Senior Python Developer Coverletter Hamish Osei Senior Python Developer 07700 90XXXX hamish.osei@example.com https://linkedin.com/example/hamishosei Cardiff, CF10 1AA Contact Address Cardiff, CF10 1AA Phone 07700 90XXXX Email hamish.osei@example.com LinkedIn https://linkedin.com/example/hamishosei Website hamishosei-example.com 19 October 2026 Hiring Manager Alderwick Software Ltd 1 Royal Crescent Bath, Somerset BA1 2LR Dear Hiring Manager, I am writing to apply for the Senior Python Developer contract with Alderwick Software Ltd. The role’s focus on client reporting, operational reporting and API improvements is a close match for the work I deliver now at Cobalt Quay Technologies. I am keen to bring that hands-on experience to your engineering team and contribute across the six-month engagement. In my current role, I reworked MySQL query design and relational data models for reporting workloads, using SQLAlchemy ’s ORM and toolkit features to support complex query patterns and more reliable data access. I also built Pandas transformations for multi-source compliance and operational reports , adding validation checks that helped analysts trace exceptions before publication. This is directly relevant to the data and reporting work described for your team. I have designed and extended FastAPI services across several roles. At Cobalt Quay, I planned a staged API migration , documented compatibility requirements and added automated tests to protect existing client integrations. I have also enhanced client-facing PDF reports with PyMuPDF, and use Git and Jira to support reviewable changes and clear delivery tracking. Alderwick’s combination of reporting, API modernisation and close engineering collaboration is exactly the kind of work I want to continue doing. I currently coordinate implementation with a mid-level developer and support colleagues through design discussions and code reviews. With ten years of Python development experience across financial services and business software, I can contribute practical technical judgement from the outset. Thank you for considering my application. I would welcome the opportunity to discuss how my experience can support Alderwick’s reporting and API work. Yours faithfully, Click to edit Draw your signature below Clear Generate Signature Save X Hamish Osei
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