Back End Systems - 1,642+ job offers

hackajob is collaborating with Barclays to connect them with exceptional professionals for this role. Join us as a Backend Engineer in the Chief Technology Office at Barclays where you’ll be developing cutting-edge AI platforms using state-of-the-art technologies. As part of our Chief Technology Off

Location: London, UK Industry: Investment Banking Work pattern: Hybrid (2/3 days onsite) We’re looking for an experienced Backend Developer to join a leading investment bank and help drive innovation that empowers people and businesses across Asia, Africa, and the Middle East. This role is part of t

Back End Developer Placement Programme We're working with a leading UK tech talent accelerator and CompTIA Gold Partner on this exciting opportunity. This programme is specifically designed to bridge the UK skills gap by transforming ambitious beginners into industry-ready developers through intensi

Back End Developer Placement Programme We're working with a leading UK tech talent accelerator and CompTIA Gold Partner on this exciting opportunity. This programme is specifically designed to bridge the UK skills gap by transforming ambitious beginners into industry-ready developers through intensi

Salary: £70-100k + stock options Working setup: London based – 3 days onsite p/w Chance to join one of the fastest-growing companies in the world, this is a opportunity to join a company where you can be part of something no one has ever done before. Launched in the US, now in the UK and throughout

About Joveo: Every company says they're "AI-first." We actually are. Joveo's recruitment advertising platform processes millions of hiring decisions through machine learning, real-time bidding, and predictive analytics — helping the world's largest employers find the right people, faster and fairer.

About Joveo: Every company says they're "AI-first." We actually are. Joveo's recruitment advertising platform processes millions of hiring decisions through machine learning, real-time bidding, and predictive analytics — helping the world's largest employers find the right people, faster and fairer.

The Role Build backend services and APIs in Python using Flask Design reliable background jobs and pipelines with Celery and Redis Instrument, monitor, and improve performance and reliability Collaborate on architecture, code reviews, and technical direction Work closely with product and customers C

About Joveo: Every company says they're "AI-first." We actually are. Joveo's recruitment advertising platform processes millions of hiring decisions through machine learning, real-time bidding, and predictive analytics — helping the world's largest employers find the right people, faster and fairer.

IDAM Back-end Java Developer - SC Cleared | £500 - £535 We're working with a global tech powerhouse delivering mission-critical digital transformation for the UK public sector on this exciting opportunity. We are seeking a high-caliber Senior Java Developer with deep IDAM expertise to spearhead a ma

About The Company White Collar Factory, located in London, United Kingdom, is a premier commercial and innovation hub that fosters a dynamic environment for technology-driven organizations. Known for its modern architecture and collaborative spaces, White Collar Factory provides a vibrant ecosystem

IDAM Back-end Java Developer - SC Cleared | £500 - £535 We're working with a global tech powerhouse delivering mission-critical digital transformation for the UK public sector on this exciting opportunity. We are seeking a high-caliber Senior Java Developer with deep IDAM expertise to spearhead a ma

IDAM Back-end Java Developer - SC Cleared | £500 - £535 We're working with a global tech powerhouse delivering mission-critical digital transformation for the UK public sector on this exciting opportunity. We are seeking a high-caliber Senior Java Developer with deep IDAM expertise to spearhead a ma

Founding Backend Engineer / Platform Lead (FinTech) Location: UK (Remote - only within the UK) Stage: Early-stage fintech Salary: up to £75,000 About Mia Wealth Mia Wealth is the UK's next generation family wealth and gifting app for children. It makes it easy for parents, grandparents, family and f

Sensor Tower’s digital intelligence platform provides unparalleled insight into market trends, advertising, competitor’s strategies, and consumer/user audience across mobile, web, and gaming. Sensor Tower’s insights are trusted by more than 2,500 enterprises worldwide across tech, retail/commerce, e

Back End Developer Placement Programme We're working with a leading UK tech talent accelerator and CompTIA Gold Partner on this exciting opportunity. This programme is specifically designed to bridge the UK skills gap by transforming ambitious beginners into industry-ready developers through intensi

Date live: 15/04/2026 Business Area: Chief Technology Office Area of Expertise: Technology Contract: Permanent Reference Code: JR-0000102289 Join us as a Backend Engineer in the Chief Technology Office at Barclays where you’ll be developing cutting-edge AI platforms using state-of-the-art technologi

IDAM Back-end Java Developer - SC Cleared | £500 - £535 We're working with a global tech powerhouse delivering mission-critical digital transformation for the UK public sector on this exciting opportunity. We are seeking a high-caliber Senior Java Developer with deep IDAM expertise to spearhead a ma

Senior Back-End Engineer Our Team: How we enrich everyday life You’ll be joining our dynamic Digital Development team within Bauer Media Audio, where we build the back-end systems that power mobile, web, and voice-connected experiences across international markets. Our team thrives on collaboration,

About Joveo: Every company says they're "AI-first." We actually are. Joveo's recruitment advertising platform processes millions of hiring decisions through machine learning, real-time bidding, and predictive analytics — helping the world's largest employers find the right people, faster and fairer.