Senior Software Engineer Python Scala Java jobs in Leicester

SWARCO

SWARCO is looking for a Linux Software Development Engineer to join their team in Leicester. You will develop software for the UK's most widely deployed Traffic Light Controller, co-develop tools primarily in Python, and ensure compliance with local regulations. The role requires a relevant degree a

Eden Scott

🚀 Software Engineer (Java) – Fast‑Growth Fintech | Fully Remote (UK) 💰 £45,000–£50,000 + 4% Bonus + Excellent Benefits Software Engineer (Java) opportunity with a rapidly scaling fintech building next‑gen payment technology. You will be a talented Java Software Engineer who wants to make real impa

Aveni

Aveni is redefining how financial institutions use AI. We build real, production-ready agentic systems that reshape how banks, advisers and financial services firms operate, replacing fragmented processes with intelligent, end-to-end workflows. We have been recognised as Fintech of the Year for two

Relevance Lab

Senior Software Developer Location: Newcastle Upon Tyne, England, United Kingdom Hybrid, 2 days onsite 1 yr. contract The tech stack spans Node.js and React-style front ends with Spring Boot microservices, cloud deployment on AWS (and some Azure exposure) supported by Git-based CI/CD (GitLab and too

Python Software Engineer (Mid to Senior) – Backend Focus Remote (Ireland / Northern Ireland) | 1 day per month on site Company Overview A technology-driven digital business operating a large-scale consumer platform with significant daily user activity. This is a small IT function within a broader or

Owen Thomas | B Corp™

£110,000 - £110,000 /year

Senior Software Engineer (Golang/Python) | Drug discovery Platform | Fully Remote, EU /UK| Base Salary Up to £110,000, plus early equity+benefits I am currently partnering with an elite engineering team building a world-class platform for decentralised and federated computing. They are solving one o

Sanderson

Contract Java/Full Stack Developer £575/day Inside IR-35 Active SC Clearance mandatory Remote with occasional travel to London for client meetings only - expensable We are looking for experienced senior Fullstack Java Software Engineers to support projects across UK Government and Policing. You’ll w

Foster Growth

Lead Full Stack Software Engineer Location: Hertfordshire (Hybrid) Salary: £100,000 + bonus + benefits We’re partnering with a growing, engineering-led company building real-world monitoring and data systems used across critical infrastructure environments . This is a rare opportunity to step into a

Twelve

Senior Software Engineer (AI-First Development) United Kingdom, Remote The Opportunity Are you a Java expert curious about the future of engineering? Join a leading global Financial Technology firm that is redefining the software development lifecycle. While many companies are just talking about AI,

Saragossa

Own an internal Python library from day one. The experience expected from applicants, as well as additional skills and qualifications needed for this job are listed below. You will take ownership of the brand-new internal Python library and a production data validation system. You will write Python

Stanford Black Limited

Senior Java Engineer (VP) - FX Options Up to £160k on the base We are seeking a highly skilled FX Options Java Developer to join a front-office electronic trading team within a leading global financial institution. This role sits at the heart of the FX eTrading business, focusing on building and enh

Uniting Ambition

Senior Java Engineer – Customer Communications Platforms We’re hiring a Senior Java Engineer to build and run event-driven customer communications platforms at scale. You’ll design and own Java (Spring Boot) microservices that power real-time messaging, notifications, and customer interactions. This

Hunter Bond

Python Software Engineer – Data & Research Platforms Client: Boutique Quant Fund Location: London (Hybrid) Compensation: Up to £275,000 Base + Bonus Overview A boutique quant fund is seeking an experienced Python Software Engineer to join a growing engineering team focused on building large-scale da

Owen Thomas | B Corp™

Senior Software Engineer (Golang/Python) | Drug discovery Platform | Fully Remote, EU /UK| Base Salary Up to £110,000, plus early equity+benefits I am currently partnering with an elite engineering team building a world-class platform for decentralised and federated computing. They are solving one o

Stealth IT Consulting

This is an exciting opportunity to join a major global consulting and digital transformation organisation, recognised for delivering large-scale solutions across some of the UK's most influential sectors. Their teams partner with government departments, financial services institutions, energy compan

Stealth IT Consulting

Stealth IT have partnered up with a world leading digital transformation consultancy to hire a GenAI Full Stack Developer. You can get further details about the nature of this opening, and what is expected from applicants, by reading the below. We have a top end budget of £55k and the role will be m

Stealth iT Consulting

This is an exciting opportunity to join a major global consulting and digital transformation organisation, recognised for delivering large-scale solutions across some of the UK’s most influential sectors. Their teams partner with government departments, financial services institutions, energy compan

Stealth iT Consulting

From £55,000 /year

A prominent IT consultancy is actively searching for a talented Full Stack Engineer to join their team on a permanent basis. The ideal candidate will possess extensive experience in developing robust web applications using Java (Spring Boot), HTML, CSS, and JavaScript/TypeScript. This role offers an

Brio Digital

Java Developer Contract: 12 months Rate: £600 per day (Inside IR35) Location: UK (Remote, adhoc; Leeds, London or Manchester) Project Overview This role sits within a large-scale NHS digital transformation programme delivered via a leading consultancy partner. The programme focuses on modernisi

Sanderson

Contract Java/Full Stack Developer £530/day Inside IR-35 Happy to accept non cleared candidates and those with lapsed SC Remote with occasional travel to London for client meetings only - expensable We are looking for experienced senior Fullstack Java Software Engineers to support projects across UK