C++ Software Engineer Portsdown West (PO17) Full-time Onsite Salary £50,000 - £65,000 25 days annual leave inclusive of up to 3 days Christmas shut-down Buy or sell up to 5 days annual leave Annual Wellbeing allowance Two pension schemes to choose from Private Medical Insurance + discounts for additional family members Life Assurance scheme up to 4 x salary Share Save scheme Electric/Hybrid Car leasing scheme Cycle to work scheme Retail discounts Career development support Our Electronic Warfare Operations Support (EWOS) team. A group of over 60 engineers, scientists, and former military specialists who combine their expertise to help our customers protect their people and platforms safe while achieving their full operational potential. About the Role MASS is growing its Electronic Warfare Operational Support (EWOS) team at Portsdown West, (Fareham, Hampshire). We are looking for a talented C++ Software Engineer with experience of working with simulation models, to support cutting edge research, development, and delivery projects, led by our technical customer, Dstl. This role is largely based within an in-house simulation framework (ITASE) with responsibilities to include: Developing toolsets, models, and integration activities in the ITASE framework. Incorporating or adapting additional existing Dstl data/models (e.g. signatures) into studies. Library linking, development from theory, and re-coding of existing algorithms and data. Understanding and aligning assumptions and data across components. Understanding and implementing the interactions of multiple entities in a scenario. Within the role, you will have the opportunity to influence real-world operations through the software you develop. This could be through behavioural effects within a faster-than-real-time simulation environment, or plugins to interface hardware models in a real-time environment. This role will offer the variety and autonomy to showcase your skills as a software developer. Given the importance of assurance to the end user, your knowledge of the software development lifecycle and modern technologies (e.g. HPC, distributed architectures focusing on edge computing) is essential to better enable development at pace. This work will allow you the opportunity to interact with customers, understanding how the software models are to be used, and their high-level requirements. Your creativity and autonomy will help translate these asks into deliverable software products. What we are looking for: Strong background in software development for simulation environments. Strong C++ programming skills. Experience with Visual Studio/Windows/Linux development tools. Clear communication skills to explain/adapt models. Working autonomously to solve unique problems. Supporting Skills: RF system knowledge and/or broader systems engineering experience Experience using MATLAB or Python (model integration). Familiarity with Defence/Air Platform protection systems and threat systems (e.g. SAMs, IADS, Sensors, FPVs). Knowledge of RF countermeasure and flyout simulation tools, ideally gained within a defence setting. Experience with HPC architectures. Non-negotiables: Due to the highly secure nature of the projects that you will be involved with, youmustbe: A UK National and eligible to work in the UK Eligible to obtain and maintain a UK GovernmentSC-levelsecurity clearance Who is MASS? MASS is an independent, global technology company, trusted by highly secure organisations to provide advanced, digital services that manage data and keep information safe. With our heritage in defence, we offer robust solutions to sectors where security expertise is essential. We work in partnership with customers, using skilled, technical experts. We think innovatively to provide tailored, agile and resilient solutions that secure advantage, so youre ready for digital transformation. MASS is an equal opportunities employer; we know that our people are smart, skilled and motivated and in return we provide a friendly workplace where everyone is valued and has the chance to make an impact. Join MASS and play a key role in operational analysis that strengthens defence capability and protection. TPBN1\_UKTJ

Software Engineer

Salary:Competitive, negotiable based on experience, plus benefits including a 7% pension contribution, 25 days holiday, and life insurance

Location:Portsmouth, hybrid working

Sirius Digital is a trusted provider of expertise in Software Engineering, Data Science, and AI, supporting clients in the defence, nuclear, space, and energy sectors. We specialise in software modelling and simulation, robotics and autonomous systems, as well as data science and engineering, delivering technical consultancy and innovative solutions.

We are seeking a Software Engineer who combines strong technical skills with problem-solving ability and effective communication. You will work independently or as part of small teams, helping Sirius Digital grow while advancing your own expertise. We offer a competitive benefits package and clear opportunities for rapid career progression.

Key Responsibilities:

• Deliver technical consultancy projects to a high standard
• Develop and implement software solutions across areas such as wargaming, simulation, autonomous systems, digital twins, and synthetic environments
• Build and sustain strong client relationships
• Apply mathematical and computational techniques to solve real-world problems, developing innovative approaches as needed

What Were Looking For:

• Experience designing and delivering performant software applications, ideally within a technical consultancy environment
• Knowledge of software modelling and simulation techniques
• Ability to analyse requirements and define technical specifications
• Experience in one or more of the following: videogame engine technology (e.g., Unreal Engine, Godot), entity or event-based simulation, robotics, and autonomous systems
• Proficiency in C/C++, familiarity with Python, C#, Zig.
• Willingness to learn new technologies and programming languages
• Ability to apply mathematical or statistical methods to scientific or applied challenges
• Confidence working with large codebases and understanding hardware/performance constraints
• Strong interpersonal skills for client and stakeholder engagement
• Experience preparing technical reports and presenting to customers
• Willingness to travel within the UK and work on client sites as required

Desirable:

• Background working with Defence Digital, DE&S, Dstl, Frontline Commands, or the UK Defence industry
• Degree in a STEM or computing discipline, or equivalent experience
• Proficiency with MS Office (Excel, PowerPoint, Word)

What We Offer:

• Mentoring, internal and external training, and access to sector specialists and online learning
• Comprehensive benefits including a 7% pension contribution, private healthcare, life assurance, additional holiday purchase options, and an electric vehicle scheme

Other Requirements:

Candidates must have an existing right to live and work in the UK.

Candidates will need to undergo an internal BPSS check prior to gaining site access.

Candidates will also need to either be willing and eligible or to undergo a Security Clearance check (SC level) or hold a current SC clearance upon starting their employment with the company. To gain SC clearance you will normally need at least 5 years UK residency.

Fire and Security Engineer Portsmouth surrounding areas 34k- 40k doe My client requires experienced engineers to join their established team. The ideal candidate should be able to carry out preventative and corrective maintenance as well as small installation works or extensions to existing systems. You must be multi-disciplined and able to work with the minimum of supervision on Intruder, Fire, Access, CCTV and Emergency Lighting systems. You should possess a good working knowledge of EN50131, BS5839 & BS5266. An understanding of NSI codes of practice will be an advantage but not essential as some training in this area can be provided for the right candidate. My client has a varied client base and therefore you will need to be adaptable, and have good written and verbal communication skills. As part of a team you will also be required to take your turn on our out of hours call out rota. You can expect to receive Company vehicle for business and personal use Company Uniform Company phone Company Pension scheme Negotiable Salary dependant on experience Opportunity for overtime If this sounds like you please call George on (01254) (phone number removed) for a informal discreet chat. Or send your cv.

Principal Embedded Software Engineer– Southampton - £70k - £80k Hexwired Recruitment has partnered with a world renowned Electronics manufacturer based in Southampton who are now seeking a Principal Embedded Software Engineer to help develop and maintain a brand new system the company is developing. The company are recognised globally, and are expanding because of a healthy order book. The company are now seeking a Principal Embedded Software Engineer with excellent experience leading technical projects as well as working autonomously on new projects. This is a Principal Embedded Software role focusing on Processor design as well as comm interfaces. Due to the nature of the work, this will be a mostly onsite role. Key Requirements: \* Bachelors, Masters or PhD in Computer science, Embedded Systems, Maths, Physics or similar \* 10+ years commercial Embedded software experience \* Excellent Firmware RTOS experience \* Good commercial Serial Comms experience (RS232, RS422, TCP/IP etc) \* Any experience working on testing embedded code is highly desirable. The company are looking to offer circa £80k dependent on experience. Along with an excellent benefits package. If you’re interested in this Principal Embedded Software role, please apply. For more information on this role, or any other jobs across; Embedded, C++ programming, Embedded Linux, FPGA, Python, Electronics, Hardware, Golang Development, Machine Learning, Data Science or Simulation contact us today