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Showing results 1 through 10 of 12

Freelance On Site

Harrington Starr

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Network Engineer – City of London – 12 months’ FTC – Cisco, Arista, Ansible, OSPF, BGP, Python A market-leading Hedge Fund based in the City of London is looking for a talented Network Engineer to join their established team on a 12 months’ FTC. In this role, you will have responsibility for my cli...

London, United kingdom

16-03-2026

Full Time Hybrid

Harrington Starr

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DevOps Engineer / Cloud Engineer – City of London – Hybrid – Linux, AWS, CI/CD, Terraform, Python - £100,000 - £115,000 A leading financial services firm based in the City of London is looking to build out their existing Engineering Team by hiring a talented DevOps Engineer / Cloud Engineer. My cli...

London, United kingdom

£115,000 /year

11-03-2026

Full Time Hybrid

Harrington Starr

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HIRING: Cloud & DevOps Engineer – London (Hybrid) A leading European financial markets technology firm is looking for a Cloud & DevOps Engineer to join its growing engineering team in London. You’ll work within a small, highly skilled DevOps team responsible for building and scaling hybrid cloud a...

London, United kingdom

£115,000 /year

11-03-2026

Senior Freelance Hybrid

Harrington Starr

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£1000–£1400 per day | Central London (3 days per week) | Inside IR35 Senior ETRM Developer – Endur (JVS / OpenComponents) You'll be joining one of the most technically forward-thinking ETRM teams in the industry – driving design and delivery of a highly integrated Endur platform across front-to-b...

London, United kingdom

£1,400 /day

09-03-2026

Freelance Hybrid

Harrington Starr

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NET Developer (Contract) Location: Central London Rate: £350–£425 per day Duration: 6 months (likely extension) Start: ASAP Role Overview We are seeking an experienced .NET Developer to join our Business Intelligence IT team. You will develop and support SMBC BI business applications using C# ...

London, United kingdom

£425 /day

09-03-2026

Senior Freelance Hybrid

Harrington Starr

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Senior Front Office Software Engineer – Real‑Time Trading Systems Contract – Inside IR35 £700 - £1100 per day London – Hybrid (3 days in office) The Short Version. You must be a senior software engineer with experience in trading environments. You need to be a well-rounded engineer in Python, ...

London, United kingdom

£1,100 /day

05-03-2026

Freelance On Site

Harrington Starr

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QA Tester – Fintech Startup (Contract) London office with Hybrid working 3 Months initial contract PAying £150–£200 per day (London) Fast-growing fintech startup looking for a hands-on QA Tester with a strong payments background. You’ll work directly with the CTO, testing across Java/Spring Boo...

London, United kingdom

£200 /day

02-03-2026

Freelance On Site

Harrington Starr

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QA Tester (Fintech / Payments) – Contract London - Remote / Hybrid ⏳ 3 Months Initial £175–£200 per day (London) OUTSIDE IR35 I’m looking for a hands-on QA Tester with a payments / fintech background to join on an initial 3-month contract, working directly with the CTO and external consultants...

London, United kingdom

£200 /day

02-03-2026

Fresher Full Time Remote

Harrington Starr

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Software Engineer - Java Fully remote based in the UK. The company This is an opportunity for a Software Engineer to join an award winning Fintech as their continue their next phase of growth. They create industry changing solutions, operate in close to 50 global markets and are known as a market...

United kingdom

£55,000 /year

18-02-2026

Mid-level Freelance Hybrid

Harrington Starr

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C++ Software Engineer (Contract) – £300–£400/day – Outside IR35 You'll be working for a Fintech company as an experienced C++ Software Engineer. Joining the development team on a 9‑month contract (OUTSIDE IR35). This role focuses entirely on modern C++ engineering within a high‑performance Linux e...

London, United kingdom

£400 /day

11-02-2026