Senior Backend Engineer (AI-Driven)

Job Overview:Join Pragmatike as we partner with a pioneering European deep-tech company dedicated to revolutionizing cloud computing. This firm is at the forefront of developing a decentralized and energy-efficient alternative to conventional cloud services, leveraging distributed bare-metal infrastructure and sophisticated automation to provide high-perform…

Our Mission and VisionAt Solidgate, our mission is straightforward: to empower exceptional entrepreneurs in building outstanding internet companies. We exist to support the builders — those who are shaping the digital economy — with the robust financial infrastructure they need. Our ambitious goal is to become the leading payments orchestration platform globally.About the Team and RoleWe are in search of a talented Backend Engineer eager to transition to Go and join our team dedicated to creating products that minimize fraud-related risks for our clients. You'll be working on our innovative Representment product, which has the potential to save our merchants significant amounts of money.If you excel in a high-performing team that prioritizes speed, ambition, and ownership, then this is your opportunity. Our culture is rigorous, transparent, and highly collaborative. It may not be for everyone — but if you're ready to elevate your game alongside equally motivated colleagues, this is where you belong.Explore our technology stack here.Your ResponsibilitiesDevelop dispute management systems. Create services that gather dispute data from payment systems and convert it into actionable insights for merchants.Integrate with leading global payment providers. Collaborate with platforms like Stripe, Adyen, and PayPal.Build scalable financial infrastructure. Contribute to systems that facilitate invoicing, billing, reconciliation, and other financial functions.Launch new payment products. Collaborate with partners such as Visa, Mastercard, and AMEX to deliver innovative solutions.Enhance the Representment product. Develop APIs and interfaces that allow merchants to upload dispute evidence and submit it directly to payment schemes.Ideal Candidate ProfileDemonstrates strong ownership and a clear technical perspective (you have mastered one backend language and are ready for a new challenge).Produces production-ready systems, not just individual features.Possesses a solid understanding of high-load system design.Confident in testing (unit tests, integration tests).

TENTENS Tech is a partner IT company of SKELAR, a Ukrainian venture builder focused on creating international tech businesses.We develop social discovery platforms for over 20 million users worldwide, driven by deep expertise in analytics, high-load systems, and performance marketing.Our team at TENTENS Tech consists of over 250 professionals, each acting as a CEO in their role and contributing to collective success. We adhere to the 10/10ths philosophy: we stay focused on our goals, ask the right questions along the way, and never settle for "good"—we strive for excellence and beyond. If you resonate with this description and are ready to accelerate with us, let's connect!We are currently seeking a Backend Engineer (PHP/Go) to help elevate our performance standards.

Join Our Mission at SolidgateAt Solidgate, we are dedicated to empowering visionary entrepreneurs to create unparalleled internet companies. Our goal is to provide the essential financial infrastructure that innovators require to thrive in the digital economy. We are on an ambitious journey to establish ourselves as the leading payments orchestration platform globally.About Your RoleWe are seeking an enthusiastic and business-oriented Go Engineer to contribute to our dynamic team focused on developing solutions that mitigate fraud-related risks for our clients. You will play a pivotal role in launching our cutting-edge Representment Product, which has the potential to save our merchants substantial amounts of money.If you excel in a fast-paced environment that values high performance and ownership, you will find your place here. We foster a culture of transparency and collaboration, pushing each other to elevate our standards daily.Discover our technology stack here.Your ResponsibilitiesDevelop the Dispute module for efficient data collection from payment systems and enhance clarity for clients.Implement the Representment module by creating user-friendly interfaces and APIs for merchants to submit evidence to payment schemes.Integrate with major global payment providers such as Stripe, Adyen, and PayPal.Launch new products in partnership with Mastercard, Visa, and AMEX.Build the financial infrastructure, focusing on invoicing, billing, and reconciliation at scale.What We Are Looking ForAt least 3 years of experience in backend development.Minimum 1.5 years of experience with Go programming language.Proficient in PostgreSQL database management.Demonstrated experience in working with microservices architecture.Strong understanding of designing high-load systems.Experience with comprehensive test coverage, including unit, integration, functional, and end-to-end testing.A proactive, results-oriented approach to problem-solving.Ability to take initiative and make sound decisions.

TENTENS Tech is a strategic partner of SKELAR, a Ukrainian venture builder dedicated to developing international tech businesses.We create social discovery platforms for over 20 million users globally. Our pace and scale are supported by deep expertise in analytics, high-load systems, and performance marketing.Today, the TENTENS Tech team consists of more than 250 professionals, each acting like a CEO in their role and contributing to our collective success. We operate with a 10/10ths mindset: aiming for excellence, asking the right questions along the way, and never settling for 'good enough'—we strive for maximum impact and beyond. If this resonates with you and you’re ready to accelerate with us—let’s connect!We are currently seeking a Backend Team Lead to help elevate our results.

Location: Fully remote (EMEA timezone)Start date: ASAPLanguages: Fluent English requiredIndustry: Cloud Computing / AI / European Deep-Tech SaaSAbout the RoleJoin Pragmatike, a forward-thinking European deep-tech company dedicated to creating a decentralized, energy-efficient alternative to traditional cloud providers. Their innovative platform leverages distributed bare-metal infrastructure and advanced automation, offering sovereign, high-performance computing solutions tailored for modern workloads.We are on the lookout for a Lead Backend Engineer (with a Staff-level mindset) who possesses deep expertise in Go and production-grade peer-to-peer (P2P) systems. This highly technical position will focus on distributed systems, system-level programming, and performance-critical backend services.In this role, you will significantly contribute to designing and evolving the backend architecture of a decentralized cloud platform, collaborating closely with infrastructure, product, and DevOps teams. A strong sense of autonomy, ownership, and architectural judgment will be essential for success.

Flosum builds a Salesforce-native DevOps and data protection platform for enterprise Salesforce teams, including many in the Fortune 5000. In a market where pipeline growth, customer retention, and product speed matter more than ever, Flosum is hiring its first AI Go-to-Market Engineer. This remote role (based in Ukraine) will shape, launch, and refine AI systems and automation across every stage of the revenue process, from first outreach to closing deals and growing accounts. Role Overview This position goes well beyond prompt engineering. The focus is on building and maintaining real AI systems that drive measurable business results. The AI Go-to-Market Engineer will work closely with revenue operations, sales, marketing, and customer success teams. The goal: multiply the productivity of Flosum’s Go-to-Market organization by deploying AI that accelerates deal flow, increases revenue, and reduces churn. This role reports directly to the CEO. What You Will Do Deploy and train at least one AI Sales Development Representative (SDR) agent within the first month. This agent may focus on inbound qualification (using platforms like Qualified or Marketo) or outbound prospecting (through Outreach). Continue to improve its performance until it outpaces the lowest-performing human BDRs. Build an AI-powered inbound qualification system that captures, scores, and routes every website visitor and form submission in real time. Ensure no lead goes unaddressed and Account Executives (AEs) only engage with prospects who are ready to buy. Double the revenue-generating time of each AE (from about 25% to over 50%) by automating tasks such as CRM updates, call summaries (via Gong), follow-up sequences, proposal drafts, and pipeline management. Remove as much administrative overhead as possible. Design and implement an AI integration layer across Flosum’s Go-to-Market stack (Salesforce, Marketo, Outreach, Qualified, Gong). Ensure seamless data flow between systems, eliminate manual data entry, and enable AI agents to share insights in a continuous feedback loop with Salesforce as the central hub. Set up and manage an AI-driven competitive intelligence system. Track competitor moves, pricing changes, and product launches, delivering structured weekly insights to sales and product teams. Scale outbound campaigns to ten times their current size without increasing headcount. Use AI to analyze accounts, generate personalized messaging based on ICP signals (like Salesforce team size, DevOps tools in use, and compliance needs), and orchestrate outreach across email, LinkedIn, and phone. Implement a closed-loop data feedback system that connects BDR activities, pipeline outcomes, and AI agent performance. Use real conversion data to improve ICP targeting, messaging, and channel strategy every week. Deploy AI-driven customer health scoring and churn prediction models. Identify at-risk accounts ahead of renewals and provide actionable prompts to the Customer Success team based on usage data. Location This is a remote position based in Ukraine.

About Point Wild Point Wild helps people monitor, manage, and protect their identities and personal data online. Backed by investors like WndrCo, Warburg Pincus, and General Catalyst, the company builds a broad suite of cybersecurity solutions for today and tomorrow. Role Overview The Backend Engineer will join a small, focused team working on security projects that emphasize cryptography, automation, and AI-powered analysis. This role involves hands-on development, close collaboration with senior engineers, and contributions across the stack. The team works closely with product and design to deliver secure, reliable features. What You Will Do Design, build, and ship backend features for the product. Write clean, maintainable code for systems running on AWS or GCP. Work with AI and cryptography specialists to strengthen security. Partner with the product manager to define requirements, plan architecture, map data flows, specify APIs, and develop testing strategies. Follow engineering best practices and join discussions on process and quality improvements. Iterate on features using customer feedback. Create automated tests for load, performance, and error handling. Location This position is remote within Ukraine.

SKELAR is a venture builder dedicated to creating international tech companies following the principles of venture capital. Together with co-founders, we assemble strong teams to launch product-driven IT businesses and excel in global markets.Currently, we are expanding our team and seeking a Senior Backend Engineer to develop world-class internal MarTech systems that will drive business growth at Dressly.Dressly is revolutionizing the fashion industry through AI technologies and a personalized approach. We create tailor-made fashion solutions that empower individuals to express themselves freely.Launched in 2024, we have quadrupled our growth in just six months, with plans to quintuple it again by 2026. The demand is strong, and we have a steady stream of users.Why join us now?This is a unique opportunity to be part of an early-stage team, build products alongside founders, and transform the fashion tech industry.To thrive in this role, you must be a versatile engineer capable of seamlessly transitioning between technologies to solve real business challenges. Your clients will be marketing teams, designers, and user acquisition managers who rely on your technical expertise to achieve exceptional results.Joining us means:Working within the fashion industry, one of the largest consumer sectors globally.Creating products at the intersection of fashion, creativity, and AI.Influencing the product: our engineers do not just write code but actively participate in shaping the product vision.Seeing the full business picture: from idea and design to launch and user feedback.Collaborating closely with designers, marketers, and creators for a shared outcome.Technology Stack:Frontend: TypeScript, NextJS (React), React Native, GraphQL;Backend: TypeScript, NestJS, GraphQL, PostgreSQL;Infrastructure: GCP.

N-iX is actively seeking a Senior Python Engineer with experience in Go or Java to become a vital member of our dynamic product team, which consists of approximately 8 engineers dedicated to developing a sophisticated and impactful software platform. In this role, you will contribute to both backend and frontend development, constructing scalable backend services and creating user-friendly frontend interfaces. You will leverage AI-driven development tools to enhance productivity and code quality. Our team adheres to Agile methodologies, emphasizing clean architecture, ownership, and a commitment to continuous improvement. As a key developer, you will participate in creating a next-generation enterprise solution for endpoint protection (EPP) and endpoint detection & response (EDR) that operates across various platforms, including Windows, macOS, and Linux. This solution is engineered to prevent, detect, respond to, and remediate cyber threats in real-time, encompassing malware, ransomware, and advanced persistent threats.

SKELAR is a venture builder dedicated to creating international product-oriented IT companies following the principles of the venture capital world. Together with co-founders, we assemble strong teams to launch product-focused IT businesses and excel in global markets.Currently, we are in search of a Senior Backend Engineer for our partner company.This platform focuses on personal and spiritual growth, built on Christian values. We assist individuals in finding answers to life’s most significant questions: from a deeper understanding of faith to enhancing relationships through personalized plans. Our users have access to lessons, interactive quizzes, and video materials, creating a holistic learning experience.Our strategy is to become a global platform where tens of millions of Christians, hundreds of organizations, and thousands of mentors and pastors can interact.Key Achievements We Are Proud Of:Users love us: our average rating on App Store, Google Play, and Trustpilot is 4.7/5.We are rapidly growing: our team has increased fourfold in the last year.We are a partner of Meta, confirming the high level of our product and the trust of technological leaders.We are evolving at an incredible pace, providing every team member the opportunity to grow rapidly alongside the company—both professionally and personally. The company supports learning through mentoring, internal educational initiatives, and access to external courses.It is worth noting that we extensively integrate AI tools into all processes. We are already utilizing integrations with MCP servers in daily tools, AI Code Review, and automation of key routine tasks. This allows us to focus on creativity and innovation instead of routine tasks.

SKELAR is a venture builder focused on creating international tech companies guided by the principles of venture capital. Together with co-founders, we assemble strong teams to launch product-driven IT businesses and excel in global markets.We are currently expanding our team and seeking a Middle Backend Engineer to develop world-class internal MarTech systems that will drive business growth at Dressly.Dressly is transforming the fashion industry through AI technology and a personalized approach. We create tailored fashion solutions that empower individuals to express themselves without fear.Since launching in 2024, we have quadrupled our growth in just six months. By 2026, we aim to grow fivefold compared to 2025. Our demand is validated, and we have a steady flow of users.Why Join Us Now?This is your chance to be part of an early-stage team, build products alongside the founders, and reshape the fashion tech industry.To succeed in this role, you should be a versatile engineer capable of seamlessly switching between technologies to tackle real business challenges. Your clients will be the marketing team, designers, and user acquisition managers who rely on your technical expertise to achieve 10x results.Joining us means:Working in the fashion sector, one of the largest consumer industries globally.Creating products at the intersection of fashion, creativity, and AI.Influencing the product: our engineers don’t just write code; they contribute to shaping product vision.Seeing the full picture of the business: from idea and design to launch and user feedback.Collaborating closely with designers, marketers, and creators for a shared outcome.What We Value:3+ years of backend development experience using JavaScript (Node.js), Python, or GoExperience with databases such as PostgreSQL and MongoDBPractical experience with production monitoring and CI/CD pipelinesYou’re an engineer, not just a framework developer: you understand how tools work under the hood, not just how to use them.You work iteratively: the principle of 'build, test, improve' resonates with you.

Important: This position requires relocation to our Milan office.About SatispaySatispay is on a mission to transform everyday payments, making them simple, equitable, and accessible for everyone. Our vision extends beyond the present as we strive to shape the future of financial transactions.We are a movement that empowers millions, united by a common goal to confront significant challenges. Our agile approach allows us to innovate rapidly, think creatively, and learn collaboratively as we push boundaries.If you seek to make a meaningful impact alongside a talented team, you have come to the right place.Key ResponsibilitiesAs a Senior Backend Software Engineer within the Business Team, you will significantly influence the future of digital welfare payments. Your responsibilities will encompass everything from employer benefits to sophisticated products, supporting the entire journey for both employers and employees to ensure lasting satisfaction. You will guide the technical direction, maintain quality, and ensure the timely delivery of complex systems that enable numerous employers to manage their corporate welfare efficiently. Here’s what you can expect in your daily tasks:Develop Multi-Service Solutions: Conduct thorough technical analyses for medium-to-large projects affecting various services in the Employer domain. Design comprehensive, highly available solutions, emphasizing scalability, security, and maintainability for products central to welfare.Guarantee Technical Quality: Implement strong testing strategies, balancing both automated and manual coverage while managing gradual rollouts with vigilant monitoring to ensure precise welfare distributions.Identify and Resolve Blockers: Proactively foresee and address technical obstacles, promoting knowledge sharing throughout the organization. Tackle the unique challenges posed by B2B registration workflows and high-volume benefit allocations while ensuring code quality through active reviews.Take Ownership: Own your projects from inception to completion, delivering features that genuinely address user needs—from the moment an employer signs up to when an employee utilizes their welfare benefits—through seamless and efficient back-end integration.

Innovecs provides digital services to clients across the US, UK, EU, Israel, Australia, and Ukraine. The company develops software for industries including supply chain, healthtech, collaboration technology, and gaming. Solutions are designed to meet each client’s changing business requirements. Innovecs has earned recognition for its growth and workplace culture. The company appeared on the Inc. 5000 list of fastest-growing private US companies for five consecutive years and is ranked among the top global outsourcing providers by IAOP. Additional honors include the Global Good Awards for Employee Engagement & Wellbeing, a gold award at the Employer Brand Management Awards, and a place in the Global Top 100 Inspiring Workplaces Ranking.

Role overview Wix Payments seeks a Backend Engineer based in Kyiv to strengthen the systems behind payment processing for Wix users. The focus is on backend development, supporting smooth and reliable transactions across the platform. What you will do Design, build, and maintain backend features for the Wix Payments platform Collaborate with colleagues from other teams to deliver dependable payment services Help improve the stability and efficiency of transaction processing Impact This role directly supports secure and seamless payment flows for Wix users. Enhancements made here will influence the reliability and performance of payment operations throughout the platform.

SKELAR is a dynamic venture builder dedicated to creating international product IT companies guided by the principles of venture investing. Together with co-founders, we assemble strong teams to launch product-focused IT businesses and excel in global markets.We are currently seeking a Junior/Middle Backend Engineer to join our partner company.This platform is designed for personal and spiritual development, based on Christian values. We assist individuals in finding answers to life's most significant questions, from deepening their faith to enhancing relationships with loved ones through personalized plans. Our users gain access to lessons, interactive quizzes, and video materials that create a comprehensive learning experience.Our strategy is to become a global platform where tens of millions of Christians, hundreds of organizations, and thousands of mentors and pastors can interact.Key Achievements We Are Proud Of:Users love us: average ratings in the App Store, Google Play, and Trustpilot are 4.7/5.We are growing rapidly: our team has quadrupled in the past year.We partner with Meta, which affirms the high quality of our product and the trust of technology leaders.We are evolving at an incredible pace, and every team member has the opportunity to grow rapidly alongside the company, both professionally and personally. The company supports learning through mentoring, internal educational initiatives, and access to external courses.Notably, we extensively integrate AI tools into all processes. We already utilize integrations with MCP servers in everyday tools, AI Code Review, and automation of key routine tasks. This allows us to focus on creativity and innovation rather than routine.

SKELAR is a prominent Ukrainian venture builder dedicated to developing international tech businesses. Together with our co-founders, we assemble strong teams poised to achieve success in global markets.Currently, SKELAR manages numerous businesses across various niches, from EdTech to marketplaces. Our companies consistently rank among Ukraine's top startups and product companies, achieving high positions in the App Store and developing platforms used by millions worldwide. Major media outlets, including TechCrunch and Wired, feature SKELAR's businesses.We take pride in our robust team of over 1,000 specialists, each bringing exceptional expertise and ambitious goals. Our people are our most valuable asset, and we aim to build businesses with the best talent available.Storyby is an entertainment tech company that transforms original ideas into captivating stories told through novels, vertical films, and immersive audiobooks. Over 10 million people globally engage with our content.In the Storyby ecosystem, we offer three key products:AlphaNovel – a platform for novels and immersive audiobooks featuring over 20,000 works.StorybyWriter – a publishing platform for more than 25,000 authors, bringing the strongest stories to life for DramaShorts.DramaShorts – a streaming service for vertical cinema with 1 million fans monthly, featuring in-house productions across Europe and the USA.We are currently expanding our team and looking for a Backend Engineer who will be a vital part of our team, helping the business grow and reach new heights.Your responsibilities will include:— Implementing and maintaining API endpoints for web and mobile: HTTP Cloud Functions, validation, OpenAPI/Swagger.— Optimizing performance: profiling, caching, and ensuring correct indexing for swift operation.— Ensuring quality and reliability: unit and integration testing (Jest), logging, tracing, alerts.— Conducting code reviews and upholding engineering standards in a monorepo (Nx, esbuild, CI).— Engaging in foundational infrastructure work using Terraform and participating in incident analysis.What we value:— You possess 3+ years of backend development experience with Node.js and TypeScript/JavaScript.— You have a strong understanding of SQL beyond basic SELECT queries, including indexing, profiling, and optimization.

We are on the lookout for an accomplished and innovative Lead Backend Engineer (AI-Driven Lifecycle Expert) to join our dynamic team.In this pivotal role, you will lead a newly established high-performance engineering team comprising 6-8 skilled professionals, including Senior Frontend and Backend Engineers. As a reliable leader, you will be accountable for the success of projects and the professional growth of your team members. Your role extends beyond conventional leadership; you will advocate for the adoption of AI-Driven Lifecycle (AIDLC) practices, ensuring that your team leverages AI tools throughout the development process to significantly enhance delivery speed.

Join Our Team at IdealsIdeals is a renowned global B2B SaaS provider celebrated for being the most customer-focused brand in the secure business collaboration space. With over 2 million users across 300,000 companies worldwide, we empower organizations to manage high-stakes processes and make significant decisions with greater ease and efficiency.Ideals Virtual Data Room (VDR): Facilitating secure document sharing and collaboration for due diligence, fundraising, corporate reporting, licensing, clinical trials, and other intricate transactions.Ideals Board: A platform designed for board and leadership collaboration, ensuring faster, safer, and compliant decision-making.Your MissionWe are in search of a Backend Software Engineer (.NET) with AI skills who will be pivotal in developing and scaling our secure, high-load VDR services while also exploring the integration of AI patterns into our product features.Your success will be gauged by your strong backend fundamentals—reliability, performance, scalability, and maintainability—and your capability to implement AI features safely and efficiently using reusable, well-architected components.This role is hands-on within a mature product environment where engineering excellence, observability, and sustainable architecture are paramount.Key ResponsibilitiesBackend Engineering:Design, develop, and maintain high-quality production-grade .NET services.Utilize .NET Framework 4.7, .NET 8, ASP.NET, Web API, and Entity Framework.Create and refine data models with MS SQL Server and PostgreSQL.Deploy and manage services on AWS, leveraging Docker, Kubernetes, and ArgoCD.Ensure service reliability and performance through:Defining clear SLIs, SLOs, and capacity planning.Implementing caching, retries, backoff strategies, and circuit breakers.Establishing secure multi-tenant access control.Take ownership of services from design through implementation, deployment, monitoring, and support.