Mid Developer jobs in Croydon

Senior .NET Engineer | London (Hybrid/Onsite) | £80,000-£90,000 + Package & Bens We’re partnering with a forward-thinking organisation undergoing a major digital transformation, and they’re looking for a Senior Integration Engineer to play a key role in shaping scalable, high-performance systems

We have an exciting opportunity for a BI Developer to join our growing team in London. Working within the Data Architecture & Insights team, this role supports the delivery of business intelligence and analytics solutions aligned to the firm's global data strategy. The team designs, builds and m

Who We Are We are a rapidly growing start-up, backed by leading venture capitalists. We love information because it helps people make better decisions and drives innovation. The information economy is just getting started and our suite of information and data processing software products are startin

Are you a technical problem-solver who thrives on modernising legacy systems and building scalable data solutions? We are partnering with a leading organisation in the London insurance market to find a Data & Systems Developer to join their Data Management & Automation team. This is a unique

hackajob is collaborating with TradingHub to connect them with exceptional professionals for this role. Compensation: Competitive (Financial Services) About TradingHub Founded in 2010, TradingHub delivers uniquely intelligent trade surveillance software to world leading financial institutions. Devel

Senior Ruby Developer - Leading Health Tech - Hybrid Salary: Paying £75,000 - £100,000 + Equity Industry: Health Tech (Tech for Good) Location: Hybrid, 2 days a week in Central London Office Tech Stack: Ruby on Rails, TypeScript, AWS 👩🏻 💻 The Company 🚀 We're excited to have partnered with a lead

Sales & Business Developer Location: London / Remote Contract: Freelance / FTC / Full-Time Who We Are Chesamel Group is an agile consultancy headquartered in London, focused on driving extraordinary growth for forward-thinking businesses through innovative, bespoke solutions. The team challenges

Company Description MX Web Design - A Leading Wix UK-Based Partner. Role Description This is a full-time on-site role located in North London for a Wix Website Developer. The ideal candidate will be responsible for designing, building, and maintaining websites on the Wix and Wix Stufio platform. Dai

We're looking for talented Senior Developer Analyst to work with a new Fintech client of ours. If you'd like the opportunity to join our exciting team and think you have the skills to match, then please get in touch! Your primary focus will be helping our client with “Business As Usual” development,

Details of the role: Working pattern : This is a full-time, permanent hybrid position on Crick terms and conditions of employment. Salary: Circa £65,000 with benefits, subject to skills and experience. Application closing date: 10th of May 2026 at 23.59pm About u sThe Francis Crick Institute is Euro

Who We Are We are a rapidly growing start-up, backed by leading venture capitalists. We love information because it helps people make better decisions and drives innovation. The information economy is just getting started and our suite of information and data processing software products are startin

We’re seeking a Senior Microsoft .NET / C# Developer with 8+ years of hands-on experience building and supporting high-quality applications. This role requires a strong communicator who can work independently and collaborate with cross-functional teams. Key Requirements 8+ years experience in .NET (

Role: Python Backend Developer Skills: Python, Pydantic, PostgreSQL, Numpy, Pandas, Work-Model: 1-2 days a month office-visit Salary: up to £90,000 A Senior Python Backend Engineer is needed to join growing software house in London who specialise in helping businesses reduce wasteful processes, cost

Job Title: Microsoft Oracle Developer Company: Infosys Location : Basildon, UK (Onsite) Employment Type: Contract (6-12 months) Role Overview We are seeking a skilled Microsoft Oracle Developer to join our team in the UK. The ideal candidate will have strong experience working across Microsoft techn

First Derivative is driven by people, data, and technology, unlocking the value of insight, hindsight, and foresight to drive organizations forward. Counting many of the world's leading investment banks as clients, we help our clients navigate the data-driven, digital revolution that is transforming

We are seeking a Full Stack Developer to join our Cross Markets team. In this role, you will ensure the development and delivery of high-quality software solutions using programming languages, frameworks and tools while collaborating with peers. To Be Successful As Full Stack Developer, You Should E

Role Summary: We are looking for hands‑on, experienced Power BI Developers with strong end‑to‑end production reporting experience . The role requires deep expertise in Power Query (M), DAX, data modelling, and report UX/design , along with a solid understanding of Microsoft Fabric and its integratio

Fiserv

Calling all innovators – find your future at Fiserv. We’re Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants, and consumers to one another millions of times a day – quickly, rel

Role: Off Host Automation Techniques developer Experience: 5years Location: Basildon Work mode: Onsite Role Summary We are seeking an experienced Off Host Automation Techniques Developer with 5+ years of experience in building external automation solutions for legacy, mainframe, and enterprise syste

About XYZ Reality XYZ Reality are the creators of the world's first and only engineering-grade Augmented Reality solution, purpose built for the construction industry. Not only have we created this holographic technology, that sits within The Atom – a smart, site-safe headset/hardhat - but we implem