Backend engineer jobs in CardiffCreate job alerts

I’m working with a growing tech team in central Cardiff that’s looking for a QA Test Engineer to join them on a permanent basis. They operate a hybrid working model, usually coming into the office twice a week. You’ll be joining a close-knit team of 12, including 6 developers and 2 QA engineers....

Social network you want to login/join with: col-narrow-left Bonsai Smart Wealth cardiff, United Kingdom Other - Yes col-narrow-right 2 04.06.2025 19.07.2025 col-wide Job Title: Senior Full Stack Developer (Django + React Native / Expo) Location: Remote (UK timezone 4 hours +/- overl...

As a product backend engineer you'll work in a squad alongside 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 standard interview...

Location: Remote (Global) Core Stack: Ruby on Rails (API-only), Sidekiq, MySQL, AWS (EC2, RDS, EFS), Highcharts.js (data consumers) About INDY: INDY powers every operational layer of a movie theater—from ticket sales and concessions to scheduling, accounting, and real-time business intelligen...

Social network you want to login/join with: Role Highlights: - Position: Python Engineer - Location: Remote within the UK - Employment Type: Permanent - Compensation: Competitive market salary plus equity options Overview: An innovative EdTech start-up is seeking a skilled Python Engineer ...

We're looking for a growth minded Senior Staff backend engineer with strong product experience. Partner with a Senior Engineering Manager supporting the collective and provide technical leadership across multiple squads and ~20 engineers. One of our staff engineers has written a detailed blog on ...

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!. We're usually always hiring for Backend Engineers, so there's no closing da...

Social network you want to login/join with: col-narrow-left Maze cardiff, United Kingdom Other - Yes col-narrow-right 4 04.06.2025 19.07.2025 col-wide Senior Full Stack AI Engineer | Node.js | React.js | LLMs | Remote Europe | Up to £100K Maze is proud to be partnering on a retained...

During projects, you take on the expert role for anything related to backend and bring home components that can be reused or developed further.

The backend is primarily built in Python and runs on AWS, incorporating technologies such as: Flask, Pytest, Mypy, Docker, PostgreSQL, SQS, S3, and Terraform Continuous integration and daily deployments.

Join a Fintech Revolution - Newly created role - As the first in this role, you’ll play a key role in defining how backend engineering evolves within a fast-scaling global fintech – with full support from leadership and autonomy to innovate. DATAHEAD has been exclusively retained by a fast-scali

We're on a mission to make money work for everyone. We're waving goodbye to the complicated and confusing ways of traditional banking. After starting as a prepaid card, our product offering has grown a lot in the last 10 years in the UK. As well as personal and business bank accounts, we offer...

We’re on a mission to make money work for everyone. We’re waving goodbye to the complicated and confusing ways of traditional banking. With our hot coral cards and get-paid-early feature, combined with financial education on social media and our award-winning customer service, we have a long h...

Aforza aims to transform the lives of every consumer on the planet by helping the world’s best Consumer Goods companies become more agile, efficient, productive, and sustainable. We do this by introducing never-before-seen capabilities, including 'Active' Customer Segmentation, Real-Time Promoti...

As a backend engineer you will join the Backend Foundation team in the Developer Enablement value stream within the R&D department. We are looking for an experienced backend engineer to strengthen our team. You have at least 3 years of experience as a Java Backend Developer;.

Collaborate in a design session – you'll have a live technical interview with our Backend Tech Lead and a Senior Backend Engineer. We're now looking for a talented Senior Backend Engineer to join the team!. Get to know your would-be team – you’ll have a call with a member of our Backend team t

In this role, you’ll be building the backend of our Aforza Studio product, an advanced Digital Asset Management and photo automation solution. We use TypeScript across the board in both frontend and backend. Languages: TypeScript, SQL Frontend: React, Redux Backend: Nest.

We're looking for a growth minded Staff backend engineer with strong product experience. You solve problems end-to-end, from client applications to backend infrastructure.

We're on a mission to make money work for everyone.We're waving goodbye to the complicated and confusing ways of traditional banking.After starting as a prepaid card, our product offering has grown a lot in the last 10 years in the UK.As well as personal and business bank accounts, we offer joint...

Job Description: Senior Full Stack Engineer – AI Startup – Up to 130k ?? ?️ Location : London, flexible working arrangements, ideally 1/2 days in office ? Tech Stack : Python, Flask, FastAPI, React, TypeScript, GCP (Backend Leaning) Our y-combinator backend client are building an elite eng

What will you do as a Lead Engineer? You will be responsible for leading the backend engineering strategy across the core API infrastructure. Driving best practices and standards Building a robust, high performance architecture powering millions of transactions Organically migrating over from a L...

As we grow, we’re looking for a Principal Backend Engineer to lead the evolution of our backend systems. Role Overview As th e Principal Backend Engineer , you will lead the development and optimization of Luupli’s backend services. Lead and mentor a team of backend engineers, fostering a cult

What We Can Offer: Hybrid Working Arrangement: Our office in Cardiff is located right in City Centre, just a couple minutes away from the Cardiff Central Train Station! As a member of our team, you’ll have the flexibility to work at home and collaborate with your fellow engineers in person.

Social network you want to login/join with: TalentCo are thrilled to be working with a VC-backed AI infrastructure startup building the future of multimodal data systems. Having recently raised a substantial Seed round, they are now looking to hire an exceptional backend focused Senior Rust Engin...

At Terminal Velocity, part of the Rocket Science Group, our platform and server teams are dedicated to constructing the infrastructure necessary for your game's global rollout through a strong focus on back-end and publishing stacks. Rocket Science is an equal opportunity employer and is committe...

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 ...

CSS-in-JS, REST APIs As a Mid Level Front End Engineer, you’ll work closely with product managers, designers, and backend engineers to build fast, intuitive, and accessible user interfaces that make car maintenance effortless. Solid understanding of frontend architecture, performance, and best pr...

Senior Full Stack Engineer | VC Funded Gifting/Rewards | Remote. Senior Full Stack Engineer | VC Funded Gifting/Rewards | Remote. We are looking for a backend leaning Senior Full Stack Engineer, proficient in Typescript, Node, React with cloud experience to join a growing team of customer-centric...

Senior Backend Engineer Contractor (Java / Ruby focused) | Fully Remote / EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length.We're supporting a fast-moving client at huge global scale, that is in need of a.This is a high-impact freelance role within a tech-driven established tea...

Social network you want to login/join with: Wedo is partnering with a blockchain business building the next generation of digital asset protection. They're hiring a Senior React Contractor to lead the front-end build of their new B2B user portal a product that helps institutions manage wallet r...

Social network you want to login/join with: col-narrow-left Trireme cardiff, United Kingdom Other - Yes col-narrow-right 3 04.06.2025 19.07.2025 col-wide About the Role: We are seeking a highly experienced and versatile Senior Software Engineer with deep expertise across quantitativ...

Social network you want to login/join with: Up to £125,000 plus stock London – Hybrid (2 days a week in the office) Typescript, Node, React, GraphQL & GCP Staff Product Engineer – We are working with an amazing Carbon Neutral, B-Corp certified start-up to find them a Staff Product Engineer t...

Social network you want to login/join with: col-narrow-left cardiff, United Kingdom Other - Yes col-narrow-right 1 06.06.2025 21.07.2025 col-wide Synechron is looking for a Senior DevOps Engineer to join their Cloud and AI Practice to work on a multi-year, AI programme of work within ...

Social network you want to login/join with: col-narrow-left Salt cardiff, United Kingdom Other - Yes col-narrow-right 2 07.06.2025 22.07.2025 col-wide Technical lead Test Engineer (Mobile, API) – Insurance - Hybrid – London 3 days a week Duration: 6 months Start: ASAP My new clien...

Social network you want to login/join with: Java Full Stack Engineer + Artificial Intelligence Are you self-motivated with an innovative mind, a passion for technology, and a good understanding of object orientated development? Apexon is a digital-first technology services firm specializing i...

Social network you want to login/join with: col-narrow-left Few&Far Cardiff, United Kingdom Other - Yes col-narrow-right 6 31.05.2025 15.07.2025 col-wide Fully Remote within the UK Up to £150k + Stock + Benefits Join a US scale-up on a mission to empower Engineering teams to delive...

At Engine by Starling, we are on a mission to find and work with leading banks all around the world who have the ambition to build rapid growth businesses, on our technology. Engine is Starling's software-as-a-service (SaaS) business, the technology that was built to power Starling Bank, and a ...

Social network you want to login/join with: col-narrow-left Pinepeak cardiff, United Kingdom Other - Yes col-narrow-right 3 10.06.2025 25.07.2025 col-wide Are you passionate about climate solutions and ready to join the development of next-generation wildfire prediction technology in...

Social network you want to login/join with: Cardiff, United Kingdom Other - Yes 2 06.06.2025 21.07.2025 ???x6 Tech leads/Staff Engineers??? ?Fully Remote? Areti Group is seeking x6 Tech leads/Staff Engineers to work for a rapidly growing TECH FOR GOOD business. My client is building a ...

Social network you want to login/join with: Founding Full Stack Engineer – Consumer AI (Stealth Mode) London – 2-3 days a week in the office Up to £120,000 plus generous stock options Are you a Full Stack Engineer ready to build something radically new in AI and consumer tech? Founding Full...

Social network you want to login/join with: A funded, early-stage gaming startup is on a mission to build the next generation of immersive, large-scale multiplayer online experiences. The focus is on persistent virtual worlds with deep systems, innovative mechanics, and real-time interactivity—...

Social network you want to login/join with: ?? Senior Frontend Developer - with Full Stack Experience | £70K | Fully Remote (UK-based) Are you a Senior Frontend developer / React Developer who thrives on crafting elegant, user-centric applications, and also enjoys getting stuck into backend lo...

As Senior Android Engineer you will take a key role in the development and enhancement of MYPINPAD’s mobile solutions. You’ll be part of a collaborative team working closely with Android developers, service engineers, and UX designers to deliver high-quality, secure mobile apps and SDK integrat...

Join to apply for the Senior Full Stack Engineer role at Admiral Pioneer. We’re looking for a Senior Full Stack Engineer to join our team at Veygo! At Veygo, our world is learner and temporary pay-as-you-go car insurance. We provide flexible coverage by the hour, day, or week, catering to chan...

Aforza aims to transform the lives of every consumer on the planet by helping the world’s best Consumer Goods companies become more agile, efficient, productive, and sustainable. We do this by introducing never-before-seen capabilities, including 'Active' Customer Segmentation, Real-Time Promoti...

Social network you want to login/join with: We're working with a fast-growing tech company that’s building scalable, user-centric mobile experiences. They’re now looking to hire a Senior Mobile Engineer to take ownership of their mobile app and play a key role in shaping the future of their mob...

Social network you want to login/join with: Market based salary + bonus & excellent benefits package IT Search is proud to partner with a global FinTech leader expanding its UK engineering presence. We're looking for a Senior C++ Software Engineer to join a growing team focused on building an...

Social network you want to login/join with: ? Senior Fullstack Engineer | Fintech | TypeScript | React | Node.js | Hybrid (3 Days/Wk in London) | £100,000 - £120,000 + Equity Join a high-growth, mission-driven fintech backed by Y Combinator, General Catalyst, and Creandum—on a mission to make ...