> Markdown version of [/jobs/ext/2107933-application-developer-senior](https://www.wearedevelopers.com/jobs/ext/2107933-application-developer-senior). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Application Developer, Senior - **Company:** Compensationat Booz Allen - **Location:** Mold, UK - **Experience:** Expert - **Salary:** £86,800.0 - £198,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), Artificial Intelligence, Automation of Tests, JSON, PostgreSQL, MongoDB, Node.Js, Oracle (Applications), Redis, Microsoft SharePoint, Software Engineering, Apache Solr, SQL Databases, TypeScript, Extensible Markup Language (XML) - **Published:** August 19, 2026 - **Apply:** https://www.apply4u.co.uk/jobs/x/44529794/ ## About the Role polygraphBachelor's degree and 10+ years of experience with application or software development, or Master's degree and 8+ years of experience with application or software developmentNice If You Have:Experience with JSON, Java, JavaScript, SharePoint, XML, VBAs, Oracle, MongoDB, Solr, SQL, Open AI, or other AI technologiesClearance:Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information;TS/SCI clearance with polygraph is required.CompensationAt Booz Allen, we celebrate your contributions, provide you with opportunities and choices, and support your total well-being. Our offerings include health, life, disability, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, work-life programs, and dependent care. Our recognition awards program acknowledges employees for exceptional performance and superior demonstration of our values. Full-time and part-time ## Description Application Developer, SeniorThe Opportunity:At a certain point, experience-based system design can start to look like clairvoyance. When you've developed so many systems that you can not only orchestrate the best solution for any technology-based challenge, but you can also anticipate and preempt future issues, you're a solutions architect. You've evolved your skills into strategy through a long path of software development accomplishments and the curiosity to understand how all the pieces of an IT ecosystem fit together. Are you ready to use your combination of knowledge, skill, and experience to take on the toughest challenges in the intelligence sector?Join us. The world can't wait.You Have:Experience using Node.js with Typescript, SQL, PostgreSQL, Redis, and ElasticsearchExperience creating solutions to complex problems within a collaborative, cross-functional teamAbility to work with automated testing tools to perform testing and maintenance TS/SCI clearance with a ## Related Videos - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis) - [40 Minutes to Build a Serverless COVID-19 REST and GraphQL APIs](https://www.wearedevelopers.com/videos/208-40-minutes-to-build-a-serverless-covid-19-rest-and-graphql-apis) - [Hiring AI Native Talents](https://www.wearedevelopers.com/videos/100268-hiring-ai-native-talents) - [Introducing JSON Structure](https://www.wearedevelopers.com/videos/100219-introducing-json-structure) - [Can This Elephant Dance? IBM Bob and the Future of AI-First Software Development](https://www.wearedevelopers.com/videos/100256-can-this-elephant-dance-ibm-bob-and-the-future-of-ai-first-software-development) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Highest Paying Tech Companies in Europe](https://www.wearedevelopers.com/magazine/162-highest-paying-tech-companies-in-europe)