City of London, London, United Kingdom Hybrid / WFH Options
Oliver Bernard
Java/Kotlin Engineer A fast-growing Fintech company based in London, are on the lookout for talented Kotlin Engineers to join their high-impact engineering team. You don’t need to be a Kotlin expert yet — if you’ve worked in any JVM language (Java, Scala, Clojure, etc.) and are keen to learn Kotlin, we’d love to hear … maintainable code with a focus on reliability and scalability. Contribute to architectural discussions and help shape our platform as we scale. What we’re looking for Strong experience with Java, Scala, Kotlin, or another JVM language. Solid understanding of modern software engineering principles — from CI/CD to cloud-native development (AWS, GCP, or Azure). Experience with frameworks like More ❯
Shefford, Bedfordshire, South East, United Kingdom
Stackstudio Digital Ltd
Integration Guide development teams throughout the build and implementation phases. Design and implement robust solutions, coordinating User Acceptance Testing (UAT) with business stakeholders. Develop responsive web applications using GSS, Java, and open-source technologies. Integrate GE Smallworld with external systems via REST APIs using GSS. Data Management Design and manage data update services for external integrations. Oversee data migration activities More ❯
and attention to detail. Knowledge of industry regulations and safety standards. Minimum 3+ years in a similar Controls System Engineer role Motion Control, Servo Drives, Application programming (C++, Python, Java, etc), PLC logic programming (Beckhoff, Siemens, Rockwell, HMI programming HTML, Javascript desirable but not essential Job Offer Competitive salary ranging from 40,000 to 55,000. Standard pension scheme. More ❯
Manchester, Lancashire, United Kingdom Hybrid / WFH Options
4Square Recruitment Ltd
Nessus, Qualys, Metasploit, Kali Linux . Understanding of OWASP and modern testing methodologies. Confident communicator - able to work directly with clients. Bonus Points For: Code review capability in Python, Java, or JavaScript . CHECK accreditation (CTM or CTL). Active or eligible for SC clearance (five years of UK residency required). Why Join Salary: £40,000 - £60,000 (DOE More ❯
Manchester Area, United Kingdom Hybrid / WFH Options
4Square Recruitment Ltd
Nessus, Qualys, Metasploit, Kali Linux . Understanding of OWASP and modern testing methodologies. Confident communicator — able to work directly with clients. Bonus Points For: Code review capability in Python, Java, or JavaScript . CHECK accreditation (CTM or CTL). Active or eligible for SC clearance (five years of UK residency required). Why Join Salary: £40,000 – £60,000 (DOE More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Huxley
with Finance data/reporting in a corporate or investment banking context Excellent stakeholder management and communication skills Confident using JIRA and leading distributed teams Exposure to C# and JAVA would be a nice to have Contract Details Daily Rate : Up to £1150 (Inside IR35) Location : London (Hybrid working) Start : ASAP Duration : Initial 6 months (likely extension) Please apply with More ❯
warrington, cheshire, north west england, united kingdom Hybrid / WFH Options
4Square Recruitment Ltd
Nessus, Qualys, Metasploit, Kali Linux . Understanding of OWASP and modern testing methodologies. Confident communicator — able to work directly with clients. Bonus Points For: Code review capability in Python, Java, or JavaScript . CHECK accreditation (CTM or CTL). Active or eligible for SC clearance (five years of UK residency required). Why Join Salary: £40,000 – £60,000 (DOE More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Huxley Associates
with Finance data/reporting in a corporate or investment banking context Excellent stakeholder management and communication skills Confident using JIRA and leading distributed teams Exposure to C# and JAVA would be a nice to have Contract Details Daily Rate : Up to £1150 (Inside IR35) Location : London (Hybrid working) Start : ASAP Duration : Initial 6 months (likely extension) Please apply with More ❯
St. Albans, Hertfordshire, England, United Kingdom
Penguin Recruitment Ltd
as a Full Stack Developer Excellent working knowledge of full Software System Lifecycle Highly-proficient in Software System Design, Development, Testing, and Deployment Strategies for High Availability Experience with Java Middleware Outstanding knowledge of Performance and Security in Enterprise Systems Experience of working with networks: LAN & WAN/Internet and Security Prior experience of Database Access Design and Application Optimisation More ❯
bolton, greater manchester, north west england, united kingdom Hybrid / WFH Options
4Square Recruitment Ltd
Nessus, Qualys, Metasploit, Kali Linux . Understanding of OWASP and modern testing methodologies. Confident communicator — able to work directly with clients. Bonus Points For: Code review capability in Python, Java, or JavaScript . CHECK accreditation (CTM or CTL). Active or eligible for SC clearance (five years of UK residency required). Why Join Salary: £40,000 – £60,000 (DOE More ❯
and roadmap. You will likely have: Experience leading and scaling engineering teams within a front-office trading or high-performance technology environment. Strong hands-on background in modern C++, Java, or Python, with deep understanding of systems architecture and distributed design. Proven ability to bridge business and engineering, collaborating effectively with PMs, data scientists, and operations teams. A passion for More ❯
and roadmap. You will likely have: Experience leading and scaling engineering teams within a front-office trading or high-performance technology environment. Strong hands-on background in modern C++, Java, or Python, with deep understanding of systems architecture and distributed design. Proven ability to bridge business and engineering, collaborating effectively with PMs, data scientists, and operations teams. A passion for More ❯
and roadmap. You will likely have: Experience leading and scaling engineering teams within a front-office trading or high-performance technology environment. Strong hands-on background in modern C++, Java, or Python, with deep understanding of systems architecture and distributed design. Proven ability to bridge business and engineering, collaborating effectively with PMs, data scientists, and operations teams. A passion for More ❯
and roadmap. You will likely have: Experience leading and scaling engineering teams within a front-office trading or high-performance technology environment. Strong hands-on background in modern C++, Java, or Python, with deep understanding of systems architecture and distributed design. Proven ability to bridge business and engineering, collaborating effectively with PMs, data scientists, and operations teams. A passion for More ❯
equivalent) Experience developing system software for Android OS Experience designing and implementing image processing algorithms Experience working with ARM 64-bit architecture Familiarity with CPU/NPU hardware architectures Java and/or Python development experience More ❯
equivalent) Experience developing system software for Android OS Experience designing and implementing image processing algorithms Experience working with ARM 64-bit architecture Familiarity with CPU/NPU hardware architectures Java and/or Python development experience More ❯
on experience building distributed or performance-sensitive systems, ideally with microsecond-level latency or high-throughput requirements Proven coding ability in Kotlin, or another object-oriented language such as Java (preferred), C++ or C# Familiarity with Linux APIs and comfort developing in a Linux-based environment Strong computer science fundamentals with several years’ experience in professional software development Experience applying More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Techfellow Limited
on experience building distributed or performance-sensitive systems, ideally with microsecond-level latency or high-throughput requirements Proven coding ability in Kotlin, or another object-oriented language such as Java (preferred), C++ or C# Familiarity with Linux APIs and comfort developing in a Linux-based environment Strong computer science fundamentals with several years’ experience in professional software development Experience applying More ❯
and roadmap. You will likely have: Experience leading and scaling engineering teams within a front-office trading or high-performance technology environment. Strong hands-on background in modern C++, Java, or Python, with deep understanding of systems architecture and distributed design. Proven ability to bridge business and engineering, collaborating effectively with PMs, data scientists, and operations teams. A passion for More ❯
london (city of london), south east england, united kingdom
Mondrian Alpha
and roadmap. You will likely have: Experience leading and scaling engineering teams within a front-office trading or high-performance technology environment. Strong hands-on background in modern C++, Java, or Python, with deep understanding of systems architecture and distributed design. Proven ability to bridge business and engineering, collaborating effectively with PMs, data scientists, and operations teams. A passion for More ❯
North London, London, England, United Kingdom Hybrid / WFH Options
Penguin Recruitment Ltd
Design, Development, Testing, and Deployment Strategies for High Availability, Networks: LAN & WAN/Internet, Security* Database and Database Access Design* HCI in Software Systems* Machine-to-Machine Automation Technologies* Java based Enterprise Middleware Platform* Containerisation: Docker* MQTT, RESTful URL Data Integration* Deep Learning Neural Network Platforms* Enterprise Linux Platforms If you fit the criteria for this environmental software developer position More ❯
london, south east england, united kingdom Hybrid / WFH Options
Techfellow Limited
on experience building distributed or performance-sensitive systems, ideally with microsecond-level latency or high-throughput requirements Proven coding ability in Kotlin, or another object-oriented language such as Java (preferred), C++ or C# Familiarity with Linux APIs and comfort developing in a Linux-based environment Strong computer science fundamentals with several years’ experience in professional software development Experience applying More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Techfellow Limited
on experience building distributed or performance-sensitive systems, ideally with microsecond-level latency or high-throughput requirements Proven coding ability in Kotlin, or another object-oriented language such as Java (preferred), C++ or C# Familiarity with Linux APIs and comfort developing in a Linux-based environment Strong computer science fundamentals with several years’ experience in professional software development Experience applying More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Techfellow Limited
on experience building distributed or performance-sensitive systems, ideally with microsecond-level latency or high-throughput requirements Proven coding ability in Kotlin, or another object-oriented language such as Java (preferred), C++ or C# Familiarity with Linux APIs and comfort developing in a Linux-based environment Strong computer science fundamentals with several years’ experience in professional software development Experience applying More ❯
Overview Job title: Graduate Digital Intelligence Software Engineer Location: Leeds Salary: £34,000 + £2,000 Welcome Bonus What you'll be doing You will work primarily in Java/Javascript/Angular/React; we also use other languages like C# and .NET. Tasks could include: Assisting in the design, test and implementation of software which forms part of More ❯