At Appfire, we believe that great work happens when people get to choose how they work. After 20 years of creating software that empowers teams to break silos and collaborate seamlessly, we've learned that one size does not fit all. That’s why at Appfire, you choose. Choose to work where you thrive: Whether from home, in one of our offices, or while exploring the world, you decide where you’re most productive. From hardware and software to access to two decades of collective wisdom on working effectively in a remote-first company, we’ve got you covered. Choose to balance your life without compromise: Plan your workday around your needs and what matters most to you. Enjoy flexible time off without the hassle of complicated approvals. From day one, we trust you to deliver quality work without sacrificing your personal life, hobbies, loved ones, and well-being. Choose to grow on your terms: Take charge of your professional growth with access to online learning platforms, facilitated training, leadership programs, and internal hackathons. Collaborate with a global team to gain fresh perspectives. When you're ready for a new challenge, our internal mobility program is here to support your journey. No one knows you better than you do. So join us and customize your experience. Choose how you want to work. Choose Appfire. About the role Appfire is looking for a Senior Software Engineer to join the Flow data platform team and work on the systems that power our software engineering intelligence product. In this role, you’ll design, build, and maintain secure, reliable workflows that ingest and process large volumes of customer data from third-party SaaS tools. Flow transforms commit, ticket, and PR data into clear insights that help teams ship faster, collaborate better, and stay aligned with business goals. You’ll collaborate closely with product, engineering, and security stakeholders and your work will directly impact product quality, performance, and how customers experience Flow. This role is fully remote. Your everyday tasks will include: - Designing and evolving backend systems that securely ingest large-scale engineering data and transform it into engineering insights. - Owning features and services end-to-end — from concept and architecture through implementation, deployment, and iteration. - Building and maintaining production-grade HTTP APIs used across the Flow platform. - Working closely with product managers, engineers, and partners across teams. - Contributing to coding standards, architecture discussions, and technical direction. - Reviewing code, providing constructive feedback, and helping grow engineering excellence. - Supporting both greenfield development and ongoing improvements to existing systems. - Ensuring quality, reliability, scalability, performance, and security in an environment without dedicated QA. Skills and experience you'll need to succeed: - 5+ years of experience as a backend or full-stack engineer in a SaaS environment - Strong proficiency in SQL - Proficiency in Python - Experience designing and building production HTTP APIs - Experience working with cloud-hosted services and containerized applications - Strong understanding of system performance, scalability, and data-intensive workflows - Practical experience with Git and code review practices - Comfortable working with autonomy and ownership in an Agile environment Nice to have - Practical experience with Git and code review practices - Experience with Django or similar backend frameworks - Experience with React / TypeScript - Experience with Java - Exposure to Postgres, Redis, AWS services, Kubernetes, or Docker - Knowledge of serverless patterns - Interest in working on developer tools, engineering productivity, and enterprise SaaS - Familiarity with advanced Git concepts Beyond the resume skills that match our culture and this role: - You are dedicated to elevating client and co-worker experiences, knowing that exceptional work centers on serving others. - You adapt swiftly to new business demands, understanding that change fuels collective and individual growth. - You excel in communication, effectively connecting in remote/hybrid environments using tools like Slack, Zoom, and G Suite and through occasional in-person events. - You have exceptional coaching, mentoring, and people development skills. Disclaimer: The responsibilities outlined in this job posting are intended to provide a general overview of the role. Additional duties may be assigned as needed to meet the needs of the business. #LI-Remote About Appfire A people-first approach to business Since its inception, Appfire has been a remote-first company. With 850+ employees (who we call fireflies) across 28 countries, we foster an environment where everyone is respected. We invest in team members by ensuring they grow professionally and personally. Making an impact At Appfire, CSR means embedding purpose, responsibility, and impact into everything we do. We use our people, products, and partnerships to make a meaningful difference in the world, we act responsibly as a business, and we empower communities while strengthening our skills and culture and fostering belonging across Appfire. In 2015, Appfire joined the Pledge 1% network of organizations committed to philanthropy. Appfire has since grown our Pledge 1% program to include all four pledge types — product, profit, equity, and employee time. We were among the first to do this, and we’re proud that Pledge 1% is part of our evolution. Our business Appfire mission to equip and connect every team so they can plan and deliver their best work. We are committed to building a durable, multi-generational business, and to evolving, innovating, and scaling in a way that ensures stability and opportunity for years to come What’s our secret sauce? - We follow teams. We do our research and build software that solves real-life collaboration challenges while being easy to implement and a joy to use. We’re proud to support over 20,000 customers and growing, including 55% of the Fortune 500. From the entertainment delivered by Netflix to the devices crafted by Samsung, and Dell Technologies and the financial transactions handled by Visa, Edward Jones, and US Bank, Appfire’s technology is indispensable. Our products also play a pivotal role in streamlining operations and fostering innovation at companies like Tesla and significant institutions such as NASA, Boeing, and many more. - We enhance. Our software is designed to give developers, knowledge workers, and teams the ability to extend and get greater value from the platforms they’ve invested in and enjoy. So far, our solutions extend and enhance the capabilities offered by Atlassian, Microsoft, monday.com, and Salesforce. - We build bridges and invest in our partners. Appfire's success is underscored by its channel program as its primary path to market. Today, Appfire has a dedicated Channel team supporting 800+ channel partners. - We make security and privacy a priority, but we also keep it simple for our customers. We’ve achieved International Organization for Standardization (ISO) 27001 and ISO 27017 and System and Organization Controls (SOC) SOC 2, Type I and SOC 2, Type II certifications. Our award-winning Appfire Trust Center, offers our customers, partners, and prospects the latest security, privacy, and compliance information, including pre-completed questionnaires (CAIQ, SIG, and VSA) with an accelerated NDA process and just one EULA to cover it all. Market recognition Appfire has been consistently recognized for company growth, culture, corporate social responsibility, and product excellence and has been included among the Deloitte Technology Fast 500, Inc. Best Workplaces, BuiltIn Best Places to Work, and Inc. 5000. Learn more about our accomplishments, which would not be possible without our team members, partners, and customers: https://appfire.com/awards. Equal Employer Opportunity (EEO) Appfire is an equal opportunity employer and does not discriminate based on race, color, religion, sex (including pregnancy), sexual orientation, gender identity or expression, national origin, age, disability, genetic information, marital status, veteran status, or any other protected characteristic as defined by applicable law. Our commitment extends to all employment practices, including recruitment, hiring, training, promotion, compensation, benefits, and termination.

At Appfire, we believe that great work happens when people get to choose how they work. After 20 years of creating software that empowers teams to break silos and collaborate seamlessly, we've learned that one size does not fit all. That’s why at Appfire, you choose. Choose to work where you thrive: Whether from home, in one of our offices, or while exploring the world, you decide where you’re most productive. From hardware and software to access to two decades of collective wisdom on working effectively in a remote-first company, we’ve got you covered. Choose to balance your life without compromise: Plan your workday around your needs and what matters most to you. Enjoy flexible time off without the hassle of complicated approvals. From day one, we trust you to deliver quality work without sacrificing your personal life, hobbies, loved ones, and well-being. Choose to grow on your terms: Take charge of your professional growth with access to online learning platforms, facilitated training, leadership programs, and internal hackathons. Collaborate with a global team to gain fresh perspectives. When you're ready for a new challenge, our internal mobility program is here to support your journey. No one knows you better than you do. So join us and customize your experience. Choose how you want to work. Choose Appfire. About the role Appfire is looking for a Senior Software Engineer to join the Flow data platform team and work on the systems that power our software engineering intelligence product. In this role, you’ll design, build, and maintain secure, reliable workflows that ingest and process large volumes of customer data from third-party SaaS tools. Flow transforms commit, ticket, and PR data into clear insights that help teams ship faster, collaborate better, and stay aligned with business goals. You’ll collaborate closely with product, engineering, and security stakeholders and your work will directly impact product quality, performance, and how customers experience Flow. This role is fully remote. Your everyday tasks will include: - Designing and evolving backend systems that securely ingest large-scale engineering data and transform it into engineering insights. - Owning features and services end-to-end — from concept and architecture through implementation, deployment, and iteration. - Building and maintaining production-grade HTTP APIs used across the Flow platform. - Working closely with product managers, engineers, and partners across teams. - Contributing to coding standards, architecture discussions, and technical direction. - Reviewing code, providing constructive feedback, and helping grow engineering excellence. - Supporting both greenfield development and ongoing improvements to existing systems. - Ensuring quality, reliability, scalability, performance, and security in an environment without dedicated QA. Skills and experience you'll need to succeed: - 5+ years of experience as a backend or full-stack engineer in a SaaS environment - Strong proficiency in SQL - Proficiency in Python - Experience designing and building production HTTP APIs - Experience working with cloud-hosted services and containerized applications - Strong understanding of system performance, scalability, and data-intensive workflows - Practical experience with Git and code review practices - Comfortable working with autonomy and ownership in an Agile environment Nice to have - Practical experience with Git and code review practices - Experience with Django or similar backend frameworks - Experience with React / TypeScript - Experience with Java - Exposure to Postgres, Redis, AWS services, Kubernetes, or Docker - Knowledge of serverless patterns - Interest in working on developer tools, engineering productivity, and enterprise SaaS - Familiarity with advanced Git concepts Beyond the resume skills that match our culture and this role: - You are dedicated to elevating client and co-worker experiences, knowing that exceptional work centers on serving others. - You adapt swiftly to new business demands, understanding that change fuels collective and individual growth. - You excel in communication, effectively connecting in remote/hybrid environments using tools like Slack, Zoom, and G Suite and through occasional in-person events. - You have exceptional coaching, mentoring, and people development skills. We offer: - 25 paid days off, regardless of years of experience - Private healthcare - Sofia public transport card - Multisport card - Development opportunities via our Appfire University Disclaimer: The responsibilities outlined in this job posting are intended to provide a general overview of the role. Additional duties may be assigned as needed to meet the needs of the business. #LI-Remote About Appfire A people-first approach to business Since its inception, Appfire has been a remote-first company. With 850+ employees (who we call fireflies) across 28 countries, we foster an environment where everyone is respected. We invest in team members by ensuring they grow professionally and personally. Making an impact At Appfire, CSR means embedding purpose, responsibility, and impact into everything we do. We use our people, products, and partnerships to make a meaningful difference in the world, we act responsibly as a business, and we empower communities while strengthening our skills and culture and fostering belonging across Appfire. In 2015, Appfire joined the Pledge 1% network of organizations committed to philanthropy. Appfire has since grown our Pledge 1% program to include all four pledge types — product, profit, equity, and employee time. We were among the first to do this, and we’re proud that Pledge 1% is part of our evolution. Our business Appfire mission to equip and connect every team so they can plan and deliver their best work. We are committed to building a durable, multi-generational business, and to evolving, innovating, and scaling in a way that ensures stability and opportunity for years to come What’s our secret sauce? - We follow teams. We do our research and build software that solves real-life collaboration challenges while being easy to implement and a joy to use. We’re proud to support over 20,000 customers and growing, including 55% of the Fortune 500. From the entertainment delivered by Netflix to the devices crafted by Samsung, and Dell Technologies and the financial transactions handled by Visa, Edward Jones, and US Bank, Appfire’s technology is indispensable. Our products also play a pivotal role in streamlining operations and fostering innovation at companies like Tesla and significant institutions such as NASA, Boeing, and many more. - We enhance. Our software is designed to give developers, knowledge workers, and teams the ability to extend and get greater value from the platforms they’ve invested in and enjoy. So far, our solutions extend and enhance the capabilities offered by Atlassian, Microsoft, monday.com, and Salesforce. - We build bridges and invest in our partners. Appfire's success is underscored by its channel program as its primary path to market. Today, Appfire has a dedicated Channel team supporting 800+ channel partners. - We make security and privacy a priority, but we also keep it simple for our customers. We’ve achieved International Organization for Standardization (ISO) 27001 and ISO 27017 and System and Organization Controls (SOC) SOC 2, Type I and SOC 2, Type II certifications. Our award-winning Appfire Trust Center, offers our customers, partners, and prospects the latest security, privacy, and compliance information, including pre-completed questionnaires (CAIQ, SIG, and VSA) with an accelerated NDA process and just one EULA to cover it all. Market recognition Appfire has been consistently recognized for company growth, culture, corporate social responsibility, and product excellence and has been included among the Deloitte Technology Fast 500, Inc. Best Workplaces, BuiltIn Best Places to Work, and Inc. 5000. Learn more about our accomplishments, which would not be possible without our team members, partners, and customers: https://appfire.com/awards. Equal Employer Opportunity (EEO) Appfire is an equal opportunity employer and does not discriminate based on race, color, religion, sex (including pregnancy), sexual orientation, gender identity or expression, national origin, age, disability, genetic information, marital status, veteran status, or any other protected characteristic as defined by applicable law. Our commitment extends to all employment practices, including recruitment, hiring, training, promotion, compensation, benefits, and termination.

We’re building something powerful. Let’s build it together. We've delivered high-performance embedded computing solutions for four decades across industries including defence, telecoms, and aerospace. We’re proud to be experts in what we do and are looking for more brilliant people to join our team. The Role We are looking for an experienced Senior Software Engineer – ATE to take a technical role in developing and maintaining automated test systems used to validate our advanced embedded computing products by operations. This is a key position in ensuring that every product meets the company’s exacting standards for performance and reliability and to support the rapidly growing production of our products. What will I be delivering? As a Senior Software Engineer within the ATE team, you will be responsible for the design, architecture, and implementation of complex automated test software solutions. You will technically lead ATE projects from concept to deployment, mentoring junior engineers and collaborating with cross-functional teams in hardware, firmware, and manufacturing to enhance product test coverage, throughput, and diagnostic accuracy. Key Responsibilities:• Technical lead the design and development of automated test software architectures for production and system-level validation. • Drive technical direction for ATE software frameworks and toolchains, ensuring scalability, maintainability, and reusability. • Integrate and control test instrumentation, fixtures, and interfaces using standard communication protocols (e.g., GPIB, USB, Ethernet, RS-232). • Develop and maintain test libraries, drivers, and APIs to support diverse hardware platforms. • Collaborate closely with hardware, firmware, and production teams to define test requirements and ensure full coverage of product functionality. • Analyse test results, investigate issues, and contribute to root cause analysis and continuous improvement initiatives. • Oversee legacy ATE systems, implementing upgrades and performance optimisations. • Mentor and support junior software and test engineers in best practices for software design, test automation, and coding standards. • Ensure all ATE software complies with internal quality management systems and industry standards (e.g., ISO 9001, IPC). What do I need to bring with me? Essential Skills & Qualifications • Degree in Software Engineering, Computer Science, Electronics, or a related discipline. • Extensive experience developing software for automated test systems or hardware validation environments. • Strong proficiency in C#, C/C++, or Python, including OO design and software architecture principles. • Hands-on experience with instrumentation control, and data acquisition systems. • Proven ability to integrate test software with electronic hardware and embedded systems. • Strong knowledge of Windows and Linux development environments. • Experience with source control systems (e.g., Git) and issue tracking tools (e.g., Jira). • Excellent analytical, debugging, and problem-solving skills. • Strong communication and mentoring capabilities. Desirable Skills • Experience with NI TestStand, LabVIEW, or similar ATE frameworks. • Familiarity with database-driven test data management and traceability tools. • Understanding of networking interfaces, VME/VPX hardware, or embedded product architectures. • Exposure to manufacturing process automation or factory test workflows. Benefits for working at Concurrent· 25 days holidays + bank holidays and holiday purchase scheme. · Annual profit share bonus. · Cycle to work, Home & Tech and car salary sacrifice schemes. · Death in service benefit & income protection. · Employee assistance programme and virtual GP. · Employee referral scheme. · Enhanced parental leave. · Generous company pension scheme with up to 10% employer contribution. · One paid volunteering day per year. · Private Health Insurance through Bupa. · YuLife wellbeing app. Equal Opportunity StatementWe are an equal opportunity employer and believe in the power of a diverse, inclusive team. We welcome all applications from all suitably qualified people, regardless of race, sex, disability, religion / belief, sexual orientation or age. Please let us know if you require anything which would enable your success throughout our interview process.

• Design, develop, and execute test cases to validate system functionality, data integrity, and end-to-end business processes • Maintain and refine automated test scripts using approved automation tools (e.g., Eggplant, Selenium, Katalon, or equivalent automated testing tools) • Support end-to-end validation efforts across integrated systems, including PLM, ERP, and interface/data exchange processes • Support in the coordination and completion of internal testing activities (e.g., smoke, system, functional and regression testing) to ensure timely development completion and quality delivery of software • Ensure all testing activities produce appropriate OQE artifacts in support of DoD compliance requirements • Identify, document, and track defects, working closely with development and functional teams to support resolution and retesting • Analyze test results and provide clear, concise status updates and report to the Test Lead • Ensure traceability between requirements, test cases, and defects to align with DoD validation requirements • Assist in building and expanding the regression test suite to support ongoing releases and system changes • Collaborate with cross-functional teams (e.g., QA, IT, business users) to ensure alignment of testing scope, data, and expected outcomes • Contribute to the continuous improvement of testing processes, tools, and methodologies to increase efficiency and quality.