Senior Software Engineer -ENGLISH AND FRENCH SPEAKING
Contract to Perm Opportunity
As a Senior Software Engineer on the global checkout team, you will take full ownership of critical application components that process millions of transactions in high‑pressure, high‑stakes TDD-driven environments. These systems are the revenue backbone of the business. This is not a greenfield project. You will own, maintain, and evolve established production systems with years of battle-tested code. You'll be responsible for making decisive technical decisions on legacy architecture while simultaneously driving modernization efforts.
If you thrive on understanding complex existing systems, taking ownership of technical debt, and delivering measurable business value, this role is for you.
Essential Skills
1. 7+ years of backend development experience with production systems.
2. 5+ years working in Agile environments, taking ownership of features and components.
3. 3+ years of DevOps experience—you own your code in production.
4. Expert-level development skills with established codebases.
5. Strong experience with Spring Boot and modern frameworks.
6. Deep understanding of Design Patterns and SOLID principles applied to real-world systems.
7. Proven experience working with legacy codebases—refactoring, modernizing, extracting business value.
8. experience with SOA/microservices architectures in production environments.
9. Hands-on experience with AWS cloud infrastructure.
10. Working knowledge of relational databases (Oracle, MySQL).
11. Strong communication skills for remote collaboration across teams and time zones.
12. experience working in high-pressure test‑driven development (TDD) environments is highly valued
Additional Skills & Qualifications
13. experience with serverless AWS services (Lambda, Step Functions, DynamoDB) is a strong plus.
14. Bilingual: French and English. (Strongly required for cross‑regional collaboration.)
Location
London, UK
Rate/Salary
- GBP Daily
Trading as TEKsystems. Allegis Group Limited, Maxis 2, Western Road, Bracknell, RG12 1RT, United Kingdom. No. 2876353. Allegis Group Limited operates as an Employment Business and Employment Agency as set out in the Conduct of Employment Agencies and Employment Businesses Regulations 2003. TEKsystems is a company within the Allegis Group network of companies (collectively referred to as "Allegis Group"). Aerotek, Aston Carter, EASi, Talentis Solutions, TEKsystems, Stamford Consultants and The Stamford Group are Allegis Group brands.