Contract Senior Software Engineer / Lead Developer
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Contract Software Engineer / Lead Developer - Expert
We're looking for an exceptional Software Engineer / Back-End Developer - a true "super dev” - with proven Design Patterns expertise and a deep understanding of software engineering/development. This is a high-level contract role, suitable for someone operating at a Principal Engineer or Lead Engineer level. You'll join a small, highly skilled team building a new platform driven by innovative algorithms, clever data structures, and design patterns-based architecture. Working closely with the Head of Architecture, you'll take abstract concepts and requirements, distil them, and deliver high-quality, elegant solutions. This is a role for someone who thrives on independence, can work from a high-level brief, and produces results quickly and to the highest standards.
Location: Hybrid - Remote work available. Must be UK-based.
Rate: circa £680 per day (inside IR35)
Duration: 6 months initially
Start: ASAP November 2025
Key Responsibilities
* Lead the back‑end development of a new platform.
* Apply advanced software engineering / development and design patterns.
* Translate abstract concepts into working, production‑ready solutions.
* Employ Test‑Driven Development (TDD) and SOLID principles.
* Build robust, scalable algorithms and efficient data structures.
* Collaborate with other engineers, mentoring and sharing knowledge.
* Produce maintainable, clean code based on the "less is more” principle.
Essential Skills & Experience
* Expert in TypeScript or a similar software development language, with strong back‑end development experience.
* Extensive experience in applying well‑known software design patterns.
* Proven ability to work independently with minimal guidance.
* Advanced algorithmic approach and abstract problem‑solving capabilities.
* Solid understanding of TDD and SOLID principles.
* Minimum 5 years' experience in software development / engineering.
* Excellent technical communication skills.
* Able to take a concept from discussion to high‑quality code delivery.
Desirable
* Degree in Computer Science, Software Engineering, or related discipline highly desirable.
* Experience in high‑performance or complex systems.
* Familiarity with algorithmic analysis and performance optimisation.
Work Arrangements
* Remote or Hybrid - you must be UK based.
* Inside IR35 contract.
If you are a high‑calibre developer with the skills above and the ability to deliver complex back‑end solutions at speed, we'd love to hear from you. Services advertised are those of an Employment Business.
Seniority level
Mid‑Senior level
Employment type
Contract
Job function
Other
Industries
IT Services and IT Consulting
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Sheffield, England, United Kingdom
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