Trabajos backend en CardiffCrear alertas

Wealthify is an ambitious, multi-award-winning online investment company located in Cardiff, Wales. We’re here to inspire anyone to build their future wealth, and we do this by making investing easy, affordable, and accessible. We want to inspire as many people to invest as possible and we want people who are purpose driven and want to use and develop their skills to deliver an awesome experience to our customers. Our team is engaging, inquisitive, and inclusive, reflecting many different beliefs and backgrounds. We welcome people who can bring diversity to our team, and work towards a shared goal to deliver an exceptional investment experience. What your job will be: We are hiring a Mid-Level Web Engineer to expand our web capacity. Reporting to the Tech Lead you will join a cross-functional Squad and work closely with Automation Testers, Designers, Product Owners and Data Engineers. The role is primarily focused on web development with regular opportunities to contribute across the stack; you will be expected to deliver high quality features while working within the Squad’s agile processes. In this role you will contribute to the expansion and improvement of features on the web platform, grow and refine our web component library, and enhance user interfaces with a strong emphasis on accessibility and performance. Day to day work includes implementing and maintaining existing systems, suggesting and owning improvements where appropriate, collaborating on delivery priorities, participating in code reviews and mentoring more junior engineers. Success will require pragmatic problem solving - knowing when to dig deep and when to escalate - while keeping a user centric and performance first mindset. Our technical approach is vanilla first on the front end: semantic, accessible HTML, styling using SCSS and components implemented with standards-based Web Components. The back end is Microsoft .NET, primarily using event driven microservices architecture. Performance and accessibility are central responsibilities for this role; familiarity with web performance profiling, accessibility testing and frontend testing practices will be important for making measurable improvements. What we’re looking for: We are looking for someone with solid HTML and semantic markup skills, strong JavaScript fundamentals (ES6+) and proven experience building reusable components with Web Components or a comparable component model. A good eye for UI detail, experience with modular CSS/SCSS, Git based collaboration and frontend testing approaches are required. Experience with C# .NET backend work, CI/CD or regulated industries such as FinTech is desirable but not mandatory. Beyond technical expertise, we value engineers who are humble, curious and resilient: people who take ownership, communicate clearly, collaborate well across disciplines, accept and act on feedback, and mentor others when appropriate. The ideal candidate is pragmatic about time spent troubleshooting, attentive to detail and motivated to deliver a performant, accessible and user-friendly experience. Required Skills • Solid HTML and semantic markup, • Strong JavaScript fundamentals (ES6+), • Proven experience with Web Components (or comparable component model), • Modular CSS/SCSS, • Git-based collaboration workflows, • Frontend testing practices, • Web performance profiling, • Accessibility testing, • Good eye for UI detail, • Pragmatic problem-solving and knowing when to escalate Nice to Have • C# .NET backend experience, • CI/CD pipelines, • Experience in regulated industries (e.g. FinTech) What we give you in return • Competitive salary up to £50,000, • 24 days holiday a year – plus bank holidays (you will earn an extra day holiday for each full year you’re with us, up to 28 days), • Flexible/Hybrid working, • Flexible working hours in line with business needs And we have plenty of perks too! • Annual discretionary bonus which is linked to both the company and individual performance., • Private Medical Insurance, • Half a day off on your birthday, • Death in Service Cover (X3 your annual salary), • Income Protection Insurance, • Company Pension Plan - up to 6% Matched contributions, • Free office gym, • Free parking nearby

We are seeking an experienced Application Lead – Full Stack Developer to design, develop, and maintain scalable web applications while leading a team of developers. The ideal candidate will have strong expertise in Java full stack development, modern web frameworks, and backend services, along wit

As a backend engineer, you’ll work in a squad alongside other disciplines like product managers, marketers, user researchers, designers, mobile engineers, web engineers, data analysts, business analysts, writers, and more!. They’re all looking for additional Backend Engineers right now, we do a

We are looking for a Junior Frontend Software Developer.

A prominent tech community in Cardiff is seeking a Mid-Senior GenAI Engineer to develop backend services and multi-device applications.The role emphasizes collaboration with various teams and upholding security standards.Ideal candidates should have strong backend development skills and a passion fo

A leading fintech company in Cardiff seeks a motivated software developer to join their hybrid engineering team.You will be responsible for developing REST APIs and delivering stable applications aligned with user needs.Ideal candidates will have experience with Java, Spring Boot, and modern CI tool

They’re all looking for additional Backend Engineers right now, we do a standard interview process across all our collectives and at the end we will find the best match for you based on your skills, experience, preferences and aligning with the business need!. Our backend engineers have a variety

SRT Marine Systems plc (SRT) is a market leader in the domain of international marine surveillance technology and systems. We are a respected, established, and an ambitious multi-national company headquartered in the UK with a global customer base. The company has a worldwide impact in the marine sector by leading the next generation of Maritime Domain Awareness technologies "MDA", products, and systems that significantly enhance security, safety, environmental protection, and sustainability. Our customers are global and range from the largest national coast guards to individual vessel owners. SRT is an exciting company where high-quality results are rewarded. We are ambitious and constantly seek to innovate in order to deliver better products and services to our customers. We strive to make SRT a rewarding and challenging place to work, where talented, hard-working individuals have the opportunity to make a real impact across the marine industry. Role overview of our Senior Software Tester As a Senior Software Tester you will work on the continued build of our Marine Domain Awareness (MDA) platform which is used to create an operational picture of maritime activity. Our systems ingest large volumes of streaming data from both satellite and terrestrial, along with other sensor sources. You will play a key role in validating the behaviour of a distributed, event-driven system operating on real-time maritime data. Testing activities include both automation and manual testing. The role of Senior Software Tester role is a hybrid working position based from our Cardiff office, you will be required to attend office 1 day per week as per the team's requirements. How We Work Sprint Work Developmenttickets move across the Jira board through the delivery workflow Tickets reaching the Test stage are assigned to a tester Testers validate functionality using a mix of automated and manual testing approaches QA Release Cycles Every six weeks, we conduct a dedicated two-week QA phase where: Testers pause normal sprint board work The focus shifts to release-wide regression testing Both manual and automated test suites are executed to validate the full platform Senior Software Tester - Responsibilities (not exhaustive): Test new features and improvements delivered during sprint cycles Design, implement, and maintain automated tests, along with the execution of manual exploratory and regression testing when required Validate message-driven workflows across distributed services Test REST API endpoints supporting CRUD operations within the system Participate in release regression cycles and help validate production-ready builds Investigate issues, reproduce defects, and provide clear bug reports Work closely with developers and product teams to clarify requirements and ensure testability Senior Software Tester - Required Skills and Experience Strong experience as a software tester or QA engineer Experience testing complex distributed systems or backend platforms Experience creating automated tests Familiarity with tools such as Postman (or similar API testing tools) Ability to write test scripts using one or more scripting languages (e.g. Python, JavaScript, Bash) Ability to understand system behaviour through logs, messages, and APIs Strong debugging and problem-solving skills Experience working within Agile / Scrum teams Familiarity with Jira or similar issue-tracking tools Company Benefits Highly Competitive Salary and Pension Hybrid Working Development opportunities SRT Marine Systems plc are an equal opportunity employer. We are committed to creating an inclusive working environment for all employees and actively encourage applications from all sectors of the community

Senior Software Engineer (Full Stack - Angular Focus) £55,000 - £65,000 + package Cardiff (onsite approx. once/twice per month) Eligible for Security Clearance (must have resided in the UK for the last 5 years) CPS Group are working with a leading organisation to recruit a Senior Software Engineer to join a highly skilled, collaborative engineering team delivering enterprise-scale solutions in an agile environment. This is a full-stack role with a strong emphasis on frontend development. You'll be working primarily with Angular, which is essential for this position, while also contributing to backend services as the platform evolves. While Java experience is beneficial, this is not a pure Java role. Backend experience in Java or a similar language is required, with the expectation that Java will feature more prominently at certain stages of development. Key Responsibilities Design, build, and maintain high-quality frontend applications using Angular Contribute to full-stack development across modern, scalable systems Collaborate with backend engineers on API design and integration Work across the full software development lifecycle with a DevOps mindset Apply best practices including CI/CD, automated testing, and clean code principles Operate within an agile team, contributing to continuous improvement and technical decisions Ensure solutions meet security, performance, and quality standards Key Skills Required Strong commercial experience with Angular (essential) Full-stack development experience Backend experience using Java or a similar server-side language Understanding of modern software engineering best practices Experience working in agile delivery teams Familiarity with CI/CD pipelines (desirable) Exposure to cloud or containerised environments (beneficial, not essential) Contact: Zach Bennett - CPS Group Contact: Zach Bennett - CPS Group By applying to this advert you are giving CPS Group (UK) Ltd authority to hold and process your data for this specific role and any other roles we may deem suitable to you over time. We will not pass your data to any third party without your verbal or written permission to do so. All incoming and outgoing calls are recorded for training and compliance purposes. CPS Group (UK) Ltd is acting as an Employment Agency in relation to this vacancy. Our new privacy policy can be found here (url removed) src="(url removed)

Software Engineer (Full Stack - Angular Focus) £55,000-£65,000 + package Remote - Cardiff office visit once per month Eligible for Security Clearance (must have resided in the UK for the last 5 years) CPS Group are working with a leading organisation to recruit a Software Engineer to join a highly skilled, collaborative engineering team delivering enterprise-scale solutions in an agile environment. This is a full-stack role with a strong emphasis on frontend development. You'll be working primarily with Angular, which is essential for this position, while also contributing to backend services as the platform evolves. While Java experience is beneficial, this is not a pure Java role. Backend experience in Java or a similar language is required, with the expectation that Java will feature more prominently at certain stages of development. Key Responsibilities: • Design, build, and maintain high-quality frontend applications using Angular * Contribute to full-stack development across modern, scalable systems * Collaborate with backend engineers on API design and integration * Work across the full software development lifecycle with a DevOps mindset * Apply best practices including CI/CD, automated testing, and clean code principles * Operate within an agile team, contributing to continuous improvement and technical decisions * Ensure solutions meet security, performance, and quality standards Skills Required: • Strong commercial experience with Angular (essential) * Experience of JavaScript/TypeScript * Full-stack development experience * Backend experience using Java or a similar server-side language * Understanding of modern software engineering best practices * Experience working in agile delivery teams * Familiarity with CI/CD pipelines (desirable) * Exposure to cloud or containerised environments (beneficial, not essential) If interested in the role, please apply and contact Sam John: (url removed) By applying to this advert you are giving CPS Group (UK) Ltd authority to hold and process your data for this specific role and any other roles we may deem suitable to you over time. We will not pass your data to any third party without your verbal or written permission to do so. All incoming and outgoing calls are recorded for training and compliance purposes. CPS Group (UK) Ltd is acting as an Employment Agency in relation to this vacancy. Our new privacy policy can be found here (url removed)

SRT Marine Systems plc (SRT) is a market leader in the domain of international marine surveillance technology and systems. We are a respected, established, and an ambitious multi-national company headquartered in the UK with a global customer base. The company has a worldwide impact in the marine sector by leading the next generation of maritime domain awareness technologies "MDA", products, and systems that significantly enhance security, safety, environmental protection, and sustainability. Our customers are global and range from the largest national coast guards to individual vessel owners. SRT is an exciting company where high-quality results are rewarded. We are ambitious and constantly seek to innovate in order to deliver better products and services to our customers. We strive to make SRT a rewarding and challenging place to work, where talented, hard-working individuals have the opportunity to make a real impact across the marine industry. We're seeking an experienced and versatile Senior Software Engineer - Sensors join our Edge Team. This is a rare opportunity to help define and deliver our cutting-edge Maritime Surveillance and Fisheries Monitoring solutions, working at the intersection of hardware, software, and advanced sensor technologies. About the role of Senior Software Engineer - Sensors - (not exhaustive): In the Edge Team, you'll work on the "sensors at the fringe" fixed and mobile surveillance equipment such as radars, cameras, RDF, AIS, and other specialist maritime sensors. Your mission as a Senior Software Engineer - Sensors will be to integrate, calibrate, and optimise these systems in non-production environments, building the software that makes their outputs usable for downstreamsystems and training our Delivery Team for field deployment. The role spans multi-domain sensor fusion, AI-assisted analysis, anomaly detection, augmented reality, autonomous sentry operation, and evidence collection. You'll work closely with colleagues across software, hardware, data science, and infrastructure to bring innovative, high-performance edge solutions to life. What You'll Be Doing - Senior Software Engineer - Sensors Design, develop, and maintain edge-sensor solutions focusing on performance, reliability, and scalability. Build test infrastructure to capture and analyse quality and performance metrics Work across the stack - UI, backend, robotics, device integrations, networking - learning new technologies as needed Collaborate with cross-functional teams to plan, build, and test complex functionality Diagnose and resolve technical issues through root cause analysis Automate SDLC processes to improve efficiency and reduce manual effort Produce and maintain technical documentation Mentor peers, contribute to code reviews, and promote collaborative working practices What You'll Bring - Senior Software Engineer - Sensors Strong engineering mindset with experience in one or more of: Microsoft .Net, GoLang, Python, C++, Rust. Broad exposure to remote sensing disciplines, including: Mathematics, physics, and geospatial mapping Working with sensor hardware and electronics Networking principles, protocols, and services Application development across embedded, desktop, and web platforms Video and radar signal processing (e.g., OpenCV) AI-based, hardware-accelerated image processing (e.g., YOLO) Familiarity with Enterprise Systems architecture Experience with version control systems (Git) and SDLC automation tools Excellent problem-solving, debugging, and collaboration skills Why Join Us? Work on mission-critical maritime surveillance systems used worldwide Be part of an ambitious, innovative, and supportive team making a direct impact on global maritime safety and sustainability Enjoy flexible hybrid working Competitive salary and benefits, including: Matched pension contributions up to 5% Private health care Development and training programmes SRT Marine Systems plc is an equal opportunity employer. We are committed to creating an inclusive environment for all employees and welcome applications from all backgrounds

Senior Backend Engineer – High-Scale Systems | Python & FastAPI | Security SaaS. Senior Backend Engineer – High-Scale Systems | Python & FastAPI | Security SaaS. They've completed Series A funding, raising $29 million across three funding rounds, and are now seeking a Senior Backend Engineer.

Compensation: Competitive, based on location and experience .Location: UK or Turkey (Hybrid – Office & Remote).Keepnet is an AI-driven SaaS platform experiencing strong, sustained growth in the UK with growing global momentum, helping organisations manage human cyber risk at scale.Keepnet runs

As a Senior Engineer you will play a critical role in the development and maintenance of the backend aspects of the pricing system for our sportsbook and work alongside our quantitative analysts to deliver our in-house pricing solution. This position will be able to come in and have a lot of ownersh

We’re hiring a senior backend engineer to join a disciplined, senior team responsible for the platform behind Eequ, where engineers have real ownership and operate with high autonomy. Build and operate the backend platform that powers a real marketplace handling bookings, payments, and reporting f

The role involves the design and development of backend services and infrastructure for Machine Learning workloads.

Backend Developer Romsey, Hampshire (Hybrid - 3 days office / 2 remote, flexible)£45,000 - £50,000 + BenefitsOOP, PHP, LaravelMy client build innovative SaaS solutions that help organisations monitor, manage, and optimise critical infrastructure.

A high-growth SaaS company is seeking a Senior Manager – Cloud Talent Acquisition to lead backend development using PHP/Symfony.

A fast-growing cybersecurity startup is seeking a Senior Python Engineer to design and develop scalable backend systems using Python and AWS serverless technologies.

A leading online gaming company is seeking a Senior Backend Engineer for their Quantitative Sports team. This role will involve developing backend solutions for a pricing system while collaborating with quantitative analysts.

Own the full backend lifecycle. Design, develop, test, monitor and maintain backend services for our casino platform. Strong proficiency in Python (or another backend language with willingness to learn Python).

Backend Junior Software Engineer - Remote 4 days a week (Europe). Senior Product Engineer - Backend. Engineers who have designed secure backend systems including common design criteria for systems such as authentication or data encryption.

A leading technology company in the United Kingdom is seeking a Back End Engineer specializing in Python and Azure.You will deliver scalable data infrastructure and transform financial processes into automated workflows.The ideal candidate has extensive production experience with Python, strong arch

A UK-based technology firm is seeking a Senior Software Engineer for a 6-12 month contract.The ideal candidate will possess a bachelor's degree in computer science, extensive Calypso experience, and a strong background in Capital Markets.Responsibilities include developing solutions to meet business

A leading global tech consultancy is seeking a C# /.Net Developer to join their fully remote team in the UK.The ideal candidate will have strong experience in C# and either current or expired Security Clearance, working on confidential projects.This mid-senior level role involves enhancing core solu

A leading mobile gaming company is seeking a Senior Server/Backend Engineer to join their Monopoly GO! game team remotely.

A leading software company, renowned for its dynamic and ever-evolving nature, is seeking a Senior Backend Developer to join their team. As a Senior Backend Developer, the successful candidate will be at the forefront of developing and enhancing cutting-edge products. Join a company that values grow

Senior backend skills with at least 5 years of experience with Java, and a good understanding of Python (FastAPI, Flask…), SQL based databases. Senior Software Developer with a Backend Focus. To professionalise our product development and continue our growth path, we are currently looking for a se

A leading HealthTech company in the UK is seeking a Software Engineer to design and build production-grade backend systems using Python and FastAPI. Ideal candidates have 4+ years of backend development experience and a passion for AI systems and real-world impact.

A leading software development company in the United Kingdom is seeking a Senior Software Engineer to innovate and develop next-gen software solutions.The role involves designing, optimizing, and troubleshooting platform components, requiring at least 4 years of relevant software development experie

A next-generation sports betting platform is seeking a Senior Backend Engineer to develop and maintain backend systems.

A leading global technology company is seeking a Senior Backend Engineer to join their mission of empowering small and medium-sized businesses through innovative technology. Ideal candidates will have backend development experience and proficiency with technologies like Java and MySQL.

A leading financial technology firm is hiring a Backend Engineer to build and maintain critical integrations with various third-party APIs.

Backend Developer (Kotlin/Java, Android APIs).

A leading SaaS provider in the United Kingdom seeks a skilled Back-end Engineer.This role involves developing high-quality software in.NET and C#, mentoring team members, and contributing to the complete software life cycle.Candidates should have strong experience with technologies such as Docker, A

You’ll design and build high-performance backend services, improve latency and reliability at scale, and contribute to the architecture of a distributed microservices ecosystem running in Kubernetes. Design, develop, and optimize backend services in a modern microservices architecture.

Objectively restore stand-alone markets rather than enterprise-wide products.Uniquely underwhelm best-of-breed mindshare through adaptive niches.Seamlessly parallel task open-source content without resource sucking technology.Be involved in every step of the product design cycle from discovery and u

We need senior backend engineers who can take ownership of complex problem spaces, ship production‑grade services, and help us build the engineering foundation for the next generation of onchain payments. This is a Senior Backend Engineer position on the WalletConnect Pay team. The common thread i

A technology firm in the UK seeks a Backend Engineer to join a collaborative team working on AI-powered solutions for the insurance sector.

A tech company in the United Kingdom is seeking a product-oriented Backend Engineer to join its Identity Security team. This role involves designing and implementing backend services and APIs for access control auditing and identity workflows, requiring proficiency in Go or Rust and Linux systems en

A modern gaming platform in the UK seeks a Senior Backend Engineer to design and maintain backend systems for their suite of Free to Play games. This role emphasizes ownership of the backend architecture and requires proficiency in Python, RESTful APIs, and experience with PostgreSQL.

You'll design and maintain backend systems for digital asset products and work with blockchain integrations.

A technology recruitment agency is seeking a Senior Back End Engineer for a remote-first role, requiring candidates to reside in the UK.The position focuses on building scalable systems using the MERN tech stack and offers exceptional career progression opportunities.Ideal candidates will have over

As a Senior Backend Developer, you will be part of the team that develops the backend components of all Bitfinex services (main trading application, Lightning Network support, Blockchain integrations, etc. Senior Backend Developer - Node. Scalability: ensure backend services remain smooth, responsiv

We are looking for a Senior Backend Engineer with extensive experience in the healthcare domain to join our application modernization team.

A leading game development firm in the United Kingdom is seeking a Principal Backend Engineer to lead the delivery and deployment of backend services for game projects.

We’re hiring a Member of Technical Staff (Backend/Infra) at Ona. Ensure reliability and continuous evolution of your focus area, whether frontend, backend, or infrastructure. Note: if you are more specialized in one over the other (backend vs infrastructure), please still apply!.

A financial technology firm is seeking a skilled Go Developer in Cardiff for a high-performance role in backend systems.