Senior Software Engineer - Android (AOSP)

Fairphone

ABOUT FAIRPHONE Fairphone is more than just a company - we are a global leader in sustainable, modular electronics, on a mission to change the electronics industry from the inside out. Built on strong social and environmental values, we are a diverse and inclusive team from all walks of life creating market consumer electronics that make a real impact. At Fairphone, you will find a supportive and safe space where everyone can be themselves, collaborate openly, and have the freedom to learn and grow - because that’s how we innovate and drive change together!  So… are you a proactive, self-motivated team player who loves taking initiative and bringing positive energy? Do you thrive in a fast-moving start-up or scale-up environment? Are you a great communicator who values collaboration and embraces different perspectives? And most importantly, do you feel a strong connection to Fairphone’s mission and values? If you're nodding along and thinking, “Yes, that’s me!”, then check out our vacancy below!  Please know that we acknowledge that we are living in a time where the use of AI can bring many efficiencies and support. However, we want to know the real YOU. Please try to limit the use of AI tools to generate answers to the application; we value authenticity and encourage you to use your creativity!  * Location: Amsterdam-based position * Hours: 32 to 40 hours per week * Start: 01.08.2026 * Contract duration: The 1st 12-month employment contract with the possibility of extension to permanent  * Deadline to apply: We review applications on a rolling basis. Please apply as soon as possible ABOUT YOUR ROLE The Fairphone Software Engineering team is seeking a Software Engineer to lead the integration of software features for our partners. In this role, you will be responsible for integrating specialized third-party solutions—such as advanced accessibility tools or robust digital safety features—directly into our Android ecosystem. In this role, you won't just maintain a device; you will be the technical bridge between Fairphone and our ODMs (original design manufacturers), ensuring that partner-specific software components are seamlessly architected, integrated, and maintained within our Android ecosystem. You will champion sustainable and long lasting software development while ensuring our partners' unique requirements are met with high-quality, scalable solutions. While this is a deeply technical engineering role, project management experience is essential. You will be expected to manage complex integration timelines, navigate vendor relationships, and coordinate cross-functional delivery, ensuring that technical milestones align with broader business objectives. You will report to our Head of Software Engineering, who reports to our CTO. KEY RESPONSIBILITIES & OBJECTIVES Your Key Responsibilities   * Design and implement software bridges and integration layers for partner-specific components within the Android stack. * Provide direct technical guidance and oversight to the partners to integrate their solution both within our open-source tree and our production codebase.  * Ensure the partner components are well integrated throughout the software development lifecycle, from bring-up to maintenance. * Collaborate with internal quality and testing teams to validate ODM deliverables, ensuring all partner integrated features meet Fairphone’s high performance and reliability standards. * Triage and resolve complex integration issues across hardware and software boundaries * Own the technical documentation for partner integration projects, ensuring clear communication with both internal stakeholders and external partners. * Manage project timelines and coordinate cross-functional delivery, ensuring that technical milestones for partner integrations align with business objectives and vendor delivery schedules. Key Objectives * Architect and deliver robust software integration solutions tailored for partner requirements. * Serve as the primary technical point of contact for ODMs and partners to ensure alignment on software stack integration, quality standards, and delivery timelines. * Bridge the gap between internal Fairphone & partner requirements and external ODM implementation capabilities, ensuring code integrity and long-term maintainability. This includes leveraging and contributing to our open-source (OSS) AOSP codebase, particularly for Proof of Concepts (PoCs). YOUR SKILLS & EXPERIENCE * You have a degree in computer science, software engineering, computer engineering, or a similar field, or have equivalent experience in one or more of these fields. * You have 5+ years of relevant, hands-on experience in the Android ecosystem.  * You are an expert developer proficient in the core Android and chipset stacks, including C/C++ or Rust, Java and Kotlin. You don't just write code; you architect, test, and implement robust functional requirements. * You have the ability to lead technical discussions and negotiate technical solutions with external partners. * Knowledge of AI/ML integration in Android (e.g., on-device AI, NPU utilization, or relevant frameworks) * You can support building business cases * You are used to working with Legal teams, ensuring Software compliance * You are software quality-driven, used to unit and integration testing, code review tools, and continuous integration. * You are well-versed in open-source development methodologies and thrive in a collaborative environment. * You excel at resolving complex issues, performing root-cause analysis across hardware/software boundaries, and documenting your findings clearly. * Proven experience working directly with Original Design Manufacturers (ODMs) in a technical capacity. * Deep understanding of partner software integration workflows and the unique challenges of customizing Android for specific partner use cases. * You have a solid understanding of Enterprise Firmware Over-the-Air (EFOTA) solutions and the specific challenges of managing update rollouts for large B2B/Enterprise device fleets. * You are familiar with Android Enterprise system update policies (e.g., maintenance windows, mandatory updates). * Specific expertise in any of the various HALs within Android is a bonus, such as camera, audio, WiFi or Bluetooth. * You are proficient with GNU/Linux operating systems. * You are proficient in spoken and written English. Most of us don't have English as our first language, but it's the primary language we use internally, as well as with our teams and partners worldwide. WHAT FAIRPHONE CAN OFFER YOU? * The opportunity to create an impact on the electronics industry around the world. * A diverse work environment full of international, passionate, warm-hearted team members. * 25 paid holidays per year (based on a full-time contract) next to the other public holidays in the Netherlands. You’ll also get a day off on your birthday! Additionally, the longer you stay, the more holidays you get!  * Daily, healthy lunch, organic FairChain coffee, and many more tasty things. * You will join Fairphone’s collective pension scheme, and we will contribute to building your pension. * You will receive a MacBook, Fairbuds,  and a Fairphone as working devices. * Hybrid working model: We are remote-friendly and also contribute up to €250 toward your home office set-up. * Public transport allowance – we fully cover your 2nd-class commute from your home to the office * Bike allowance – We support you with a bike purchase of up to €300, and you’ll also have a yearly repair budget of up to €100! We also cover 23 cents per km for your biking distance from home to the office (or train station) and back! * Grow with us! We encourage you to develop at Fairphone. In addition to €500 for L&D, we’ll support your career goals with coaching (Inuka), workshops, or courses that you can join with your development budget. You will get access to Udemy with unlimited courses and trainings. * Kitchen with beautiful views to the IJ waterfront. * There’s a gym in the building where you can build healthy habits, stay active and have fun with your colleagues, as well as a subscription to our mental & physical well-being services (Inuka & Urban Sports)

ThreatFabric

YOUR MISSION Position: Full-time | 40 hours per week Location: Amsterdam, Netherlands | Work From Home (2–3 days per week in the office) Salary Range: 95.000,- 115.000,- annually About the Job The Mobile SDK Lead combines hands-on software engineering with technical leadership, helping shape the future of ThreatFabric's mobile security platform. The overarching goal is to ensure the Mobile Engineering team delivers scalable, secure and innovative solutions that enable financial institutions worldwide to protect their customers against fraud, malware and emerging cyber threats. As a Mobile SDK Lead at ThreatFabric, you play a key role in guiding the technical direction of our Android and iOS SDKs while remaining actively involved in development. You will work closely with Product, Research, Threat Intelligence and Engineering teams to translate innovative fraud detection capabilities into high-quality mobile security solutions. We are looking for a strong Android engineer with leadership experience who can provide technical guidance, support architectural decisions and help the team grow. Deep Android expertise is essential, while experience with iOS development is considered a strong plus. The Mobile Engineering team currently consists of four senior engineers: two Senior Android Engineers and two Senior iOS Engineers. As Mobile SDK Lead, you will serve as the technical lead for the team, helping drive architectural decisions, maintain engineering standards, mentor team members and ensure alignment across both mobile platforms. This role includes people management, you will play a key role in shaping the team and development of the teammembers alongside of steering technical direction and success of the Mobile Engineering team. Responsibilities Your key responsibilities will include: * Designing, developing, testing and maintaining ThreatFabric's Android SDKs. * Providing technical leadership for a team of four senior mobile engineers across Android and iOS platforms. * Acting as the primary technical authority for Android SDK development within ThreatFabric. * Supporting the team in making architectural and technical decisions. * Reviewing code and ensuring high-quality engineering standards are maintained. * Coaching and mentoring engineers to support their technical growth and development. * Collaborating closely with Product, Research and Threat Intelligence teams to deliver innovative fraud prevention capabilities. * Translating business and customer requirements into scalable technical solutions. * Driving continuous improvements in code quality, development processes and engineering practices. * Developing or improving the tools and frameworks used to deliver ThreatFabric's commercial services. * Monitoring, analyzing and improving SDK performance, stability and maintainability. * Supporting troubleshooting efforts and helping resolve complex technical issues. * Contributing to sprint planning, estimations and technical roadmap discussions. * Staying up to date with Android platform developments, security trends and emerging technologies. What We Offer * A 12-month employment contract with the intention to extend. Subject to mutual satisfaction, this may lead to a permanent position. * A competitive salary, between 95,000 - 115,000 € per year annually including holiday allowance. * 25 holidays per year. * A pension scheme. * 8% holiday allowance (included in annual salary). * A stimulating and supportive work environment that encourages growth and development. * The opportunity to make a meaningful impact in a rapidly growing tech company. * Flexible remote / hybrid work-from-home options to promote work-life balance. * Flexible working hours. * A personal Growth and Development Budget * Active ThreatFabric events and FitFabric bootcamps. * Active knowledge-sharing huddles. YOUR PROFILE Skills & Competencies Technical skills * Bachelor's degree in Computer Science, Software Engineering or a related field. * Extensive experience with Android development using Kotlin and Java. * Proven experience building and maintaining Android SDKs, libraries or complex mobile applications. * Strong understanding of Android architecture, performance optimization and mobile development best practices. * Proven experience acting as a technical lead within engineering teams. * Experience reviewing code and maintaining engineering standards. * Strong understanding of software architecture principles and design patterns. * Experience working in Agile environments (SCRUM / Kanban). * Familiarity with cybersecurity, fraud prevention or mobile security concepts is considered a strong advantage. * Experience with iOS development and Swift is a plus. * Fluent in English, written and spoken. Leadership skills * Ability to guide engineers and drive technical decision-making. * Experience acting as a technical lead for senior engineering teams. * Ability to influence technical direction without direct managerial authority. * Comfortable leading discussions on architecture, engineering standards and technical strategy. * Experience mentoring senior engineers and fostering knowledge sharing across teams. * Leads by example through technical excellence, ownership and collaboration. Creativity and innovation * Able to come up with creative and innovative ideas and voice them in a way they can be applied and implemented. * Continuously seeks opportunities to improve products, processes and engineering practices. Problem solver * Able to spot, analyze, discuss and solve issues. * Voices in a clear way how solutions are reached and the steps taken. * Knows how to differentiate between what is important and what is less important. * Thinks of the work done from a functional, end-user perspective to deliver the most value. * Strong analytical mindset and structured approach to problem solving. Communication and interpersonal skills * Explains complex technical issues clearly to both technical and non-technical audiences. * Strong at cooperating in a team and delivering results together. * Shows tact and organizational sensitivity to bridge possible conflicting interests. * Approachable, good listener, communicates with a positive intent to understand the needs of others and is empathetic towards team members. * Comfortable coaching and mentoring engineers while providing technical guidance. Continuous improvement * A continual effort to improve ongoing workplace practices and products. * Continuously seeking opportunities to improve efficiency and quality of product delivery. * Has a critical attitude which translates into robust and sustainable improvements. Information Security, Business Continuity & Privacy * Has a positive and active attitude towards information security, business continuity and privacy. * Engages in awareness sessions and stays up to date on relevant information (e.g. Teams and Confluence). * Actively reports security incidents to the Risk Officer or supports in solving security incidents when expertise is required. * Acts as a role model and adheres to all applicable policies regarding information security, privacy and business continuity. WHY US? About ThreatFabric At ThreatFabric, we're not just shaping the future of cybersecurity - we're defining it. With our headquartered in the vibrant city of Amsterdam, ThreatFabric stands at the forefront of combating online fraud, mobile malware, and threat intelligence.   Costly online scams, fraud and malware attacks are rampant. Victims’ life savings are stolen, but so are their confidence and trust. On top of this, financials' brand and reputation are damaged. Many lack online visibility to trigger prompt reaction, and the industry faces regulatory reimbursement pressure.   This is why ThreatFabric provides web and mobile security: scam, fraud and malware detection and prevention, and threat intelligence to be proactive. We help the biggest financial brands protect their customers and their reputation in a world where attacks escalate, and trust erodes.   Join Our Dynamic Team Ready to dive into the heart of innovation? Our team is a melting pot of talent, passion, and expertise from all corners of the globe. Behind ThreatFabric's success lies a diverse ensemble of technical experts, data scientists, and thought leaders united by a passion for innovation. With a global perspective and a collaborative spirit, our team leverages innovative technology and thousands of data points to deliver security solutions.   As a scale-up, we embrace a scale-up mentality where flexibility, adaptability, and a dynamic approach are essential.   Our Core Values At ThreatFabric, our culture is defined by three guiding principles: * One Team: Collaboration fuels our success as we work together to tackle complex challenges. * Continuous Excellence: We're committed to pushing boundaries and exceeding expectations in everything we do. * Customers at the Heart: Our customers are not just clients - they're partners. Their success is our priority. Interested? Are you as excited about this opportunity as we are? We can't wait to hear from you! Apply through this Personio link, and let's make innovation happen together! We aim to fill this vacancy in Q3 2026.   What's next? So, you've hit send - what happens now? First, we'll do a screening to ensure we're a good match. If all goes well, you'll be invited for an initial chat with us. Then, there's a second interview, and we may include an assessment to better understand your skills. Ready to take the plunge?   Please note: Pre-employment screening is part of our selection process. We do not accept unsolicited resumes from recruiters or employment agencies.

Awin

Purpose of the Position As a Senior Software Engineer, you will be part of a cross-functional, service-oriented team, working on extending and maintaining our Affiliate Marketing platform. You design and build reliable services by writing clean, secure, and well-tested code, following modern engineering best practices. In this role, you have a significant impact on system efficiency, technical quality, and team effectiveness. You take ownership of meaningful challenges, balancing technical excellence with sustainable product and business needs, and contribute to a collaborative, agile way of working.   The Team You’ll join our Billing & Payments tribe, owning a core domain of the business: how customers are billed and partners get paid. Our engineering culture values pragmatic solutions, automation, strong ownership, and continuous improvement supported by open feedback loops. We are moving towards a cloud‑first architecture with a strong focus on AWS, working with technologies such as Java/Spring, AWS Lambda, Node.js, Kafka, SQL/NoSQL databases, and more. Key Tasks * Work within a small, collaborative team using agile methodologies and practices * Take ownership of applications across the full lifecycle, from design and implementation to operation * Proactively identify improvement opportunities and technical risks, helping shape technical direction * Solve real business problems by translating requirements into scalable technical solutions * Support an effective agile way of working by helping facilitate team ceremonies and workshops * Mentor engineers through code reviews, knowledge sharing, and day-to-day collaboration * Troubleshoot and resolve production issues, ensuring service reliability and operational stability * Communicate effectively in writing and verbally with local and remote colleagues and stakeholders Whilst the above outlines the general expectations of the role, we expect this position to evolve over time, offering opportunities to gain deeper knowledge and experience within the online and affiliate marketing domain. Skills & Expertise * 6+ years of professional software engineering experience * Strong foundation in OOP and comfort working with multiple programming languages, ideally incl. Java/Spring * Passion for clean, maintainable code with a strong understanding of SOLID principles * Hands-on experience designing AWS-based systems, microservices with REST APIs, and event-driven architectures * Focus on engineering quality through code reviews, testing, and test strategy improvement * Responsibility for maintaining CI/CD pipelines for reliable, automated software delivery * Confident use of Git or similar version control systems in a collaborative environment * Solid understanding of relational databases, data modelling, and SQL * Familiarity with non-relational databases like DynamoDB, MongoDB * Basic knowledge of web technologies and modern frontend frameworks, ideally Angular * Proven collaboration in cross-functional teams with Product, UX, and Agile roles * Extensive exposure to agile processes, particularly Scrum * Interest in and practical use of AI tools to augment software development * Experience with financial or billing-related systems is a plus * Basic experience building Node.js services using JavaScript or TypeScript is beneficial   Our Offer * Flexi-Week and Work-Life Balance: We prioritise your mental health and wellbeing, offering you a flexible four-day Flexi-Week at full pay and with no reduction to your annual holiday allowance. We also offer a variety of different paid special leaves. * Remote Working Allowance: You will receive a monthly allowance to cover part of your running costs. In addition, we will support you in setting up your remote workspace appropriately. * Flexi-Office: We offer an international culture and flexibility through our Flexi-Office and hybrid/remote work possibilities to work across Awin regions * Meal Vouchers: You will be supported with a certain net sum to spend it on a variety of lunches. * Health & Wellbeing: The insurance covers several types of health, vision and / or dental treatments for you and for up to one additional family member. * Remote Working Furniture Package: After 3 months of employment, you will be eligible for a furniture package, which should enable you to set up a proper workplace at your remote working location * Appreciation: Thank and reward colleagues by sending them a voucher through our peer-to-peer program. Established in 2000, Awin is proud of our dynamic, social and inclusive culture. Like all businesses, we’ve had to adapt and nurture our culture in a virtual environment. Our virtual ‘Life @ Awin’ hub brings our colleagues from across the globe together for various social activities. Diversity & Inclusion are paramount to us, and we proudly pursue and hire diverse team members. We champion uniqueness and authenticity; this is who we are at our core. Our network of affiliate partnerships are diverse and transparent, as are the employees powering our vision to build the world’s leading open partner ecosystem. We welcome all backgrounds, identities, and experiences. If you need support at any point in the application or interview process, please let us know. Awin is part of the Axel Springer group. Learn more at axelspringer.com/en/, and explore the Axel Springer Essentials here: axelspringer.com/en/inside/the-essentials-what-we-have-adapted-and-why   Apply now to begin the next stage of your career at a progressive company that supports both your professional and personal development.