Senior / Lead Full Stack Developer (.NET/React)

About GapstarsGapstars is a dynamic software development service provider based in the Netherlands, renowned for assembling agile remote teams across Sri Lanka and Portugal. Our talented collective of over 300 TechStars is dedicated to transforming scalable software into high-performance products that define the future. We proudly partner with ambitious tech…

About GapstarsGapstars collaborates with some of Europe’s most innovative tech firms, from disruptive startups to rapidly growing scaleups, assisting them in assembling high-performing remote engineering teams.With our headquarters in the Netherlands and talent hubs in Sri Lanka and Portugal, we boast a vibrant community of 275+ engineers dedicated to tackling real-world challenges through modern technologies. Our teams span various domains, including networking, marketplaces, SaaS, and AI, delivering scalable solutions that yield significant results.If you seek a workplace that champions technical excellence, fosters a strong culture, and provides ample growth opportunities, look no further than Gapstars.About the RoleWe are currently on the lookout for an Associate Technical Lead to become part of our expanding team focused on a cutting-edge, cloud-based platform. This position is ideal for someone with a robust technical background, excellent communication skills, and a solution-oriented mindset.In this role, you will engage with both backend and frontend components, contribute to architectural strategies, and aid in the platform's evolution. We value self-starters who can take initiative and work autonomously within a lean team structure.What You’ll DoDevelop and maintain backend services utilizing C# (.NET 7) and SQL.Enhance frontend applications using TypeScript with frameworks like Blazor or Vue.Design and implement RESTful APIs, ensuring seamless integration between frontend and backend components.Leverage Azure-based cloud services to create scalable and dependable solutions.Work collaboratively with engineers and stakeholders to translate requirements into effective solutions.Engage in live troubleshooting, debugging, and performance optimization efforts.Adapt to evolving tools, frameworks, and processes as the platform progresses.

Join our dynamic R&D team as a Senior Lead Software Engineer (.NET, C#) at Acumatica! In this pivotal role, you will collaborate with a talented team of developers to design, create, and maintain large-scale, cloud-based ERP, CRM, and web applications utilizing Microsoft technologies such as .NET, C#, and MS SQL Server for businesses across the globe.Engage in the architecture, development, and customization of business applications.Create robust data access layers, business objects, and presentation layers.Innovate and develop modular enterprise-grade software solutions.Provide support for legacy code, focusing on optimization and refactoring.Conduct thorough code analysis to identify and resolve functionality errors.Collaborate with development partners on architecture and code review processes.Mentor and guide developers within Acumatica’s development network while promoting the Acumatica ERP framework.

Join our innovative team at AMDT School of Creativity as an Associate Software Engineer specializing in .NET technologies. We are seeking passionate software engineers dedicated to developing scalable enterprise software solutions that enhance our application platforms. You will work across both front-end and back-end development environments, contributing to projects that aim to improve the user experience and add value to our creative initiatives.As part of our dynamic team at 'dottsnpixels', a technology company under the AMDT umbrella, you will collaborate with creative minds and technologists to craft solutions that positively impact people's lives.

About GapstarsGapstars is a leading software development services provider based in the Netherlands, dedicated to building innovative remote teams in Sri Lanka and Portugal for forward-thinking tech companies. With over 300 talented TechStars on board, we are committed to transforming scalable software into high-performance products that drive the future. We partner with ambitious tech companies eager to conquer their markets.About the RoleWe are seeking an experienced Front-End Developer to take the lead in crafting modern, high-performance, and maintainable web application interfaces. You will leverage your expertise in React, TypeScript, and Tailwind CSS to create scalable UI components and features. This position requires a keen focus on user experience, client-side performance optimization, and effective integration with back-end services.Key ResponsibilitiesDesign and develop responsive, reusable UI components utilizing React, TypeScript, and Tailwind CSSImplement effective data fetching strategies using TanStack QueryManage client-side state with ZustandEnhance client-side performance and optimize page load speedCollaborate closely with back-end engineers, designers, and product managersEnsure UI accessibility, responsiveness, and compatibility across various browsersWrite clean, maintainable code adhering to modern front-end best practicesEngage in code reviews and contribute to front-end architectural decisions

About GapstarsGapstars, a premier software development services provider located in the Netherlands, specializes in creating remote, agile teams in Sri Lanka and Portugal for pioneering technology firms. With over 300 talented TechStars and innovative professionals, we transform scalable software into high-performance products that drive the future. Our partners include ambitious tech companies eager to dominate their markets.About the RoleWe are seeking a Front-End Developer who will be instrumental in crafting modern, efficient, and sustainable web application interfaces. This role demands extensive collaboration with React, TypeScript, and Tailwind CSS to build scalable UI components and functionalities. A keen focus on user experience, client-side performance enhancement, and seamless backend integration is essential.Key ResponsibilitiesDesign and implement responsive, reusable UI components using React, TypeScript, and Tailwind CSSDevelop effective data fetching methodologies utilizing TanStack QueryOversee client-side state management employing ZustandEnhance client-side performance and optimize page load timesCollaborate closely with back-end engineers, designers, and product managersGuarantee UI accessibility, responsiveness, and cross-browser compatibilityProduce clean, maintainable code that adheres to modern front-end best practicesEngage in code reviews and contribute to the architectural decisions of the front-end

The Director of Learning and Development plays a pivotal role in shaping and executing the organization’s comprehensive learning strategy aimed at enhancing workforce capabilities, optimizing performance, and driving business expansion. This leadership position oversees all aspects of training, leadership development, and talent management initiatives throughout the organization.Key Responsibilities1. Learning Strategy & PlanningCraft and execute an organization-wide Learning and Development strategy that aligns with overall business objectives.Assess and identify current and anticipated skill gaps within the workforce.Create long-term capability frameworks and tailored learning roadmaps.2. Leadership & Talent DevelopmentDesign and implement leadership development programs catering to all tiers of management.Facilitate succession planning and foster the development of high-potential employees.Collaborate with senior leadership on initiatives aimed at talent growth.3. Training & Program ManagementOversee the design and execution of training programs, including technical skills, soft skills, and compliance training.Ensure the effective implementation of onboarding and continuous learning initiatives.Manage relationships with internal and external training providers.4. Digital Learning & InnovationImplement and maintain Learning Management Systems (LMS) and other learning technologies.Advocate for e-learning, microlearning, and blended learning approaches.Drive innovation in learning methodologies and tools.5. Performance & Impact MeasurementEstablish Key Performance Indicators (KPIs) to assess the effectiveness and return on investment (ROI) of training programs.Analyze learning data to provide actionable insights to leadership.Continuously enhance programs based on participant feedback and measurable outcomes.6. Stakeholder ManagementEngage with business leaders to understand and address capability requirements.Work collaboratively with HR functions (Talent, Performance, Organizational Development).Influence leadership to cultivate a culture of learning across the organization.7. Team LeadershipLead and mentor the Learning and Development team.Oversee budget management and resource allocation.Develop a high-performing learning organization.

Join Minor International as a Learning and Development Manager, where you will play a pivotal role in shaping the training strategies and professional development programs for our dynamic workforce. You will collaborate with various departments to identify training needs, design engaging learning experiences, and implement effective training solutions that drive employee performance and organizational success.

Join Us at GapstarsAt Gapstars, we collaborate with Europe's most innovative tech companies, from groundbreaking startups to rapidly growing scaleups. Our mission is to assemble high-performing remote engineering teams that tackle real-world challenges with cutting-edge technologies. With our headquarters in the Netherlands and talent hubs in Sri Lanka and Portugal, we boast a vibrant community of over 275 engineers dedicated to delivering impactful solutions across various domains such as networking, marketplaces, SaaS, and AI. If you seek an environment that fosters technical excellence, a robust culture, and opportunities for growth, Gapstars is the place for you.About the PositionWe are in search of a hands-on Senior Java Developer (ATL/TL level) to take the reins of a complex legacy Java application landscape, currently operating on approximately 20 servers. This environment incorporates an older version of GlassFish and lacks sufficient documentation. Your primary challenge will be to understand, document, and maintain application-level integrations, stabilize the platform, and lay the groundwork for future modernization and migrations.This role emphasizes development and integration ownership rather than operations, requiring a strong focus on technical discovery, documentation, and stewardship of legacy platforms.Key ResponsibilitiesTake ownership of a legacy Java platform from both an application and integration perspective.Discover, map, and document application dependencies, integration points, data flows, interfaces, deployment topology, and key runtime/config assumptions.Analyze and resolve complex production issues related to Java application behavior, performance bottlenecks, runtime issues, integration failures, and stability concerns.Gain familiarity and build confidence in the legacy runtime environment, including GlassFish configuration and deployments.Enhance maintainability through clear technical documentation, diagrams, runbooks, improved logging/observability, and incremental refactoring when appropriate.Support and guide engineering standards as an ATL/TL profile through code reviews, mentoring, and providing technical guidance on integration design and legacy-safe improvements.Collaborate closely with stakeholders to foster a shared understanding of the platform's architecture and future direction.

About GapstarsAt Gapstars, we collaborate with Europe’s most ambitious tech companies, from groundbreaking startups to rapidly scaling enterprises, to help them build exceptional remote engineering teams.With our headquarters in the Netherlands and talent hubs in Sri Lanka and Portugal, we boast a diverse team of over 300 engineers dedicated to tackling real-world challenges with cutting-edge technologies. Our projects span various domains, including networking, marketplaces, SaaS, and AI, delivering scalable solutions that generate impactful results.If you seek a workplace that champions technical excellence, fosters a strong culture, and offers ample opportunities for growth, you will find your place at Gapstars.Role Overview The Learning & Development Lead will design and manage a modern, scalable ecosystem that enhances Gapstars’ “people product” and directly contributes to client success. This position will revolutionize training into a systematic “Operating System,” establishing defined role-based pathways, comprehensive manager support, and measurable performance metrics. The ultimate goal is to create a high-impact, low-administration model that strengthens our community's capabilities and empowers our leaders while providing tangible evidence of skills that facilitate our commercial growth.Key Responsibilities1. Academy Design & Learning PathwaysDevelop and implement the "Gapstars Academy" with a reliable quarterly schedule for employees and leaders.Create standardized, role-specific learning pathways for key groups (Team Leads, Community Specialists, Engineers) while remaining adaptable to specific client or project needs.Design structured learning journeys that encompass the entire employee lifecycle: from onboarding to performance support and future career development.2. Leadership Development & Manager SupportCreate and implement practical toolkits and learning initiatives focused on essential leadership skills: providing feedback, detecting burnout, and navigating difficult conversations.Facilitate effective coaching and mentoring strategies to elevate leadership capabilities across the organization.

About GapstarsAt Gapstars, we collaborate with some of Europe’s most innovative tech enterprises, ranging from disruptive startups to rapidly expanding scaleups. Our mission is to aid them in constructing high-performing remote engineering teams.With headquarters in the Netherlands and talent hubs in Sri Lanka and Portugal, we boast a workforce of over 275 engineers dedicated to solving real-world problems through cutting-edge technologies. Our teams operate in various sectors, including networking, marketplaces, SaaS, and AI, delivering scalable solutions that lead to impactful results.If you seek a workplace that values technical excellence, fosters a strong culture, and offers ample opportunities for growth, Gapstars is the right place for you.About the RoleAre you an experienced Full Stack Engineer passionate about developing innovative AI-driven applications in the healthcare sector? Do you excel in dynamic environments that challenge you to create scalable and high-performance software solutions? If so, this opportunity is tailored for you!The OpportunityAs a seasoned Full Stack Engineer, you will engage in the design, development, and deployment of scalable applications that support AI-driven solutions. Collaborating closely with engineers, designers, and product teams, you will optimize both front-end and back-end systems for peak performance and reliability.Key ResponsibilitiesDevelop front-end components using contemporary JavaScript frameworks such as React.Design, construct, and enhance scalable back-end services utilizing Python (Flask, FastAPI, or Django).Implement and refine RESTful APIs to ensure seamless integration with front-end components.Design and optimize databases for performance and scalability, primarily using PostgreSQL.Automate CI/CD pipelines and manage AWS cloud deployments.Participate in code reviews and advocate for development best practices.Troubleshoot and resolve production issues, ensuring system reliability.Collaborate with cross-functional teams to translate business requirements into technical solutions.

Join our dynamic team at Dijital Team Pty Ltd as a Sales Development Representative. In this role, you will be pivotal in identifying new business opportunities and building strong relationships with potential clients. Your exceptional communication skills will enable you to effectively engage with prospects, understand their needs, and articulate the value of our services. If you are a motivated self-starter with a passion for sales and a desire to grow in a fast-paced environment, we encourage you to apply!

About GapstarsGapstars collaborates with some of Europe’s most innovative tech companies, ranging from disruptive startups to rapidly scaling scaleups, to help them build high-performing remote engineering teams.With our headquarters in the Netherlands and talent hubs in Sri Lanka and Portugal, we boast a team of over 275 engineers who are passionate about tackling real-world challenges using cutting-edge technologies. Our teams are engaged across various domains, including networking, marketplaces, SaaS, and AI, delivering scalable solutions that drive impactful results.If you are seeking a workplace that embodies technical excellence, a vibrant culture, and ample growth opportunities, look no further than Gapstars.About the RoleWe are on the lookout for a Senior Generative AI / LLM Developer to act as a strategic technical lead within our Colombo Hub. Your primary responsibility will be to drive the technical evolution of our AI suite, particularly by leading the migration of existing n8n workflows into scalable, agentic code using Python and TypeScript, ensuring the long-term resilience of our products.Core ResponsibilitiesTechnical Advisory: Offer constructive feedback and consultation to the AI Product Owner regarding architecture and feasibility.Workflow Evolution: Spearhead the transition from low-code automation to robust, code-based AI agents to facilitate scaling.Product Development: Create and maintain the technical foundation for customer-facing applications requiring AI automation through Bedrock.Platform Management: Design and oversee infrastructure and pipelines for reliable data processing and storage of insights.

About GapstarsAt Gapstars, we collaborate with Europe’s most innovative tech companies, from groundbreaking startups to rapidly expanding scaleups, to create high-performing remote engineering teams.With our headquarters in the Netherlands and talent hubs in Sri Lanka and Portugal, our team of over 275 engineers tackles real-world challenges using the latest technologies. We operate across various domains, including networking, marketplaces, SaaS, and AI, delivering scalable solutions that yield significant outcomes.If you are seeking a workplace that fosters technical excellence, a robust culture, and opportunities for growth, you’ll find a home at Gapstars.About the RoleAre you a talented Full Stack Engineer excited to develop innovative AI-driven applications in the healthcare sector? Do you excel in an environment that pushes you to create scalable and high-quality software solutions? If so, this position is tailored for you!The OpportunityAs an experienced Full Stack Engineer, you will be responsible for designing, developing, and deploying scalable applications that empower AI-driven solutions. You will collaborate with engineers, designers, and product teams to ensure both front-end and back-end systems are optimized for peak performance and reliability.ResponsibilitiesDesign and develop scalable back-end services using Python (Flask, FastAPI, or Django).Create front-end components with modern JavaScript frameworks like React.Implement and optimize RESTful APIs for seamless front-end integration.Design and optimize databases for performance and scalability (PostgreSQL).Automate CI/CD pipelines and manage AWS cloud deployments.Engage in code reviews and enforce best practices for software development.Diagnose and resolve production issues to ensure system reliability.Work closely with cross-functional teams to translate business needs into technical solutions.

Homey.co.uk is an innovative proptech platform dedicated to simplifying the home-moving process by seamlessly connecting buyers, sellers, estate agents, and mortgage brokers. We collaborate with numerous estate agents and brokers throughout the UK to create a streamlined experience for our clients.We are on the lookout for a dynamic and driven Sales Development Representative (SDR) to expand our partner network and invigorate our sales pipeline.As an SDR at Homey, you will play a pivotal role in our growth initiatives. Your main focus will be to identify, engage, and qualify estate agents and mortgage brokers, scheduling high-quality meetings for our Business Development Managers.Key ResponsibilitiesIdentify and engage with estate agents and mortgage brokers across the UK.Conduct outbound outreach through various channels including phone, email, and LinkedIn.Qualify leads while gaining insight into partner needs and challenges.Schedule meetings and demonstrations for the Business Development Manager and sales teams.Maintain precise records in our CRM system.Follow up on inbound leads generated from marketing efforts.Collaborate closely with Business Development Managers to ensure smooth transitions.Consistently meet activity, meeting, and pipeline goals.

Join Homey as a Business Development Manager and take the lead in identifying, onboarding, and nurturing relationships with estate agents, mortgage brokers, and panel managers. In this role, you will serve as a trusted advisor, empowering partners to fully leverage the value of Homey’s innovative products and services while driving significant revenue growth.This position is ideal for individuals who excel in a hands-on, field-oriented environment, with a passion for relationship-building and closing deals.

Join The Gifted Company as a Remote Java Developer and work on innovative projects that shape the future of technology. We are looking for a motivated individual who is well-versed in Java, Spring Boot, SQL, Cloud technologies, and Kubernetes. This is a fantastic opportunity for someone looking to further their career in a dynamic and supportive environment.

Gapstars, headquartered in the Netherlands, builds agile software teams in Sri Lanka and Portugal for scaling tech companies. With a team of over 300 technology professionals, Gapstars delivers high-performance products by focusing on collaboration and innovation throughout every project. Role overview The Technical Lead - PHP/React.js will play a central role in designing, developing, and maintaining product features. This position blends hands-on coding with responsibility for code quality and process improvement. Working within agile, cross-functional teams, the Technical Lead guides engineers from concept to deployment, ensuring solutions are reliable, scalable, and easy to maintain. Key responsibilities Feature ownership and delivery Lead features from initial design through production release and ongoing maintenance. Translate functional and technical requirements into scalable solutions. Deliver features on schedule while meeting internal quality standards. Work closely with Product Owners, designers, and engineers at every stage. Full-stack development Develop backend features with Laravel and frontend features with Next.js as needed. Write clean, reusable code in PHP and TypeScript. Adhere to architectural guidelines and contribute to technical improvements. Support system integrations to ensure smooth communication between components. Quality and reliability Create and maintain unit and integration tests to support quality goals. Monitor and improve performance of existing features. This role is based in Colombo, Western Province, Sri Lanka, and is ideal for those who enjoy both technical leadership and hands-on development across PHP and React.js stacks.

About GapstarsGapstars, headquartered in the Netherlands, specializes in software development services, creating agile remote teams in Sri Lanka and Portugal tailored for cutting-edge tech companies. With over 300 passionate TechStars, we focus on transforming scalable software into innovative performance products that shape the technology landscape. Our partners are ambitious tech enterprises aiming to dominate their respective markets.About the RoleWe are seeking a highly skilled Back-End Developer to architect, build, and sustain robust back-end services and APIs. This pivotal role demands extensive proficiency in Python and Django, along with expertise in relational data modeling, caching strategies, and distributed systems. You will play a crucial role in designing back-end components, ensuring data integrity, and establishing secure user authentication and authorization mechanisms.

About GapstarsGapstars is a leading software development services provider headquartered in the Netherlands, specializing in creating innovative, agile remote teams in Sri Lanka and Portugal. Our mission is to empower ambitious tech companies with top talent, transforming scalable software into high-performance products that are set to redefine the industry landscape.About the RoleAs a Full Stack Developer, you will play a pivotal role in enhancing our internal tools and applications. Your primary focus will be to elevate user experience while ensuring we consistently deliver impactful results. Our commitment to leveraging cutting-edge technology enables us to continually iterate and enhance features, aiming for nothing short of excellence.Key Responsibilities1. Development & MaintenanceDesign, develop, and maintain internal tools and applications, including web scraping systems.Create scalable solutions for data collection and processing from diverse sources.Engage throughout the product lifecycle: from design and development to testing and deployment.2. Production Reliability & Incident ManagementProactively investigate and resolve complex production issues from start to finish.Debug across backend systems, databases, infrastructure, and integrations.Address problems directly in the codebase, ensuring sustainable solutions.Enhance monitoring, logging, and observability for better performance.3. System Enhancements at ScaleIdentify and address performance bottlenecks and scalability challenges.Optimize APIs, queries, and workflows for improved efficiency.Enhance automation systems, including email, integrations, and scraping tools.Minimize technical debt through structural improvements.