Jobs for senior software engineer- java at London

As a Senior Engineer, you will play a critical role in designing, developing, and optimising our innovative solutions. You’ll be responsible for driving the technical execution of projects, mentoring other developers, and ensuring our platform remains scalable, reliable, and secure. This role requires a blend of hands‑on coding, technical leadership, and...

This range is provided by Workonomics. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.Base pay rangeSize | 2k globally, 280 in London (80 in Engineering, Design, Product)Level | Senior, or LeadAreas | backend infrastructure, distributed systems, data processingBased | London (Zone 1)Hybrid | 3 days a...

Senior Software Engineer (Full Stack) Title of Role: Senior Software Engineer (Full Stack) Location: UK, hybrid Company Stage of Funding: Venture Round — AI, B2B, Enterprise, Software Development Office Type: Hybrid Salary: $80K–$80K Company Description We're representing a forward-thinking company that is developing the next generation of HRIS...

## **About Flow** Flow Engineering is an AI-native requirements platform for modern engineering organizations, enabling hardware teams to collaborate with AI agents to design, validate, and evolve complex systems with speed and rigor. ## **About the role** Flow is seeking software engineers to build AI-powered capabilities that help teams author, review,...

Reddit is a community of communities. It’s built on shared interests, passion, and trust and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 97M+ daily active unique visitors, Reddit is one of the...

Xceedance is seeking a Java Software Engineer with growing AI/ML exposure to join our UK team in London. This role focuses on building cloud-native Java microservices on the BPA platform, applying AI tooling to accelerate delivery and improve code quality.The candidate should be comfortable with RESTful APIs, SOLID design, and RAG patterns, in an Agile...

Senior Software Engineer - Python Experian London, United Kingdom We are looking for a Backend Senior Software Engineer to help design, build, and operate backend systems. Reporting into our Engineering Director, you will work on production software used by customers and partners, and your work will have an impact on the reliability, usability, and evolution...

We're unlocking access to the NHS, because healthcare is not truly free until it's truly accessibleThe world’s best healthcare, for free. It's not a new idea, it's called the NHS. But the largest healthcare provider is fundamentally broken. Patient satisfaction is at an all time low, and the biggest reason cited is lack of access. So we’re on a mission...

Evolve, enhance, and modernise large-scale systemsDrive adoption of technologies such as GoImprove system performance, reliability, and scalabilityDevelop automation for infrastructure deployment, monitoring, and scalingBuild tools and processes supporting continuous integration and delivery (CI/CD)Make data-guided decisions affecting core business metrics...

Job SummarySenior Software Engineer at Checkout.com will develop next‑generation payment technologies to help merchants increase acceptance rates, reduce costs, combat fraud, and create outstanding customer experiences. Working across Checkout.com’s portfolio of products, you will design, build, and maintain scalable, high‑availability systems while...

As a Senior Software Engineer II, you operate with a wide sphere of influence. You will own complex, highly ambiguous technical challenges end-to-end, handling unexpected hurdles independently and gracefully. Your role goes beyond individual team delivery; you will drive systemic, organizational change and shape the long-term technical direction of our...

Software is eating the world, but AI is eating software. We live in unprecedented times – AI has the potential to exponentially augment human intelligence. Every person will have a personal tutor, coach, assistant, personal shopper, travel guide, and therapist throughout life. As the world adjusts to this new reality, leading platform companies are...

SeniorSoftware Engineer (Python)About Anemoi Marine TechnologiesAt Anemoi,we’reon a journey to shake up the maritime industry withcutting-edgeRotor Sail technology. From our headquarters in the UK and production base in China,we’redeveloping and delivering advanced, automated wind-assisted propulsion systems that help shipowners and operators reduce fuel...

Salary: £59,000 - 99,000 per year Requirements: We are looking for a senior engineer with practical experience in high-performing engineering teams. We value advanced working knowledge of a general programming language such as Python, Java, C#, or Typescript. We value working knowledge of data management technologies such as SQL, NoSQL, or Databricks. We...

About the Company Capital on Tap is a financial platform that offers a best‑in‑class business credit card, spend management platform, savings product, and other tools to help small businesses. The company has 1,000+ employees and handles £20bn in annual card spend. Role Overview We are looking for Senior Full‑Stack Engineers to build credit card and...

At Ravical, we’re on a bold mission to transform how SME advisory services are delivered and scaled by leveraging AI-first, agentic products. By combining cutting-edge AI technologies with a commitment to simplicity and innovation, we are building a frictionless product that empowers our European customers to deliver reliable and proactive advice. Located...

Valarian Technologies is a dual-use technology company building critical tools to safeguard the future in an era of evolving global security challenges. We're rethinking security beyond traditional military domains, addressing asymmetric threats that impact our technological advantage, economic strength, and democratic institutions. We build Acra – the...

About FreetradeFreetrade’s mission is to become the default place to invest. Investing has been too complicated and expensive for too long, keeping millions from making the most of their savings.We’re changing that.We’re building our team and looking for people who are excited to reshape how our customers invest and grow their wealth. If you’re...

Senior Software EngineerLocation: London, UK (Canary Wharf) Duration: Sep 2026 – June 2027 On-site Expectation: Up to 5 days per week in officeBrief about the Team & Fractal: Fractal Analytics is Leading Fortune 500 companies leverage Big Data, analytics, and technology to drive smarter, faster and more accurate decisions in every aspect of their business....

About the RoleSenior Software Engineer — AI & Multimodal Data PlatformsWe are seeking an experienced Senior Software Engineer to help design and build next-generation AI systems used in Defence, Security, and Resilience environments. You will work on a cutting-edge multimodal data fusion platform that transforms large-scale information streams into...