Senior Python Engineer London, England, United Kingdom

Location: This is a hybrid role based out of our London office in Monument.

Salary Range: £90,000 - £110,000 per annum

Role Type: Full-Time, Permanent

Start date: As soon as possible

The Senior Python Engineer Role

As a Senior Python Engineer at Send, you’ll play a crucial role in building and evolving the core of our SaaS platform. This is an exciting opportunity to work with modern technologies within a microservices architecture, developing new platform features, enhancing existing functionality, and ensuring the scalability and reliability of our backend systems. You’ll be part of a collaborative, agile team, contributing to key technical decisions and mentoring others along the way.

If you’re an experienced Python Engineer (ideally with some practical experience in AI frameworks and tools) and ready to take on your next challenge and thrive in a dynamic, fast-paced environment, we’d love to hear from you.

What You’ll Be Doing as a Senior Python Engineer

• Designing, developing, and maintaining backend services in Python.
• Building scalable and performant services using Pydantic, AWS Lambda, and other modern frameworks.
• Working with relational databases, particularly MySQL, to store and manage structured data.
• Collaborating closely with frontend engineers, product managers, and other stakeholders to deliver high-quality features.
• Writing and maintaining unit and integration tests using unittest, Pytest, and other testing frameworks.
• Providing technical leadership and mentoring to junior and mid-level engineers.
• Troubleshooting and debugging issues to ensure the stability and reliability of our platform.
• Improving CI/CD pipelines and supporting deployment automation.
• Contributing to architectural discussions and decisions to enhance the platform’s scalability and performance.

The Skills and Experience Needed for the Senior Python Engineer Role

• Strong experience in Python development, particularly in backend web applications.
• Proficiency with Pydantic, type annotation, and modern Python development methods.
• Experience working with relational databases (MySQL preferred).
• Knowledge of microservices architecture and best practices.
• Solid understanding of software development best practices, including unit testing and code quality.
• (Optionally) experience with AI frameworks (e.g. PydanticAI, crew, langchain, strands).
• A proactive, problem-solving mindset and a pragmatic approach to development.
• Strong collaboration and communication skills, especially in a remote-first environment.
• Ability to work independently while contributing to a team-oriented environment.

Bonus Points

• Experience with AWS and cloud-based infrastructure.
• Exposure to Apache Camel.
• Familiarity with Docker, Kubernetes, and DevOps tools.
• Prior experience in the insurance industry or with insurance-related software.

What’s on Offer - Life at Send

• Health Insurance - Provided through AXA, covering medical, dental, optical, mental health, and therapies. Employees also have free access to Spill, offering confidential mental health support and therapy.
• Life Insurance - Covers four times your basic salary, along with Income Protection for up to 36 months at 75% of salary, including rehabilitation support.
• Pension Scheme - A salary sacrifice pension scheme through Royal London. Send contributes 8%, with a minimum employee contribution of 4%.
• Time Off - 25 days of annual leave, plus public holidays. We also offer volunteering time and a dedicated wellness day.
• Enhanced Parental Leave - Includes 12 weeks of fully paid leave for all new parents, along with additional support for birth-giving parents.
• Learning and Development - An annual budget via Learnerbly, providing access to books, courses, conferences, and other resources to support your growth.

Recruitment Process

• Stage 1 - Introductory Call with our in-house recruiter, Liam (30 minutes): This will cover your background, motivations, and communication skills, along with an opportunity to learn more about Send and the role.
• Stage 2 - Interview with Greg Hall, Head of Engineering, and another member of our engineering team (30 minutes).
• Stage 3 - Technical Interview with two members of the engineering team (45 minutes - 1 hour): This will focus on technical questions related to Python, web application development, microservices, and relational databases.
• Stage 4 – Interview with Dan Pass, CTO (30 minutes)
• Final Stage - 30-minute Call with a Send Founder

Our Commitment to Diversity

At Send, we’re focused on strengthening our culture—not hiring people who simply “fit” into it. We believe that a diverse, equitable, and inclusive team drives innovation, creativity, better decision-making, and stronger performance. If you’re interested in a role at Send but don’t meet every requirement listed, we still encourage you to apply. We’re committed to changing that and ensure fair review of all applications.

We welcome applications from everyone, regardless of background, ethnicity, or culture. We are committed to reviewing all applications fairly and do not discriminate based on race, ethnicity, colour, religion or belief, national origin, sexual orientation, age, marital or civil partnership status, family status, pregnancy or maternity, disability (visible or invisible), gender identity or expression, or any other legally protected status.

If you have specific needs or adjustments that would support you during the application process, you can share them in the space provided in your application—we want to ensure your experience is as smooth and comfortable as possible.

Need support with your application or have a question about the role? Email us at