251 to 275 of 353 Permanent Senior Software Engineer Jobs

Senior Full-Stack Software Engineer (C#, PHP, JavaScript)

Hiring Organisation
Pathhub
Location
Manchester Area, United Kingdom
post summary Date posted: 18 January 2026 Pay: £55,000.00-£69,955.55 per year Job Description: Senior Full-Stack Software Engineer (C#, PHP, JavaScript) Salary: £55,000 – £70,000 (dependent on experience) Location: Hybrid – 40% remote/60% office-based Main Office: Uralensis Innov8 Ltd, Victoria Works … Road, Bolton, BL2 6DP Experience: 5+ years Contract: Full-time only About the Role Uralensis Innov8 Ltd is seeking a highly skilled and motivated Senior Full-Stack Software Engineer with proficiency in C#, PHP, and JavaScript to join our growing med-tech team. You will be central ...

Senior Software Development Engineer in Test (SDET) - Test Systems & Tooling

Hiring Organisation
Motorola Solutions
Location
Cork, Ireland
Employment Type
Permanent
Salary
EUR 125,000 - 150,000 Annual
Motorola Solutions values your privacy .Senior Software Development Engineer in Test (SDET) - Test Systems & Tooling page is loaded Senior Software Development Engineer in Test (SDET) - Test Systems & Toolinglocations: Cork, Ireland (ZEI15)time type: Full timeposted on: Posted Todayjob requisition id: R61297 Company Overview At Motorola … million in research and development (R&D). We're now opening a new Research & Development Centre in Cork, Ireland focused on designing software for the company's comprehensive land mobile radio (LMR) portfolio, with plans for expansion across other technologies in the future. Motorola Solutions' ecosystem of technologies ...

Senior Software Engineer - C

Hiring Organisation
ECM Selection (Holdings) Limited
Location
Cambridge, Cambridgeshire, United Kingdom
Employment Type
Permanent
Salary
£55000 - £85000/annum
Software development in C++ and Rust for low latency transactions This company creates ultra-high-speed FPGA-based hardware and highly optimised software for specialised applications requiring maximum performance. Due to continued growth, they are seeking an experienced C++ software engineer to join their Cambridge-based … development team. In this senior engineering role, you will help shape the software component of their system. Written in C++ and increasingly in Rust, this code runs in a Linux environment, and is responsible for control functionality and oversight of the hardware. You would be contributing ...

Senior Software Engineer

Hiring Organisation
Innovate Recruitment Ltd
Location
Hertford, Hertfordshire, United Kingdom
Employment Type
Permanent
Principal Software Engineer – HMI & Cyber Working Pattern: On-site, 5 days per week (due to workload classification) Security Clearance: British Citizen or Dual UK National with British citizenship The Opportunity They are looking for passionate, highly skilled Principal Software Engineers to join thier HMI & Cyber team, developing … next generation of laser defence capability for the Royal Navy. You’ll take a technical lead role across the full software development lifecycle, delivering complex, safety- and security-critical solutions while mentoring and supporting engineers within your team. The company is committed to supporting career development while maintaining ...

Senior Software Engineer

Hiring Organisation
Noloco Limited
Location
Dublin, Ireland
Employment Type
Permanent
Salary
EUR 125,000 - 150,000 Annual
with a team spread across Ireland, Spain, and North America. Our Mission Our mission is to let businesses of all sized build truly custom software, without writing code . As a Senior Backend Software Engineer , you'll be a key driver of this mission, designing … iteration. This is a unique opportunity to own core backend services in a fast-growing SaaS company and help shape the future of how software is made. What You'll Be Doing Building the backend for various user-facing features Optimise client APIs and services Improve database and infrastructure ...

Senior Software Engineer

Hiring Organisation
IMV Technologies
Location
Bellshill, Scotland, United Kingdom
Within the R&D Software Engineering team, the software engineer participates in the research, design, production and maintenance of software on IMV solutions. The aim is to bring technical innovations and new functionalities on web & mobile solutions using communication protocols with our veterinarian devices … needs on our Cloud solutions Proposing and define technical solutions to answer those needs and innovate Participating in workload estimation and follow planning Designing software architecture based on iOs and Android, or Web technologies Developing programs and communication protocols using language as C/C++, java, Objective C, Flutter ...

Senior Software Engineer

Hiring Organisation
YLD
Location
United Kingdom
Senior Golang Engineer - we are partnered with a stealth start-up company based out of London that are utilising AI to build the next generation of software. Golang Engineers will be highly skilled coding with Go and potentially have a background with other backend related languages too such … NodeJS or Python. Required: 3+ years of relevant work experience working with Golang. 5+ years of commercial software engineering experience with backend technologies. Pro level AI competencies working with the likes of Claude and ChatGPT Pro. Experience with Agile software development methodologies- TDD/pairing/CI/ ...

Senior AI Software Engineer - Hybrid (Athlone)

Hiring Organisation
Ericsson GmbH
Location
Leinster, Ireland
Employment Type
Permanent
Salary
EUR 125,000 - 150,000 Annual
leading telecommunications company in Athlone, Ireland, is seeking a Senior Software Engineer specializing in AI and ML. The role involves researching and building AI frameworks, collaborating with teams to shape AI use cases, and ensuring the reliability of AI solutions. The ideal candidate will have over five … years of experience, a strong foundation in software engineering, and proficiency in Python, cloud-native technologies, and AI frameworks. This position offers a hybrid work model and numerous employee benefits including a healthy work-life balance. ...

Senior Software Engineer, Atlas Growth Dublin

Hiring Organisation
MongoDB
Location
Dublin, Ireland
Employment Type
Permanent
Salary
EUR 125,000 - 150,000 Annual
looking to speak to candidates who are based in Dublin for our hybrid working model. Role Overview Atlas Growth 2 seeks a Senior Software Engineer. Senior engineers lead complex projects, provide mentorship to teammates, and shape the technical direction of our team. They are expected to proactively … suggest and implement improvements to our product, processes, and infrastructure, in addition to leading their projects. Candidate Profile 6+ years of software engineering experience Proficiency in Java, Go, C++/C, or a similar compiled language Experience writing database queries and indexes-either document-based or relational Experience writing ...

Senior AI Software Engineer, Education GenAI (Hybrid)

Hiring Organisation
MongoDB
Location
Dublin, Ireland
Employment Type
Permanent
Salary
EUR 125,000 - 150,000 Annual
leading database technology firm is seeking a Senior Software Engineer for its Education AI Team in Dublin. This role involves building features for their AI Assistant and integrating it with their products. Candidates must have at least 5 years of experience and a strong proficiency in TypeScript. ...

Senior Software Engineer

Hiring Organisation
SR2 | Socially Responsible Recruitment | Certified B Corporation™
Location
London Area, United Kingdom
Senior Python Engineer | London | £100k to £150k + benefits This is a role for engineers who want to work on problems that actually matter. You will be building backend systems that support advanced AI research and deployment decisions. The software you work on influences how complex models … shape how new systems are designed and brought into production Collaborating closely with technical stakeholders to solve ambiguous problems Taking real ownership over the software you build Most of the work is Python, but this is not scripting. You will be designing systems that need to be correct, performant ...

Principal/Senior Embedded Software Engineer

Hiring Organisation
Verso Recruitment Group
Location
Cambridge, England, United Kingdom
seeking a Principal/Senior Embedded Software Engineer to take a leading role in the development and evolution of our embedded software across both new products and established designs. This position is ideal for an experienced engineer who enjoys guiding technical direction, mentoring others … driving projects to completion in a practical, real‐world engineering environment. About the Role As a senior member of the engineering team, you will shape software architecture, lead development activities, and ensure high‐quality delivery across multiple projects. You’ll work closely with multidisciplinary teams — including hardware, systems ...

Senior Embedded Software Engineer

Hiring Organisation
KO2 Embedded Recruitment Solutions LTD
Location
Runcorn, Cheshire, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 Annual
Role : Senior Embedded Software Engineer Location: Runcorn plus flexible Hybrid Working from Home. Salary: £60,000 - £70,000 DOE Our client is a pioneering medical technology business developing critical, point-of-care devices used in environments where performance, safety, and reliability are non-negotiable - from GP surgeries ...

Senior Software Engineer

Hiring Organisation
Sopra Steria
Location
United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
Software Engineer looking for a new challenge? Help save lives every day - join Sopra Steria, the force behind STORM, the command and control system trusted by UK emergency services. We are hiring Software Developers to support the ongoing development of our STORM application, built using VB.Net with … Hertfordshire area to participate in in-person team meetings, and collaborative sessions. What you will be doing: Designing, developing, and maintaining scalable software applications. Writing clean, efficient, and well-documented code. Participating in the full software development lifecycle including requirements analysis, design, implementation, testing, and deployment. Collaborating with ...

Senior Java Software Engineer

Hiring Organisation
Thyme
Location
City of London, London, United Kingdom
Senior Java Engineer (Core Java) £100,000 - £130,000 Central London - Hybrid A high-growth, privately backed Enterprise SaaS company is seeking a Senior Core Java Engineer to join its London-based engineering team. The organisation builds large-scale, mission-critical platforms used by some … Contribute across design, development, testing, deployment and support Collaborate closely with other engineers to deliver customer-centric solutions Mentor and be mentored within a senior engineering team Promote best practices around code quality, testing and reliability Participate in team support and operational responsibilities Technology Environment Core Java (deep ...

Senior Software Development Engineer

Hiring Organisation
Matchtech
Location
Farnborough, Hampshire, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
client, a leader in the Defence & Security sector, is seeking an exceptional Senior Software Development Engineer to join their dynamic team. This is a permanent role that offers an excellent opportunity to work with cutting-edge technology, contributing to projects that are critical to national security … electronic warfare, surveillance, and complex system integration. Key Responsibilities: Support the delivery of cutting-edge projects, applying your development skills across the full software development lifecycle. Design, develop, and test new software, adhering to industry best practices. Build relationships within the customer community to support business growth. Collaborate ...

Senior Data Software Engineer (Public Sector Consultancy)

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Permanent
Salary
£70,000
Senior Data Software Engineer (Public Sector Consultancy) Salary: £55 - 72K + Benefits Location: London or Manchester (aligned to office for client on-site requirements) Working Pattern: Hybrid/On-site depending on client needs Security Clearance: DV Clearance required - Can Start With Active SC You will join … potential. Empowering individuals and building strong teams are central to delivering meaningful outcomes for clients and citizens. This role is suited to Data Software Engineers with a strong technical foundation and an interest in data engineering, data science, and machine learning. You will work within agile, multidisciplinary teams alongside ...

Senior Java Software Engineer - User Interfaces

Hiring Organisation
Kaon Ltd
Location
Guildford, Surrey, United Kingdom
Employment Type
Permanent
Salary
GBP 90,000 Annual
Senior Java Software Engineer - User Interfaces Location: Office basedGuildford, GU1 4QU Salary: Circa £50K - £85K per annum, DOE + Benefits, Bonus and Relocation Contract: Full time, Permanent Benefits: Competitive salary, Annual bonus, Private medical insurance, Membership fees to professional organisations, such ...

Senior Software Engineer - Netting (Dublin, Hybrid)

Hiring Organisation
G Treasury SS, LLC
Location
Dublin, Ireland
Employment Type
Permanent
Salary
EUR 125,000 - 150,000 Annual
Overview Software Engineer - Netting The mission, should you choose to accept it, is to pioneer and scale GTreasury's platform into the future. Do you want to work with a small, hardworking, and awesome development team, whom you will help to catch a whale on a fishing line … vision is to create the next-generation of technology tools for the global, corporate financial office. We are seeking an innovative and forward-thinking Software Developer passionate about building a world-class platform through a world-class team. Creating technical software excellence and spearheading application development in design ...

C# .NET Senior Software Engineer

Hiring Organisation
ECM Selection (Holdings) Limited
Location
Cambridge, Cambridgeshire, United Kingdom
Employment Type
Permanent
Salary
£65000 - £75000/annum DoE + benefits
Developing high quality software for essential public infrastructure Join this sociable, collaborative Cambridge-based development team, developing new features and enhancements to their business-to-business transaction management software. This software serves an important purpose in keeping vital infrastructure functioning efficiently. Due to the longevity of the product … highest standards to ensure it's long term reliability and maintainability. Due to continued growth, they are seeking an experienced C# .NET Software Engineer to join them. The management see a stable and cohesive development team as an intrinsic part of their success - they are therefore keen ...

Software Engineer (Mid-Senior)

Hiring Organisation
Understanding Recruitment
Location
London Area, United Kingdom
Software Engineer | Energy & Climate Tech | London (Hybrid) A fast-growing energy technology company is building the intelligence layer for a cleaner, more resilient power grid - and they’re looking for engineers who want their code to have measurable, real-world impact. The team is developing large-scale optimisation ...

Senior Software Engineer-DevSecOps

Hiring Organisation
Boeing
Location
Berkeley, Missouri, United States
Employment Type
Permanent
Salary
USD Annual
that's welcoming, respectful and inclusive, with great opportunity for professional growth. Find your future with us. The Boeing Company is currently seeking a Senior DevSecOps Engineer to support our Air Proprietary 2 Mission Systems team located in Berkeley, Missouri. This position will focus on supporting the Boeing … Defense, Space & Security (BDS) Software Engineering organization. The Mission Systems Senior DevSecOps Engineer will be responsible for establishing, configuring, and maintaining the Mission Systems (MS) software development environments across a variety of security levels. This role serves as the primary DevSecOps point of contact for Mission ...

Senior Software Engineer - .Net - Fully Remote

Hiring Organisation
SRG
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £75,000 per annum
looking for a Lead Software Engineer to work on impactful, in-house platforms with a forward-thinking engineering team. My client is an established technology-driven company based in the North West of England, and are hiring a permanent .NET developer to help drive innovation and build robust … software solutions that scale. The Role You'll play a key role in developing and maintaining my clients internal software platforms, working across the full development lifecycle. The ideal candidate will have strong experience with backend technologies and a proactive approach to cloud-native development. Location This ...

Lead Back-End Software Engineer (Experienced or Senior)

Hiring Organisation
Boeing
Location
Berkeley, Missouri, United States
Employment Type
Permanent
Salary
USD Annual
respectful and inclusive, with great opportunity for professional growth. Find your future with us. The Boeing Company is currently seeking a Lead Back-End Software Engineer (Experienced or Senior) to lead our Model-Based Engineering Software (MBSE) team located in Berkeley, Missouri. This position will focus … listed location options. Position Responsibilities: Leads development, documentation and maintenance of standardized, efficient, and innovative processes, tools, methodologies, and performance metrics to streamline the software engineering lifecycle and enable continuous integration, delivery, and deployment of safety critical software Provide comprehensive technical oversight for different systems, guiding teams ...

Senior Software Engineer - Python, React, AWS Lead

Hiring Organisation
Liberty Information Technology
Location
Galway, Ireland
Employment Type
Permanent
Salary
EUR 125,000 - 150,000 Annual
leading tech firm in Galway is seeking a Software Engineer to deliver high-quality software solutions in a collaborative environment. You will work with AWS, Python, and React while also mentoring junior team members. This role offers flexible working patterns, health insurance, and opportunities for career growth. ...