Senior Software Developer (Voice / SIP Platforms)

£55,000 £65,000 DOE | Hybrid Working (1x day a month office)

Are you a seasoned developer with a passion for building robust, real-time communications platforms? Looking for a role where you can work on complex, enterprise-grade systems while still being close to the technical detail?

This is an opportunity to join a well-established technology business with a strong reputation in communications and cloud-based solutions. Youll be part of a small, highly skilled development team working on the evolution of a large-scale SIP platform and its associated APIs, with plenty of scope to influence design, tooling, and future direction.

The Role

Working closely with the Development Manager, youll play a key role in enhancing and extending an existing SIP and VoIP platform used in production environments. This is a hands-on role suited to an experienced developer who enjoys solving complex protocol-level problems, building secure services, and integrating with third-party systems.

Youll contribute across the full software lifecycle from design and development through to troubleshooting live issues while helping to improve development standards, security practices, and platform resilience.

Key Responsibilities

• Design, develop, and enhance a production SIP/VoIP platform and supporting services
• Build additional value-added services and integrations around the core platform
• Develop integrations with external systems, including AI-driven services such as speech recognition, transcription, and analytics
• Ensure secure design and implementation across software and infrastructure
• Diagnose and resolve complex SIP, RTP, and platform-level issues
• Contribute to secure development processes and compliance with recognised security standards (e.g. ISO27001, PCI-DSS)
• Collaborate closely with other engineers and stakeholders, sharing knowledge and best practice

Essential Skills & Experience

• Strong, hands-on experience with SIP/VoIP technologies and protocols (e.g. SIP, SDP, RTP, RFC2833/4733)
• 5+ years experience developing in Python or another object-oriented language
• Solid understanding of object-oriented design principles
• Experience building and consuming HTTP/REST APIs
• Familiarity with Python frameworks and tooling such as Flask or Django, Pytest, SQLAlchemy, Marshmallow
• Strong background in secure systems design (software and network level)
• Proven experience using Wireshark for SIP/RTP analysis and fault-finding
• Version control experience with Git-based platforms
• Containerisation using Docker
• Strong Linux experience (Ubuntu-based systems)
• Excellent communication skills, comfortable working with both technical and non-technical stakeholders

Desirable / Nice to Have

• Experience with FreeSWITCH (configuration and/or source code exposure)
• Working knowledge of C or C++
• Experience with Kamailio
• Authentication and authorisation frameworks (OAuth2, Auth0)
• Databases such as MongoDB and MySQL
• CI/CD pipelines (e.g. GitHub Actions)
• Kubernetes, ArgoCD, or similar deployment tooling
• WebRTC experience

Whats on Offer

• Salary up to £65,000 depending on experience
• Hybrid working model
• 24 days annual leave plus bank holidays
• Pension and life assurance
• Private medical insurance
• Birthday day off and paid volunteering day
• Cycle to Work scheme
• Retail and lifestyle discount programmes

Interested?

If youre an experienced developer looking to work on technically challenging, real-time systems in a supportive and forward-thinking environment, wed love to hear from you. Apply now to learn more.

Software Engineer (MidSenior)

Python Full Stack

A fast-growing, technology-led consumer health & beauty scale-up is looking for a mid-level to senior Software Engineer to join its collaborative engineering team.

The business builds and operates multiple direct-to-consumer brands, supported by a highly bespoke ecommerce platform, internal tooling, and in-house manufacturing systems. Technology sits at the heart of the company, enabling personalised products that make a meaningful difference to customers lives.

This is a hybrid role, with regular collaboration time in a London-based office and flexibility to work remotely for part of the week.

The role

Youll join an agile, cross-functional tech team working across the full stack, partnering closely with Product, Design, and Operations to deliver scalable, high-impact software.

The role has a strong backend focus in Pytho n , with exposure to modern frontend technologies and the opportunity to influence architecture, tooling, and engineering best practices as the platform continues to scale.

This is a great opportunity for an engineer who enjoys ownership, autonomy, and seeing their work have real-world impact.

What youll be doing as a Software Engineer

Designing, building, and deploying new features across a multi-brand ecommerce platform

Writing high-quality, well-tested, maintainable code

Contributing to architectural decisions and engineering standards

Collaborating with Product and Design to translate requirements into robust solutions

Working end-to-end across backend, frontend, and infrastructure

Helping scale systems to support rapid business growth

What were looking for in aSoftware Engineer

Essential experience

Strong experience with Python and web frameworks such as Flask, Django, or similar

Experience working with relational databases (MySQL preferred) and ORMs (e.g. SQLAlchemy, Alembic)

Solid understanding of frontend fundamentals: HTML, CSS, JavaScript

Strong grasp of software engineering principles: Git/version control

Object-oriented programming

Testing (unit & integration)

Comfortable working in a fast-paced, evolving environment

Nice to have

Experience with TypeScript and React

Exposure to frontend design systems

Experience with Docker and cloud platforms (AWS preferred)

Knowledge of modern web architecture and performance optimisation

A proactive, pragmatic mindset someone who takes ownership and gets things done

Why apply to be a Software Engineer?

Join a mission-driven, high-growth tech business

Work on products used by millions of customers

Real influence over technical decisions and product direction

Strong focus on learning, development, and career progression

Competitive salary (£70k - £90k DOE)

Equity, and a comprehensive benefits package

Flexible hybrid working model with office based near Paddington

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Job Title:

Senior Full-Stack Software Engineer

Location:

Milton Keynes (office-based initially, hybrid after ~6 months)

Salary:

£70,000 £80,000 + Bonus + Benefits

Hours:

Full-time

About the Role

Bolt Technical are hiring exclusively for a growing SaaS business.

This is a key senior hire to take ownership of a legacy LAMP (Linux, Apache, MySQL, PHP) platform, modernising it pragmatically while supporting a small, fast-moving team. The role offers significant influence over technical direction and a clear long-term path to CTO as the business scales.

Key Responsibilities

Own and develop a LAMP-based full-stack platform

Audit, refactor, and improve legacy code without full rewrites

Introduce modern front-end frameworks (React, Vue, Angular)

Design and maintain APIs (REST / GraphQL)

Improve performance, security, and scalability

Contribute to DevOps, CI/CD, and cloud infrastructure

Mentor junior developers and support best practices

What Theyre Looking For

Senior full-stack experience in a LAMP environment

Strong PHP and MySQL skills

Experience with modern JavaScript frameworks

API design experience

Comfortable in a hands-on, pragmatic, small-team environment

Strong communication and problem-solving skills

Package & Benefits

£70,000 £80,000 salary DOE

Discretionary bonus

25 days holiday

Pension

Medical and dental cover

Hybrid working after onboarding period

By applying to this job advertisement, you confirm you have read and understood our Data Privacy Statement and give Bolt Technical authorisation to hold your provided data.

Thank you for your interest in this vacancy, which is being advertised by Bolt Technical, who are acting as an employment agency/business. Your application will be considered in competition with others and we will contact you within 5 working days.

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Redditch | Office-based
£40,000 | Permanent

Elliott Recruitment are working with a national, market-leading organisation to recruit an experienced MI Analyst to join their Redditch-based team.

This role is ideal for someone who enjoys producing meaningful management information that supports operational performance and senior decision-making. Youll work closely with key stakeholders, including the Operations Director, providing clear insight into KPIs, trends, and performance across the business.

If youre confident turning complex data into simple, actionable MI and enjoy seeing your work directly influence decisions this could be a great next step.

The role

As MI Analyst, youll be responsible for delivering accurate, timely, and insightful management information. Youll develop and maintain reporting packs and dashboards, monitor performance against KPIs, and provide analysis that helps the business understand whats happening, why its happening, and where improvements can be made.

What youll be doing

• Producing regular and ad-hoc MI reports to support operational and strategic decision-making
• Monitoring KPIs and identifying trends, risks, and opportunities
• Building and maintaining dashboards and performance reporting packs
• Extracting, cleansing, and validating data from Salesforce and other systems
• Working with stakeholders to define KPIs and reporting requirements
• Providing clear commentary and insight alongside MI outputs
• Managing multiple data sources, including complex or imperfect datasets

What were looking for

• Proven experience in an MI, reporting, or performance analysis role
• Strong numerical and analytical skills
• Advanced Excel capability (pivot tables, formulas, data manipulation)
• Knowledge of Power BI
• SQL / MySQL knowledge
• Experience working with multiple data sources
• Salesforce experience (beneficial, not essential)
• Strong communication skills, with the ability to explain MI clearly to non-technical audiences

Whats on offer

• Competitive salary of £40,000
• Permanent role within a stable, national organisation
• High visibility role with exposure to senior stakeholders
• Opportunity to influence performance through insight and reporting
• Collaborative, professional working environment

If youre an MI professional who enjoys making data meaningful and wants a role where insight genuinely drives action wed love to hear from you.

Apply online today immediate interviews available.

Role Overview:

A leader in their low-code technology domain, working with colleagues and customer stakeholders to develop and enhance their application framework, integrate with and utilise the latest technologies to ensure outcomes align with the needs of their Customers and Partners.

Key Responsibilities:

• Responsible for the development of application frameworks and features to deliver end-to-end technical solutions supporting customer projects
• Acts as a conduit between architecture, delivery, technical sales, and platform development teams
• Serves as the primary point of contact for technical issues related to overall solution implementation
• Acts as a mentor, developing the skills of less experienced colleagues and implementation resources within project teams, ensuring alignment with best-practice guidelines
• Provides input to the Development Team Lead and Product Owner to help coordinate technical and customer requirements, maintain a roadmap, and support cross-functional teams within the initiative

Qualifications:

• Knowledgeable of a range of business systems and processes across a number of domains, including the roles within an organisation for those responsible for implementing and maintaining them
• Able to manage a number of client relationships including the scoping and delivery of complex consultancy projects and services
• Demonstrable experience and understanding of a range of web development technologies, including Javascript, Python, REST/SOAP web services, HTML and CSS
• Proven use of data technologies including MySQL and SQL Server databases, database schemas, SQL syntax, ETL techniques and best practice, as well as an understanding of and solutions for issues arising with data integration across multiple systems
• Proven use of data, documentation and databases, web services and other means of accessing third-party systems for integration purposes across a number of solution domains

This is a full-time, permanent role, with flexible working arrangements, with 1-2 days per month working from the office in Bedford.

Our client offers a competitive salary, excellent benefits, and strong opportunities for career progression.

Apply online to be considered.

Our client, based in Tamworth, is seeking an experienced Network Systems Engineer with strong expertise in virtualisation and a proven track record across Microsoft technologies, including Windows Server, Active Directory, Azure, and Exchange Online/O365. The ideal candidate will also bring hands-on knowledge of Dell/EMC SANs, SonicWall, and network monitoring and configuration. This role involves managing the day-to-day administration, support, and troubleshooting of complex network environments, while also leading on software installations, upgrades, and issue resolution both remotely and on-site. A strong background in cloud-based solutions, virtualisation technologies, and collaboration with technical teams will be key to success in this position.

As a Network Systems Engineer, you will need to have/be:

• Extensive experience designing, implementing, and managing Microsoft Windows and Hyper-V environments, including Dell EMC SAN.
• MCSE and CCNA certified.
• Expert in IT security protocols, with a proven track record in deploying cybersecurity measures and maintaining robust network defence strategies.
• Strong understanding of IT security compliance, risk management, and adherence to global cybersecurity regulations.
• Proven project management experience, with the ability to lead technical initiatives.
• Hands-on experience with Active Directory, disaster recovery (DR), and business continuity planning (BCP).
• In-depth knowledge of network and data centre environments.
• Advanced PowerShell scripting and automation skills for repetitive tasks and small-to-medium complexity solutions.
• Exceptional customer service skills and ability to communicate technical concepts to non-technical audiences.
• Strong organizational, analytical, troubleshooting, and decision-making abilities.
• Self-motivated, able to work independently, manage time effectively, and adapt to competing work demands.
• Knowledge of GDPR and data protection requirements.
• Willingness to work flexible hours and travel as needed for installations or upgrades.

Desirable Skills and Experience:

• Additional security certifications.
• Database administration experience (MS SQL, MySQL).

Details:

• Salary: 35, 000 - 45, 000
• Working Hours: Full time Monday - Friday
• Location: Tamworth (on site full time)
• Duration: Permanent

Role of Network Systems Engineer:

• Configure, manage, and maintain Microsoft Windows domains and Hyper-V virtualisation environments.
• Develop and update Standard Operating Procedures for Windows virtualisation, Active Directory, and Windows Server administration.
• Diagnose and resolve complex issues across virtualisation environments, including Microsoft and Linux operating systems.
• Evaluate products and upgrades, overseeing and implementing system upgrade strategies.
• Maintain Dell server environments across multiple locations.
• Provide 3rd-level support to Helpdesk engineers, offering guidance and technical escalation.
• Lead the design, implementation, and maintenance of complex IT solutions, coordinating with technical teams as needed.
• Develop and analyse system standards, thresholds, and recommendations to optimise performance.
• Conduct capacity planning reviews and approve plans formulated by junior team members.
• Establish strategies to manage the deployment of support packages and system patches.
• Monitor server backups, network uptime, and provide recommendations for improvements.
• Liaise with 3rd-party vendors for support, procurement, and technical collaboration.
• Coordinate proposals and work estimates for system administration projects alongside business development teams.
• Design and enforce secure systems, network policies, and procedures, providing technical guidance to the team.

Benefits of working as a Network Systems Engineer:

• 23 days annual leave + bank holidays
• Option to purchase up to 5 extra days annual leave
• Health Cashback Plan
• Pension Scheme
• Life Assurance
• Free Parking