Java Software Engineer jobs in Bolton, Greater Manchester

Position Overview About the Client Our client is a global leader in travel technology, powered by a team of curious, collaborative innovators who build products that help millions of people explore the world. While data and engineering excellence form the backbone of their work, the company's deeper purpose is to make travel more accessible — enabling memorable experiences, new friendships, and...

Job Description MBDA is looking for a number of Software Engineers at varying levels to work in the Software Resource and Capability Team on Test Software. Salary: £40,000 - £75000 depending on experience Dynamic (hybrid) working: 3 to 4 Days a week in the office Security Clearance: British Citizen or a Dual UK national with British citizenship. Restrictions and/or limitations relating to...

Key Responsibilities - Design, implement, and maintain software for nuclear systems, ensuring compliance with safety and regulatory standards. - Develop software for reactor control, monitoring systems, data acquisition, simulation, and predictive analytics. - Collaborate with multidisciplinary teams including nuclear engineers, electrical engineers, and safety specialists. - Apply best...

Join OCI's Edge Security team as a Principal Engineer to architect and deliver cloud-scale DDoS protection. You'll lead design for high-performance detection and mitigation systems, drive automation and operational excellence, and set the technical direction for customer-facing DDoS capabilities across OCI's global edge. This role requires deep expertise in Linux networking data path and...

You will be someone who pushes commercial value and helps improve team values. You relish the opportunity to work with like minded people, helping influence and reinforce value through data-driven decision making.

You will champion new technologies when it's right for the business.

Principal Software Engineer Fully Remote | Permanent | Competitive Salary + Benefits Harrington Starr has partnered with a leading Global Payments Technology company who are seeking to hire a Principal Software Engineer to join their senior engineering leadership team. This is a rare opportunity to combine hands-on development with strategic influence, guiding architecture decisions and shaping...

You will design and deploy robust frontend client, backend services, infrastructure automation, and cloud-native solutions by utilising your software development knowledge and your DevOps proficiency across AWS and GCP.

You will be central to supporting and evolving two key pathology software systems—one in C#, the other in PHP—while also contributing to the planned consolidation into a modernised .

You will play a leading role in shaping scalable, secure cloud-based architecture while ensuring continuity of the existing systems.

Senior/Lead Software Engineer – Fully Remote (UK) A global B2B SaaS technology business is building out its European engineering hub and is hiring multiple Senior / Lead Software Engineers (JavaScript) to develop and enhance a mission-critical platform used internationally. These are hands-on individual contributor role with strong ownership — ideal for engineers who enjoy building high-quality...

Principal Software Developer – Manchester (central) 3 days a week in office with flexible start/finish – strong benefits – up to £90,000 (flexible for the right person) I'm working with a high‐growth tech business looking for a Principal Software Developer to take a leading, hands‐on role across their platform. You'll design and deliver complex features, shape architectural decisions, and drive...

You will join a cross-functional product engineering team working on the evolution and modernisation of a core SaaS platform. The focus is on building scalable, cloud-native services while improving reliability, performance, and long-term maintainability.

You should be comfortable with most of our core technologies:

You will also engage with the open-source community through GitHub issues and pull requests, helping guide usage and improve the quality of the SDKs based on real-world feedback. This role offers the chance to deepen your Go skills, work with modern tooling, and contribute to SDKs that developers rely on in production.

You will design and build APIs that enable products, partners and AI services to work together, including: Building RESTful APIs using C# .

You will likely bring: Strong experience building backend services in C# .

SOFTWARE ENGINEER REMOTE (OPTION TO RELLOCATE) £110K + EQUITY THE COMPANY This innovative AI startup is redefining safety and reliability in AI models. While competitors like GPT and DeepMind struggle with hallucinations and illegal content generation, this company adds safety control layers to ensure AI outputs are trustworthy and compliant. Working with high-profile, they're building AI...

You will be working closely with the Machine Learning team; however, you are not required or expected to have background in Machine Learning. This is an applied role, and we are looking to hire a software engineer with experience in cloud computing and distributed systems. In this role, you will:

Senior Software Engineer in Test Enterprise SaaS Platform | Manchester | Hybrid (2 days onsite) Salary: up to £70,000 + 10% bonus The Opportunity This is a chance to join a high-growth, enterprise SaaS organisation building complex, high-throughput platforms used at scale across the UK and Europe. Quality Engineering is treated as a core engineering discipline, not a support function. As the...

About the Job This position is for a Senior Software Engineer with a minimum of 5 years of experience in backend development and a passion for building robust, scalable systems. We are looking for an engineer with a strong background in the C# .NET ecosystem, and a preference for candidates with significant experience on AWS. Are you ready for a challenge? We're looking for a dynamic software...

We’re working with a crypto-native DeFi trading platform, backed by a leading digital assets firm (client name kept confidential), to hire a Senior Backend Developer. The team is building high-performance, decentralized trading infrastructure with a strong focus on execution quality and user experience. This is a hands-on role covering backend engineering, smart contract integration, and...

Software Engineer Fully Remote | Permanent | Competitive Salary + Benefits Harrington Starr has partnered with a leading Global Payments Technology company who are seeking to hire a Software Engineer to join their growing engineering team. This is an exciting opportunity to work on scalable, resilient systems while contributing to real-world solutions in the financial technology space. Key...