Catalitium

Senior Jobs in UK

Browse 86 curated roles with transparent salary cues so you don't have to open ten tabs to compare offers.

Updated 1 month ago
86 curated results Filters applied title: senior country: UK Clear

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Stream hiring Senior Software Engineer

Stream Londres e Regiao, United Kingdom 2025-12-04 Est. GBP 40k–70k
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Stream is an equal opportunity workplace. Show less

Opus 2 hiring Senior Developer

Opus 2 Edinburgo, Esccia, United Kingdom 2025-12-04
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You'll set high standards of engineering craft, mentor across squads, and help rapidly expand AI workflows across our platform. Strong mentorship skills and ability to scale engineering standards across squads.

Senior / Mid-Level Full-Stack Software Engineer C#/.NET

Mondrian Alpha Londres e Regiao, United Kingdom 2025-12-04 Est. GBP 40k–70k
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A leading systematic investment firm is expanding its Post-Trade Engineering function and is hiring a highly capable Full-Stack Software Engineer to build mission-critical reporting, investor-facing, and post-trade systems. This role is ideal for someone with strong engineering fundamentals, strong academics, and experience across modern front-end frameworks (Angular preferred), who wants to operate in a technically rigorous, data-centric environment.

Harrington Starr hiring Senior Data Developer

Harrington Starr Londres e Regiao, United Kingdom 2025-12-04 Est. GBP 40k–70k
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Build cloud-based data lake environments (AWS / Databricks). Strong knowledge of market data and financial time-series.

RAPP hiring Senior UX Designer

RAPP New York, New York, United States 2025-11-28
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This is an exciting opportunity to grow your career while working on enterprise-scale design systems, personalized digital experiences, and innovative AI-driven solutions. Your Responsibilities Design System & Component Library Work: Build and maintain enterprise-scale component libraries and design systems in Figma for major clients Create and organize email component libraries with systematic documentation Ensure design consistency across web, email, and app experiences Collaborate with developers to ensure components are feasible and implementable Hands-On Design & Prototyping Create wireframes, user flows, and clickable prototypes at varying levels of fidelity Translate user journeys, personas, and journey maps into tangible design solutions Design and iterate on digital experiences for personalization campaigns Participate in innovation projects including AI-enabled experiences Collaboration & Communication Work closely with technology and creative teams to balance feasibility and brand alignment Present your design rationale to internal teams and occasionally to client stakeholders Participate in discovery workshops and cross-functional collaboration sessions Annotate designs clearly to communicate intent to developers and stakeholders User-Centered Practice Apply user-centered design principles to solve real business problems Make evidence-based design decisions grounded in UX best practices Advocate for user needs throughout the design process Stay current on digital trends, AI capabilities, and emerging technologies Required Skills Essential Skills: 3+ years of UX/UI design experience (agency experience a plus) Strong proficiency in Figma including components, variants, variables, tokens, and design systems Experience working with enterprise level Figma designs Experience with email design and understanding of email constraints Demonstrated ability to create clean wireframes, flows, and prototypes A strong portfolio that shows your design process and thinking Excellent communication skills � both visual and written � to explain your design decisions Detail-oriented mindset with ability to work in fast-paced, ambiguous environments Soft Skills That Matter Curiosity and eagerness to learn � you ask questions and seek to understand Empathy � you genuinely care about users and their pain points Problem-solving mindset � you love tackling challenges creatively Collaboration � you're a team player who works well with diverse disciplines Adaptability � you can switch between structured design system work and innovative exploration Strong writing skills � you can articulate design decisions clearly Technical Knowledge Understanding of responsive design and cross-device/cross-platform considerations Familiarity with accessibility standards (WCAG, ADA) or eagerness to learn Basic understanding of HTML/CSS capabilities and constraints Knowledge of how AI and personalization technologies impact UX Education Bachelor's degree in Design, HCI, or related field (or equivalent experience) Nice To Have Experience with the Emailify plugin or similar email design tools Precision marketing or personalization experience Exposure to design systems at scale (Material Design, Apple HIG, etc.) Background in data visualization or presenting research insights Understanding of healthcare/pharma or telecommunications industries Familiarity with usability testing or research methods Why This Role Is Special Enterprise Impact: Build design systems that will be used by millions of users across major brands Innovation Opportunities: Work on cutting-edge projects like AI chatbots and personalized digital experiences Career Growth: Learn from senior UX practitioners while getting hands-on experience with Fortune 500 clients Variety: Balance structured design system work with innovative, experimental projects Collaborative Culture: Work with talented strategists, creatives, and technologists who value UX What Successful Candidates Will Show Us In your portfolio and interviews, we're looking for evidence that you: Follow a user-centered design process Can articulate your design decisions with clear rationale Show growth mindset and curiosity in how you approach problems Demonstrate collaboration skills and how you work with others Have produced quality work even with limited experience Understand when and why to use different UX methods and deliverables Our Hybrid Work Model RAPP's current hybrid model is designed to enable in-person connections and collaboration that is core to our culture, while also supporting flexibility for all employees.

Rhythm Careers hiring Senior Interior Designer

Rhythm Careers London Area, United Kingdom 2025-11-26
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Every project feels completely unique. You�ll also be helping mentor junior team members and supporting a collaborative studio culture.

Senior Software Engineer

The Difference Engine London, England, United Kingdom 2025-11-25
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Are you an experienced Senior Software Engineer who enjoys greenfield development and likes technical ownership? Our client, profitable, well-funded and growing at 30% YoY, is looking for a Lead Software Engineer to run their Web Engineering team.

Hays hiring Senior Project Manager

Hays City Of London, England, United Kingdom 2025-11-25
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Strong project management background, with recent experience in insurance, is essential. Experience implementing Policy Administration Systems (PAS) for specialty insurance.

Senior Project Manager - deverellsmith

deverellsmith London, England, United Kingdom 2025-11-25
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Experience & Skills Required Strong construction background gained within leading consultancies. Desired Skills and Experience Project Management Construction management contract management contract administration quantity surveying new build refurbishment residential regeneration Show less

Senior Full Stack Software Developer

Matched City Of London, England, United Kingdom 2025-11-25
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Senior Full Stack Software Developer - Responsibilities Design, develop, and maintain advanced applications. Full Stack Developer / Full Stack Engineer / Senior Full Stack Developer / Senior Full Stack Engineer / Software Engineer / Senior Software Engineer / Software Developer / Senior Software Engineer Show less

Senior Cloud Architect (Technical) (Multiple)

Cloudscaler Londra, Inghilterra, Regno Unito 2025-11-25
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About Us We are experts in building central cloud platforms, cloud risk mitigation and cloud operating models; providing thought leadership to central government and private enterprise organisations to help them unlock the true value of cloud. Providing technical leadership to cross-functional delivery teams and setting technical direction for enterprise-scale cloud projects.

Cloudscaler hiring Senior Cloud Engineer (AWS)

Cloudscaler Londra, Inghilterra, Regno Unito 2025-11-25
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Location: Central London � Hybrid - circa 3 days onsite in Central London Cloudscaler are based in Central London, with customers across the UK. About The Role We�re looking for an experienced Senior AWS Cloud Engineer to lead the build and operation of secure, enterprise-scale cloud platforms for central government and private enterprise organisations clients.

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How we curate roles

Every listing is sourced from employer feeds and hand-reviewed for clarity, compensation, location accuracy, and spam signals before it is surfaced in search.

  • Titles and locations get normalized so filters stay reliable.
  • Suspicious redirects or missing companies are flagged and removed.
  • We rotate fresh roles daily so the feed stays under 7 days old.

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Salary tags blend employer provided ranges with Catalitium estimates. We mark ranges with Est. labels, note any missing data, and never inflate compensation to boost clicks.

Currency harmonized to USD/EUR/GBP/CHF to avoid surprises.

Outliers are reviewed manually before they appear on a card.

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