Company Description
We’re Checkout.com . You might not know our name, but companies like eBay, Spotify, Klarna, Uber, and Sony do, because we’re behind many of the digital experiences you use every day.
We are where the world checks out, enabling over 10 billion transactions yearly for more than one billion global shoppers.
The role
This role sits in our Payment Performance team - Payment performance means that we work to make payments have a higher probability of succeeding when they come through us -- thus ensuring higher revenues to all of our merchants. We do this by combining ML/RL and manual knowledge to make routing algorithms that modify a payment’s parameters in real-time. This makes for an exciting technical challenge: we have to combine high performance (<100ms), reliability (99.99%), and live machine learning, which requires us to be ahead of the market in terms of technology.
How you’ll make an impact
Drive and support our software and infrastructure engineers working on proprietary algorithms
Uphold high standards for our uptime and latency requirements while not sacrificing veracity of API responses
Work with data scientists to make modifications to the platform and algorithms in order to achieve even better results
Assist in hiring and developing like-minded engineers on the team
Participate towards maintaining the team’s cohesion and healthiness
Handle our incident response and post-incident investigation processes; participate in on-call rotations
Make difficult choices in planning for the long term vision of our infrastructure and its quality while not overengineering.
Maintain high quality standards and best practices for code, infrastructure and documentation
Support the creation and maintenance of technical documentation
Contribute to designing, developing, and delivering new features for our products
What we’re looking for
Expert level experience with Golang
Enthusiastic about delivery and experience working in a fast-paced environment
Ability to adapt to new technologies quickly and understand the stakes in doing this
Experience in designing and managing large, scalable, high throughput, and highly available systems
Experience with AWS and its basic best-practice architectures
Strong understanding and appreciation for software design and architecture
Strong experience with microservice-based infrastructures
Solid understanding of and GRPC
Desire to work on an exciting product suite, within a fast scaling technical business
Excellent practical knowledge of commonly used patterns in Golang
Experience with Continuous Integration and Deployment workflows
Excellent communication skills, ability to interact optimally with multidisciplinary teams
Additional Information
Bring all of you to work
We create the conditions for high performers to thrive, through real ownership, fewer blockers, and work that makes a difference from day one.
Here, you’ll move fast, take on meaningful challenges, and be recognized for the impact you deliver. It’s a place where ambition gets met with opportunity, and where your growth is in your hands.
We work as one team, and we back each other to succeed. So whatever your background or identity, if you’re ready to grow and make a difference, you’ll be right at home here.
It’s important we set you up for success and make our process as accessible as possible. So let us know in your application, or tell your recruiter directly, if you need anything to make your experience or working environment more comfortable.
Life at Checkout.com
We understand that work is just one part of your life. Our hybrid working model offers flexibility, with three days per week in the office to support collaboration and connection.
Curious about what it’s like to be part of our team? Visit our Careers Page to learn more about our culture, open roles, and what drives us.
For a closer look at daily life at Checkout.com , follow us on LinkedIn and Instagram
£50k - £80k per annum
Company: HARPER HARRISON Job Type: Permanent, Full Time Salary: £50000 - £80000/annumSeniorPermanentFull-time£42k - £48k per annum
Company: MATCHTECH Job Type: Permanent, Full Time Salary: £42000 - £48000/annum car allowanceSeniorPermanentFull-time£100k - £110k per annum
We are looking for a Technical Consultant experienced with SAP and SAP S4 HANA to enhance our clients’ operational capabilities through tailored solutions. In this hybrid role, you will be pivotal in implementing and optimizing SAP technologies, ensuring that systems are aligned...SeniorPermanentHybrid workingFlexible hours- £61k - £81k per annumEstimated...experienced, high-performing recruitment professional to step into a Senior Principal-level role within our Decarbonisation & Energy... ...recruitment and business development • Experience within energy, engineering, or a related technical market • Individuals motivated by high...SeniorLong-term contractFull-timeImmediate start
- ...office is located in Old Street, London's tech hub while most of our engineering and product stakeholders are based out of Porto in Portugal. Our... ...THE ROLE We are seeking a highly skilled Marketing Tech (Senior) Principal to join our dynamic team at Farfetch, reporting to...SeniorPermanentOn-site
£50k - £75k per annum
...should be qualified as a Designer with a background in any of the following:- Architecture, Surveying, Quantity Surveying, Structural Engineering etc. You will ideally have APS and possibly IOSH / NEBOSH Certification. You may also have done the RIBA Principal...SeniorOn-site£120k - £150k per annum
...London practice. This is a rare opportunity for an established Senior Associate who is looking for a clearer and more transparent... ...Financial advisers Construction professionals Surveyors Engineers Why This Role? This opportunity will appeal to Lawyers who:...SeniorPermanentFixed-term contract- £75k - £98k per annumEstimated...Veatch deliver data-driven and strategic planning, consulting, engineering, construction, program management and combined EPC solutions. We... ...Engineer and Principal Designer, Black & Veatch are now hiring a Senior CDM Consultant/Principal Designer to support projects in the UK...SeniorOn-site
£60k - £150k per annum
...Senior Industrial Designer/Principal Industrial Designer (Portfolio submission +CV will be prioritized) *Only candidates with rights... ...collaborating closely with Industrial Design, Product Management, UX, Engineering, and Manufacturing teams. This is an opportunity to influence...SeniorRemote- £64k - £83k per annumEstimated...Role Act as the Product Director’s right hand on product, leading dna’s product strategy, portfolio, roadmap, and delivery. This is a senior level role combining technical, commercial, and customer judgement to create scalable products that deliver measurable P&L impact....SeniorFlexible hours
- £39k - £51k per annumEstimated...ambitious team, leading high-profile international projects while helping shape the continued growth of the business. The Role As a Senior / Principal Consultant, you'll lead Environmental and Social Impact Assessments (ESIA), Environmental and Social Due Diligence (ESDD)...SeniorHybrid workingFlexible hours
- £94k - £125k per annumEstimated...Senior / Principal Physical Design Engineer Fractile is building the silicon, systems and software to break through the memory wall, the fundamental hardware constraint standing between today's AI and what comes next. The frontier of AI is no longer a research problem...SeniorHybrid working
- £58k - £76k per annumEstimated...talent to join the SYSTRA signature team and be part of leading the way in infrastructure design. Context As a Principal Fire Engineer/Technical Lead, the role will be responsible for the consistent and timely delivery of complex design projects as well as driving...SeniorLong-term contractHybrid working
- £44k - £58k per annumEstimated...Job Description Senior/Principal Sustainability Consultant (Carbon) London, United Kingdom Are you a proven sustainability... ...United Kingdom and Ireland Ramboll is a global architecture, engineering, and consultancy company. As a foundation-owned people company,...SeniorLong-term contractFull-timeFlexible hours
- £49k - £65k per annumEstimated...Expression of Interest - Senior / Principal Environmental Consultants - EIA Joining Arup At Arup, we are not just another consultancy... ...consultants work closely with technical specialists, engineers, planners, and other specialists to deliver comprehensive solutions...SeniorFlexible hours
- £68k - £90k per annumEstimated...This is an opportunity to work at the forefront of modern AI engineering, building intelligent products that combine Large Language Models... ...want to build something” and “it’s running in production.” As Senior Principal Platform Lead, Platform DX , you close that gap. You...SeniorFull-timeHybrid workingOn-siteFlexible hours
£65k per annum
...My client is seeking a Senior or Principal Sustainability Consultant to join their established Sustainability team in London. This is an exciting opportunity to work at the forefront of sustainable design, supporting high-profile projects and collaborating with a broad range...SeniorLong-term contractPermanentFull-timeHybrid workingFlexible hours- £62k - £81k per annumEstimated...conflicting priorities. Excellent political, networking and advocacy skills with experience of networking, influencing and challenging at a senior level across a range of both internal and external stakeholders Proven leadership capability with experience leading successful,...SeniorFull-timeNo agencyFlexible hours
£57.19k - £106.21k per annum
...unable to offer relocation support for this role. Please only apply if this location is accessible for you. We are in search of a Senior Principal Biostatistician to join our Neuroscience team within Advanced Quantitative Sciences. Come to an industry leader where you will...SeniorHybrid workingFlexible hours- £44k - £56k per annumEstimated...of it all. Are you a passionate experienced Electrical Engineer with experience of working with HV and EHV voltages with experience... ...experienced Electrical Design Engineers at varying level of seniority from Experienced (ideally Chartered), to Senior, Principal and Senior...SeniorFull-timeFlexible hoursShift work
- £89k - £117k per annumEstimated...Principal Consultant (Senior Manager) – Operational Resilience & Cyber Risk Location: London (Hybrid) | Practice Area: Finance, Risk, Regulatory & Financial Crime | Type: Permanent Build resilience where it matters most across cyber, technology, and third-party...SeniorPermanentHybrid working
- £60k - £79k per annumEstimated...where we bring a unique, integrated perspective and specialist engineering expertise to support offshore developers, investors and the wider... ...across Construction and Installation activities. Role: Our Senior/Principal Electrical Engineer – Power Systems will support the...SeniorHybrid workingFlexible hours
- ...shaping actionable recommendations that address client priorities and industry dynamics. Communicate complex insights effectively to senior stakeholders and ensure that deliverables and proposals reflect rigorous thinking, client relevance, and strategic coherence. Stay...SeniorLong-term contractFull-timeImmediate start
- £45k - £60k per annumEstimated...mixed-use developments, collaborating closely with architects, engineers, environmental specialists, and clients to shape resilient, inclusive... ...with at least post chartership experience. Experience in a senior or principal role within a consultancy environment. Proven...SeniorFull-timeHybrid workingFlexible hours
£49.14k - £91.26k per annum
Summary Principal / Senior Principal Statistical Programmer #LI-Hybrid Location: London, UK Remote working can be considered This role is based in London, UK. Novartis is unable to offer relocation support for this role. Please only apply if this location...SeniorHybrid workingRemoteFlexible hours- £60k - £79k per annumEstimated...CargoWise Consultant Senior Consultant / Principal Consultant Consumer Goods, Retail & Logistics practice You want to boost your career and collaborate with expert, talented colleagues to solve and deliver against our clients' most important challenges? We are growing...Senior
£105k per annum
Company: HARRIS GLOBAL Job Type: Any Salary: £105000.00 - £105000.00Senior- £41k - £54k per annumEstimated...This is an exciting opportunity for a Senior or Principal Geo-Environmental Engineer to join BakerHicks, supporting the expansion of our Land Quality and Geo-Environmental capability across the UK. Whether based in London or Motherwell, you will play an important role...SeniorHybrid workingFlexible hours
- £90k - £120k per annumEstimated...leading global commodities merchant, specializing in energy trading and energy infrastructure investment, is seeking a highly skilled Senior Counsel to join our London office. This role will provide critical legal support across a wide spectrum of commercial activities, with...SeniorOn-site
- £54k - £73k per annumEstimated...About us Hoare Lea is a human-centric and planet-conscious engineering consultancy. We offer intelligent and sustainable solutions to... ...About the role We have an exciting opportunity for a Senior / Principal Electrical Engineer to join our Data Centre & Mission...SeniorFull-timeHybrid workingFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Golang Engineer. Be the first to apply!
- golang developer London
- senior golang engineer London
- senior engineering analyst London
- senior buyers assistant London
- senior energy specialist London
- senior financial manager London
- senior civil infrastructure engineer London
- lettings senior property manager London
- regulatory senior manager at kpmg London
- lecturer senior lecturer adult nursing London

