cultural and process improvements. Salary : Depending on experience Pension Discretionary Bonus This role is Hybrid 2 days per week onsite in Leeds. If this sounds like you we would love to hear from you.

*3 DAYS PER WEEK ONSITE, INSIDE IR35* Role: Senior Software Engineer Experienced Senior Software Engineer to support development of services hosted on Public Cloud platforms. You will leverage your expertise in Software Development, along with your Cloud Engineering experience across AWS/GCP, to design and implement resilient Front End client, Back End services and cloud-native solutions. This is an opportunity to work on high-impact systems within a secure, high-availability environment at one of the world's leading financial institutions. Key Accountabilities Responsibilities will include: * Design, develop and maintain highly available, secure, and performant Back End REST API services along with Front End client using Python, Golang, Docker and Cloud-Native services. * Implement and manage database schema changes using Liquibase, ensuring alignment with compliance and audit standards. * Collaborate closely with Architecture and DevOps teams to enhance, maintain and mature Product capabilities/features. * Perform root cause analysis and implement solutions for incidents and performance bottlenecks. Qualifications and experience The ideal candidate for this role will have the below experience and qualifications: * Bachelor's or Master's degree in Computer Science or equivalent industry experience. * Comes from Software Engineering background with infrastructure experience. * 5+ years of development experience with a strong focus on large-scale, distributed systems. * Proficient in Python, Golang and PostgreSQL. * Experience with Liquibase or similar tools for database change management and version control. * Hands-on experience with AWS/GCP, including cloud-native services, storage, IAM, and KMS. * Familiarity with DevOps practices, including Infrastructure as Code (eg, Terraform), CI/CD tools (eg, Jenkins, GitLab CI) and containerization. * Strong understanding of security principles in cloud and enterprise systems. * Familiarity with audit and compliance considerations in regulated industries, particularly finance or banking. * Excellent written and spoken communication skills; an ability to communicate with impact, ensuring complex information is articulated in a meaningful way to wide and varied audiences. * A successful track record of delivering complex projects and/or programmes, using appropriate techniques and tools to ensure and measure success. Essential Skills * Demonstrable experience of: o Public Cloud. o Linux. o Relational and NoSQL databases. o Integration services such as messaging and streams. o Building RESTful API Services. o Containerisation, Kubernetes, serverless functions. o Microservices, and distributed tracing. o Enterprise logging, monitoring, and alerting frameworks (eg, ELK, Splunk, Prometheus, Grafana). * Experience working within an Agile environment. * Programming experience in following languages: Golang & Python. * Good understanding of cryptography (authentication, data encryption). * Ability to quickly acquire new skills and tools. * Good non-functional testing experience. LA International is a HMG approved ICT Recruitment and Project Solutions Consultancy, operating globally from the largest single site in the UK as an IT Consultancy or as an Employment Business & Agency depending upon the precise nature of the work, for security cleared jobs or non-clearance vacancies, LA International welcome applications from all sections of the community and from people with diverse experience and backgrounds. Award Winning LA International, winner of the Recruiter Awards for Excellence, Best IT Recruitment Company, Best Public Sector Recruitment Company and overall Gold Award winner, has now secured the most prestigious business award that any business can receive, The Queens Award for Enterprise: International Trade, for the second consecutive period.

About the role: Join Our Team at Holland & Barrett! Are you passionate about cloud security and looking to make a significant impact? Holland & Barrett is seeking a Cloud Security Specialist to help us define and implement our cloud security strategy. If you're an experienced professional eager to work with cutting-edge technology and collaborate with diverse teams, we want to hear from you! Key Responsibilities: Security Strategy: Help define and execute the Holland & Barrett cloud security strategy, partnering with platform and Site Reliability Engineering (SRE) teams to build robust infrastructure that supports our business. Perimeter Security: Establish platform perimeter security by implementing controls at ingress and egress points, including creating and maintaining an edge network with a Web Application Firewall (WAF), Distributed Denial of Service (DDoS) protection, and a Content Delivery Network (CDN). Access Control: Establish an access control baseline focusing on the principle of least privilege and segregation of duties. Monitor and enforce these controls once roles and permissions are set. Security Controls: Design, implement, and maintain security controls to prevent, detect, and remediate insecure configurations, including defining and disseminating secure AWS/infrastructure baselines. Standards Development: Own the development and maintenance of tailored security standards and guidelines, creating reusable resources for various development teams. AWS Security Services: Establish and manage AWS security services, including certificate authorities, encryption services, insecure configuration scanners, and security control canaries. Key requirements: Essential: 5+ years of experience in cloud security, particularly with AWS, and at least 2+ years in software development. Strong understanding of cloud and application security concepts, including secure coding practices, threat modeling, vulnerability management, and access control mechanisms. Experience with AWS, Kubernetes, Service Mesh, API gateways, and API Security (authentication and authorization). Proficiency in programming languages such as Python, JavaScript, GoLang, Terraform, CloudFormation (AWS), and AWS CDK. Familiarity with Agile methodologies like SCRUM, along with proven project management skills to manage multiple security projects effectively. Desired: Ability to work independently, take initiative, and maintain a keen attention to detail, ensuring high security standards. Strong communication and interpersonal skills, facilitating effective collaboration with both technical and non-technical teams. Why Holland & Barrett? At Holland & Barrett, we are dedicated to promoting health and well-being while ensuring the highest standards of cloud security. Join our team and be part of a company that values innovation and security. Ready to Make an Impact? If you're excited about cloud security and want to contribute to a secure future, apply now! We look forward to welcoming you to our team. We support flexibility and productivity of our employees by hybrid working arrangements. Although your role will be based in London (or Nuneaton, or Amsterdam) you will be required to travel only occasionally to our Hubs in Nuneaton or London or to any other location of H&B. What we offer: Pension company contribution = 3% Incentive scheme up to 10% of annual salary , based on company performance. Your wellbeing is paramount so you can get away and take 33 Days Holiday per year . Private Medical Care (Self after 1 year) Learning and Development opportunity with Holland & Barrett is a great base for career development long term. Career progression. Refer and Earn Scheme - as we're growing you can earn money by referring people to join us from your network. Epic Extras gives you access to exclusive benefits, free advice and savings from a range of retailers and providers. Stay healthy with Discounted Products - from day one you'll get a 25% discount (on top of other promotions) when you shop at H&B on anything that you buy. We all need a little help sometimes, so weoffer Free 24/7 Confidential Advice & Colleague Welfare . Mental Health First Aiders - we have lots of qualified Mental Health First Aiders because its all about your health & wellbeing. Stay active in the Onsite Gym at our Nuneaton Hub! We have colleague Reward and Recognition Schemes , so your hard work and loyalty won't go unnoticed. And many more! We're passionate about helping every colleague thrive across all dimensions of wellbeing, and we're committed to having a diverse and inclusive workplace. In line with our EPIC values (Expertise, Pioneering, Inclusive, Caring), we embrace and actively celebrate all our colleagues' unique and varying experiences, backgrounds, identities and cultures - I am me, we are H&B. Holland & Barrett does not accept unsolicited resumes from search firms/recruiters. Please do not forward resumes to our job alias, employees, or any other company location. Holland & Barrett is not and will not be responsible for any fees if a candidate submitted by a search firm/recruiter unless otherwise agreed with respect to specific open position(s).