Senior Software Engineer

Senior Software Engineer in Fareham (PO14), PO14 | Spectrum IT Recruitment Limited Find a job Post a job Sign up Never miss an opportunity. We’ll find jobs that fit Get Started Search These jobs were popular with other job seekers Mid-level Software Developer Nextech Group Limited Clacton-On-Sea (CO15), CO15 £35000 - £40000 per annum 2 days ago Senior Software Developer AWD Online Hounslow (TW4) From £70,000 to £85,000 per annum + Benefits 1 week ago Software Engineer AALTO Farnborough 2 days ago Full Stack Developer Experis UK Negotiable 6 hours ago NEW Lead Software Engineer .Net Microlise Eastwood, Nottingham (NG16), NG16 3AG £55,000 per annum 1 week ago Embedded Software Engineer ZENOVO LTD Bristol (BS16), BS16 7FR Up to £55,000 + Bonus & Benefits (Depending on Experience) 20 hours ago NEW Senior Software Engineer Tyréns AKT The City, City of London (EC2), E1 6DB Competitive salary and excellent benefits package 1 week ago Senior Backend Engineer Develop Park Gate, Fareham (PO15), PO15 5TT From £55,000 to £70,000 per annum 1 month ago Lead Software Engineer - Umbraco TPXImpact Holdings Plc UK From £55,000 to £62,000 per annum 3 days ago Software Engineer Sanderson Recruitment Devon Up to £68000 per annum 5 hours ago NEW Senior Software Engineer Spectrum IT Recruitment Limited View Profile Fareham (PO14), PO14 Permanent Contract; On-site Published: 1 day ago £60000 - £70000 per annum + plus benefits Apply Save Senior Software Engineer Spectrum IT Recruitment Limited Apply Senior Software Engineer Location: Fareham, Hampshire Working Pattern: Office-based during probation, then minimum 3 days onsite per week Salary: £60k - £70k plus benefits An opportunity has arisen for an experienced Senior Software Engineer to join an established and innovative technology business specialising in payment infrastructure and transaction processing. This is an excellent opportunity for a talented backend engineer with strong commercial experience in either Go or PHP to work on business-critical systems that process real financial transactions. You don't need experience in both languages. The business is looking for someone with strong expertise in one, with the opportunity to develop their skills in the other. You'll join a collaborative engineering team working on modern microservices, APIs, distributed systems and large-scale software platforms, taking ownership of technical solutions from initial design through to production. The Role As a Senior Software Engineer, you'll be responsible for designing, developing and maintaining secure, scalable backend applications and services. Working closely with frontend developers, DevOps engineers and security specialists, you'll contribute to a range of payment processing and CRM platforms. Key responsibilities include: Design, develop and maintain backend services using Go and/or PHP. Build and enhance integrations with payment processors, fraud prevention services and third-party APIs. Develop secure, scalable APIs using REST, gRPC and Protocol Buffers. Work with relational and NoSQL databases, including MySQL, Cassandra, ScyllaDB and Elasticsearch. Contribute to microservices-based applications deployed using Kubernetes. Write clean, maintainable and well-tested code. Take ownership of production services, including monitoring, debugging and performance optimisation. Modernise existing applications and help reduce technical debt. Collaborate with engineering teams on architecture, design and technical improvements. Mentor other developers and contribute to engineering best practices. Essential experience: Significant commercial backend software development experience. Strong programming experience in Go (Golang) OR PHP. For Go developers: experience with concurrency, HTTP services and/or gRPC. For PHP developers: strong PHP 8, object-oriented programming, Composer and PHPUnit experience. Strong SQL skills and experience with MySQL or similar relational databases. Experience designing, developing and integrating REST APIs, gRPC services or webhooks. Understanding of API reliability, error handling and secure coding practices. Experience writing automated tests and producing high-quality code. Familiarity with Git, code reviews and CI/CD pipelines. Strong problem-solving skills and the ability to take ownership of technical delivery. Desirable Experience Any of the following would be advantageous, although not essential: Commercial experience with both Go and PHP. Microservices and distributed systems architecture. Docker and Kubernetes. Messaging technologies such as RabbitMQ, NATS or Pub/Sub. NoSQL databases, including Cassandra, ScyllaDB or Elasticsearch. Protocol Buffers and API versioning. CRM platforms, subscription services or recurring billing systems. Please contact Tom Rayner on 02380 765 808 or email Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy. Apply Spectrum IT Recruitment Limited Banking and Financial Services 34 Jobs The company is part of Company Profile In Short Industry IT & Telecommunications Founded 2008 Location Chilworth, Southampton Company size 11-50 Who We Are Established in 2008,
Spectrum IT is a leading Software and Technology specific recruitment agency, providing
permanent and contract IT resource for businesses. Our team of around 30
employees are based on the University of Southampton Science Park, a key hub
for technology on the South Coast. Who We Can Help Spectrum IT works
with a wide cross section of businesses, from start-ups to multinationals. 95%
of placements are within Software focused businesses, or where Software is key
to the business model. Typically, around 200 different businesses are supported
annually, with more than 900 candidates placed. How We Work We bring together talented
IT professionals with businesses of all sizes. Our extensive experience can
help your business with single hires right through to building large software
development project teams of 50+. Regular engagement with the IT community
enables us to keep up to date with the ever-changing IT landscape. Similar Senior Software Engineer Jobs Popular with Other Job Seekers Mid-level Software Developer Nextech Group Limited Clacton-On-Sea (CO15), CO15 £35000 - £40000 per annum 2 days ago Senior Software Developer AWD Online Hounslow (TW4) From £70,000 to £85,000 per annum + Benefits 1 week ago Software Engineer AALTO Farnborough 2 days ago Full Stack Developer Experis UK Negotiable 6 hours ago NEW Lead Software Engineer .Net Microlise Eastwood, Nottingham (NG16), NG16 3AG £55,000 per annum 1 week ago Embedded Software Engineer ZENOVO LTD Bristol (BS16), BS16 7FR Up to £55,000 + Bonus & Benefits (Depending on Experience) 20 hours ago NEW Senior Software Engineer Tyréns AKT The City, City of London (EC2), E1 6DB Competitive salary and excellent benefits package 1 week ago Senior Backend Engineer Develop Park Gate, Fareham (PO15), PO15 5TT From £55,000 to £70,000 per annum 1 month ago Lead Software Engineer - Umbraco TPXImpact Holdings Plc UK From £55,000 to £62,000 per annum 3 days ago Software Engineer Sanderson Recruitment Devon Up to £68000 per annum 5 hours ago NEW Senior Software Engineer jobs Senior Software Engineer jobs in Fareham IT jobs IT jobs in Fareham Software Development jobs Software Development jobs in Fareham Jobs in Fareham Software Engineer jobs Software Developer jobs Graduate Software Engineer jobs Senior Software Application Engineer jobs Senior Software Engineering jobs Senior Applications Developer jobs Senior Lead Developer jobs Senior Developer jobs Senior Engineer jobs Junior Software Engineer jobs Senior IT Engineer jobs Senior Applications Engineer jobs Senior Development Engineer jobs Senior Site Engineer jobs Senior Research Engineer jobs Senior Systems Design Engineer jobs Get hired. Find success. Get started Totaljobs About us Careers at Totaljobs Press Partners Privacy policy Terms and conditions Cookies Legal and compliance Accessibility Jobseekers Salary Planner Jobseeker help centre Career advice Recruiters Post job ads Recruiting news Courses Contact us - recruiters Recruit internationally Download App store Play store The Stepstone Group UK Ltd © 2026 We use cookies We use cookies to operate our website, measure how people use our services to help us improve them, enrich usage profiles and personalise the content displayed to you. We also share information about your use of our site with our social media, advertising, and analytics partners, who may combine it with other information, to show you relevant ads on other websites, and to measure the performance of our advertising. Some cookies are essential for the operation of our website. If you would prefer us not to use the non-essential cookies, click “Just necessary”, but please be aware that this may impact your experience of our site and the services we are able to offer. Click “Accept” if you’re happy for us to place these cookies. You can change your mind at any time. Store and / or access information on a device Cookies, device identifiers, or other information can be stored or accessed on your device for the purposes presented to you. Personalised ads and content, ad and content measurement, audience insights and product development Ads and content can be personalised based on a profile. More data can be added to better personalise ads and content. The performance of ads and content can be measured. Insights about audiences who have viewed the ads and content can be extracted. Data can be used to build or improve user experience, systems and software. Display third-party content (social networks, videos) Content from social networks and embedded content from third-party providers can be displayed. Identifiers derived from authentications If an identifier is created based on authentication data, such as contact details associated with online accounts you have set up on websites or apps (e.g. email address, phone number) or customer identifiers (e.g. an identifier provided by your telecommunications provider), then this identifier can be used to recognize you across websites, apps and devices if you are logged in with the same contact details. Just Necessary Accept All Cookie Settings You can also exercise your right to object to data processing based on legitimate interests under “Privacy Policy”. Privacy Policy Cookie policy