Senior .NET Backend Developer

The R&D team at Companial is seeking a talented Senior .NET Backend Developer to enhance our skilled team. We are committed to delivering top-notch quality by employing best practices and advanced tools. If you are passionate about personal growth, eager to innovate, and willing to help improve our existing systems for our clients, you are exactly who we wan…

Join our dynamic international business group specializing in IT and TELCO product development and service delivery. Our expanding team in Vilnius is driven by results, independence in decision-making, and a commitment to proactive collaboration. We have nurtured a culture of trust and professionalism over the years. We are currently seeking passionate .NET Developers to help us enhance our services and contribute to our clients' success globally. Be part of our friendly and dedicated team!

Join the forefront of cybersecurity innovation!Are you a proactive problem-solver ready to explore new horizons? Become a vital member of the team powering Threat Protection Pro, the groundbreaking NordLynx protocol, and the fastest VPN in the world—tools that empower individuals to reclaim their privacy, security, and control online.Your contribution? Enabling millions to restore their online security, privacy, and data ownership.Key ResponsibilitiesEnhance the NordVPN Windows desktop application, ensuring all features function seamlessly;Collaborate with a multidisciplinary team of developers, designers, QA specialists, and a Product Owner to innovate and maintain software for our globally recognized product;Utilize Microsoft’s tools and technologies to expand and refine our product’s capabilities—it's all about the code!Engage in a team-oriented approach to software development and problem resolution;Employ technologies and programming languages beyond .NET when necessary.Essential Qualifications4+ years of professional experience in software development as a .NET (C#) developer.Strong grasp of object-oriented programming principles.Familiarity with WPF, UWP, or similar XAML-based frameworks.Solid understanding of native Windows programming principles and APIs.Proficient in source code analysis and optimization techniques.Experience with unit testing and general software testing practices.Ability to swiftly adapt to changes and effectively tackle edge cases.Technologies You Will Utilize.NET/C#;XAML (WPF);MVVM;IPC;OpenSearch.

Join the NordLayer team as we revolutionize cybersecurity for businesses worldwide.NordLayer offers a flexible, toggle-ready platform that empowers modern teams to work seamlessly, free from security concerns. Trusted by over 11,000 companies globally, our solution integrates effortlessly into any tech stack, safeguarding users wherever they are.Your Role: Play a crucial part in helping businesses maintain robust, forward-looking network security.As part of our Desktop Applications department, you'll collaborate with a dynamic team of skilled engineers to develop innovative cybersecurity networking solutions tailored for businesses. We foster a collaborative environment to tackle complex challenges with a strong focus on security.

Join the forefront of digital security with the world's leading VPN provider. Are you a proactive problem-solver ready to shape the future of online privacy? Become a vital part of our innovative team that developed Threat Protection Pro, the NordLynx protocol, and the fastest VPN service available—solutions that empower users to regain control over their online security and data privacy.What will you achieve? You will contribute to helping millions of users reclaim their online security, privacy, and data integrity.

Join NordLayer as we innovate cybersecurity solutions that grow with our clients.Our platform is designed for seamless integration into any tech stack, enabling modern teams to excel without the burden of security concerns. With the trust of over 11,000 global companies, NordLayer provides robust protection for users across the globe.Your contribution? Ensure businesses remain secure and progressive with our advanced network security solutions.As a member of the Desktop Applications team, you will collaborate with a dynamic group of skilled engineers dedicated to developing next-generation secure networking solutions tailored for businesses. We emphasize teamwork and innovative thinking, focusing on security while tackling complex challenges.

Join our innovative R&D team as a Senior or Mid-Level Software Engineer, where you will take charge of enhancing and maintaining existing device programming tools tailored for automotive applications. Your expertise in device communication and firmware programming will be essential, as our software directly interfaces with hardware for firmware flashing, updates, and configuration.Your primary responsibility will involve the modernization of our legacy Delphi 7-based device programming tools, transitioning them to a robust C# / .NET architecture. These applications are pivotal for programming, updating, and configuring automotive device firmware while ensuring reliable communication through various interfaces. Your goal will be to establish a clear, maintainable, and scalable architecture that supports long-term development.Key Responsibilities:Own and enhance existing device programming tools for hardware device configuration and updates.Lead the migration of legacy tools from Delphi to a modern C# / .NET framework.Design, maintain, and optimize software solutions for device communication and firmware workflows.Implement and manage communication layers for hardware devices via Serial (COM), USB, and other interfaces.Refactor existing codebases to ensure clarity, maintainability, and scalability.Diagnose and resolve complex issues related to device communication and firmware interactions.Collaborate closely with firmware, hardware, and R&D engineers to ensure effective device programming and diagnostics.

About the CompanyReiz Tech is not just another IT company; we are a dynamic IT service provider dedicated to supporting our clients throughout their entire business lifecycle. With an expanding global footprint across over 30 countries and regions, we focus on delivering bespoke software development, comprehensive application support, maintenance, and much more. Our skilled team operates remotely, and our decentralized leadership structure fosters enhanced communication, agile decision-making, and flexibility.About the RoleWe are seeking an experienced Senior PHP Developer to spearhead the technical aspects of our projects. In this role, you will collaborate closely with backend developers within a Scrum team, guiding the development process and ensuring quality deliverables. Exceptional communication skills are crucial, as you will be responsible for mentoring team members and conveying technical concepts clearly.Applications are currently being accepted from Lithuania only.About the ClientWe are working with one of the largest global shipping operators.About the ProjectJoin our innovative team and contribute to the development of a groundbreaking cargo tracking system that promises to transform existing manual processes and external systems. This project aims to provide users with seamless access to all their information through a centralized platform.ResponsibilitiesStay informed about the latest technologies and make architectural decisions to maintain product quality.Optimize code and implement best programming practices.Develop features that align with business requirements while ensuring a healthy, sustainable, and reliable codebase.Mentor junior team members.Engage in code reviews and collaborate with the team to elevate internal coding standards.Deliver high-quality, maintainable code while continuously learning and tackling technical challenges.Demonstrate discipline and motivation, taking responsibility for all development tasks.

Join Wargaming.net as a Game Developer and contribute to the iconic World of Tanks. We are looking for passionate developers who thrive in a creative environment and are eager to push the boundaries of gaming technology. You will work alongside a talented team to design, implement, and optimize gameplay features that enhance the player experience.

Join scale3c as a Senior Flutter Developer and take the next step in your career while working remotely. We are seeking a passionate and skilled developer with expertise in Flutter to enhance our innovative mobile applications. This role offers the flexibility of a fully remote position, allowing you to balance your professional and personal life effectively.

Wargaming is looking for a Server Developer to join the team in Vilnius and contribute to the ongoing development of World of Tanks. This position involves working with the full technology stack to support and enhance the game. Role overview This role focuses on building and maintaining server-side systems that power World of Tanks. The Server Developer will take part in shaping features and ensuring a reliable experience for players. Key responsibilities Work across the full technology stack to develop and support server features for World of Tanks Take ownership of assigned projects from design through implementation Collaborate with other developers to deliver a strong in-game experience for the player community Location This position is based in Vilnius.

Oxylabs creates proxy and web data scraping solutions for a diverse client base, including Fortune 500 companies. The company’s team of over 500 professionals tackles complex data challenges and supports large-scale operations. Role overview This Mid-Level PHP Developer position is based in Vilnius. The role centers on maintaining and enhancing the infrastructure that powers Oxylabs’ global data services. The systems managed in this role process significant volumes of data for clients worldwide, requiring careful attention to reliability and performance. Key systems and technologies Ceph storage handling over 6 petabytes of data Monthly data traffic exceeding 60 petabytes Service infrastructure managing more than 300,000 requests per second Kafka streaming with 500,000 messages per second This role focuses on supporting and improving the core systems that keep data flowing smoothly at scale.

Join our dynamic team as a Senior Business Development Manager at Oxylabs, where you will spearhead our entrepreneurial initiatives. Your primary responsibility will be to seek innovative pathways for forging new partnerships and optimizing the potential of existing ones. As a key contributor to product development, you will thrive in our fast-paced, data-centric environment.We are excited about unlocking new opportunities, and we believe that you are the missing piece to our puzzle!

Join our dynamic team at AdTech as a Senior PHP Developer specializing in cybersecurity tools. In this role, you will leverage your extensive experience in PHP development to design, implement, and maintain innovative security solutions that protect our clients' digital assets. You will collaborate with cross-functional teams to enhance our product offerings and ensure we remain at the forefront of cybersecurity technology.

Join our dynamic internal IT team at scale3c, comprised of approximately 10 talented software developers, a creative web designer, and our visionary CTO. In this role, you will thrive in a product-driven environment where the focus is on innovation, allowing you to build exciting new products and features from the ground up with minimal legacy maintenance.

Join our dynamic team of over 500 experts dedicated to developing innovative proxy and web data scraping solutions for some of the world's most renowned businesses, including Fortune 500 companies.What Awaits You:You will tackle intricate challenges while managing our infrastructure that handles over 60PB of data traffic monthly. Here are some impressive metrics:- 6PB of Ceph storage- 60PB of monthly data traffic- Over 300,000 service requests processed per second- More than 500,000 Kafka messages streamed per secondBe part of a product utilized by over 15 million users globally and make a significant impact from your very first day. Experience rapid development cycles where your contributions go live swiftly—no delays, just continuous delivery and visible outcomes.Work with a contemporary tech stack, utilizing the latest PHP frameworks and databases, in a fully containerized environment that has leveraged Kubernetes in production for over seven years. Engage in daily big data challenges, explore Go through real projects, and help define the engineering standards and best practices we adhere to.

Join our dynamic team of over 500 skilled professionals at Oxylabs, where we create innovative proxy and web data scraping solutions for some of the most recognized brands worldwide, including Fortune 500 companies.What You Can Expect:As a Mid-Level PHP Developer, you will tackle intricate challenges and manage our extensive infrastructure, which supports over 60PB of monthly data traffic. Your role will involve working with significant metrics, such as: - 6PB+ Ceph storage - 60PB+ monthly data traffic through our systems - 300k+ service requests processed per second - 500k+ Kafka messages streamed per second

Join the forefront of payment processing innovation with Nuvei, a dynamic Canadian fintech company dedicated to empowering businesses globally.At Nuvei, we provide cutting-edge, modular, and scalable technology that allows our clients to seamlessly accept next-generation payments, access a variety of payout options, and utilize comprehensive banking services including card issuing and risk management. With a presence in over 200 markets, local acquiring in 50 markets, and support for 150 currencies and 700 alternative payment methods, we equip businesses with the tools and insights they need to thrive locally and internationally.Your Mission:As a Full Stack Developer in our R&D department, you will play a key role in developing high-quality user interfaces and enhancing client-side experiences, while also maintaining a deep understanding of our back-end systems.The Product:Nuvei Digital Accounts serves as a high-performance platform for global enterprise banking, functioning as an Electronic Money Institution (EMI) and Crypto-Asset Service Provider (CASP). This centralized hub facilitates multi-currency treasury management, real-time foreign exchange, and crypto transfers, bridging traditional financial systems with blockchain-based solutions to manage over 20 currencies and digital assets within a regulated framework.Key Responsibilities:Design and implement application features with a focus of 80% on front-end and 20% on back-end, ensuring seamless integration between both.Develop secure, AI-driven features utilizing both external services and internal microservices.Stay abreast of emerging technologies and methodologies.Lead the creation of modern, responsive user interfaces using Vue.js, ensuring exceptional UI/UX standards.Engage in rapid development cycles using dynamic languages and agile methodologies.

Location: Vilnius Role: Mid-Senior PHP/Go Developer About Oxylabs Oxylabs brings together more than 500 professionals focused on building proxy and web data scraping solutions used by many of the world’s top companies, including several Fortune 500 organizations. What You'll Do Work on complex technical challenges and support an infrastructure that moves over 60PB of data traffic each month. The scale is significant: 6PB+ of Ceph storage 60PB+ monthly data traffic 300,000+ service requests per second 500,000+ Kafka messages streamed per second Contribute to a product with more than 15 million users worldwide. New features and improvements go live quickly, so your work has visible impact from the start. The team maintains a rapid development cycle with continuous delivery. Tech Stack and Environment Work with the latest PHP frameworks and databases in a fully containerized setup. Kubernetes has been in production here for over seven years. Expect to tackle big data projects daily, use Go in real-world scenarios, and help shape engineering standards and best practices.

Role overview Psicro is looking for a Full Stack Developer with a focus on AI Solutions to join the team in Vilnius. This position centers on building technology to support new artificial intelligence products. What you will do Design, develop, and implement software for projects driven by AI Work on both front-end and back-end systems Collaborate with team members to deliver solutions that fit client needs Why join Develop technical skills in a company that prioritizes AI innovation Take part in projects that make a difference for clients Join a supportive team based in Vilnius, a growing tech hub