Senior Software Engineer Job Vacancies

551 to 575 of 926 Senior Software Engineer Jobs

Senior Software Engineer

Coventry, Warwickshire, United Kingdom
Moneycorp Bank Limited
Azure deployment. This is a technical migration, not a major functionality rewrite-our goal is to transition to a more scalable, cloud-native architecture while maintaining stability. As a Senior Software Engineer, you'll be working with .NET, Azure, and Kafka, ensuring that applications are optimised for cloud deployment and aligned with modern development practices. You'll More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer

United Kingdom
ZEREN
and loss prevention. Following significant international growth, the company is expanding its engineering capability into the United Kingdom to support European operations and upcoming global deployments. The Role The Senior Software Engineer will play a key part in the next stage of the platform evolution. The position focuses on re-engineering and migrating existing cloud services from … teams to provide technical support across Europe, acting as a regional engineering point of contact and ensuring high-quality delivery to enterprise customers. This position suits a technically strong engineer who enjoys solving complex real-world problems, working autonomously, and contributing to a growing international team. Key Responsibilities Lead the design, re-engineering, and deployment of Python-based microservices More ❯
Posted:

Senior Software Engineer

City of London, London, United Kingdom
Heart Mind Talent
now entering an exciting scale-up phase. This is a unique opportunity to join and directly shape a pioneering consumer product. Role Overview We are looking for an outstanding Senior Software Engineer to join our fast-moving journey. You’ll be a key contributor across the stack in our Rust-based environment, building intuitive experiences and scalable … code reviews, mentor engineers, and support hiring as we grow Take ownership from concept to delivery, including infrastructure (deployments, observability, CI/CD) Must-Have Qualifications 5+ years in software engineering (flexible if skills and impact are strong) Strong foundations in typed languages (e.g., C++, Scala, Rust, Java, C#, Swift) Strong understanding of core programming concepts, including variable assignments More ❯
Posted:

Senior Software Engineer

London Area, United Kingdom
Heart Mind Talent
now entering an exciting scale-up phase. This is a unique opportunity to join and directly shape a pioneering consumer product. Role Overview We are looking for an outstanding Senior Software Engineer to join our fast-moving journey. You’ll be a key contributor across the stack in our Rust-based environment, building intuitive experiences and scalable … code reviews, mentor engineers, and support hiring as we grow Take ownership from concept to delivery, including infrastructure (deployments, observability, CI/CD) Must-Have Qualifications 5+ years in software engineering (flexible if skills and impact are strong) Strong foundations in typed languages (e.g., C++, Scala, Rust, Java, C#, Swift) Strong understanding of core programming concepts, including variable assignments More ❯
Posted:

Senior Software Engineer

slough, south east england, united kingdom
Heart Mind Talent
now entering an exciting scale-up phase. This is a unique opportunity to join and directly shape a pioneering consumer product. Role Overview We are looking for an outstanding Senior Software Engineer to join our fast-moving journey. You’ll be a key contributor across the stack in our Rust-based environment, building intuitive experiences and scalable … code reviews, mentor engineers, and support hiring as we grow Take ownership from concept to delivery, including infrastructure (deployments, observability, CI/CD) Must-Have Qualifications 5+ years in software engineering (flexible if skills and impact are strong) Strong foundations in typed languages (e.g., C++, Scala, Rust, Java, C#, Swift) Strong understanding of core programming concepts, including variable assignments More ❯
Posted:

Senior Software Engineer

london, south east england, united kingdom
Heart Mind Talent
now entering an exciting scale-up phase. This is a unique opportunity to join and directly shape a pioneering consumer product. Role Overview We are looking for an outstanding Senior Software Engineer to join our fast-moving journey. You’ll be a key contributor across the stack in our Rust-based environment, building intuitive experiences and scalable … code reviews, mentor engineers, and support hiring as we grow Take ownership from concept to delivery, including infrastructure (deployments, observability, CI/CD) Must-Have Qualifications 5+ years in software engineering (flexible if skills and impact are strong) Strong foundations in typed languages (e.g., C++, Scala, Rust, Java, C#, Swift) Strong understanding of core programming concepts, including variable assignments More ❯
Posted:

Senior Software Engineer

london (city of london), south east england, united kingdom
Heart Mind Talent
now entering an exciting scale-up phase. This is a unique opportunity to join and directly shape a pioneering consumer product. Role Overview We are looking for an outstanding Senior Software Engineer to join our fast-moving journey. You’ll be a key contributor across the stack in our Rust-based environment, building intuitive experiences and scalable … code reviews, mentor engineers, and support hiring as we grow Take ownership from concept to delivery, including infrastructure (deployments, observability, CI/CD) Must-Have Qualifications 5+ years in software engineering (flexible if skills and impact are strong) Strong foundations in typed languages (e.g., C++, Scala, Rust, Java, C#, Swift) Strong understanding of core programming concepts, including variable assignments More ❯
Posted:

Senior Software Engineer (Data)

England, United Kingdom
Hybrid / WFH Options
Lendable
the status quo Build the best technology in-house , using new data sources, machine learning and AI to make machines do the heavy lifting About the Role As a Senior Software Engineer (Data), you'll help shape and scale our data infrastructure, making analytics faster, more reliable, and cost-efficient. You'll work with AWS, Snowflake, Python … as code to manage cloud resources efficiently. Assist in the troubleshooting and resolution of production issues to minimise downtime and improve user satisfaction. What we're looking for Strong software development, particularly in Python or a similar language. Solid engineering practices, including automated testing, deployment systems, and configuration as code. Experience with building data intensive applications and containerised services More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer

London, United Kingdom
Elsevier
a very stable product that we've worked to get to and strive to maintain. Our team values trust, respect, collaboration, agility, and quality. About the Role: As a Senior Software Engineer you are expected to participate in technical discussions to come up with a design to meet Product Requirements, develop test driven code, pair with team … detailed specifications for the development of complex system components. • Complete complex bug fixes. • Work closely with other development team members to understand complex product requirements and translate them into software designs. • Successfully implement development processes, coding best practices, and code reviews. • Operate in various development environments (Agile, Waterfall, etc.) while collaborating with key stakeholders. • Train entry-level software More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

REMOTE Senior Software Engineer - FinTech Scale up

London, United Kingdom
Hybrid / WFH Options
McGregor Recruitment
crypto-native firms, they process trillions of market events daily to protect investors, detect manipulation, and ensure integrity across both traditional finance and digital asset markets . As a Senior Software Engineer , you'll play a key role in designing and scaling advanced systems and algorithms that safeguard some of the most dynamic and complex markets in … architecture for low-latency monitoring and high-throughput processing . Continuously improve data quality, reliability, and query optimisation at scale. What we're looking for 5+ years' experience in software engineering , ideally in financial markets, market surveillance, or large-scale data systems . Strong skills in Java (or similar: Kotlin, C#, C++) ; Python is a plus. Proven experience with More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

REMOTE Senior Software Engineer - FinTech Scale up

London, South East, England, United Kingdom
Hybrid / WFH Options
McGregor Boyall
crypto-native firms, they process trillions of market events daily to protect investors, detect manipulation, and ensure integrity across both traditional finance and digital asset markets . As a Senior Software Engineer , you'll play a key role in designing and scaling advanced systems and algorithms that safeguard some of the most dynamic and complex markets in … architecture for low-latency monitoring and high-throughput processing . Continuously improve data quality, reliability, and query optimisation at scale. What we're looking for 5+ years' experience in software engineering , ideally in financial markets, market surveillance, or large-scale data systems . Strong skills in Java (or similar: Kotlin, C#, C++) ; Python is a plus. Proven experience with More ❯
Employment Type: Full-Time
Salary: £110,000 - £120,000 per annum
Posted:

Senior Software Engineer

London, United Kingdom
Hybrid / WFH Options
Cegal Group AS
receive an alert: Select how often (in days) to receive an alert: Help shape the next generation of data solutions for the global energy industry! We're hiring a Senior Software Engineer for an in-house role in ours product division! Join a collaborative and forward-thinking team working on CDM - a strategically important initiative with strong … best practices.Communicating clearly with team members and stakeholders. Contributing to architectural decisions and helping shape the future of CDM. Who we're looking for We're seeking an early senior developer (6-8 years of experience) who thrives in a collaborative environment and enjoys solving complex technical challenges. If you're passionate about building scalable systems and want to More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer (FPGA / Ghidra) () with Security Clearance

Annapolis Junction, Maryland, United States
Acclaim Technical Services
as a significant strength, and it shows: ATS is consistently ranked as a top workplace among DC area firms and continues to grow. We are actively recruiting for a Software Engineer tosupport our Engineering Services and Solutions Division, based in Annapolis Junction, MD. Ideal candidate will have experience as a software engineer, analyzing complex systems. Must More ❯
Employment Type: Permanent
Salary: USD 250,000 Annual
Posted:

Senior Software Engineer with Security Clearance

Annapolis Junction, Maryland, United States
ClearEdge IT Solutions LLC
access to a state-of-the-art technology lab. We also offer monthly TechConnect and DeepDive collaboration sessions with our entire technical staff. Your Mission ClearEdge is hiring a Senior Software Engineer to support the development, deployment, and sustainment of a large-scale data processing and ETL system in a Linux-based environment. This position requires strong More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Software Engineer

South West, United Kingdom
Hybrid / WFH Options
Sanderson Recruitment
going through a period of impressive growth across their technology team, creating opportunity to work on challenging projects and contribute to the development of its digital platforms. As a Senior Software Engineer, you will play a pivotal role in the development, maintenance, and evolution of key digital platforms, working across the full technology stack to deliver secure More ❯
Employment Type: Permanent
Salary: £65,000
Posted:

Senior Software Engineer (AI)

England, United Kingdom
Focaldata Ltd
reimagine what is possible in research. We do impactful work with amazing organisations ranging from well-known brands to life-changing non-profits. What you'll do As a Senior Software Engineer working on our agentic AI product, you will: Deliver High-Standard Code : Develop clean, efficient, and maintainable code that meets the highest standards and prioritises … Challenges : Break down complex, high-level product requirements into smaller, manageable technical deliverables. You will manage the breakdown of epics into tasks to ensure clear progress and communication. Provide Senior-Level Insight & Pragmatism : Bring your experience and seniority to the table by making well-considered decisions that balance trade-offs. Ensure that decisions, whether technical or architectural, are clearly … a small startup engineering team and while we really need expertise in AI, there will also be a need for you to contribute to a wide range of different software engineering work. Who you are (skills and experience) 5+ years of coding experience (3+ years with Python building applications as opposed to purely scripting) Strong experience working with LLMs More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer - London

England, United Kingdom
Traveltechessentialist
as we adjust to the new normal-and that's where you come in! If you're ready to take off with us, keep reading! Role Are you a Senior Software Engineer with extensive programming experience? We're not looking for stack experts. We're looking for smart people who can bring in the best tools and More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Engineer (Pensions, ISAs & Investments)

Bristol, Somerset, United Kingdom
Hargreaves Lansdown
Salary: Up to £80,000 dependent on experience HL are looking for a talented full stack Senior Software Engineer to join our Pensions, ISAs & Investments product development team in building market leading solutions for our clients. This is an opportunity to join the UK's number one investment services company, looking after over £149 click apply for More ❯
Employment Type: Permanent
Salary: GBP 80,000 Annual
Posted:

Senior Software Engineer (Pensions, ISAs & Investments)

Bristol, UK
Hargreaves Lansdown
Salary: Up to £80,000 dependent on experience HL are looking for a talented full stack Senior Software Engineer to join our Pensions, ISAs & Investments product development team in building market leading solutions for our clients. This is an opportunity to join the UK's number one investment services company, looking after over £149.7bn billion in assets More ❯
Posted:

Senior Software Engineer

England, United Kingdom
TradingHub
are a finance-focused big data firm. Our goal is to continue creating the world's leading financial markets analytics platform. The Role You will be working as a Senior Software engineer in the GUI team which is responsible for the underlying web frameworks which power our MAST and CaaS products and internal tools. Our goal is More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Agile Software Engineer (Experienced/Senior) with Security Clearance

Herndon, Virginia, United States
Boeing
environment for every teammate that's welcoming, respectful and inclusive, with great opportunity for professional growth. Find your future with us. The Boeing Company is currently seeking an Agile Software Engineer (Experienced or Senior) to support User Interface (UI) development for our Advanced Ground Architecture team located in Herndon, Virginia, Mesa, Arizona or Seal Beach, California. This … position will focus on supporting the Boeing Defense, Space & Security (BDS) Software Engineering organization. Our teams are currently hiring for a broad range of experience levels including; Experienced and Senior Level Software Engineers. At The Boeing Company, we innovate and collaborate to make the world a better place. From the seabed to outer space, you can contribute … fostering an environment for every teammate that's welcoming, engaging, respectful and inclusive, with great opportunity for professional growth. Find your future with us. The ideal candidates will provide software engineering functions for the design, development, and maintenance of complex, multi-tiered application software systems used to support the command and control of space vehicles. The software More ❯
Employment Type: Permanent
Salary: USD 155,250 Annual
Posted:

Senior Full Stack Software Engineer - Clearance Required with Security Clearance

Annapolis Junction, Maryland, United States
Hybrid / WFH Options
Lockheed Martin
If you know somebody who may be a fit, click here to submit a referral. If your referral is hired, you'll receive a payment! code-extrefer Full Stack Software Engineer - Clearance Required WHAT WE'RE DOING • Join Lockheed Martin Rotary and Mission Systems, Cyber & Intelligence, where we foster innovation and integrity. • As a Senior Full Stack … Software Engineer, you'll be empowered to create "new realities" and pioneer solutions that break boundaries. • Benefit from the support of a global technology leader that values innovative thinking and provides the resources to turn ideas into reality. • Build on our proud legacy of achievement and contribute to shaping the future of aerospace, defense, and security solutions. THE … WORK TKO provides systems engineering, software development, data science and cloud development and engineering services to the Cyber Infrastructure Solutions customer. The services enable the Data Transformation, Malware Analysis, and Cyber Threat Intelligence processing and sharing capabilities for the customer, fulfilling mission objectives and offering actionable information to detect and mitigate cyber threats. The contract has several locations in More ❯
Employment Type: Permanent
Salary: USD 289,800 Annual
Posted:

Senior Software Engineer with Security Clearance

Dayton, Ohio, United States
Peerless Technologies Corporation
Peerless is seeking a highly skilled Mid to Senior Level Software Engineer who can hit the ground running. The ideal candidate will be a go-to person within the team, possessing strong technical expertise and the ability to set up their own development environment independently. While not the primary software lead, this individual will be a … key resource for the team due to their deep knowledge and experience Architect, develop, and maintain high-performance, scalable software solutions. Key Responsibilities Design, develop, and maintain scalable software solutions across desktop and web platforms (Palette, MAX, Events, Rasters, Environmentals). Address JIRA tickets, implement enhancements, and ensure no functionality degradation. Sustain and transition algorithms (Palette, GEOCOMPASS) within … the OPIR Platform. Support new capability development, documentation updates, and software release cycles. Follow ICD 503 security and PCIDS configuration standards; perform testing (Sprint, FAT, V&V, UAT). Present designs at review boards and provide user training and support as needed. Requirements Bachelor's in Computer Science, Engineering, or related field. 5+ years of professional software development More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Software Engineer Sr with Security Clearance

Herndon, Virginia, United States
Hybrid / WFH Options
Lockheed Martin
solving problems that others think are impossible? If you answered yes to these questions, then we would like you to join Lockheed Martin's Space Engineering &Technology, S2CO, Global Software Solutions Team! Space E&T develops, delivers, and operates affordable engineering and sustainment solutions for commercial, military and intelligence users across the globe. These mission critical efforts include development … collection orchestration and tasking, processing, data analysis and analytics along with premier operations and sustainment capabilities of space- based programs in support of national security. We are seeking a Software Engineer to participate in the design, development, test and maintenance of complex mission application software and database applications for the Paragon organization which supports multiple programs. Looking … for someone who is (or is willing to become) a Domain/Subject Matter Expert in the Mission Management and/or Command and Control domains. As a Software Engineer with Paragon, you will: • Apply knowledge of computer hardware and software, information processing techniques, and information gathered from subject matter experts and system users to develop software More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Sr. Software Engineer with Security Clearance

Arlington, Virginia, United States
Leidos
R- Description Leidos is seeking a Senior Software Engineer to support the maritime autonomy team. In this position you will work in a diverse environment that allows you to get into every aspect of software development, and deployment across the software development lifecycle. You will be joining an existing team which has already successfully delivered … as well as other technology stakeholders to maintain, develop and support several projects in an Agile SAFe environment. You will be responsible for design, development, testing, and automation of software solutions. Primary Responsibilities Analyze, design, code and update software for new features and performance improvements. Implement, and testing C++ software for Linux systems. Experience with interface communication … standards/protocols such as TCP/IP, UDP, and DDS. Collaborate with all teams to support software deployments and integrations. Documenting the developed systems. Basic Qualifications US Citizen with the ability to obtain a SECRET clearance. Bachelor's degree with 12 or more years of prior relevant work experience or Masters with 10 or more years of prior More ❯
Employment Type: Permanent
Salary: USD 227,950 Annual
Posted:
Senior Software Engineer
10th Percentile
£60,000
25th Percentile
£65,000
Median
£90,000
75th Percentile
£115,000
90th Percentile
£135,000