Krystal Ryan
Cheltenham,Gloucestershire
Summary
Security‑cleared Technical Lead and Senior Software Engineer with extensive experience in Go, Rust, Java and React. Experienced in leading teams of 7–10 delivering mission‑critical applications with Docker/Kubernetes and GitLab CI/CD. Responsible for stakeholder communication, scope, and resourcing; managing timesheets, forecasting, and invoicing. Krystal thrives in challenging environments and is looking to join and strengthen an organisation that values professional growth for its people and continuous skills development.
Overview
6
6
years of professional experience
Work history
Senior Developer, Team Lead and Line Manager
Infoserv Systems Ltd
Cheltenham, Gloucestershire
2024.01 - Current
- Senior developer: 2 years experience building and delivering mission‑critical applications, utilising Go and Rust, in high pressure environments where requirements change frequently and production bugs need to be resolved immediately to ensure service continuity.
- Team Lead: Manages 7 highly skilled developers; driving stakeholder engagement and expectation management; planning resource allocation, tracking timesheets, managing forecasting and producing invoices.
- Line Manager: Conducts yearly reviews and probation meetings; allocates training; supports career development and satisfaction.
- Project Management: Led Infoserv’s successful involvement in two security‑cleared EXPOs using RACI, detailed schedules, project briefs, and Jira boards.
Technical Lead
BAE Systems
Gloucester, Gloucestershire
2022.03 - 2024.01
- Led agile project end-to-end, with 10 developers of varying abilities, running Scrum ceremonies, iterative releases, and user testing to ensure applications met user requirements.
- Owned architecture and roadmap for transition of two foundational applications, written in Java and React, from monolithic applications to microservices
- Worked closely with PO and users for value‑driven prioritisation
- Mentored engineers; raised code quality via reviews, pairing, and knowledge‑sharing.
Junior Software Developer
BAE Systems
Gloucester, Gloucestershire
2019.09 - 2022.03
- Delivered end‑to‑end features in Java and React, acting as SME for key functionality.
- Created clear and meaningful documentation, ensuring application functionality was fully understood by users, reducing support requirements.
- Improved test coverage and reliability; supported Agile ceremonies and continuous delivery.
Education
Bachelor of Science - Physics with Accounting
Keele University
Stoke-on-TrentSkills
- Rust
- Go
- Java
- Springboot
- React
- Python
- Docker
- Kubernetes
- GitLab and Jenkins
- AWS
- Linux
- Git
- Stakeholder engagement
- Resource allocation planning
- Budget management
- Effective communication style
- Agile project management
Affiliations
- Touch Rugby, Endurance sports such as cycling and running
Timeline
Senior Developer, Team Lead and Line Manager
Infoserv Systems Ltd
2024.01 - Current
Technical Lead
BAE Systems
2022.03 - 2024.01
Junior Software Developer
BAE Systems
2019.09 - 2022.03
Bachelor of Science - Physics with Accounting
Keele University