[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Arch Capital Group jobs](https://jobs.opennash.com/companies/arch-capital-group/) · [Search jobs](/search/) Arch Capital Group · London, United Kingdom # Underwriter/Senior Underwriter, NACT London, United Kingdom Senior individual contributor Listed on Arch Capital Group’s official careers site. Listed as of October 20, 2026. Check that it is still open and apply there. [Apply on Arch Capital Group’s careers site →](https://archgroup.wd1.myworkdayjobs.com/careers/job/London-United-Kingdom/Underwriter-Senior-Underwriter--NACT_R25_1022) [OpenNash Jobs](https://jobs.opennash.com/) / [Arch Capital Group](https://jobs.opennash.com/companies/arch-capital-group/) / Underwriter/Senior Underwriter, NACT ## Job description With a company culture rooted in collaboration, expertise and innovation, we aim to promote progress and inspire our clients, employees, investors and communities to achieve their greatest potential. Our work is the catalyst that helps others achieve their goals. In short, We Enable Possibility℠. ### Key Responsibilities Responsible for underwriting business on behalf of the syndicate within the parameters of the Syndicate Business Forecast (SBF) and the Syndicate Underwriting Guidelines (SUG’s). Assist the BGL in development of long/short term strategy, and SBF for relevant class of business. Assist the 'Head of' in the planning and negotiation of outward reinsurance in accordance with Company corporate standards and SBF. Build and maintain good client and broker relationships to access new and renewal business in accordance with our SBF. Provide a high quality service to brokers and customers and ensure timely responsiveness to business flow. Ensure that the monitoring of underwriting activities, risk controls and compliance checks are in accordance with the SUG’s and Class of Business (COB) Guidelines. Ensure that syndicate management reporting requirements, premium income monitoring, Management Information (MI) and Key Performance Indicators (KPI’s) are complied with. Ensure that underwriting administration processes including risk recording and Performance Management Data (PMD) rate change information is in accordance with SUG’s. Manage and maintain aggregate exposure management/ Realistic Disaster Scenario (RDS’s) within the agreed limits, ensuring that at all times the Exposure Management Team have access to up to date exposure data. Ensure that underwriting staff are effectively managed and trained. Participate in committees as requested. Working in conjunction with Solvency II guidelines and within given parameters. ### Minimum Qualifications, Skills and Experience Enthusiastic, hardworking and driven individual with a focus on providing the best possible service. Can demonstrate ability to work in a busy office environment, prioritise and organise workload in order to meet deadlines. Able to learn and take on new tasks quickly and use own initiative to explore possibilities before raising queries. Demonstrates pride in delivering excellent, quality service and endeavours to exceed expectations. Attention to detail in producing high quality output and bale to maintain this when under pressure. Excellent communication skills with confidence to ask questions to ensure job requirements and underwriting matters are understood. Commitment to identify opportunities to increase efficiency and quality of operational support evidenced through previous achievements. Proactive, showing initiative when completing tasks by pre-empting issues and proposing solutions for them. Confidence in building rapport and trust with a range of internal and external stakeholders. Flexible approach to work Do you like solving complex business problems, working with talented colleagues and have an innovative mindset? Arch may be a great fit for you. If this job isn’t the right fit but you’re interested in working for Arch, create a job alert! Simply create an account and opt in to receive emails when we have job openings that meet your criteria. Join our talent community to share your preferences directly with Arch’s Talent Acquisition team. 13021 Arch Underwriters Europe Limited - London Branch ## At a glance - Posted by the employer: Not stated - First seen by OpenNash: Oct 13, 2026 - Last checked: Oct 20, 2026 - Listed for: 7 days - Location: London, United Kingdom[Apply on Arch Capital Group’s careers site →](https://archgroup.wd1.myworkdayjobs.com/careers/job/London-United-Kingdom/Underwriter-Senior-Underwriter--NACT_R25_1022) ## More jobs at Arch Capital Group ### [AVP, Automation & AI Delivery](https://jobs.opennash.com/companies/arch-capital-group/jobs/82d7c979e0cc192f0828/) London, United Kingdom ### [Change & Process Lead](https://jobs.opennash.com/companies/arch-capital-group/jobs/5ca4a739ad506fd0f85c/) London, United Kingdom ### [Claims Adjuster](https://jobs.opennash.com/companies/arch-capital-group/jobs/2a42e17e83c0418255c1/) London, United Kingdom ### [Process & Operational Excellence Delivery Manager](https://jobs.opennash.com/companies/arch-capital-group/jobs/4ebb2617229a619899aa/) London, United Kingdom ### [Senior Underwriter, Contingency](https://jobs.opennash.com/companies/arch-capital-group/jobs/181d3538078aa038bc0d/) London, United Kingdom ## Similar jobs at other companies ### [Underwriter - Construction, CAR](https://jobs.opennash.com/companies/chubb/jobs/d635dcb69a6f2b3930d7/) Chubb · London, United Kingdom ### [Underwriter](https://jobs.opennash.com/companies/sompo/jobs/c98d41b1dea085d5fe52/) Sompo · London, United Kingdom ### [Assistant Underwriter](https://jobs.opennash.com/companies/sompo/jobs/6e2e1d9df50b44e37322/) Sompo · London, United Kingdom ### [Construction Underwriter](https://jobs.opennash.com/companies/allianz/jobs/21771fd2be1410f43773/) Allianz · London, United Kingdom ### [Senior Underwriter – Construction](https://jobs.opennash.com/companies/qbe-insurance-group/jobs/bec7e7ba9a09b7064d00/) QBE Insurance Group · London, United Kingdom OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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