Senior Software Engineer Job Vacancies

151 to 175 of 901 Senior Software Engineer Jobs

Senior Software Engineer

Banbury, Oxfordshire, United Kingdom
Oscar Associates (UK) Limited
Senior Software Engineer We're currently working with a growing SaaS company based in Banbury that are looking for a Senior Software Engineer skilled with C# ASP.NET, Angular, and SQL. This role will naturally grow in to a Lead Engineer position as the team grows. You will be working to develop and build More ❯
Employment Type: Permanent
Salary: GBP 65,000 Annual
Posted:

Senior Software Engineer – IOS

london, south east england, united kingdom
Hybrid / WFH Options
News UK
Senior Software Engineer – IOS Location: London Department Please Select Salary Range: Not Specified Advertising End Date: 28 Oct 2025 **Job Description** Role: Senior Software Engineer – Mobile – iOS Location: London Contract: Permanent The News UK Tech team is at the core of one of the world's leading media companies, bringing together talented individuals to … agile, cross-functional, and diverse, with members based in London, Sofia, and Bangalore. Together, we are united by our passion for delivering world-class digital experiences. Role:As a Senior Mobile Engineer, you will contribute to the development of best-in-class mobile apps, working closely with product owners, stakeholders, and your engineering peers to deliver innovative, high … quality solutions. You will report to a Principal Engineer, supporting the delivery of technical strategies and tactical implementations, while also mentoring other engineers to maintain high standards of engineering excellence. Day to day you will: Develop new features and optimise existing ones for mobile applications, ensuring they meet business and user needs. Collaborate with product owners, stakeholders, and cross More ❯
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Senior Software Engineer

Nottingham, England, United Kingdom
Hybrid / WFH Options
Investigo
Senior Software Engineer (Python/Django) Location: Nottingham (Hybrid – 3 days per week onsite) Salary & Benefits: Up to £75,000 + Benefits An innovative technology company is seeking a Senior Software Engineer with strong Python and Django expertise to join their growing engineering team. This is a hands-on role focused on building scalable … design. Support DevOps practices, including CI/CD pipelines and infrastructure automation. Ensure reliability, performance, and security across all backend services. Skills & Experience 5+ years of commercial experience in software development, with a strong focus on Python and Django. Proven track record of building scalable web applications and APIs. Experience with application architecture and microservices. Familiarity with cloud platforms … ideally AWS. Proficiency with relational databases, especially PostgreSQL. Understanding of Agile methodologies and modern software delivery practices. Strong communication skills and a proactive, results-driven mindset. Passion for solving real-world problems through technology. If this role sounds of interested, please either apply or email me at james.ireson@investigo.co.uk More ❯
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Senior Software Engineer, Fullstack

london, south east england, united kingdom
Hybrid / WFH Options
Vanta
security and prove it with ease. Vanta has a kind and talented team, and while some have prior security experience, many have been successful at Vanta without it. Our Senior Software Engineers lead and mentor engineers, delivering high-value products for our customers and infrastructure that enables our business to scale. Our product integrates deeply with the services … and technology surface are growing quickly, and it's essential that we invest in the right abstractions and systems to enable us to scale with our business. As a Senior Software Engineer on our Privacy team based in London, you'll be an early member of our growing presence in Europe. You'll partner with product management … to travel to London if you live elsewhere. Visit our Vanta Engineering Blog to learn more about what our team is working on What you'll do as a Senior Software Engineer at Vanta: Lead complex projects with multiple stakeholders and engineers to deliver significant impact to our business Set direction for critical technical surface areas, enabling More ❯
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Senior Software Engineer

London Area, United Kingdom
La Fosse
Senior Software Engineer - £90,000 to £100,000 - Hybrid (London 3 days per week) - Scala Please note: This role does not provide sponsorship and requires candidates to work on-site at least three days per week. La Fosse has partnered with a leading global sports data and insights organization that is looking for a Senior Software Engineer with strong Scala experience. This hands-on role offers the opportunity to work in a fast-paced, high-impact team, contributing directly to cutting-edge projects in the sports analytics space. Key requirements: Proven experience in Scala, leveraging Cats and Play to build robust, test-driven, functional applications Hands-on knowledge of Typelevel frameworks, including Cats, Cats More ❯
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Senior Software Engineer

City of London, London, United Kingdom
La Fosse
Senior Software Engineer - £90,000 to £100,000 - Hybrid (London 3 days per week) - Scala Please note: This role does not provide sponsorship and requires candidates to work on-site at least three days per week. La Fosse has partnered with a leading global sports data and insights organization that is looking for a Senior Software Engineer with strong Scala experience. This hands-on role offers the opportunity to work in a fast-paced, high-impact team, contributing directly to cutting-edge projects in the sports analytics space. Key requirements: Proven experience in Scala, leveraging Cats and Play to build robust, test-driven, functional applications Hands-on knowledge of Typelevel frameworks, including Cats, Cats More ❯
Posted:

Senior Software Engineer

london, south east england, united kingdom
La Fosse
Senior Software Engineer - £90,000 to £100,000 - Hybrid (London 3 days per week) - Scala Please note: This role does not provide sponsorship and requires candidates to work on-site at least three days per week. La Fosse has partnered with a leading global sports data and insights organization that is looking for a Senior Software Engineer with strong Scala experience. This hands-on role offers the opportunity to work in a fast-paced, high-impact team, contributing directly to cutting-edge projects in the sports analytics space. Key requirements: Proven experience in Scala, leveraging Cats and Play to build robust, test-driven, functional applications Hands-on knowledge of Typelevel frameworks, including Cats, Cats More ❯
Posted:

Senior Software Engineer

london (city of london), south east england, united kingdom
La Fosse
Senior Software Engineer - £90,000 to £100,000 - Hybrid (London 3 days per week) - Scala Please note: This role does not provide sponsorship and requires candidates to work on-site at least three days per week. La Fosse has partnered with a leading global sports data and insights organization that is looking for a Senior Software Engineer with strong Scala experience. This hands-on role offers the opportunity to work in a fast-paced, high-impact team, contributing directly to cutting-edge projects in the sports analytics space. Key requirements: Proven experience in Scala, leveraging Cats and Play to build robust, test-driven, functional applications Hands-on knowledge of Typelevel frameworks, including Cats, Cats More ❯
Posted:

Senior Software Engineer

slough, south east england, united kingdom
La Fosse
Senior Software Engineer - £90,000 to £100,000 - Hybrid (London 3 days per week) - Scala Please note: This role does not provide sponsorship and requires candidates to work on-site at least three days per week. La Fosse has partnered with a leading global sports data and insights organization that is looking for a Senior Software Engineer with strong Scala experience. This hands-on role offers the opportunity to work in a fast-paced, high-impact team, contributing directly to cutting-edge projects in the sports analytics space. Key requirements: Proven experience in Scala, leveraging Cats and Play to build robust, test-driven, functional applications Hands-on knowledge of Typelevel frameworks, including Cats, Cats More ❯
Posted:

Senior Software Engineer (AdmitIT Team) with Security Clearance

Hanover, Maryland, United States
CACI
Senior Software Engineer (AdmitIT Team) Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None Type of Travel: None The Opportunity: CACI as a Prime Contractor on MWIII Bridge. All positions in Hanover, MD area. MWIII Bridge develops and supports Identity … Credential, and Access Management (ICAM) capabilities for the enterprise and stand-alone deployment throughout the IC. Tasks include program management, mission support, software integration, software development, system engineering, migration, testing, documentation development, network and system monitoring, configuration control and release management. Responsibilities: The Software Engineer will work with a team of other principal and senior-level contributors to provide development and production support for the AdmitIT product in support of the Zero Trust architecture. The Software Engineer will be responsible for building, managing, and automating configurable AdmitIT/ICAM product installations for DoD customers. Qualifications: Required: • TS/SCI Clearance with polygraph • Bachelor's Degree or higher in computer engineering or in More ❯
Employment Type: Permanent
Salary: USD 290,000 Annual
Posted:

Senior Software Engineer

City, London, United Kingdom
Retelligence
Job Title: Senior Software Engineer Reporting to: Lead Engineer Role Purpose: As a Senior Software Engineer, you will enhance and support both new and existing products within the Software Engineering group. In addition to contributing to feature development, you will play a role in shaping the technology and process strategies, and occasionally … lead innovation or software design initiatives. Key Responsibilities: Develop new features with a strong focus on high-quality code. Conduct peer code reviews to ensure quality and adherence to best practices. Participate in daily stand-ups, change analysis sessions, and technical presentations. Provide guidance on tool and environment adoption where necessary. Continuously develop knowledge of the business domain and … proficiency in C# at a commercial level. Solid experience with .NET Core and related open-source technologies. Knowledge of Object Orientation, SOA, and relevant design patterns. Experience with modern software development practices, including agile methodologies , version control, code reviews, and continuous integration. Understanding of concurrency, asynchrony, and parallelism. Experience with Test Driven Development (TDD), unit testing frameworks, mocking frameworks More ❯
Employment Type: Permanent
Salary: GBP 80,000 - 95,000 Annual
Posted:

Senior Software Engineer

EC2M, Bishopsgate, Greater London, United Kingdom
Retelligence
Job Title: Senior Software Engineer Reporting to: Lead Engineer Role Purpose: As a Senior Software Engineer, you will enhance and support both new and existing products within the Software Engineering group. In addition to contributing to feature development, you will play a role in shaping the technology and process strategies, and occasionally … lead innovation or software design initiatives. Key Responsibilities: Develop new features with a strong focus on high-quality code. Conduct peer code reviews to ensure quality and adherence to best practices. Participate in daily stand-ups, change analysis sessions, and technical presentations. Provide guidance on tool and environment adoption where necessary. Continuously develop knowledge of the business domain and … proficiency in C# at a commercial level. Solid experience with .NET Core and related open-source technologies. Knowledge of Object Orientation, SOA, and relevant design patterns. Experience with modern software development practices, including agile methodologies , version control, code reviews, and continuous integration. Understanding of concurrency, asynchrony, and parallelism. Experience with Test Driven Development (TDD), unit testing frameworks, mocking frameworks More ❯
Employment Type: Permanent
Salary: £80000 - £95000/annum + Bonus
Posted:

Sr. Senior Software Engineer - 23424 with Security Clearance

Colorado Springs, Colorado, United States
HII Mission Technologies
Enlighten, honored as a Top Workplace from USA Today, is a leader in big data solution development and deployment, with expertise in cloud-based services, software and systems engineering, cyber capabilities, and data science. Enlighten provides continued innovation and proactivity in meeting our customers' greatest challenges. Why Enlighten? At Enlighten, our team's unwavering work ethic, top talent and … non-recurrent compensation and will be addressed by the recruiter during the interview process. Job Description Enlighten is a cutting-edge technology company that is dedicated to developing innovative software solutions for our clients. We are currently seeking a talented and experienced Senior Software Engineer to join our team. As a Sr. Software Engineer, you will be responsible for designing, developing, and implementing complex software capabilities for computer-based systems. Will work closely with other talented engineers to create software solutions that meet the needs of our clients. A co-working space will be set up, and this role will play an active part in helping to manage and run its More ❯
Employment Type: Permanent
Salary: USD 180,000 Annual
Posted:

Senior Software Engineer (Hybrid) - 25778 with Security Clearance

Columbia, Maryland, United States
Hybrid / WFH Options
HII Mission Technologies
Enlighten, honored as a Top Workplace from USA Today, is a leader in big data solution development and deployment, with expertise in cloud-based services, software and systems engineering, cyber capabilities, and data science. Enlighten provides continued innovation and proactivity in meeting our customers' greatest challenges. We recognize that the most effective environment for your projects doesn't always … non-recurrent compensation and will be addressed by the recruiter during the interview process. Job Description Enlighten is a cutting-edge technology company that is dedicated to developing innovative software solutions for our clients. We are currently seeking a talented and experienced Software Engineer to join our team. As a Software Engineer, you will be … responsible for designing, developing, and implementing complex software capabilities for computer-based systems. Will work closely with other talented engineers to create software solutions that meet the needs of our clients. In this role, you will have the opportunity to work with modern tools and technologies, and you will be encouraged to stay up-to-date with the More ❯
Employment Type: Permanent
Salary: USD 200,000 Annual
Posted:

Software Engineer, Senior Associate with Security Clearance

Annapolis Junction, Maryland, United States
Peraton
of multiple work products in Project and/or Technical Process Areas associated with any of the ISO/IEC 15288 processes. About The Role Peraton is seeking a Software Engineer to support an IC mission in the Ft. Meade/Annapolis Junction, MD area. The Software Engineer develops, maintains, and enhances complex and diverse software … manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requirements. Works individually or as part of a team. Reviews and tests software components for adherence to the design requirements and documents test results. Resolves software problem reports. Utilizes software development and software design methodologies appropriate to the development … environment. Provides specific input to the software components of system design to include hardware/software trade offs, software reuse, use of Commercial Off-the-shelf (COTS)/Government Off-the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components. Responsibilities may include: Analyze user requirements More ❯
Employment Type: Permanent
Salary: USD 179,000 Annual
Posted:

Senior Software Engineer

bristol, south west england, united kingdom
Hybrid / WFH Options
Lloyds Banking Group
Salary Range £70,929 - £106,394 We support flexible working – click here for more information on flexible working options Flexible Working Options Hybrid Working, Job Share Job Description Summary Senior Software Engineer (Data) Job Description JOB TITLE: Senior Software Engineer (Data) SALARY: £70,929 – £78,810 LOCATION(S): Bristol HOURS: Full-time – 35 hours … help achieve our lab's goals and priorities. What you'll do Be responsible for all aspects of delivery of new solutions and features, creating low detail designs, lead software development, testing and operational stability, balancing priorities and ensuring adherence to group standards. Be responsible for leading a talented group of engineers, guiding and working alongside them on entire … software development lifecycle and manage the delivery of robust, scalable data applications and features. Ensure applications and code alignment with security principles, secure coding practices, addressing code vulnerabilities and PEN testing resolutions. Work with your team to deliver functional and non-functional requirements ensuring these are being met during design, software development and testing. Be solving technical problems More ❯
Posted:

Senior Software Engineer

Wareham, Dorset, South West, United Kingdom
Morson Talent
Are you a Senior Software Engineer looking for an interesting job opportunity? Our client, TKMS ATLAS UK, are seeking a Senior Software Engineer with skills in Java to work on the development of marine-based autonomous systems. This job will be based out of TKMS ATLAS UK's headquarters in Winfrith, Dorset. This position …/4 days onsite per week. The successful candidate must be able to achieve full SC level Security Clearance. Required Knowledge, skills and qualities • Proven ability to support software delivery • Educated to Degree or equivalent level in a software engineering or related discipline • Understanding of Autonomous systems, and their architectures • Understanding of the Military and Marine domain • Knowledge … and understanding of Software Engineering & delivery lifecycles, and integration with project management principles and practise • Experience of Software Engineering processes and tools • Ability to work in multi-disciplinary teams, across the whole engineering lifecycle, from inception to support • Ability to work closely with end users to understand usage of software, and identify together where improvements can be More ❯
Employment Type: Permanent
Posted:

Software Engineer (Associate, Experienced & Senior)

Saint Louis, Missouri, United States
BOEING
an 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 looking for a Software Engineer (Associate, Experienced & Senior) to join the F-15 Mission System Software Development Team located in Berkeley, MO. This position will focus on supporting the Boeing … Defense, Space & Security (BDS) business organization. The Boeing Company is currently seeking a Software Engineer (Associate, Experienced & Senior ) to join the F15 Mission Systems Software team located in Berkeley, MO . We are seeking a highly motivated Software Engineer to design and implement new capabilities in the F-15 Operational Flight Program (OFP) for … Air Force (USAF) and international customers. The candidate will join one of the multi-discipline Agile scrum teams that develop, integrate, and maintain a wide range of aircraft functionalities. Software capabilities will be developed for the Advanced Display Core Processor II (ADCP II), the brains of the Eagle. The successful candidate will implement and test new cutting-edge capabilities More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Software Engineer

Dublin, Ireland
TEKsystems, Inc
Description One of TEKsystems largest payments technology clients is seeking to hire a Senior Java Software Engineer to join their Payment Networks team. This person will be working on a mission critical application modernization of the client's payment settlement platform. This platform settles $50bn in transactions daily and is one of the most important applications within … their business. Seeking a Senior Software Development Engineer to join software engineering projects and develop and deliver enhanced software solutions. In this role, you will research alternative technical solutions for changing business needs. This role will be based in our technology hub in Dublin, Ireland, providing a state of the art environment for technology teams … enhancements; Drive prioritization decisions and trade offs in working with product partners; Identify opportunities and build roadmaps to enhance primary service/function; Automate and simplify all aspects of software delivery and development by actively evangelizing the need to automate and simplify where needed; Drive seamless integration across all connected services to meet end user expectations; Drive blameless postmortems More ❯
Employment Type: Permanent
Salary: EUR 125,000 - 150,000 Annual
Posted:

Senior Software Engineer (UK/Europe based - Fully remote)

East London, London, United Kingdom
Hybrid / WFH Options
Overloop
Senior Software Engineer (UK/Europe based - Fully remote) This is an exciting opportunity to work on a project for our client, a well known global company in the music industry. We are looking for a Senior Software Engineer based in the UK/Europe. At Overloop, we are a close-knit small team … is a UK based company, and our team currently works remotely from around Europe, Africa and and South America Are you the right candidate? We are looking for a Senior Python Engineer, based in the UK or Europe, and able to work UK hours. What you will do: Build products that empower artists and record labels across the … in re-architecture, refinement and technical design of various systems Mentor more junior engineers and contribute to a culture of continuous learning Who you are: Seeking 8+ years of software engineering experience in the following areas: Implementing distributed systems Microservice and asynchronous architecture Python and Javascript Building responsive frontend applications (our client uses TypeScript, React, and GraphQL) Database technologies More ❯
Posted:

Senior Software Engineer (UK/Europe based - Fully remote)

City of London, London, United Kingdom
Hybrid / WFH Options
Overloop
Senior Software Engineer (UK/Europe based - Fully remote) This is an exciting opportunity to work on a project for our client, a well known global company in the music industry. We are looking for a Senior Software Engineer based in the UK/Europe. At Overloop, we are a close-knit small team … is a UK based company, and our team currently works remotely from around Europe, Africa and and South America Are you the right candidate? We are looking for a Senior Python Engineer, based in the UK or Europe, and able to work UK hours. What you will do: Build products that empower artists and record labels across the … in re-architecture, refinement and technical design of various systems Mentor more junior engineers and contribute to a culture of continuous learning Who you are: Seeking 8+ years of software engineering experience in the following areas: Implementing distributed systems Microservice and asynchronous architecture Python and Javascript Building responsive frontend applications (our client uses TypeScript, React, and GraphQL) Database technologies More ❯
Posted:

Senior Software Engineer (UK/Europe based - Fully remote)

London Area, United Kingdom
Hybrid / WFH Options
Overloop
Senior Software Engineer (UK/Europe based - Fully remote) This is an exciting opportunity to work on a project for our client, a well known global company in the music industry. We are looking for a Senior Software Engineer based in the UK/Europe. At Overloop, we are a close-knit small team … is a UK based company, and our team currently works remotely from around Europe, Africa and and South America Are you the right candidate? We are looking for a Senior Python Engineer, based in the UK or Europe, and able to work UK hours. What you will do: Build products that empower artists and record labels across the … in re-architecture, refinement and technical design of various systems Mentor more junior engineers and contribute to a culture of continuous learning Who you are: Seeking 8+ years of software engineering experience in the following areas: Implementing distributed systems Microservice and asynchronous architecture Python and Javascript Building responsive frontend applications (our client uses TypeScript, React, and GraphQL) Database technologies More ❯
Posted:

Senior Software Engineer (UK/Europe based - Fully remote)

Bury, Greater Manchester, United Kingdom
Hybrid / WFH Options
Overloop
Senior Software Engineer (UK/Europe based - Fully remote) This is an exciting opportunity to work on a project for our client, a well known global company in the music industry. We are looking for a Senior Software Engineer based in the UK/Europe. At Overloop, we are a close-knit small team … is a UK based company, and our team currently works remotely from around Europe, Africa and and South America Are you the right candidate? We are looking for a Senior Python Engineer, based in the UK or Europe, and able to work UK hours. What you will do: Build products that empower artists and record labels across the … in re-architecture, refinement and technical design of various systems Mentor more junior engineers and contribute to a culture of continuous learning Who you are: Seeking 8+ years of software engineering experience in the following areas: Implementing distributed systems Microservice and asynchronous architecture Python and Javascript Building responsive frontend applications (our client uses TypeScript, React, and GraphQL) Database technologies More ❯
Posted:

Senior Software Engineer (UK/Europe based - Fully remote)

Altrincham, Greater Manchester, United Kingdom
Hybrid / WFH Options
Overloop
Senior Software Engineer (UK/Europe based - Fully remote) This is an exciting opportunity to work on a project for our client, a well known global company in the music industry. We are looking for a Senior Software Engineer based in the UK/Europe. At Overloop, we are a close-knit small team … is a UK based company, and our team currently works remotely from around Europe, Africa and and South America Are you the right candidate? We are looking for a Senior Python Engineer, based in the UK or Europe, and able to work UK hours. What you will do: Build products that empower artists and record labels across the … in re-architecture, refinement and technical design of various systems Mentor more junior engineers and contribute to a culture of continuous learning Who you are: Seeking 8+ years of software engineering experience in the following areas: Implementing distributed systems Microservice and asynchronous architecture Python and Javascript Building responsive frontend applications (our client uses TypeScript, React, and GraphQL) Database technologies More ❯
Posted:

Senior Software Engineer (UK/Europe based - Fully remote)

Bolton, Greater Manchester, United Kingdom
Hybrid / WFH Options
Overloop
Senior Software Engineer (UK/Europe based - Fully remote) This is an exciting opportunity to work on a project for our client, a well known global company in the music industry. We are looking for a Senior Software Engineer based in the UK/Europe. At Overloop, we are a close-knit small team … is a UK based company, and our team currently works remotely from around Europe, Africa and and South America Are you the right candidate? We are looking for a Senior Python Engineer, based in the UK or Europe, and able to work UK hours. What you will do: Build products that empower artists and record labels across the … in re-architecture, refinement and technical design of various systems Mentor more junior engineers and contribute to a culture of continuous learning Who you are: Seeking 8+ years of software engineering experience in the following areas: Implementing distributed systems Microservice and asynchronous architecture Python and Javascript Building responsive frontend applications (our client uses TypeScript, React, and GraphQL) Database technologies More ❯
Posted:
Senior Software Engineer
10th Percentile
£60,000
25th Percentile
£65,000
Median
£90,000
75th Percentile
£115,000
90th Percentile
£135,000