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Backend Engineer Jobs in Portsmouth
Overview
Looking for Backend Engineer jobs in Portsmouth? Discover top IT opportunities with competitive salaries and exciting projects on Haystack. Whether you're a skilled backend developer or just starting out, find the perfect backend engineering role in Portsmouth today and take your tech career to the next level. Explore our latest listings now!
Lead Full Stack Software Developer
Spectrum It Recruitment Limited
Multiple locations
Hybrid
Senior
£100,000
RECENTLY POSTED
+2

Technical Lead Full Stack Developer

(TypeScript, JavaScript, Node)

Location: Hybrid working within Hampshire
Salary: Competitive + benefits

We’re working with a fast-growing UK SaaS technology company that builds data-driven digital products used by commercial teams to better understand and engage with their customers. They are now looking for an experienced technical lead full stack developer to play a key role in shaping and delivering their next generation of customer-facing platforms.

This is a hands-on technical leadership role where you’ll be involved from early design through to production delivery, working with a modern cloud-based stack and deploying to live environments on a daily basis.

The Role

  • Lead technical delivery across a high-performing development squad (10+)
  • Contribute to solution design, system architecture and domain modelling
  • Build proof-of-concepts and spike complex or uncertain areas of work
  • Break down requirements into deliverable epics and user stories alongside product and initiative managers
  • Develop and deliver production-ready code across the full stack
  • Ensure high standards of quality, maintainability, performance and security
  • Support and improve live systems once deployed
  • Influence technical direction, tooling and best practice across the wider engineering function

Tech Environment

You’ll work with a modern stack including:

  • Node.js microservices
  • JavaScript & TypeScript
  • Vue.js
  • Redis, SQL Server & Snowflake
  • AWS cloud infrastructure
  • CI/CD pipelines and DevSecOps practices

About You

  • Strong full stack development experience (ideally 10+ years)
  • 5+ years of JavaScript and TypeScript experience
  • Solid background in system design and scalable architectures
  • Experience building large, production SaaS platforms
  • A clean-code mindset (SOLID principles, design patterns, testable code)
  • Experience working in mature CI/CD and continuous deployment environments
  • A commercial mindset when designing and delivering software
  • Excellent collaboration skills and confidence working with stakeholders
  • Interest in using AI to accelerate and improve software development
  • A passion for performance, security and engineering best practice
  • Degree in Computer Science or equivalent real-world experience

What’s On Offer

  • Competitive salary and benefits package
  • Hybrid working (1 day per week in the Fareham office)
  • Opportunity to join a scaling UK SaaS business
  • Strong engineering culture with a focus on quality and continuous improvement
  • Supportive, collaborative working environment
  • Community and charity initiatives, including volunteer days

Send your CV across to me on email or call 02380 765 808 for more information.

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Principle Python Software Engineer
Spectrum It Recruitment Limited
Southampton
Hybrid
Senior - Leader
£65,000
RECENTLY POSTED

Architect complex systems, owning technical decisions, and crafting Python-powered solutions that make a real impact to customers Principal Python Software Engineer Hybrid - commutable distance of the Southampton area Circa £65k + Up to 15% Bonus The Role As a Principal Python Software Engineer, you’ll join an Agile team united by curiosity, collaboration, and the belief that great technology can truly make a difference. You’ll work with Python, AWS, and MariaDB to design and develop systems that keep pace with fast-moving business needs. Make key architectural decisions, drive technical strategy, and lead the engineering evolution of a platform used across the organisation. You’ll also play a central role in coaching and mentoring engineers, helping to build a culture where innovation thrives and quality is non-negotiable. As our product team grows, you’ll have the opportunity to step into leadership, guiding the next generation of engineering talent. This role would suit with: Python, AWS, and modern development practices Experience of steering architectural decisions and elevating engineering standards. Mentoring experience Agile / Scrum Current tech stack includes: Python AWS Docker MariaDB Jira Azure DevOps Agile This Principe Python Software Engineer role is paying circa £65k with benefits including, 15% Bonus, 25 days holiday, enhanced pension, onsite gym, Car Scheme, healthcare scheme and more. Apply now or contact Chris Lynes at Spectrum IT for more information. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy. TPBN1_UKTJ

Oracle Software Engineer
Spectrum It Recruitment Limited
Southampton
Hybrid
Junior - Mid
£40,000
RECENTLY POSTED

Solving real problems with PL/SQL precision and designing ETL processes that unlock the true value of enterprise date.

Work on complex data challenges, modern tooling, and create meaningful technical impact.

Oracle Software Engineer
Circa £38k + Up to 15% bonus
Twice a month in the Southampton area based office

The Role

You’ll join a cross-functional product team that thrives on pace, collaboration, and innovation. Every day, you’ll help shape the data foundations that keep our products and services running seamlessly for thousands of users.

You’ll design and develop clean, efficient, and fully tested PL/SQL code, contributing your expertise to build reliable features that teams rely on.
Working with our established data structures, you’ll turn complex requirements into robust, performant database solutions.

As a key participant in our sprint cycle, you’ll embrace agile ways of working, bringing transparency, adaptability, and continuous improvement to everything you do.

This role would suit

Someone with commercial PL/SQL experience using ANSI syntax and a strong approach to unit testing.

Experience with ETL processes, to handle data with confidence, turning it into reports and transformations that power the business.

Experience with tools and frameworks like Bitbucket, JSON, REST, Confluence, Jira, TOAD, and Scrum

And with skills in Python, Azure DevOps, APIs, or other databases,

Current tech stack includes:

  • Oracle, PL/SQL, ETL, Toad,
  • Git, Jira, BitBucket, Agile,
  • UT PL/SQL (Unit testing framework),
  • Azure DevOps, API first,
  • MongoDB, PostGres,
  • Python

This Oracle Software Engineer role is paying circa £38k with benefits including, 15% Bonus, 25 days holiday, enhanced pension, onsite gym, Car Scheme, healthcare scheme and more.

Apply now or contact Chris Lynes at Spectrum IT for more information.

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Software Engineer
Euro Projects Recruitment
Fareham
In office
Junior - Mid
£40,000
RECENTLY POSTED

Software Engineer, Southampton, £35,000 £40,000

  • Software Engineer / Computer scientist / Software Development opportunity within a fast-growing medical device company, developing game-changing rapid diagnostic technology for hospital laboratories.
  • Salary guide £35,000 £40,000 depending on experience (some flexibility)
  • Flexible working hours, 27 days holiday (increasing by 1 day per year), well-funded MedTech start-up environment.

You will be part of a small, highly skilled team bringing a revolutionary technology to market following recent UKCA approval, with UK rollout underway and international expansion planned.

This Software Engineer job will suit:

  • A Software Engineer or Computer Scientist with some experience developing software in a regulated environment (medical devices, aerospace, automotive or similar).
  • Software Engineers familiar with developing software to industry standards as well as structured, test-driven processes.
  • Candidates with strong mathematical and statistical skills, who can apply this to to algorithm development.
  • Those with a degree in a relevant discipline (2.1 minimum).
  • Experience in C/C++, Python, MATLAB or similar languages.
  • Self-motivated engineers comfortable working with minimal supervision in a fast-paced start-up environment.

This Software Engineer job will involve:

  • Development of software for current and future diagnostic instruments, including middleware, firmware and algorithm development.
  • Writing well-documented, maintainable, and test-driven code in line with medical device & industry specific standards (e.g. IEC 62304, ISO 13485, ISO 14971).
  • Development and execution of unit, sub-system and system-level test plans.
  • Supporting software integration with hardware and electromechanical systems.
  • Working closely with internal teams including production, service and commercial teams, as well as external suppliers.

This Software Engineer jobis based in Southampton and is commutable from Fareham, Portsmouth, Eastleigh, Hedge End, Winchester and surrounding areas.

To apply please send your CV to Sam Hilton at Euro Projects Recruitment Ltd.
Please note that if you are not contacted within ten days, your application has not been successful.

Oracle Software Engineer
Spectrum IT Recruitment
Southampton
Hybrid
Junior - Mid
£38,000/day - £40,000/day
RECENTLY POSTED

Solving real problems with PL/SQL precision and designing ETL processes that unlock the true value of enterprise date. Work on complex data challenges, modern tooling, and create meaningful technical impact. Oracle Software Engineer Circa £38k + Up to 15% bonus Twice a month in the Southampton area based office The Role You’ll join a cross-functional product team that thrives on pace, collaboration, and innovation. Every day, you’ll help shape the data foundations that keep our products and services running seamlessly for thousands of users. You’ll design and develop clean, efficient, and fully tested PL/SQL code, contributing your expertise to build reliable features that teams rely on. Working with our established data structures, you’ll turn complex requirements into robust, performant database solutions. As a key participant in our sprint cycle, you’ll embrace agile ways of working, bringing transparency, adaptability, and continuous improvement to everything you do. This role would suit Someone with commercial PL/SQL experience using ANSI syntax and a strong approach to unit testing. Experience with ETL processes, to handle data with confidence, turning it into reports and transformations that power the business. Experience with tools and frameworks like Bitbucket, JSON, REST, Confluence, Jira, TOAD, and Scrum And with skills in Python, Azure DevOps, APIs, or other databases, Current tech stack includes: Oracle, PL/SQL, ETL, Toad, Git, Jira, BitBucket, Agile, UT PL/SQL (Unit testing framework), Azure DevOps, API first, MongoDB, PostGres, Python This Oracle Software Engineer role is paying circa £38k with benefits including, 15% Bonus, 25 days holiday, enhanced pension, onsite gym, Car Scheme, healthcare scheme and more. Apply now or contact Chris Lynes at Spectrum IT for more information. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy

Software Engineer
TUV SUD Limited
Fareham
Hybrid
Junior - Mid
Private salary
RECENTLY POSTED

At TÜV SÜD we are passionate about technology. Innovations impact our daily lives in countless ways, and we are dedicated to being a part of that progress. We test, we audit, we inspect, we advise. We never stop challenging ourselves for the safety of society and its people. We breathe technology, we strive for professional excellence, and we leave a mark. We take the future into our hands. We are TÜV SÜD.

Please note the working pattern for this role is In-office, full time for the first 3 months, after up to 2 days per week remote available.

Role Overview

As an Innovations engineer you will be helping maintain and develop software-based solutions to business problems in a small team of full-stack software engineers. These solutions will be aimed at ensuring TUV SUD is well placed to deliver future services in a timely, efficient and competitive manner. You will be supporting and developing tools that will be used internally to support the business as we push to digitize and automate our internal processes. As part of the Innovations Team, you will liaise with various parts of the business to support existing applications and provide new and innovative software solutions for internal company usage. You will be expected to input on software requirements, software implementation and propose effective solutions.

Duties and Responsibilities

* Writing Visual Basic/.NET software to support and update a key legacy application used across the business.

* Writing C#/.NET software to automate manual processes and help improve efficiencies across the business.

* Functioning as a full-stack developer, working within a small team that is delivering both front-end and back-end software.

* Contributing to the design of Innovations projects.

* Participating in and contributing to Innovations practices such as Agile ceremonies and trainings.

* Automation of data collection, analysis and reporting using databases (SQL and MongoDB).

* Code sharing within the Innovations Team to speed up development process.

* Training for Service Line employees in areas where new software tools have been deployed by the Innovations team.

* Produce and prove solutions in concept with working prototypes.

* Provide regular updates on project progress.

* Track project progress using DevOps.

Essential Criteria:

* HND (or higher) or equivalent qualification in Engineering or equivalent experience.

* Demonstrable professional experience in software engineering, with experience with C#, VB and .NET.

* Experience with SQL, preferably T-SQL.

* Experience with MongoDB.

* Experience with both front- and back-end development.

* Ability to develop a working software solution in a team environment from concept to finished product.

* Team player, maintaining a high level of accuracy and attention to detail, good communication skills at all levels.

* Self-motivated with a desire to learn new skills and make a business impact.

Desirable Criteria:

* SQL Server experience, preferably using stored procedures.

* Experience using Azure DevOps in an Agile team.

* Experience with Agile ceremonies.

* Knowledge of Radio Frequency techniques and technologies.

* Experience with controlling RF test equipment and positional controllers.

* Strong communication skills and ability to communicate technical problems and potential solutions clearly to non-technical staff

Further Information

TÜV SÜD in the UK offers a competitive salary and benefits package that includes a minimum of 33 days holiday entitlement (for full-time employees, including public holidays), a contributory Group Personal Pension Plan and a non-contributory Group Life Assurance Scheme. We also offer various Salary Exchange/Sacrifice schemes (buying/selling holiday, cycle to work scheme, pensions), incentive schemes and comprehensive wellbeing support (Employee Assistance Programme, Dental Scheme and Occupational Health services). Dependent on their role, employees may also be eligible for hybrid/permanent homeworking, a Company Car/Car Allowance and Private Medical Insurance.

At TÜV SÜD, we have employees from more than 100 different countries collaborating together. People of different backgrounds, skills, and pursuing different life goals. Our strength comes from these countless and varied perspectives.

We are committed to be an inclusive and diverse workplace by welcoming people of all backgrounds. We want Diversity & Inclusion (D&I) to be a foundation of our company and create an environment where all our employees can trust they will be treated with respect, regardless of gender, nationality, ethnic background, faith, beliefs, disabilities, age, sexual orientation, or identity. As such, our employees are expected to behave at all times in a manner consistent with TÜV SÜD Code of Ethics and Company values.

We firmly believe embedding D&I in the heart of what we do will inherently contribute to the success of TÜV SÜD. Click here to find out more about Diversity at TÜV SÜD

Senior Software Engineer
STSdefence
Gosport
In office
Senior
Private salary
RECENTLY POSTED

The Senior Software Engineer will work within the Systems and Software team in the Programmes area of STS Defence, developing and maintaining software throughout the Software Development Lifecycle from requirements elicitation, through to in service delivery.
The post will provide technical leadership on software projects for key stakeholders and on software development activities undertaken by the company. This includes responsibility for managing code and quality reviews to ensure relevant quality standards are met across the software team.
The Senior Software Engineer will also assist in support of wider business objectives exploring new technologies for product creation, development and R&D to grow our software development capability stream; and provide support to existing software projects as required.
Duties:
Senior Software Engineer responsible for co-ordination of day to day software development in a small team
Designing and implementing software changes through change control process as part of spiral development.
Continuous improvement of Software Engineering capabilities, maintaining a leading edge capability
Leading the planning, delivery and assurance of software work packages and ensuring software engineering process and best practice followed
Oversight, direction and guidance to the allocated project team members, through the planning and delivery of installation tasks and projects
The provision of software engineering technical input into bid preparation and contracts
Ongoing review and improvement of policies, standards and procedures for software engineering activities
Support project software requirements including supporting customer and other stakeholder meetings as required
The exploitation of opportunities for further business development
Skills/Qualifications:
Degree Qualified (BSc or equivalent) in Software Engineering, Computer Science or equivalent experience
Experience with C++, C#, Java, and web development (HTML, CSS, JS, etc.)
Exposure to other embedded development (Linux, bash/shell scripting, terminal command-line scripts, Qt/QML)
Strong experience architecting cradle-to-grave software solutions including Technology Readiness level (TRL) process.
Proven track record with creating and maintaining servers, primarily those with versioning control, Bugzilla, project management capabilities and automated testing capabilities
Strong experience of software development lifecycle processes, ensuring both a quality of process and firm traceability from requirements to implementation
Experience of creating and managing cloud-based big data solutions desirable
Proven track record of working collaboratively with a diverse range of internal and external stakeholders
Additional Information
All candidates must be in a position to obtain UK security clearance to SC level, with further security clearance to DV level desirable. Additional restrictions may apply on certain defence programmes
All candidates will be required to adhere to STS Defence core values.

Software Engineer
Certain Advantage
Portsmouth
Hybrid
Mid - Senior
£1 - £55
RECENTLY POSTED
+1

Software Engineer (Java)SC Clearance RequiredCertain Advantage are hiring for a Software Engineer based in Portsmouth.This role is on an initial 12-month contract and is required to be onsite 3 days a week. Your responsibilities:

  • Contribute across the full software development lifecycle, including design, development, testing, and deployment.
  • Design software solutions using UML/SysML and contribute to technical architecture within a microservices environment.
  • Develop high-quality Java applications using Spring Boot, Spring Framework and related technologies.
  • Implement and maintain RESTful web services over HTTPS within distributed systems.
  • Write and maintain automated tests, ensuring quality and reliability are built into the solution from the outset.
  • Participate in Agile ceremonies including sprint planning, estimation, reviews and retrospectives.
  • Collaborate closely with team members and wider stakeholders to design, implement and test new product features.
  • Contribute to CI/CD pipelines, source control (Git) and issue tracking tools such as Jira.
  • Ensure compliance awareness and act with integrity, supporting standards, reputation and sustainable growth.

The individual:

  • Java Core (version 8+)
  • Spring Boot, Spring Framework - Good knowledge of Developing in Spring with Hibernate
  • Good Knowledge of developing REST within HTTPS
  • Experience of developing within a microservice architecture
  • Distributed systems
  • Knowledge and use of software design patterns
  • Agile Development Processes
  • CI/CD delivery techniques
  • Source code management (we use GIT)
  • Use of Issue tracking systems (such as Jira)
  • UML/SysML using Enterprise Architect or similar
  • Ability to self-motivate and to work well within a team environment.
  • Ability to promote innovation in self and others
  • Ability to interact with internal & external stakeholders in a confident and professional manner

Does this sound like your next career move? Apply today.Working with Certain AdvantageWe go the extra mile to find the best people for the job. If you’re hunting for a role where you can make an impact and grow your career, we’ll work with you to find it.We work with businesses across the UK to find the best people in Finance, Marketing, IT and Engineering. If this job isn’t for you, head to certainadvantage.co.uk and register for job alerts and career guidance tips.

Lead Full Stack Software Developer
Spectrum IT Recruitment
Multiple locations
Hybrid
Senior
£80,000 - £100,000
RECENTLY POSTED
+2

Technical Lead Full Stack Developer

(TypeScript, JavaScript, Node)

Location: Hybrid working within Hampshire
Salary: Competitive + benefits

We’re working with a fast-growing UK SaaS technology company that builds data-driven digital products used by commercial teams to better understand and engage with their customers. They are now looking for an experienced technical lead full stack developer to play a key role in shaping and delivering their next generation of customer-facing platforms.

This is a hands-on technical leadership role where you’ll be involved from early design through to production delivery, working with a modern cloud-based stack and deploying to live environments on a daily basis.

The Role

  • Lead technical delivery across a high-performing development squad (10+)
  • Contribute to solution design, system architecture and domain modelling
  • Build proof-of-concepts and spike complex or uncertain areas of work
  • Break down requirements into deliverable epics and user stories alongside product and initiative managers
  • Develop and deliver production-ready code across the full stack
  • Ensure high standards of quality, maintainability, performance and security
  • Support and improve live systems once deployed
  • Influence technical direction, tooling and best practice across the wider engineering function

Tech Environment

You’ll work with a modern stack including:

  • Node.js microservices
  • JavaScript & TypeScript
  • Vue.js
  • Redis, SQL Server & Snowflake
  • AWS cloud infrastructure
  • CI/CD pipelines and DevSecOps practices

About You

  • Strong full stack development experience (ideally 10+ years)
  • 5+ years of JavaScript and TypeScript experience
  • Solid background in system design and scalable architectures
  • Experience building large, production SaaS platforms
  • A clean-code mindset (SOLID principles, design patterns, testable code)
  • Experience working in mature CI/CD and continuous deployment environments
  • A commercial mindset when designing and delivering software
  • Excellent collaboration skills and confidence working with stakeholders
  • Interest in using AI to accelerate and improve software development
  • A passion for performance, security and engineering best practice
  • Degree in Computer Science or equivalent real-world experience

What’s On Offer

  • Competitive salary and benefits package
  • Hybrid working (1 day per week in the Fareham office)
  • Opportunity to join a scaling UK SaaS business
  • Strong engineering culture with a focus on quality and continuous improvement
  • Supportive, collaborative working environment
  • Community and charity initiatives, including volunteer days

Send your CV across to me on email (url removed) or call (phone number removed) for more information.

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Developer
Deerfoot Recruitment Solutions Limited
Southampton
Hybrid
Junior - Mid
£45,000 - £55,000
RECENTLY POSTED

Software Developer (NodeJS) Southampton (Hybrid - 1 day on-site) Up to £55,000 | Full-time | Permanent

Join a fast-growing global B2B company following a successful year. Known for a positive culture and strong staff retention, they offer genuine career progression and exciting project work.

The Role:

  • Develop web applications and REST APIs using NodeJS, JavaScript, and MySQL
  • Support cloud infrastructure (AWS desirable)
  • Troubleshoot production issues
  • Collaborate across teams to deliver business solutions
  • Maintain high standards of code quality and security

Requirements:

  • Proven Server Side development experience
  • NodeJS and SQL skills
  • Cloud/AWS experience beneficial
  • Strong communication and teamwork skills

Benefits: 26 days holiday + bank holidays, private healthcare, enhanced pension, car discounts, wellbeing support, training and progression.

Apply now to take the next step in your development career

Deerfoot Recruitment Solutions Ltd is a leading independent tech recruitment consultancy in the UK. For every CV sent to clients, we donate £1 to The Born Free Foundation. We are a Climate Action Workforce in partnership with Ecologi. If this role isn’t right for you, explore our referral reward program with payouts at interview and placement milestones. Visit our website for details. Deerfoot Recruitment Solutions Ltd is acting as an Employment Agency in relation to this vacancy.

Principle Python Software Engineer
Spectrum IT Recruitment
Southampton
Hybrid
Senior - Leader
£65,000 - £69,000
RECENTLY POSTED

Architect complex systems, owning technical decisions, and crafting Python-powered solutions that make a real impact to customers

Principal Python Software Engineer
Hybrid - commutable distance of the Southampton area
Circa 65k + Up to 15% Bonus

The Role

As a Principal Python Software Engineer, you’ll join an Agile team united by curiosity, collaboration, and the belief that great technology can truly make a difference. You’ll work with Python, AWS, and MariaDB to design and develop systems that keep pace with fast-moving business needs.

Make key architectural decisions, drive technical strategy, and lead the engineering evolution of a platform used across the organisation. You’ll also play a central role in coaching and mentoring engineers, helping to build a culture where innovation thrives and quality is non-negotiable.

As our product team grows, you’ll have the opportunity to step into leadership, guiding the next generation of engineering talent.

This role would suit with:

  • Python, AWS, and modern development practices
  • Experience of steering architectural decisions and elevating engineering standards.
  • Mentoring experience
  • Agile / Scrum

Current tech stack includes:

  • Python
  • AWS
  • Docker
  • MariaDB
  • Jira
  • Azure DevOps
  • Agile

This Principe Python Software Engineer role is paying circa 65k with benefits including, 15% Bonus, 25 days holiday, enhanced pension, onsite gym, Car Scheme, healthcare scheme and more.

Apply now or contact Chris Lynes at Spectrum IT for more information.

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Java Developer - SC Cleared
CBS Butler
Portsmouth
Hybrid
Mid - Senior
£50/hour - £60/hour
RECENTLY POSTED

Java Developer - SC Cleared

  • SC Cleared role

  • £50-£60 per hour

  • Hampshire based - hybrid working

  • Inside IR35

Key Skills:

  • Java Core, Spring Boot/Framework

  • REST within HTTPS

About the Company

We are a global leader in advanced engineering, delivering cutting-edge solutions across aerospace, space, defence and related high-technology sectors.

The Role

You will join a 7-person Scrum team within a major programme delivering management systems for a next-generation satellite platform. You’ll contribute across the full software development life cycle, from architecture and design to development, testing and deployment.

This is a hands-on role for someone who enjoys solving complex engineering problems and working in a fast-moving, agile environment. Microservices, automated testing and modern Java engineering are central to this project.

What You’ll Be Doing

  • Designing, developing and testing high-quality software in an agile (Scrum) environment
  • Contributing to system architecture and design, including UML modelling
  • Building scalable microservices-based solutions
  • Writing clean, maintainable, well-tested Java code
  • Participating in sprint planning, estimation and delivery
  • Working closely with engineers, architects and stakeholders to ship real-world systems

Essential Skills & Experience

  • Java Core (8+)
  • Spring Boot/Spring Framework with Hibernate
  • RESTful web services over HTTPS
  • Microservices architecture
  • Distributed systems
  • Software design patterns
  • Agile development methodologies (Scrum)
  • CI/CD pipelines
  • Git source control
  • Jira or similar issue tracking tools
  • UML/SysML modelling (Enterprise Architect or similar)
Senior Software Engineer
STSdefence
Gosport
In office
Senior
Private salary

The Senior Software Engineer will work within the Systems and Software team in the Programmes area of STS Defence, developing and maintaining software throughout the Software Development Lifecycle from requirements elicitation, through to in service delivery.

The post will provide technical leadership on software projects for key stakeholders and on software development activities undertaken by the company. This includes responsibility for managing code and quality reviews to ensure relevant quality standards are met across the software team.

The Senior Software Engineer will also assist in support of wider business objectives exploring new technologies for product creation, development and R&D to grow our software development capability stream; and provide support to existing software projects as required.

Duties:

Senior Software Engineer responsible for co-ordination of day to day software development in a small team

Designing and implementing software changes through change control process as part of spiral development.

Continuous improvement of Software Engineering capabilities, maintaining a leading edge capability

Leading the planning, delivery and assurance of software work packages and ensuring software engineering process and best practice followed

Oversight, direction and guidance to the allocated project team members, through the planning and delivery of installation tasks and projects

The provision of software engineering technical input into bid preparation and contracts

Ongoing review and improvement of policies, standards and procedures for software engineering activities

Support project software requirements including supporting customer and other stakeholder meetings as required

The exploitation of opportunities for further business development

Skills/Qualifications:

Degree Qualified (BSc or equivalent) in Software Engineering, Computer Science or equivalent experience

Experience with C++, C#, Java, and web development (HTML, CSS, JS, etc.)

Exposure to other embedded development (Linux, bash/shell scripting, terminal command-line scripts, Qt/QML)

Strong experience architecting cradle-to-grave software solutions including Technology Readiness level (TRL) process.

Proven track record with creating and maintaining servers, primarily those with versioning control, Bugzilla, project management capabilities and automated testing capabilities

Strong experience of software development lifecycle processes, ensuring both a quality of process and firm traceability from requirements to implementation

Experience of creating and managing cloud-based big data solutions desirable

Proven track record of working collaboratively with a diverse range of internal and external stakeholders

Additional Information

All candidates must be in a position to obtain UK security clearance to SC level, with further security clearance to DV level desirable. Additional restrictions may apply on certain defence programmes

All candidates will be required to adhere to STS Defence core values.

TPBN1_UKTJ

Technical Lead Developer
Spectrum IT Recruitment
Portsmouth
Hybrid
Senior
£90,000 - £100,000
+1

Technical Lead Developer - Full Stack
(TypeScript, Node)

Location: Portsmouth, Hampshire (Hybrid - 1 day per week onsite)
Salary: 90,000 - 100,000 + benefits

We’re working with a fast-growing UK SaaS technology company that builds data-driven digital products used by commercial teams to better understand and engage with their customers. They are now looking for an experienced Technical Lead Full Stack Developer to play a key role in shaping and delivering their next generation of customer-facing platforms.
This is a hands-on technical leadership role where you’ll be involved from early design through to production delivery, working with a modern cloud-based stack and deploying to live environments on a daily basis.

The Role

  • Lead technical delivery across a high-performing development squad (10+)
  • Contribute to solution design, system architecture and domain modelling
  • Build proof-of-concepts and spike complex or uncertain areas of work
  • Break down requirements into deliverable epics and user stories alongside product and initiative managers
  • Develop and deliver production-ready code across the full stack
  • Ensure high standards of quality, maintainability, performance and security
  • Support and improve live systems once deployed
  • Influence technical direction, tooling and best practice across the wider engineering function

Tech Environment
You’ll work with a modern stack including:

  • TypeScript
  • Node.js microservices
  • Vue.js
  • Redis, SQL Server & Snowflake
  • AWS cloud infrastructure
  • CI/CD pipelines and DevSecOps practices

About You

  • Strong full stack development experience (ideally 10+ years)
  • 5+ years of TypeScript experience
  • Solid Node.js Experience
  • Background in system design and scalable architectures
  • Experience building large, production SaaS platforms
  • A clean-code mindset (SOLID principles, design patterns, testable code)
  • Experience working in mature CI/CD and continuous deployment environments
  • A commercial mindset when designing and delivering software
  • Excellent collaboration skills and confidence working with stakeholders
  • Interest in using AI to accelerate and improve software development
  • A passion for performance, security and engineering best practice
  • Degree in Computer Science or equivalent real-world experience

What’s On Offer

  • Hybrid working (1 day per week in the Portsmouth office)
  • Opportunity to join a scaling UK SaaS business
  • Strong engineering culture with a focus on quality and continuous improvement
  • Supportive, collaborative working environment
  • Community and charity initiatives, including volunteer days

Interested in learning more?
Apply now or contact us for a confidential discussion about the role and company - (url removed)

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Software Engineer - Java
Empresaria UK Ltd
Portsmouth
In office
Mid
Private salary
+1

The Role

As part of a wider programme, you will be involved in the design, development, and testing of a brand-new product. You’ll work closely with fellow developers, architects, and stakeholders to build robust, scalable solutions using modern Java and microservices technologies. Automated testing is a key pillar of the project, so experience in this area is highly valued.

Key Responsibilities

  • Develop high-quality code within an Agile (Scrum) environment
  • Collaborate with the team to design, implement, and test new product features
  • Participate in sprint planning, including task estimation
  • Contribute across all stages of the software development life-cycle
  • Ensure adherence to compliance requirements and act with integrity at all times

Required Skills & Experience

  • Strong experience with Java (8+)
  • Spring Boot / Spring Framework, including development with Hibernate
  • Experience building RESTful APIs over HTTPS
  • Hands-on experience with microservice architectures
  • Understanding of distributed systems
  • Knowledge and practical use of software design patterns
  • Experience working in Agile development processes
  • Familiarity with CI/CD delivery techniques
  • Source code management using Git
  • Use of issue tracking tools such as Jira
  • UML / SysML modelling using Enterprise Architect or similar tools
  • Experience with automated testing (highly beneficial)

Personal Attributes

  • Self-motivated and able to work effectively within a team
  • Proactive mindset with a passion for innovation and continuous improvement
  • Confident and professional communicator, able to engage with internal and external stakeholders

Why Join?

  • Work on cutting-edge satellite systems and complex technical challenges
  • Be part of a collaborative, experienced Scrum team
  • Opportunity to influence design decisions and technical direction
  • Strong focus on quality, automation, and modern engineering practices
Software Engineer
TUV SUD Limited
Fareham
Hybrid
Junior - Mid
Private salary

At T V S D we are passionate about technology. Innovations impact our daily lives in countless ways, and we are dedicated to being a part of that progress. We test, we audit, we inspect, we advise. We never stop challenging ourselves for the safety of society and its people. We breathe technology, we strive for professional excellence, and we leave a mark. We take the future into our hands. We are T V S D.

Please note this role offers Hybrid working, with the expectation of being onsite 2/3 days per week.

Role Overview

As an Innovations engineer you will be helping maintain and develop software-based solutions to business problems in a small team of full-stack software engineers. These solutions will be aimed at ensuring TUV SUD is well placed to deliver future services in a timely, efficient and competitive manner. You will be supporting and developing tools that will be used internally to support the business as we push to digitize and automate our internal processes. As part of the Innovations Team, you will liaise with various parts of the business to support existing applications and provide new and innovative software solutions for internal company usage. You will be expected to input on software requirements, software implementation and propose effective solutions.

Duties and Responsibilities

  • Writing Visual Basic/.NET software to support and update a key legacy application used across the business.
  • Writing C#/.NET software to automate manual processes and help improve efficiencies across the business.
  • Functioning as a full-stack developer, working within a small team that is delivering both front-end and back-end software.
  • Contributing to the design of Innovations projects.
  • Participating in and contributing to Innovations practices such as Agile ceremonies and trainings.
  • Automation of data collection, analysis and reporting using databases (SQL and MongoDB).
  • Code sharing within the Innovations Team to speed up development process.
  • Training for Service Line employees in areas where new software tools have been deployed by the Innovations team.
  • Produce and prove solutions in concept with working prototypes.
  • Provide regular updates on project progress.
  • Track project progress using DevOps.

Essential Criteria:

  • HND (or higher) or equivalent qualification in Engineering or equivalent experience.
  • Demonstrable professional experience in software engineering, with experience with C#, VB and .NET.
  • Experience with SQL, preferably T-SQL.
  • Experience with MongoDB.
  • Experience with both front- and back-end development.
  • Ability to develop a working software solution in a team environment from concept to finished product.
  • Team player, maintaining a high level of accuracy and attention to detail, good communication skills at all levels.
  • Self-motivated with a desire to learn new skills and make a business impact.

Desirable Criteria:

  • SQL Server experience, preferably using stored procedures.
  • Experience using Azure DevOps in an Agile team.
  • Experience with Agile ceremonies.
  • Knowledge of Radio Frequency techniques and technologies.
  • Experience with controlling RF test equipment and positional controllers.
  • Strong communication skills and ability to communicate technical problems and potential solutions clearly to non-technical staff

Further Information
T V S D in the UK offers a competitive salary and benefits package that includes a minimum of 33 days holiday entitlement (for full-time employees, including public holidays), a contributory Group Personal Pension Plan and a non-contributory Group Life Assurance Scheme. We also offer various Salary Exchange/Sacrifice schemes (buying/selling holiday, cycle to work scheme, pensions), incentive schemes and comprehensive wellbeing support (Employee Assistance Programme, Dental Scheme and Occupational Health services). Dependent on their role, employees may also be eligible for hybrid/permanent homeworking, a Company Car/Car Allowance and Private Medical Insurance.

At T V S D, we have employees from more than 100 different countries collaborating together. People of different backgrounds, skills, and pursuing different life goals. Our strength comes from these countless and varied perspectives.

We are committed to be an inclusive and diverse workplace by welcoming people of all backgrounds. We want Diversity & Inclusion (D&I) to be a foundation of our company and create an environment where all our employees can trust they will be treated with respect, regardless of gender, nationality, ethnic background, faith, beliefs, disabilities, age, sexual orientation, or identity. As such, our employees are expected to behave at all times in a manner consistent with T V S D Code of Ethics and Company values.

We firmly believe embedding D&I in the heart of what we do will inherently contribute to the success of T V S D. Click here to find out more about Diversity at T V S D.

Fullstack Developer
Spectrum IT Recruitment
Fareham
Hybrid
Mid
Private salary
+4

Spectrum IT are working with an established and growing UK technology organisation that delivers specialist software platforms used across both public and private sector environments. Their solutions support operational and customer-facing systems in sectors such as retail, hospitality, and large-scale venues.

Due to continued product investment and new project work, they’re looking for a C# Developer to join their collaborative development team based near Fareham. This is a remote working role with office visits between 1-4 days per month based on project/hardware needs.

This is a role where you’ll do far more than code to a fixed spec. The team works closely with real-world users and evolving product suites, giving developers genuine input into how systems are designed, built, and improved.

As part of an Agile development team delivering enhancements and new features across a suite of integrated platforms. Projects are varied and often involve a blend of back-end, web, and device-integrated technologies.

Your work is likely to include:

Developing and enhancing applications using C# and .NET

Contributing to web-based systems using ASP.NET and modern front-end frameworks like Angular

Mobile Apps (iOS, Android, Windows) using Xamarin

Working on retail payment platforms, EPOS hardware and peripherals

Working on cross-platform and mobile-integrated solutions

Taking part in R&D and innovation-focused projects

Applying design patterns and best practice engineering principles

Collaborating in an Agile/Scrum environment

Skills / Experience

C# / .NET

ASP.NET

Agile / Scrum

JavaScript / TypeScript

Angular

Xamarin (desirable)

API Integrations

Device / Hardware Integration

Cross-Platform Mobile experience

Keen problem Solver

Candidates for this role must be able to attend the Fareham office when required and be with a reasonable commuitng distance. For more information and to submit your interest, please apply with an updated CV.

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Java Software Developer
Line Up Aviation
Portsmouth
In office
Mid
£55/hour
+1

On behalf of our client, we are seeking to recruit a Java Software Developer on an initial 12-month contract. As the Java Software Developer, you shall contribute to all stages of the software development lifecycle and thus have solid experience in design (particularly using UML), development (particularly using Java technologies) and test. The developer should have experience of working with microservices. Automated testing is a critical part of the project so any experience of this would be highly beneficial

Role: Java Software Developer
Pay: 55 per hour Via Umbrella
Location: Portsmouth
Contract: Monday - Friday 37 hours per week, 12 months contract
IR35 Status: Inside
Security Clearance: Security Clearance required on submission

Responsibilities

  • Development of code within an agile environment (scrum).
  • Working with the team to design, implement and test features for a new product development.
  • Task estimation in accordance with sprint planning.

Essential Skills:

  • Java Core (version 8+)
  • Spring Boot, Spring Framework - Good knowledge of Developing in Spring with Hibernate
  • Good Knowledge of developing REST within HTTPS
  • Experience of developing within a microservice architecture
  • Web Services using RESTful APIs
  • Distributed systems
  • Knowledge and use of software design patterns
  • Agile Development Processes
  • CI/CD delivery techniques
  • Source code management (we use GIT)
  • Use of Issue tracking systems (such as Jira)
  • UML/SysML using Enterprise Architect or similar
  • Ability to self-motivate and to work well within a team environment.
  • Ability to promote innovation in self and others
  • Ability to interact with internal & external stakeholders in a confident and professional manner

If you are interested in applying for this position and you meet the requirements, please send your updated CV to: Natalie Dalkin at Line Up Aviation

Line Up Aviation has carved its own place in the recruitment of Aviation and Aerospace personnel all over the world for more than 30 years. We work with some of the industry’s best known companies who demand the highest standard of applicants.

" on Twitter for all of our latest vacancies, news and pictures from our busy UK Head Office. Interact with us using the tag at anytime! Thank you for your follow!"

Software Developer
Belcan
Portsmouth
Hybrid
Mid - Senior
£55/hour
+1

Software Developer - NextGeneration Satellite Systems

SC Clearance Required

Standard 37 hours per week (working 4.5 days between the hours of 7am - 7pm, hours agreed at business discretion) Hybrid (3 days onsite) is acceptable

JAVA Experience Essential

A global leader in aeronautics, space, and advanced technology is seeking a skilled Software Developer to join a highperforming Scrum team working on the management systems for a new satellite. The organisation brings together thousands of passionate innovators dedicated to making the world more connected, safer, and smarter. Its culture of diversity, teamwork, and technical excellence drives extraordinary achievements across air, land, and space.

Role Overview

The Software Developer will join a 7member Scrum team within a wider programme delivering a nextgeneration satellite management system. The role spans the full software development lifecycle, requiring strong experience in UMLbased design, Java development, microservices, and automated testing. This position is ideal for someone who thrives in an agile environment and enjoys solving complex engineering challenges.

Key Responsibilities

  • Develop highquality, maintainable code within an agile Scrum environment
  • Collaborate with the team to design, implement, and test new product features
  • Contribute to architectural discussions and UMLdriven design activities
  • Provide accurate task estimates and support effective sprint planning
  • Apply best practices in microservices, automation, and CI/CD
  • Engage confidently with internal and external stakeholders
  • Maintain a strong awareness of compliance risks and act with integrity at all times

Required Skills & Experience

  • Proficiency in Java (version 8+)
  • Strong knowledge of Spring Boot, Spring Framework, and Hibernate
  • Experience developing RESTful services over HTTPS
  • Handson experience with microservice architectures and distributed systems
  • Solid understanding of software design patterns
  • Familiarity with Agile development processes
  • Experience with CI/CD pipelines
  • Proficiency with Git for source control
  • Experience using issuetracking tools such as Jira
  • UML/SysML modelling experience (Enterprise Architect or similar)
  • Strong selfmotivation and ability to work effectively within a team
  • Ability to promote innovation and continuous improvement
  • Confident communication with stakeholders at all levels

This vacancy is being advertised by Belcan

Full Stack Developer
Tracware
Isle of Wight
Remote or hybrid
Junior - Mid
Private salary

Full Stack Developer- Competitive Salary DOE Ryde, Isle of Wight/ Remote

The Role

Do you enjoy building clean, reliable software that users genuinely depend on every day? Ready to take ownership of features from concept to release while working with modern tools across the stack? If so, this could be your next move.

As our Full Stack Developer at Tracware, you ll design and deliver features that power aviation maintenance operations across the globe. You ll work across both front-end and back-end systems, turning ideas into practical tools that engineers and operators rely on.

You ll collaborate closely with our Technical Manager and development team, shaping a platform that continues to grow and modernise. Your work will be visible, valued and used in real-world environments where reliability matters.

If you re ready to grow your career and help shape software used across global aviation, apply today and let s start the conversation.

Key Responsibilities:

  • Build features across HTML, CSS, JavaScript/TypeScript and C#/.NET
  • Develop and integrate REST APIs with strong validation and performance
  • Work with MS SQL Server and EF Core to model and maintain data
  • Write automated tests and maintain clear, readable code
  • Take part in code reviews and improve engineering standards
  • Troubleshoot issues across the stack and suggest practical fixes

The Company

Tracware provides one of the world s most comprehensive aviation MRO process control platforms. Our software supports airlines, MROs and aviation teams worldwide.

We re entering an exciting stage of global growth and product development. Joining now means you ll help shape the future of the platform, not just maintain it. As a Full Stack Developer, you ll see your ideas quickly move into production and make a genuine difference.

The Benefits

  • Flexible working Isle of Wight office or remote
  • Competitive Salary, different offers dependent on experience.
  • Varied technical challenges and modern tooling
  • Supportive, close-knit team with direct access to decision-makers
  • Opportunities to learn, develop and progress as the business grows
  • Occasional UK and international travel

The Person

You ll bring:

  • Commercial software development experience
  • Strong front-end skills with HTML, CSS and JavaScript/TypeScript
  • Solid understanding of C#/.NET and object-oriented design
  • Experience building and consuming REST APIs
  • Knowledge of SQL Server and relational databases
  • A collaborative, detail-focused approach
  • Experience with Vue.js, Docker, authentication standards or modernising legacy systems is useful but not essential.

Most importantly, you enjoy solving problems and take pride in delivering quality work.

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Frequently asked questions
Portsmouth offers a variety of Backend Engineer roles ranging from junior to senior levels, including positions in software development, API integration, cloud services, and database management across diverse industries.Employers typically look for proficiency in programming languages such as Java, Python, C#, or Node.js, experience with databases like MySQL or MongoDB, knowledge of RESTful APIs, and familiarity with cloud platforms such as AWS or Azure.You can browse available Backend Engineer job listings in Portsmouth on Haystack, create a profile, upload your CV, and apply directly through our platform with just a few clicks.Yes, many companies in Portsmouth offer remote or flexible working arrangements for Backend Engineers. Job listings on Haystack often specify if such options are available.Salaries vary depending on experience and company size, but Backend Engineers in Portsmouth typically earn between £35,000 and £65,000 per year. Senior roles or those with specialized skills may offer higher compensation.
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