Hoptroff
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 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.
Vallum
The Role: Golang/Kubernetes Platform Tech Lead Location: Sheffield, Leeds or Birmingham, UK Position Type: Contract Inside IR35 Remote work option Available: Hybrid - 3 Days Onsite Job Description: The candidate should have good technical knowledge of GoLang (our environment is 80% written in GoLang) and a deep understanding of the Kubernetes ecosystem. We are looking for a strong technical individual who can support the team on Kubernetes and GoLang, particularly during PR reviews and technical decision-making. This role goes beyond coding - it requires someone who can combine deep technical expertise with operational insight and strategic thinking. The Kubernetes Platform Tech Lead will work within an agile team of Engineers and Operations personnel building a highly resilient, scalable, performant and developer friendly GKE Kubernetes Platform in an automated and efficient manner. The Platform Engineer will work alongside the Application DevOps teams and cross-functional IT teams. The Lead will be required to use their initiative to innovate to achieve maximum performance and be prepared to investigate and use new products/services offered by GCP and the Cloud Native community. What you'll do Build and manage the Client GKE Kubernetes Platform to easily let application teams deploy to Kubernetes. Mentor and guide support engineers, represent the platform technically through talks, blog posts and discussions Engineer solutions on Client GKE Kubernetes Platform using Coding, Automation and Infrastructure as Code methods (eg Python, Tekton, Flux, Helm, Terraform, ). Manage a fleet of GKE clusters from a centrally provided solution Ensure compliance with centrally defined security controls and with operational risk standards (eg Network, Firewall, OS, Logging, Monitoring, Availability, Resiliency and Containers). Ensure good Change management practice is implemented as specified by central standards. Provide impact assessments where requested for changes proposed on HSBC GCP core platform. Build and support continuous integration (CI), continuous delivery (CD) and continuous testing activities. Engineering activities to implement patches for VMs and containers provided centrally Support non-functional testing Update support and operational documentation as required Fault find and support Applications teams On a rotational on call basis provide out of business hours support as part of our 24 x 7 coverage What you need to have to succeed in this role Demonstrable Kubernetes and Cloud Native experience - building, configuring and extending Kubernetes platforms Automation Scripting (using Scripting languages such as Terraform, Python etc.) Experience of working with Continuous Integration (CI), Continuous Delivery (CD) and continuous testing tools Experience of working with Kubernetes resource configuration tooling (Helm, Kustomize, kpt) Experience working within an Agile environment Programming experience in one or more of the following languages: Python or Go the candidate should have good technical knowledge of GoLang (our environment is 80% written in GoLang) and a deep understanding of the Kubernetes ecosystem. Ability to quickly acquire new skills and tools Help lead the team through technical challenges Help the platform owner with work estimation and stakeholder management Be the technical front of the Managed Kubernetes Platform, supporting our customer queries Be involved in strategic developments for the platform Help in our journey to make the platform multi cloud Nice to have GCP Certifications - ideally professional CKAS/CKA Certifications Kubernetes native Continuous Delivery (FluxCD, ArgoCD) Implementing workload observability using logging and monitoring tools (Prometheus, Grafana, GCP Monitoring) Experience operating in highly regulated industry, eg Financial Services
The Role: Golang/Kubernetes Platform Tech Lead Location: Sheffield, Leeds or Birmingham, UK Position Type: Contract Inside IR35 Remote work option Available: Hybrid - 3 Days Onsite Job Description: The candidate should have good technical knowledge of GoLang (our environment is 80% written in GoLang) and a deep understanding of the Kubernetes ecosystem. We are looking for a strong technical individual who can support the team on Kubernetes and GoLang, particularly during PR reviews and technical decision-making. This role goes beyond coding - it requires someone who can combine deep technical expertise with operational insight and strategic thinking. The Kubernetes Platform Tech Lead will work within an agile team of Engineers and Operations personnel building a highly resilient, scalable, performant and developer friendly GKE Kubernetes Platform in an automated and efficient manner. The Platform Engineer will work alongside the Application DevOps teams and cross-functional IT teams. The Lead will be required to use their initiative to innovate to achieve maximum performance and be prepared to investigate and use new products/services offered by GCP and the Cloud Native community. What you'll do Build and manage the Client GKE Kubernetes Platform to easily let application teams deploy to Kubernetes. Mentor and guide support engineers, represent the platform technically through talks, blog posts and discussions Engineer solutions on Client GKE Kubernetes Platform using Coding, Automation and Infrastructure as Code methods (eg Python, Tekton, Flux, Helm, Terraform, ). Manage a fleet of GKE clusters from a centrally provided solution Ensure compliance with centrally defined security controls and with operational risk standards (eg Network, Firewall, OS, Logging, Monitoring, Availability, Resiliency and Containers). Ensure good Change management practice is implemented as specified by central standards. Provide impact assessments where requested for changes proposed on HSBC GCP core platform. Build and support continuous integration (CI), continuous delivery (CD) and continuous testing activities. Engineering activities to implement patches for VMs and containers provided centrally Support non-functional testing Update support and operational documentation as required Fault find and support Applications teams On a rotational on call basis provide out of business hours support as part of our 24 x 7 coverage What you need to have to succeed in this role Demonstrable Kubernetes and Cloud Native experience - building, configuring and extending Kubernetes platforms Automation Scripting (using Scripting languages such as Terraform, Python etc.) Experience of working with Continuous Integration (CI), Continuous Delivery (CD) and continuous testing tools Experience of working with Kubernetes resource configuration tooling (Helm, Kustomize, kpt) Experience working within an Agile environment Programming experience in one or more of the following languages: Python or Go the candidate should have good technical knowledge of GoLang (our environment is 80% written in GoLang) and a deep understanding of the Kubernetes ecosystem. Ability to quickly acquire new skills and tools Help lead the team through technical challenges Help the platform owner with work estimation and stakeholder management Be the technical front of the Managed Kubernetes Platform, supporting our customer queries Be involved in strategic developments for the platform Help in our journey to make the platform multi cloud Nice to have GCP Certifications - ideally professional CKAS/CKA Certifications Kubernetes native Continuous Delivery (FluxCD, ArgoCD) Implementing workload observability using logging and monitoring tools (Prometheus, Grafana, GCP Monitoring) Experience operating in highly regulated industry, eg Financial Services
