Senior Software Developer

Rise Technical Recruitment; England; Hybrid; GBP 55,000 - 65,000; Full time

Job summary

A leading technology recruitment firm is seeking a Senior Software Developer to join an award-winning team focusing on SIP and Python technologies. The role involves designing an SIP platform, creating integrations for AI services, and troubleshooting complex issues. Ideal candidates should have strong Python skills, OO Design experience, and knowledge of Docker and REST APIs. This position offers autonomy and opportunities for professional growth within a supportive team environment.

Benefits

Remote work option

Private Medical Insurance

Life Insurance

Other Benefits

Qualifications

• Extensive experience in Python, OO Design, and REST APIs.
• In-depth understanding of SIP stack and trace analysis.
• Experience with SQLAlchemy, Git, and Docker.

Responsibilities

• Design and develop the existing SIP platform and services.
• Connect systems to voice recognition and AI analysis.
• Ensure all code meets strict ISO/PCI-DSS standards.
• Provide resolutions for complex platform-level bugs.

Skills

Python

OO Design

REST APIs

SIP stack

Docker

SQLAlchemy

Git

Tools

Freeswitch

Kamailio

C/C++

Job description

Senior Software Developer (SIP/Python) – Guildford/Remote

55,000 – 65,000 + Remote + Private Medical Insurance + Life Insurance + Other Benefits

This is an excellent opportunity for a Software Engineer with a deep understanding of SIP, VoIP and Python to join a forward‑thinking development team where you can further your skills and grow with an award‑winning technology business.

This company is an established technology partner and managed service provider, specialising in unified communications and cloud contact centre solutions. It helps public and private sector organisations modernise their digital infrastructure with a focus on improving customer experience and operational efficiency through system integration and digital transformation.

In this varied role you will take a lead in the development of an existing SIP platform. Responsibilities will involve designing and building value‑add services, creating integrations for AI‑driven services (such as voice recognition and transcription), and ensuring software remains secure at every level. The role also serves as a key technical resource for troubleshooting complex SIP/RTP issues and contributing to the continuous improvement of secure development policies.

The ideal candidate will possess an in‑depth working knowledge of VOIP protocols and Python. Candidates should be comfortable working with Docker, Linux, and REST APIs, while maintaining a high standard of OO Design. Beyond technical ability, the ideal applicant will be a strong communicator capable of bridging the gap between technical requirements and non‑technical business objectives.

This is a fantastic opportunity for a Senior Software Engineer to join within a position that offers autonomy to solve complex problems and the support of a highly skilled team that values professional growth and innovation.

The Role

• Design and develop the existing SIP platform and services.
• Connect systems to voice recognition and AI analysis.
• Ensure all code meets strict ISO/PCI-DSS standards.
• Provide resolutions for complex platform‑level bugs.

The Person

• Extensive experience with Python, plus OO Design and REST APIs.
• In‑depth understanding of SIP stack and trace analysis.
• Experience with SQLAlchemy, Git, and Docker.
• Desirable to have knowledge of Freeswitch, Kamailio, or C/C++ is a plus.

Reference Number: BBBH (phone number removed)

To apply for this role or to be considered for further roles, please click "Apply Now" or contact Tom McLaughlin at Rise Technical Recruitment.

This vacancy is being advertised by Rise Technical Recruitment Ltd. The services of Rise Technical Recruitment Ltd are that of an Employment Agency.

Rise Technical Recruitment Ltd regrets to inform that our client can only accept applications from engineering candidates who have a valid legal permit or right to work in the United Kingdom. Potential candidates who do not have this right or permit, or are pending an application to obtain this right or permit should not apply as your details will not be processed.