Senior Fullstack Developer

Join Version 1 as a Senior Fullstack Developer, where you will be pivotal in shaping innovative digital solutions. As a member of our dynamic Digital, Data, and Cloud departments, you will collaborate with cross-functional teams to deliver high-quality software products that meet our clients' needs. Your expertise will guide the development of both front-end…

Location: London, HybridRole Type: 12 Month ContractRate: £800 - £900 per dayDelta Capita is on the lookout for an experienced Senior Rates Developer specializing in Java to join our dynamic Global Markets Technology team. In this pivotal role, you will be part of a specialized unit dedicated to developing cutting-edge pricing, eTrading, and eRisk capabilities tailored for Rates and FX products.Your team will be responsible for creating low-latency, highly available pricing components that facilitate:Pricing for Rates across forwards, futures, swaps, and bondsFX forward and broker pricing solutionsAlgorithmic and electronic execution workflowsPricing control tools and configuration frameworks utilized by traders and quantsOn-demand quoting and curve management across eCommerce channelsIntegration of innovative quantitative models and external market data feedsThis role demands hands-on engineering prowess within a fast-paced and high-performance trading technology environment.

About 1st FormationsAt 1st Formations, we empower entrepreneurs to confidently start, manage, and expand their businesses. Our mission is to eliminate the hurdles of company formation, compliance, accounting, and payroll, ensuring that these essential services are seamless and reliable from day one. This allows founders to focus on what truly matters: building and scaling their businesses.As a leading provider of company formation and compliance services in the UK, we are dedicated to creating a modern, fully integrated technology platform that supports entrepreneurs at every step of their journey. Our platform unifies formation, compliance, accounting, payroll, and ongoing business support into one cohesive experience.No more disjointed solutions or outdated workflows masquerading as software. We offer a single, scalable platform designed for ambitious founders looking to move quickly, stay compliant, and grow with confidence.Why Join Us Now?You will be part of a dynamic business experiencing significant momentum, clear goals, and ample opportunities for career advancement.£18 million annual revenue, including £9 million in ARROver 1 million companies formedCertified B Corp and Carbon Neutral BusinessForecasted growth of 5x–10x over the next three yearsThe RoleWe are seeking a Front-End Developer with extensive experience in modern JavaScript frameworks and HubSpot CMS to design and maintain high-performance, responsive marketing websites. This role emphasizes developing scalable front-end solutions, integrating CMS-driven content, and collaborating with marketing and digital teams to create engaging, optimized user experiences.Key Responsibilities· Develop and maintain front-end applications utilizing JavaScript, HTML, CSS, and frameworks such as Next.js.· Design and customize templates and components within HubSpot CMS.· Integrate front-end applications with CMS-driven and CRM-based content.· Create responsive, accessible, and high-performing user interfaces using modern CSS techniques.· Work within legacy or bespoke CMS environments while adhering to best development practices.

We are seeking a highly skilled Senior Java Developer to join our dynamic team at Qurious Associates Limited. In this role, you will leverage your expertise in Java development to design, implement, and maintain robust applications that meet the needs of our clients. You will collaborate with cross-functional teams to deliver high-quality software solutions using modern development practices.

Join Version 1 as a Senior .NET Developer and take your career to the next level. We are seeking a highly skilled and experienced developer to work on exciting projects that drive innovation and excellence.In this role, you will be responsible for designing, developing, and maintaining high-quality software applications using the .NET framework. You will collaborate with cross-functional teams to define and implement solutions that meet business requirements.

We are seeking a talented and experienced Senior Java Developer to join our dynamic team at Minderacraft. As a key member of our development team, you will be responsible for designing, developing, and implementing high-quality Java applications that meet the needs of our clients. You will work closely with cross-functional teams to deliver innovative solutions that drive business success.

Galaxy Digital Services is searching for a Lending UI Developer to join the London team. This role sits at the intersection of finance and technology, focusing on digital assets and blockchain innovation. The company is known for its institutional digital assets platform, which covers trading, investment banking, asset management, staking, self-custody, and tokenization technologies. Galaxy also invests in and operates data center infrastructure that supports artificial intelligence and high-performance computing. The team brings together deep crypto expertise and institutional knowledge, working to shape the future of Web3 and AI under the leadership of CEO Michael Novogratz. What you will do Develop and maintain user interfaces for lending products within the digital assets platform Collaborate with teams across trading, asset management, and technology to build effective solutions Contribute to products that support blockchain and digital asset innovation Requirements Experience building UI for financial or digital asset platforms Comfort working in a collaborative, high-achieving team Based in or able to work from London Our values Strive for excellence Be selective for greater impact Maintain high alignment and allow for flexibility Encourage transparent disagreement Support independent decision-making Foster collaborative teams Galaxy Digital Services has offices in New York City and across North America, Europe, the Middle East, and Asia. Learn more about the company's products and businesses at www.galaxy.com.

At Zaizi, we are on the lookout for a highly skilled Senior Backend Software Developer who possesses exceptional technical expertise and a genuine enthusiasm for enhancing user experience and outcomes. In this role, you will take ownership of your deliverables while also collaborating with a multidisciplinary team to foster innovation and share creative ideas.Our work environment is inclusive, modern, friendly, and democratic, where we value bright, positive-thinking individuals with a proactive mindset. If you thrive on challenges and aspire to excel in your field, you will find a perfect fit with our team!

Senior Ruby on Rails Developer (Contract)5iveTech Recruitment is seeking an accomplished Senior Ruby on Rails Developer to join a rapidly expanding tech company based in Central London.We are in search of a highly skilled Ruby on Rails Engineer proficient in Test-Driven Development (TDD) and Pair Programming, ready to thrive in a collaborative and innovative environment.If you are a Contract Senior Ruby on Rails Engineer who enjoys contributing to diverse projects in a solution-focused setting, we invite you to send your CV to Sam Wellalage at 5iveTech Recruitment.

Join our dynamic team at MicroStrategy as a Senior Business Development Representative. In this pivotal role, you will spearhead efforts to identify and engage prospective clients, showcasing our innovative analytics solutions. Your strategic approach will help drive growth and expand our market presence.As a vital member of our sales department, you will collaborate closely with cross-functional teams to tailor our offerings to meet client needs. Your expertise in business development will be crucial in building long-lasting relationships and ensuring client satisfaction.

We are seeking a seasoned Senior Java Developer/Architect to join our dynamic team at dev2 in London. In this pivotal role, you will leverage your extensive experience in Java development and architectural design to lead innovative projects and drive technical excellence.The ideal candidate will possess a strong background in software engineering principles and practices, with a proven track record of designing scalable and robust systems. You will collaborate closely with cross-functional teams to define technical requirements and implement best practices in software development.

About Checkout.com Checkout.com powers digital payments for some of the world’s leading brands, including eBay, ASOS, Klarna, Uber Eats, and Sony. The company handles billions of transactions each year, supporting businesses across the globe with a reliable payment platform that operates behind the scenes. Headquartered in London and operating from 19 offices on six continents, Checkout.com has built a reputation for seamless money movement and a commitment to constant improvement. The team values performance and growth, offering a chance to shape a career in the evolving fintech sector. Role Overview: Senior Business Development Lead The Senior Business Development Lead will join the Consumer team, which focuses on delivering standout payment experiences through the Connect suite, including flagship products like Flow and Remember Me. This position centers on driving the adoption of Remember Me and collaborating with global merchants to develop new financial product offerings. This is a highly collaborative role, working closely with Global Commercial and Sales teams. The position calls for expertise in consumer products and a proactive approach to uncovering new opportunities within Checkout.com’s merchant network and beyond. What You Will Do Grow Consumer Adoption: Develop and execute a commercial strategy to rapidly expand the user base for Remember Me. Partner with Sales: Work alongside Sales and Commercial Account Management to identify high-potential merchants. Support teams in presenting and integrating Flow, Remember Me, and future product innovations. Advise Merchant Partners: Act as a strategic advisor to key merchants, gathering market insights that help shape the product roadmap. Coordinate with Product and Engineering: Work closely with Product and Engineering teams to ensure offerings reflect real market needs. Location This role is based in London.

As a Senior Backend Developer specializing in Ruby on Rails, you will play a pivotal role in architecting, developing, and validating server-side logic for web applications. Your expertise will be essential in crafting efficient, reusable, and robust Ruby code, while optimizing systems for peak performance and scalability. You will work collaboratively within cross-functional teams, integrating front-end components into our applications. Your responsibilities will also include conducting code reviews, mentoring junior developers, and converting business requirements into effective technical solutions.The ideal candidate will possess a Bachelor's or Master's degree in a related discipline, along with a minimum of eight years of hands-on experience in Ruby on Rails development. You should be well-versed in various software testing methodologies, demonstrate strong analytical skills, and have excellent proficiency in English.

Join MicroStrategy as a Senior Business Development Representative and play a pivotal role in driving our sales strategy and expanding our market reach. In this position, you will leverage your expertise to identify new business opportunities, build strong relationships with potential clients, and contribute to our overall growth objectives.

Why Choose Verifone?With over 40 years of excellence in the electronic payment technology sector, Verifone has emerged as a leader in providing innovative payment solutions globally. We proudly collaborate with top retailers, banks, and partners to enhance payment processing systems worldwide.Our work environment is diverse, dynamic, and fast-paced, offering employees ample opportunities for professional growth. At Verifone, we strive for excellence in our products and services, focusing relentlessly on customer satisfaction. Join us in our commitment to innovation, as we pave the way for secure payment solutions across various markets.We believe in the power of collaboration and are currently offering a hybrid work schedule while continually assessing our attendance policy to optimize employee engagement.Role OverviewWe are looking for aSenior Software Developer in London to design, develop, and maintain backend services for our global payment gateway. Your expertise will contribute to building high-performance, secure microservices using Java and Spring Boot. You will collaborate with various teams to ensure our systems scale reliably across regions and partners.This role plays a crucial part in enhancing the reliability, security, and performance of high-volume financial transactions worldwide, making your engineering decisions vital to our success.Ideal candidates are senior backend developers passionate about complex distributed systems, modern Java platforms, and cloud-native architectures.

Join Version 1 as a skilled Python Developer, where you will play a pivotal role in designing and implementing robust applications and systems. Collaborate with a talented team in our Digital, Data, and Cloud departments to deliver innovative solutions that meet our clients' needs.

About ClickHouseCelebrated as one of the most groundbreaking and rapidly expanding private cloud organizations, ClickHouse has earned a spot on the prestigious 2025 Forbes Cloud 100 list. With an impressive clientele of over 3,000 and an annual recurring revenue (ARR) surging by more than 250% year-over-year, ClickHouse is at the forefront of real-time analytics, data warehousing, observability, and AI workloads.The company’s remarkable growth trajectory was recently underscored by a successful $400M Series D funding round. In just the past three months, notable clients such as Capital One, Lovable, Decagon, Polymarket, and Airwallex have either adopted our platform or enhanced their existing engagements. These partnerships complement our established roster of AI pioneers and global brands, including Meta, Cursor, Sony, and Tesla.Join us on our mission to revolutionize how organizations leverage data. Be a part of our exciting journey!Note: This position may be based in London, Berlin, or Amsterdam, with regular travel expected.

Join Capco, a global technology and consulting firm dedicated to the financial services industry, as a Senior .NET Developer specializing in Capital Markets. In this role, you will leverage your expertise in .NET technologies to design, develop, and implement high-performing applications that meet the demands of our clients in the capital markets sector.

Join our esteemed client, a prominent arts venue situated in the vibrant heart of London, as they seek a highly skilled Senior React.js Developer. In this pivotal role, you will engage with innovative projects from inception to completion, ensuring they are both technologically robust and visually captivating.We are in search of developers who take pride in crafting elegant code. You will collaborate closely with our client on various agile projects, contributing to the delivery of specific products within a multidisciplinary, talented digital team. Your ability to navigate complex digital projects will be essential.

Are you a dynamic and strategic thinker looking to take your career to the next level? Schillings is seeking an experienced Senior Business Development Manager to join our innovative team. In this pivotal role, you will be responsible for driving growth and expanding our market presence through strategic partnerships and client engagements.Your mission will include identifying new business opportunities, developing relationships with key stakeholders, and leveraging your expertise to enhance our service offerings. If you thrive in a fast-paced environment and have a passion for business development, we want to hear from you!