london (city of london), south east england, united kingdom Hybrid / WFH Options
Capsa AI
At a Glance Capsa is an AI platform that accelerates due diligence and deepens insights for Private Equity funds. We are hiring senior software engineers who are comfortable contributing across all layers of the application and developing features end to end. Details: Role : Senior SoftwareEngineer - Full Stack Location : London, UK (Hybrid, In-Person 4 days a … companies like QinetiQ and retail tech startups such as Standard AI. The entire team consists of early-stage startup veterans passionate about building exceptional products. The Role A senior softwareengineer at Capsa is expected to own projects and features from conception to production, working across the stack to deliver improvements to our AI platform. Key responsibilities include … vision and will have a direct impact on its success. Have the opportunity for fast career growth. Enjoy yourself! Apply if: You have 4+ years of experience as a softwareengineer in a venture backed startup or top tech firm. You have taken entire products or features from ideation to production and you've measured their impact. You More ❯
SoftwareEngineer Hybrid - London - 3 days a week £55,000 - £60,000 + Bonus & Benefits Our client is a FTSE100 market leading organisation who are looking for a SoftwareEngineer to join their growing digital solutions team. You’ll be involved in ensuring solutions are scalable, secure and widely adopted across the business. You'll need … to demonstrate previous experience in using cloud services and modern software development. You’ll also be responsible for promoting best practices across the wider company and supporting teams in adopting them. We’re looking for candidates who possess the following: Experience with Azure Ecosystem Working on creating Proof of Concepts and prototypes Interest in emerging areas such as AI More ❯
london (city of london), south east england, united kingdom
TRIA
SoftwareEngineer Hybrid - London - 3 days a week £55,000 - £60,000 + Bonus & Benefits Our client is a FTSE100 market leading organisation who are looking for a SoftwareEngineer to join their growing digital solutions team. You’ll be involved in ensuring solutions are scalable, secure and widely adopted across the business. You'll need … to demonstrate previous experience in using cloud services and modern software development. You’ll also be responsible for promoting best practices across the wider company and supporting teams in adopting them. We’re looking for candidates who possess the following: Experience with Azure Ecosystem Working on creating Proof of Concepts and prototypes Interest in emerging areas such as AI More ❯
Experis SoftwareEngineer Perm Salary DOE London, Bristol (Hybrid) **DV or SC Clearance Essential** Our client, a rapidly growing deep-tech consultancy, urgently require an experienced SoftwareEngineer to join their team on a permanent basis. In order to be successful, you will have the following experience: Experienced Software Developer/Engineer Strong background More ❯
Job Title: Senior SoftwareEngineer Reporting to: Lead Engineer Role Purpose: As a Senior SoftwareEngineer, you will enhance and support both new and existing products within the Software Engineering group. In addition to contributing to feature development, you will play a role in shaping the technology and process strategies, and occasionally lead innovation … or software design initiatives. Key Responsibilities: Develop new features with a strong focus on high-quality code. Conduct peer code reviews to ensure quality and adherence to best practices. Participate in daily stand-ups, change analysis sessions, and technical presentations. Provide guidance on tool and environment adoption where necessary. Continuously develop knowledge of the business domain and gain a … proficiency in C# at a commercial level. Solid experience with .NET Core and related open-source technologies. Knowledge of Object Orientation, SOA, and relevant design patterns. Experience with modern software development practices, including agile methodologies , version control, code reviews, and continuous integration. Understanding of concurrency, asynchrony, and parallelism. Experience with Test Driven Development (TDD), unit testing frameworks, mocking frameworks More ❯
City of London, London, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
Software Developer/Engineer (C++ Mac Extensions EDR) WFH/London to £80k Do you have experience developing and integrating Mac software? You could be progressing your career at a rapidly expanding scale-up software house that is developing a highly complex network cyber security platform; the platform monitors network protocols in real-time, parses the … data structures to extract key metadata which is then analysed by in-house algorithms and allows customers to detect hackers, malware, data leakage and other malicious activity. As a Software Developer you will focus on enabling the core product, written in C/C++ for Windows and Linux to run on Apple Mac software, using the latest Extensions … of the time, meeting up with colleagues in the London office once or twice a month. About you: You have strong C++ development skills You have experience of integrating software with Apple Mac Extensions and APIs You have a good knowledge of Network Security and EDR/EDTR You have VPN client or security experience You're collaborative with More ❯
City of London, London, United Kingdom Hybrid / WFH Options
THRivve by intelletec
Senior SoftwareEngineer | Hybrid | London We are hiring for an innovative analytics software company powering global credit investment is expanding its engineering team and looking for a Senior SoftwareEngineer to help shape its next generation of data products. This is a unique opportunity to influence the technical roadmap at a high-growth fintech scale More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
THRivve by intelletec
Senior SoftwareEngineer | Hybrid | London We are hiring for an innovative analytics software company powering global credit investment is expanding its engineering team and looking for a Senior SoftwareEngineer to help shape its next generation of data products. This is a unique opportunity to influence the technical roadmap at a high-growth fintech scale More ❯
Senior SoftwareEngineer Location: London 1x a month Salary: £75,000 - £95,000 + equity + benefits An established, global technology business within the hospitality-tech industry is seeking a talented Backend SoftwareEngineer to help build and scale cutting-edge digital solutions. This is a chance to work on greenfield projects - building new, scalable products … ground up. What will I be doing? Design, develop, test, and maintain high-performance Back End systems supporting Real Time hospitality operations. Take ownership of key features throughout the software development life cycle - from technical design through to deployment and ongoing optimisation. Collaborate with cross-functional teams including product, design, and data science to deliver innovative, customer-focused solutions. … mentoring, and knowledge sharing to maintain engineering excellence. What do I need to be successful: Degree in Computer Science or equivalent industry experience. 3+ years' experience in Back End software development within a fast-paced, agile environment. Strong proficiency in Python (or similar modern Back End language) and experience building RESTful APIs or microservices. Solid understanding of data structures More ❯
Lead SoftwareEngineer (Java) – London/Hybrid Are you a Lead Backend Engineer with a strong background in Java and modern backend architecture? In this senior technical leadership role, you will set the technical vision, influence system design, and guide teams in delivering secure, scalable, and high-performing services. While remaining hands-on for key projects, you … and mentor engineers to strengthen the backend discipline across teams. Lead design sessions, code reviews, and collaborative technical discussions. Skills & Experience Proven experience as a senior or lead backend engineer with Java (11+) and Spring Boot. Expertise in designing and leading backend architectures for complex systems. Strong understanding of AWS, Kubernetes, and modern microservice-based systems. Experience with Kafka … protection Tech loan and dedicated training budget If you want to join a company that offers a dynamic, supportive environment where innovation and growth are encouraged. Apply now. Lead SoftwareEngineer (Java) – London/Hybrid More ❯
london (city of london), south east england, united kingdom
Candour Solutions
Lead SoftwareEngineer (Java) – London/Hybrid Are you a Lead Backend Engineer with a strong background in Java and modern backend architecture? In this senior technical leadership role, you will set the technical vision, influence system design, and guide teams in delivering secure, scalable, and high-performing services. While remaining hands-on for key projects, you … and mentor engineers to strengthen the backend discipline across teams. Lead design sessions, code reviews, and collaborative technical discussions. Skills & Experience Proven experience as a senior or lead backend engineer with Java (11+) and Spring Boot. Expertise in designing and leading backend architectures for complex systems. Strong understanding of AWS, Kubernetes, and modern microservice-based systems. Experience with Kafka … protection Tech loan and dedicated training budget If you want to join a company that offers a dynamic, supportive environment where innovation and growth are encouraged. Apply now. Lead SoftwareEngineer (Java) – London/Hybrid More ❯
Principal SoftwareEngineer Location: London - 1x a month Salary: £95,000 - £120,000 + equity + benefits An established, global technology business within the hospitality-tech industry is seeking an accomplished Principal SoftwareEngineer to lead the design and delivery of next-generation digital solutions. This is an opportunity to shape greenfield projects from the ground … reliability, and performance. Partner closely with engineering leadership to define best practices, coding standards, and long-term technical strategy. Design, develop, and oversee the delivery of robust, production-grade software built using Python, Django, Cloud Firestore, BigQuery, and Elasticsearch. Mentor and guide engineers at all levels, fostering a culture of technical excellence and continuous improvement. Collaborate with cross-functional … with business priorities to deliver scalable, maintainable solutions. What do I need to be successful? Degree in Computer Science or equivalent hands-on experience. 7+ years' experience in backend software development, including several years in a senior or principal-level engineering role. Expertise in Python (or a similar backend language), with proven experience designing distributed systems, APIs, and microservices More ❯
Senior C++ SoftwareEngineer London Join a pioneering team developing advanced software for secure, high-performance communications. This is an opportunity to contribute to technology that supports public safety, defence, and government operations, working within an organisation that combines the innovation of a start-up with the stability of a globally established leader. You’ll play a … QA, and Architecture. If you’re passionate about engineering excellence, security, and reliability, this is a genuinely impactful role. In this role, you’ll design, build, and maintain C++ software for mission-critical communication systems while integrating with third-party platforms such as Motorola DCS and CADI. You’ll collaborate closely with cross-functional teams to deliver scalable and … secure solutions that perform under pressure. Your work will also involve participating in architecture discussions, contributing to code reviews, implementing best practices, and ensuring the software meets performance, reliability, and security standards. You’ll have the freedom to innovate and the responsibility to deliver technology that has real-world impact. What's required for this Senior C++ SoftwareMore ❯
london (city of london), south east england, united kingdom
IC Resources
Senior C++ SoftwareEngineer London Join a pioneering team developing advanced software for secure, high-performance communications. This is an opportunity to contribute to technology that supports public safety, defence, and government operations, working within an organisation that combines the innovation of a start-up with the stability of a globally established leader. You’ll play a … QA, and Architecture. If you’re passionate about engineering excellence, security, and reliability, this is a genuinely impactful role. In this role, you’ll design, build, and maintain C++ software for mission-critical communication systems while integrating with third-party platforms such as Motorola DCS and CADI. You’ll collaborate closely with cross-functional teams to deliver scalable and … secure solutions that perform under pressure. Your work will also involve participating in architecture discussions, contributing to code reviews, implementing best practices, and ensuring the software meets performance, reliability, and security standards. You’ll have the freedom to innovate and the responsibility to deliver technology that has real-world impact. What's required for this Senior C++ SoftwareMore ❯
Founding SoftwareEngineer 📍 Hybrid — London/Athens 🕒 Full-time | Mid/Senior Level 🚀 Founding Team About Us Inferity is transforming how teams search, analyze, and understand frontline video. From hours of unstructured body cam or incident footage to complex multi-source workflows, our AI-driven platform turns video into structured, decision-ready insights. We’re building AI agents … that reason across video, audio, language, and metadata, powering real-world workflows where accuracy, speed, context, and clarity are essential. The Role We’re looking for a Founding SoftwareEngineer to lead backend and infrastructure development for our category-defining video understanding product. From data ingestion pipelines to scalable APIs, you’ll blend backend engineering and DevOps to More ❯
london (city of london), south east england, united kingdom
Inferity AI
Founding SoftwareEngineer 📍 Hybrid — London/Athens 🕒 Full-time | Mid/Senior Level 🚀 Founding Team About Us Inferity is transforming how teams search, analyze, and understand frontline video. From hours of unstructured body cam or incident footage to complex multi-source workflows, our AI-driven platform turns video into structured, decision-ready insights. We’re building AI agents … that reason across video, audio, language, and metadata, powering real-world workflows where accuracy, speed, context, and clarity are essential. The Role We’re looking for a Founding SoftwareEngineer to lead backend and infrastructure development for our category-defining video understanding product. From data ingestion pipelines to scalable APIs, you’ll blend backend engineering and DevOps to More ❯
Python SoftwareEngineer – High-Frequency Trading We're working with a high-frequency trading (HFT) firm that is looking to expand its technology team with a Python Software Engineer. This is an opportunity to join a trading firm operating at the cutting edge of global markets, where technology and speed are paramount. They build and run highly … that compete across major global exchanges. You’ll work on some of the most complex and rewarding engineering challenges in the financial technology space. The Role As a Python SoftwareEngineer, you’ll collaborate with traders, quantitative researchers, and other developers to design, develop, and optimise trading infrastructure. You’ll be directly contributing to systems that operate at … time systems, or algorithmic trading. Why Apply? Opportunity to work on high-impact systems used in live trading. Collaborate with some of the brightest minds in quantitative finance and software engineering. Competitive compensation package with a base salary, plus bonus. We are reviewing applications on a rolling basis. If this role sounds like a fit, apply now to learn More ❯
london (city of london), south east england, united kingdom
Durlston Partners
Python SoftwareEngineer – High-Frequency Trading We're working with a high-frequency trading (HFT) firm that is looking to expand its technology team with a Python Software Engineer. This is an opportunity to join a trading firm operating at the cutting edge of global markets, where technology and speed are paramount. They build and run highly … that compete across major global exchanges. You’ll work on some of the most complex and rewarding engineering challenges in the financial technology space. The Role As a Python SoftwareEngineer, you’ll collaborate with traders, quantitative researchers, and other developers to design, develop, and optimise trading infrastructure. You’ll be directly contributing to systems that operate at … time systems, or algorithmic trading. Why Apply? Opportunity to work on high-impact systems used in live trading. Collaborate with some of the brightest minds in quantitative finance and software engineering. Competitive compensation package with a base salary, plus bonus. We are reviewing applications on a rolling basis. If this role sounds like a fit, apply now to learn More ❯
Principal SoftwareEngineer (Golang | Distributed Systems) London – On-site Up to £170,000 base + 25% bonus + excellent benefits Permanent I’m partnered with a high-growth technology company building a world-class data and services platform that processes tens of billions of monthly requests — powering real-time insights for millions of users globally. They’re hiring … a Principal SoftwareEngineer (Golang) to join their London engineering team as a hands-on technical leader — driving architectural direction, mentoring engineers, and solving complex distributed systems challenges at scale. The Opportunity Architect and scale high-throughput, event-driven systems built in Go Lead the evolution of real-time APIs and data platforms handling billions of requests Stay More ❯
london (city of london), south east england, united kingdom
Orbis Group
Principal SoftwareEngineer (Golang | Distributed Systems) London – On-site Up to £170,000 base + 25% bonus + excellent benefits Permanent I’m partnered with a high-growth technology company building a world-class data and services platform that processes tens of billions of monthly requests — powering real-time insights for millions of users globally. They’re hiring … a Principal SoftwareEngineer (Golang) to join their London engineering team as a hands-on technical leader — driving architectural direction, mentoring engineers, and solving complex distributed systems challenges at scale. The Opportunity Architect and scale high-throughput, event-driven systems built in Go Lead the evolution of real-time APIs and data platforms handling billions of requests Stay More ❯
Founding SoftwareEngineer - AI Startup - Up to £150k 📍 London, Hybrid, 3 days in office 💰 £100–150k + generous equity 💻 Python, TypeScript, React + AI/ML toolings I'm working with a high-calibre, VC-backed startup that's building the infrastructure layer for intelligent human-AI collaboration, especially within regulated and high-complexity industries. They’ve assembled … a world-class founding team and are now looking for an exceptional Founding Engineer to help build their core platform. ✅ Ideal profile: 5+ years engineering experience (startup background preferred) Strong backend & full-stack skills (Python, Django, TypeScript, React) Hands on builder with high autonomy and bias to action Bonus: experience with LLMs, cloud infra, CI/CD, or academic … Why this role: Huge ownership in a truly technical founding environment Exceptional team, high trust, fast execution Real-world impact building the operating system for next-gen work Founding SoftwareEngineer - AI Startup - Up to £150k More ❯
Flight SoftwareEngineer London Permanent Position - Hybrid (3 days on site per week) There aren't many positions that come up like this, it's an opportunity to join a company who are almost certain to make a huge impact on their market. They are an autonomous systems start up based in London, developing technology to ensure technology … in this space does what it's supposed to do. They are looking for a flight softwareengineer to join the team for Ai and robotics applications. Experience sought is below: Developing software for robotics, UAV or autonomous systems. Preferably in safety-critical or mission critical environments. algorithm experience for navigation, control, planning, decision making etc. Robotics More ❯
C++ SoftwareEngineer London | Hybrid (2-3 days per week) | Competitive salary + bonus Ncounter is partnering with a leading trading technology group to hire an exceptional C++ SoftwareEngineer to build and evolve high-performance order gateway systems used in fast-moving fixed income markets. This is a hands-on role developing ultra-low-latency … team of developers, quants and platform engineers, working across a high-availability C++ codebase to deliver fast, resilient and observable services. Youll be empowered to design, implement and test software that directly impacts trading performance, scalability and reliability. Key Responsibilities: Design and develop high-throughput order gateway components in modern C++ Implement robust connectivity, order validation and routing logic … This is an opportunity to work at the heart of a global trading platform, building technology that traders and researchers rely on every day. If youre a passionate C++ engineer who thrives on writing elegant, high-performance code, wed love to hear from you. Apply now through Ncounter for a confidential discussion and to learn more about this role. More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Tenth Revolution Group
About the Job Senior SoftwareEngineer- Hybrid (2 days on site)- London- £100K+ Incredible Benefits Are you passionate about working with cutting-edge technology and looking to grow your skills in a forward-thinking environment? We’re currently looking for Senior Software Engineers who enjoy being hands-on and thrive on solving complex technical challenges. If you … personal insurance space. The venture combines the agility and innovation of a start-up with the stability and backing of a major UK financial services provider. As a Senior SoftwareEngineer , you’ll collaborate closely with Product Owners, subject matter experts, and other team members to deliver high-quality outcomes through continuous development and release cycles. You’ll More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Tenth Revolution Group
About the Job Senior SoftwareEngineer- Hybrid (2 days on site)- London- £100K+ Incredible Benefits Are you passionate about working with cutting-edge technology and looking to grow your skills in a forward-thinking environment? We’re currently looking for Senior Software Engineers who enjoy being hands-on and thrive on solving complex technical challenges. If you … personal insurance space. The venture combines the agility and innovation of a start-up with the stability and backing of a major UK financial services provider. As a Senior SoftwareEngineer , you’ll collaborate closely with Product Owners, subject matter experts, and other team members to deliver high-quality outcomes through continuous development and release cycles. You’ll More ❯