Mid-Level Core Java Engineer

Travelfusion

Mid-Level Core Java Engineer at Travelfusion, the world's largest travel B2B content aggregator. Contributing to software development lifecycle with efficient code and mentoring.

Posted 6/11/2026full-timeLondon • 🇬🇧 United KingdomMid-LevelSeniorWebsite

Tech Stack

Tools & technologies

JavaSQL

About the role

Key responsibilities & impact

Contribute to all phases of the development lifecycle
Write well designed, efficient code
Ensure designs are in compliance with specifications
Prepare and produce releases of software components
Mentor and train team members

Requirements

What you’ll need

Minimum 3 years experience in Core Java
Knowledge of J2SE programming
Familiarity with algorithms and data structures
Experience with software design principles
Knowledge of concurrency and multi-threading
Good written and verbal communication skills
Computer Science background or degree
Database knowledge & experience (SQL, schema design, JDBC)
Understanding of network / web technologies (HTTP, HTML, XML)

Benefits

Comp & perks

🌐 Worldwide ❌ Jobs You've Hidden ⭐️ Saved Jobs ✅ Applied Jobs ✉️ Email Alerts 👤 Account Travelfusion Website LinkedIn All Job Openings 51 - 200 employees Founded 2000 🔌 API 🤝 B2B ☁️ SaaS API
B2B
SaaS Travelfusion is a travel technology company that operates a global travel content and distribution platform, providing APIs and connected services for airlines, low-cost carriers, rail operators, hotels, OTAs, TMCs and meta-search companies. The company aggregates flight, rail and hotel inventory, offers certified NDC connectivity, and provides payment/settlement solutions and related tools for suppliers and customers. Travelfusion focuses on B2B integrations and SaaS-style API products to enable bookings, payments, and distribution at scale. Mid-Level Core Java Engineer 🔥 0 minutes ago 🏢🏡 London – Hybrid ⏰ Full Time 🟡 Mid-level 🟠 Senior 🔙 Backend Engineer Java SQL Apply Now Find Hiring Managers Customize resume + cover letter Report problem ☆ Save ☑️ Mark as applied ❌ Hide 📋 Description
Contribute to all phases of the development lifecycle
Write well designed, efficient code
Ensure designs are in compliance with specifications
Prepare and produce releases of software components
Mentor and train team members 🎯 Requirements
Minimum 3 years experience in Core Java
Knowledge of J2SE programming
Familiarity with algorithms and data structures
Experience with software design principles
Knowledge of concurrency and multi-threading
Good written and verbal communication skills
Computer Science background or degree
Database knowledge & experience (SQL, schema design, JDBC)
Understanding of network / web technologies (HTTP, HTML, XML) Apply Now 📊 Check your resume score for this job Improve your chances of getting an interview by checking your resume score before you apply. Check Resume Score Similar Jobs Modern Workplace Technical Architect 🔥 4 hours ago Computacenter 10,000+ employees 🤝 B2B ☁️ SaaS 🔒 Cybersecurity Website LinkedIn All Job Openings Technical Architect specializing in designing Microsoft-based Modern Workplace solutions. Collaborates with clients to enhance workplace technology for public and defence sector organisations. 🏢🏡 London – Hybrid ⏰ Full Time 🟡 Mid-level 🟠 Senior 🔙 Backend Engineer 🇬🇧 UK Skilled Worker Visa Sponsor Azure Citrix Jamf VMware Back-end Engineer 🔥 11 hours ago Magentic 11 - 50 🤖 Artificial Intelligence ☁️ SaaS 🤝 B2B Website LinkedIn All Job Openings Back-end Engineer developing scalable AI systems and managing enterprise data workflows at Magentic. Collaborating with teams to build robust solutions in a high-ownership environment. 🏢🏡 London – Hybrid 💵 £115k - £125k / year ⏰ Full Time 🟡 Mid-level 🟠 Senior 🔙 Backend Engineer AWS Azure Cloud ERP ETL Google Cloud Platform GraphQL JavaScript Kafka Oracle Oracle ERP Pulsar Python Terraform TypeScript Senior Java Developer – Exchange/Trading Platform 🕒 Yesterday Crypto.com 1001 - 5000 ₿ Crypto 💳 Fintech 🔐 Security Website LinkedIn All Job Openings Senior Java Developer responsible for full-stack development of Crypto.com derivatives exchange platform. Collaborating with product and DevOps teams to enhance trading solutions. 🏢🏡 London – Hybrid ⏰ Full Time 🟠 Senior 🔙 Backend Engineer Java Mid-Senior Ruby on Rails Engineer, B2B SaaS 🕒 5 days ago Transreport 51 - 200 🚗 Transport 🤝 B2B Website LinkedIn All Job Openings Mid-Senior Ruby on Rails Engineer developing and evolving backend systems for operational workflows in the rail industry. Collaborating cross-functionally to optimize performance and reliability. 🏢🏡 London – Hybrid 💰 Non Equity Assistance on 2021-12 ⏰ Full Time 🟠 Senior 🔙 Backend Engineer 🇬🇧 UK Skilled Worker Visa Sponsor AWS Docker JavaScript Kotlin Postgres React React Native Redis Ruby Ruby on Rails SOAP Swift Vue.js Full Stack Engineer, Python, React 🕒 6 days ago Skin + Me 51 - 200 Website LinkedIn All Job Openings Full Stack Engineer developing customer-facing applications for Skin + Me and Hair + Me. Building responsive interfaces in React/TypeScript and integrating with a Python/Flask backend. 🏢🏡 London – Hybrid ⏰ Full Time 🟡 Mid-level 🟠 Senior 🔙 Backend Engineer Flask MySQL Python React TypeScript View More Backend Engineer Jobs 🌐 Worldwide Built by Lior Neu-ner. I'd love to hear your feedback — Get in touch via DM or support@remoterocketship.com Search Search Jobs by country Search jobs by city Search jobs by job title Search entry-level jobs Search junior-level jobs Search senior-level jobs Search jobs by tech stack Search jobs by contract type Search remote internships Search remote part-time jobs Remote jobs Anywhere in the World Companies Hiring Anywhere in the World Companies Hiring Sales People Anywhere in the World Companies Hiring Software Engineers Anywhere in the World Resources Advice Tips for finding remote jobs Interview questions and answers Resume examples Cover letter examples Post a job Affiliates Privacy policy Terms of service Job board SEO course AI Apply Copilot OpenClaw job finder Jobs by Country Remote jobs anywhere in the world (Worldwide remote jobs) Remote jobs United States Remote jobs Australia Remote jobs Brazil Remote jobs Canada Remote jobs France Remote jobs Ireland Remote jobs Germany Remote jobs Netherlands Remote jobs Spain Remote jobs UK Popular Jobs Remote data analyst jobs Remote customer support jobs Remote executive assistant jobs Remote marketing jobs Remote product designer jobs Remote product manager jobs Remote project manager jobs Remote recruiter jobs Remote sales jobs Remote software engineer jobs Jobs by Type Remote full-time jobs Remote part-time jobs Remote contract jobs Remote internship jobs Remote entry-level jobs Remote jobs with no experience required Remote junior jobs (1-3 years of experience) Digital nomad jobs Remote jobs with no degree required Freelance remote jobs Temporary remote jobs Remote jobs hiring now Stay at home mom jobs

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Hard Skills & Tools

Core JavaJ2SEalgorithmsdata structuressoftware design principlesconcurrencymulti-threadingSQLschema designJDBC

Soft Skills

written communicationverbal communicationmentoringtraining

Certifications

Computer Science degree