Permanent Senior Software Developer Job Vacancies

151 to 175 of 193 Permanent Senior Software Developer Jobs

Senior Software Developer

Taunton, Somerset, United Kingdom
Hybrid / WFH Options
CA Tech Talent
Are you an experienced full stack developer ready to lead impactful projects and help shape the digital future of a growing Southwest based company? This is a fantastic opportunity to join a collaborative and forward-thinking team that values clean code, user-focused solutions, and innovation. About the Role … Our client, a reputable and tech-embracing company based in the South West, is seeking a Senior Full Stack Developer to drive the development of customer-facing applications and internal platforms. You will work across the full development lifecycle, from architecture and design through to deployment, while mentoring … junior developers and influencing tech direction. This is a hands-on, senior-level role for someone who enjoys working across both front-end and back-end technologies in a modern, agile environment. Key Responsibilities: Lead the design, development, and delivery of high-quality web applications. Work across the full More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Flutter Developer Software Developers CrossWorkers

United Kingdom
Crossworkers -Egypt
Title: Senior Flutter Developer - Industry: IT Software - Reporting Line: Client (POC) - Position Type: Full Time -Level: Senior - Location: Cairo Office, New Cairo About the job: Seeking a skilled Flutter developer to join an international team of IT professionals in a supportive, humor-filled environment. The … and not disclosed to any third parties. Desired Skills and Experience: Fluent in Arabic and English (written and spoken). Bachelor's degree in Software Engineering or Computer Science. Minimum 3 years of Flutter experience. Experience in an international setting. Strong programming skills and a proactive approach to challenges. … for personal development and continuous learning! Travel: Travel to connect with your client and build lasting relationships! About Crossworkers: We are a Danish-owned software offshoring company, providing European clients with professional Egyptian developers. We have been in business since 2009, providing excellent services within offshoring software development. More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Front-end Software Developer (TS/SCI) with Security Clearance

Herndon, Virginia, United States
Hybrid / WFH Options
Maxar Technologies Holdings Inc
Please review the job details below. Maxar is seeking a Senior Front-end Software Developer to support the development and integration of various intelligence capabilities into a test and operational environment. You will be a member of a project team responsible for designing and deploying numerous components … interface to ensure that it meets the requirements of our users. You will work with a team of other front-end and back-end software developers and engineers, User Experience and User Interface designers, and Systems Engineers to build the user interface components supporting the KTIS LAIKA Mission Applications … leader in satellite imagery, unlocking the potential of space to help governments and businesses tackle challenges on Earth and beyond. We deliver cutting-edge software solutions tailored to the defense, intelligence, and commercial sectors. By leveraging our expertise, we monitor global changes, bolster national security, and drive advancements in More ❯
Employment Type: Permanent
Salary: USD 219,000 Annual
Posted:

Senior Software Developer with Security Clearance

Reston, Virginia, United States
Draper
collaborative environment that inspires the cross-fertilization of ideas necessary for true innovation. For more information about Draper, visit . Job Description Summary: The Software Engineer (SMTS) works on mission-oriented projects that span from self-driving cars and unmanned vehicles to medical applications and fielded systems for battlefield … situational awareness. Software Engineers work on multiple projects in an Agile environment, converting customer requirements into functional, scalable software solutions. As a part of the Software Engineering Team, developers will build out software solutions and see a project through from the design and requirements stage all … and deployment in the field. Job Description: Duties/Responsibilities • Independently execute task assignments. • Designs algorithms using modern theory and proven techniques, adheres to software best practices. • Analyzes designs to demonstrate performance and functionality. • Develops and executes software tests to check compliance with requirements. • Prepares technical data, procedures More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Full Stack Software Developer

Chichester, West Sussex, South East, United Kingdom
Hybrid / WFH Options
Apex8 Ltd
enquiries each month. We promote an excellent company culture and working environment with modern offices. We are seeking a highly skilled and motivated Senior Full Stack Software Developer to join our dynamic team. As our ideal candidate you will possess expertise in Symfony/Core PHP, ReactJS More ❯
Employment Type: Permanent, Work From Home
Salary: £65,000
Posted:

Software Developer (Senior) with Security Clearance

Springfield, Virginia, United States
American Systems Corporation
Analysis, and Training. Responsibilities Conducts research in design, development, testing and utilization of electronic data processing software. Designs, develops, documents, tests and debugs applications software and systems that contain logical and mathematical solutions. Conducts multidisciplinary research and collaborates with equipment designers and/or hardware engineers in the planning … output requirements, input data acquisition, programming techniques and controls; prepares operating instructions; designs and develops compilers and assemblers, utility programs, and operating systems. Ensures software standards are met. Analyzes user needs and software requirements to determine feasibility of design within time and cost constraints. Confers with systems analysts … engineers, programmers and others to design system and to obtain information on project limitations and capabilities, performance requirements and interfaces. Designs, develops and modifies software systems, using scientific analysis and mathematical models to predict and measure outcomes and consequences of design. Coordinates software system installations and monitors equipment More ❯
Employment Type: Permanent
Salary: USD 108,100 Annual
Posted:

Software Developer (Mid to Senior Level) with Security Clearance

Annapolis Junction, Maryland, United States
CCS Global Tech
Overview This is an excellent opportunity for an experienced software developer who is passionate about building innovative solutions and thrives in dynamic environments. The ideal candidate will have strong Java development expertise and at least 14 years of software development experience. The position offers a diverse set … Server-side business logic implementation Client web application and User Interface (UI) development The client is seeking professionals who prioritize quality, adhere to sound software development principles, and can effectively collaborate within an Agile team environment. Application Process Interested candidates are encouraged to submit their resume detailing their relevant … Ensure their clearance has been updated within the past seven (7) years (crossovers are acceptable). Key Responsibilities Collaborate with team members to perform software development tasks independently and within an Agile environment. Participate in Agile planning sessions and team-related activities. Analyze complex system requirements and design solutions More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Software Engineer/Application Developer (U.S. Citizen/Sec with Security Clearance

Chantilly, Virginia, United States
Task Force Talent LLC
Task Force Talent is seeking a senior software engineer/application developer with an active TS/SCI FSP security clearance to support a number of unique government contracts. Our client for this role is a small company with both commercial and government sector customers. They work … on very interesting, usually highly technical roles in cybersecurity, software development, data science, and related areas for well-known companies and government organizations. They have a high bar; however, they also have top compensation, benefits, and a strong company culture not found at larger firms. This role will be More ❯
Employment Type: Permanent
Salary: USD 205,000 Annual
Posted:

Sr. Software Developer / Sr. Application Developer with Security Clearance

Herndon, Virginia, United States
Hybrid / WFH Options
Leidos
R- Description Leidos is looking for a Full Stack Software Developer with a current TS-SCI Clearance in Key West, FL or remote worker. The program provides sustainment support for Mission-Critical applications and capabilities. Each system has its own specific requirements and infrastructure. Our effort encompasses system … these programming activities are below, this list may not be all inclusive: Leadership skills are highly desired. We are seeking technical, self-motivated Application developer , to be versatile and flexible to changing priorities from multiple customers. Candidates must work well in an Agile Scrum environment. Primary Responsibilities List daily … duties and/or specific job responsibilities: Design, Build, Test software upgrades and modifications Troubleshoot software and system issues in a Agile scrum team Use technical expertise to suggest environment and process upgrades Implement COTS, and other third party, product updates Basic Qualifications: BS Degree and 8 years More ❯
Employment Type: Permanent
Salary: USD 162,150 Annual
Posted:

Software Developer, Senior with Security Clearance

Fairfax, Virginia, United States
Hybrid / WFH Options
CGI
also introduce cutting-edge features to better serve law enforcement agencies. This contract provides the ability to work with advanced cloud technologies and modern software architectures while contributing to the efficiency and effectiveness of law enforcement agencies across the nation. Apply now to join the N3G Project Team and … preferred location is Fairfax, VA; however, a hybrid working model is acceptable. Your future duties and responsibilities: Develops, creates, and modifies general computer applications software or specialized utility programs. Analyzes user needs and develops software solutions. Designs or customizes software for client use with the aim of … databases within an application area, working individually or coordinating database development as part of a team. Researches, designs, develops, and tests operating systems-level software, compilers, and network distribution software for medical, industrial, military, communications, aerospace, business, scientific, and general computing applications. Sets operational specifications and formulates and More ❯
Employment Type: Permanent
Salary: USD 185,800 Annual
Posted:

Sr Software Developer (TS/SCI CI Poly) with Security Clearance

Chantilly, Virginia, United States
Strategic Business Systems
Strategic Business Systems, Inc. (SBS) is hiring a motivated Sr Software Developer to support a cutting-edge modeling and analytics framework in support of the U.S. Intelligence Community (IC). On this program you will have the opportunity to work with technical leaders in cloud computing and data … make real-time, mission-critical decisions. Candidates must have a minimum of TS/SCI with CI Poly clearance or higher. Candidates will provide software design and development expertise in support of both new application development tasks and maintenance of existing systems. Candidates must be self-motivated who can … understand technical concepts and collaborate on technical direction with the team. Job Responsibilities: Designs, develops, enhances, debugs, and implements software Troubleshoots production problems related to software applications Designs and develops major enhancements to existing software Addresses problems of systems integration, compatibility, and multiple platforms Meets with project More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Sr. Software Developer with Security Clearance

Dayton, Ohio, United States
Concept Plus LLC
innovative environment! For additional information about our dynamic organization, please visit our website. at . About the role Concept Plus is seeking a Sr. Software Developer to provide software development for client applications including design, development, implementation, and support of needed services. As part of the technical … environments (dev, test, production) adhering to required standards. What you'll do Support the design and development of client program changes for interface requirements, software changes, and Cloud migration impacts to integration and operations. Manage software changes and data changes needed for client Applications at Enclaves and Cloud … technical decisions regarding client applications and interfaces. Qualifications US Citizenship w/ability to gain/maintain government clearance 10+ years of experience with Software Development 5+ years of experience with JAVA, Tomcat, WebSphere 7, IIS, HTML, Visual Studio, C++, ASP.NET, C#, WebLogic Perl, MS SQL Server, Oracle 19c More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Sr Software Developer

Brighton, Sussex, United Kingdom
Hatch IT
hatch I.T. is partnering with Via to find a Sr Software Developer. See details below: About the Role: An impressive mission requires an equally impressive Senior Software Engineer. VIA is looking for someone who is motivated to drive the development of secure, privacy-preserving solutions that empower … proactive problem-solvers with a passion for innovation, a deep curiosity for cutting-edge technologies, and an unwavering commitment to delivering secure, high-quality software solutions. In this role, you will: Provide technical expertise on privacy and security to support the delivery of customer projects Design and build secure … and distributed systems to create cutting-edge products that precisely cater to customer needs Develop automated unit and integration tests to deliver high quality software Analyze, test, and optimize critical software modules to mitigate performance bottlenecks What you will bring to this role: Bachelor's degree or higher More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Front-End Application Software Developer with Security Clearance

Herndon, Virginia, United States
NS2 Mission
Are you a skilled Front-End Developer eager to modernize mission-critical systems? NS2 Mission is looking for a motivated and self-driven Front-End Software Developer to join our team in Herndon, VA. This role involves re-architecting a large-scale access control system, transitioning from … efficient solutions. Debug and optimize web applications for performance and usability. Ensure quality through unit and integration testing.Required Qualifications: Experience: 8-12 years in software development with a focus on front-end development. Education: Master's Degree in Computer Science, Information Systems, Engineering, or a related field. Alternatively, a More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Sr. Software Developer with Security Clearance

Aberdeen Proving Ground, Maryland, United States
Bristol Bay Government Services Group, LLC
Eagle Integrated Services, LLC (EIS) is seeking Software Development support for client at Aberdeen Proving Ground (APG), Maryland. ACTIVE SECRET CLEARANCE REQUIRED We are seeking a Software Developer to support in the disciplines as listed, but not limited to, below: Develops and maintains working software that … appropriately delegating tasks to team members. Able to oversee work performed by others and ensure quality by identifying and correcting errors. Creates and maintains software code and automation scripts Defines, analyzes, validates and documents complex operating environments, states of technology and current processes. Creates and maintains technical and user … documentation Maintains configuration management and version control within a government provided software repository using Git or other version control system. Conducts code reviews and scans to identify potential flaws in code and mitigate vulnerabilities Performs risk analysis to identify threats, vulnerabilities and likelihood and impact of exploitation Automates and More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Software Developer with Security Clearance

Annapolis Junction, Maryland, United States
Tech USA
Researches, designs, develops, and/or modifies enterprise-wide systems and/or applications software Applies advanced knowledge to all phases of the software development lifecycle Applies advanced knowledge to software updates, refinement, testing, and debugging to meet business needs Provides advance analysis for reports on software project specifications, activities, or status Provides advanced guidance on the software or system for optimal documentation and future maintenance and updates Required: Javascript ServiceNow Certified Administrator CompTIA Security+ CE Required More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Software Developer with Security Clearance

Herndon, Virginia, United States
Peraton
works to improve technology effectiveness, eliminate overlaps, and prioritize customer needs by delivering data and new capabilities to support mission success. About The Role Software Engineer (Kubernetes/Openshift) Location: Herndon, VA Clearance Requirement: Active TS/SCI with polygraph or SCI eligibility and ability to obtain polygraph. Employment … If you're looking to make an impact and drive technical excellence, we want you on our team. Position Overview We are seeking a Software Engineer with expertise in Agile development, Platform-as-a-Service (PaaS), and containerization technologies to join our cross-functional Scrum team. This role involves … designing, developing, and implementing software solutions utilizing Kubernetes and OpenShift to ensure secure, scalable, and high-availability deployments. Key Responsibilities Develop, test, and maintain software applications and systems that incorporate logical and mathematical solutions. Collaborate with systems analysts, engineers, and developers to define system requirements, performance metrics, and More ❯
Employment Type: Permanent
Salary: USD 216,000 Annual
Posted:

Sr Software Developer

Cambridge, Cambridgeshire, United Kingdom
Hybrid / WFH Options
Entrust Corporation
Our people. It's the curiosity , dedication, and innovation that drive our success and help us anticipate the future. We are looking for Sr Software Developer to join our Cambridge-UK team! Position Overview: A highly skilled C/Python developer with good design skills, to work … on a major crypto-security product. Responsibilities: Play a significant role in the design and development of our full-stack system software embedded in HSMs, client-side tools, API libraries. Develop features from inception to delivery Software design & coding, testing, and review. Essential Qualifications: Degree or equivalent, in … Software Engineering, Computer Science, Maths or relevant discipline. Large-scale development & design on Linux/Windows. Experienced in C & Python development Full-stack development over the range from embedded code & drivers, to client-side tools & API libraries. Familiar with complex, multi-component projects, using multiple development languages. Solve complex More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Software Developer with Security Clearance

Tucson, Arizona, United States
Hybrid / WFH Options
Ed Wallach Search Group
communications systems in support of national security defense. Core responsibilities include creative problem solving, researching or inventing advanced geolocation algorithms, implementing them in efficient software, testing with real-world data, and deploying to front-line customer facilities. Our dynamic environment and diverse projects demand flexibility to learn new technologies … areas: systems engineering, development, integration and test, deployment and O&M. Core responsibilities include: • Design/architect, develop, test, deploy, and operate fully integrated software • Design, build, and maintain infrastructure for modern integration between our applications and third-party services • Collaborate extremely effectively with product managers, designers, other engineers … stakeholders, and vendors on projects within the team. • Communicate technical ideas and work closely with other senior members of the team. You will also provide technical leadership and guidance to junior team members and mentor others to grow in their technical abilities. A key responsibility is staying up-to More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Senior Software Developer In Test

City of London, London, United Kingdom
Hybrid / WFH Options
Optimal IT Recruitment Ltd
Job Title: Software Development Engineer in Test (SDET) Location: London (Hybrid 3 days per week on-site sometimes 2 days!) Salary: Up to £80k + bonus + benefits Are you an SDET with exceptional TypeScript and Playwright skills? Were seeking a talented Software Development Engineer in Test for More ❯
Employment Type: Permanent, Work From Home
Salary: £80,000
Posted:

Senior Software Developers/Engineers with Python, Terraform and Go

Central London, London
Hybrid / WFH Options
Nexus Jobs Limited
Job Description Senior Software Developers/Engineers with Python, Terraform and Go Our Client is looking to recruit brilliant Software Developers/Engineers with upwards of 7 to 10 years solid proven track record of developing complex applications with Python coupled with Machine Learning and ideally Go. … We're looking to recruit initially 2 excellent Software Engineers to work with an existing team of 4 software developers on a very large strategic consulting engagement. Must be 100% trustworthy with real integrity - this is a highly sensitive project. Key skills Python Machine Learning ideally Terraform Go … programming language If you are excellent with developing software with C++ and/or C# etc... then you can easily learn Go. Excellence is vital. Ideally have security clearance. Duration for this assignment will be 3 to 6 months initially with possibility of the role becoming permanent at some More ❯
Employment Type: Permanent
Salary: £500 - £2,000
Posted:

Sr. Software Developer SAN DIEGO with Security Clearance

San Diego, California, United States
Leidos
ahead. If this sounds like the kind of environment where you can thrive, keep reading! We have an exciting opportunity for an experienced Sr. Software Engineers who currently possess an active TS/SCI Polygraph clearance AND JAVA experience to join a high performing agile team using the Scaled … technology and adding advanced capabilities over the coming three years while continuing to support an on-going mission and operational system. You will perform software development activities as a member of an agile development team. Development includes the full range of turning agile stories into implementable concepts, through development … Java cryptographic framework, XML, web UI and special purpose device programming opportunities are available. You will be responsible for analyzing and resolving highly complex software issues related to multiple aspects and components of the system; collaborate with other experts within the program and in the user community to design More ❯
Employment Type: Permanent
Salary: USD Annual
Posted:

Sr PowerApps Software Developer with Security Clearance

Arlington, Virginia, United States
Peraton
Operations, Cyber Threat and Investigations, and Technology Innovation and Engineering State. About The Role Peraton is currently seeking to hire an experienced Sr PowerApps Software Developer to become part of Peraton's Department of State (DoS) Diplomatic Security Cyber Mission (DSCM) program providing leading cyber and technology security … years of relevant experience. An additional 4 years of experience may be considered in lieu of degree Minimum of 7 years of experience in software development, with a focus on MS PowerApps. Possess or obtain ONE of the following certifications within 6 months of start date: CASP+ CE, CCNA … and Scrum methodologies as well as requirements review and decomposition. Continuous learning mindset with evidence of ongoing professional development in Power Platform technologies and software development principles. U.S. citizenship required. An active Secret security clearance. Ability to obtain final Top-Secret clearance. Preferred Requirements: Proficiency in developing custom connectors More ❯
Employment Type: Permanent
Salary: USD 179,000 Annual
Posted:

Senior Software Developer

West Midlands, United Kingdom
Hybrid / WFH Options
Clarion Housing
Contract Type: Permanent We're one of LinkedIn's Top Companies 2024 Join Our New Team of Developers! We're building a brand-new Software Engineering function at Clarion Housing and need both front-end and back-end developers to build greenfield software projects. Working in a squad More ❯
Employment Type: Permanent, Work From Home
Salary: £75,000
Posted:

Senior Software Developer

Coventry, Warwickshire, United Kingdom
Randstad (Schweiz) AG
levels-and set to rise even further. This paves the way for significant company expansion across all fronts. We urgently need highly capable, ambitious software engineers to accelerate our product development and help take us to the next level. Why Join ApplianSys? We aim to be world-class in … principles extend beyond business objectives-we live by them. For more insight into working at ApplianSys, visit . The Role This position is for senior developers to contribute to all phases of the product development cycle. You will: Work in teams to specify, design, and develop software for More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:
Senior Software Developer
25th Percentile
£52,500
Median
£64,000
75th Percentile
£85,000
90th Percentile
£115,000