Lead Software Engineer | BackEnd (Gurugram based)

🏢 Summary: Staff Backend Engineer role focused on designing and scaling high-performance distributed systems and microservices that power a global travel platform serving millions of users. The position combines hands-on coding, system design, and technical leadership to ensure scalability, reliability, and low-latency performance. You will drive architectural decisions, optimize high-throughput services, and mentor engineers while contributing to mission-critical backend domains. 🗂️ Requirements: 8–12 years backend engineering experience, Strong experience building distributed systems at scale, Expertise in Java, Kotlin, Scala, or Go, Strong knowledge of microservices architecture, Experience designing REST APIs and system architecture, Experience with SQL and NoSQL databases, Strong understanding of performance, scalability, and concurrency, Strong coding and problem-solving skills, Ability to contribute to technical decisions and mentor engineers 📃 Skills: Java, Kotlin, Scala, Go, Kafka, RabbitMQ, Cassandra, MongoDB, Aerospike, AWS, GCP, SQL, NoSQL, REST, CI/CD, Microservices, Concurrency 🏢 Description: About Agoda At Agoda, we bridge the world through travel. Our story began in 2005, when two lifelong friends and entrepreneurs, driven by their passion for travel, launched Agoda to make it easier for everyone to explore the world. Today, we are part of Booking Holdings [NASDAQ: BKNG], with a diverse team of over 7,000 people from 90 countries, working together in offices around the globe. Every day, we connect people to destinations and experiences, with great deals across millions of hotels and holiday properties, flights, and experiences worldwide. Data and technology are at the heart of our culture, fueling curiosity and innovation. Build systems that power millions of global travel experiences. About our Team At Agoda, our Backend Engineering team builds high-scale, fault-tolerant distributed systems that power a global travel platform serving millions of users daily. We own mission-critical domains across inventory, pricing, booking, payments, and customer/partner platforms. Our systems run with high availability, low latency, and zero-downtime expectations, powered by modern technologies such as Scala, Go, Java, Kotlin, Kafka, and Aerospike, along with strong foundations in CI/CD, automation, and observability. We ship fast—often dozens of releases a day—and design systems that are resilient, self-healing, and built to scale globally. The Opportunity As a Staff Backend Engineer, you will drive the design and development of scalable distributed systems, working on high-impact backend services. You'll combine hands-on coding, system design, and technical leadership, contributing to complex systems and influencing engineering practices. What You Will Do - Design and build scalable distributed systems and microservices - Lead development of complex features and technical initiatives end-to-end - Drive system design, API design, and engineering best practices - Own scalability, performance, reliability, and fault tolerance of services - Optimize high-throughput, low-latency systems - Contribute to cross-team collaboration and system alignment - Stay hands-on with coding and system design (50–60%) - Mentor engineers and support overall team capability growth - Participate in technical decision-making and architectural improvements - Handle production issues, RCA, and continuous improvements What We're Looking For - 8–12 years of backend engineering experience - Strong experience building distributed systems at scale - Expertise in Java, Kotlin, Scala, or Go - Strong understanding of microservices architecture - Strong understanding of REST APIs and system design - Experience with SQL/NoSQL databases - Strong understanding of performance, scalability, and concurrency - Strong coding and problem-solving ability - Ability to contribute to technical decisions and mentor engineers Nice to Have - Experience building large-scale consumer or marketplace platforms - Exposure to event-driven systems (Kafka, RabbitMQ) - Experience with NoSQL databases (Cassandra, MongoDB, Aerospike) - Familiarity with cloud (AWS/GCP) and CI/CD pipelines - Experience working in Agile/Scrum environments

🏢 Summary: Senior Software Engineer role focused on designing and building mission-critical APIs and large-scale distributed backend systems handling millions of requests daily. The position involves leading technical initiatives, shaping architecture decisions, and improving system reliability and engineering practices. You will work on performance-critical production systems using modern languages and data technologies. 🗂️ Requirements: 7+ years experience building performance-critical production applications, Experience with Scala, Java, or C# in backend development, Proven leadership of projects or technical initiatives with end-to-end ownership, Experience with SQL, Cassandra, or Hadoop data platforms, Strong knowledge of algorithms and data structures, Experience building large-scale distributed systems, Proficiency with version control and CI/CD tools 📃 Skills: Scala, Java, C#, SQL, Cassandra, Hadoop, Kafka, RabbitMQ, ActiveMQ, MSMQ, Spark, MongoDB, Akka, Git, TeamCity, Puppet 🏢 Description: About Agoda At Agoda, we bridge the world through travel. Our story began in 2005, when two lifelong friends and entrepreneurs, driven by their passion for travel, launched Agoda to make it easier for everyone to explore the world. Today, we are part of Booking Holdings [NASDAQ: BKNG], with a diverse team of over 7,000 people from 90 countries, working together in offices around the globe. Every day, we connect people to destinations and experiences, with our great deals across our millions of hotels and holiday properties, flights, and experiences worldwide. No two days are the same at Agoda. Data and technology are at the heart of our culture, fueling our curiosity and innovation. If you're ready to begin your best journey and help build travel for the world, join us.Get to Know our Team: In Agoda's Back End Engineering department, we build the scalable, fault-tolerant systems and APIs that host our core business logic. Our systems cover all major areas of our business: inventory and pricing, product information, customer data, communications, partner data, booking systems, payments, and more. These mission-critical systems change frequently with dozens of releases per day, so we must employ state-of-the-art CI/CD and testing techniques in order to make sure everything works without any downtime. We also ensure that our systems are self-healing, responding gracefully to extreme loads or unexpected input. In order to accomplish this, we use state-of-the-art languages like Scala and Go, data technologies like Kafka and Aerospike, and agile development practices. Most importantly though, we hire great people from all around the world and empower them to be successful. Whether it's building new projects like Flights and Packages or reimagining our existing business, you'll make a big impact as part of the Back End Engineering team. The Opportunity: Agoda is seeking experienced Software Engineers to design and build mission-critical APIs and backend systems that handle millions of user search requests every day. This is an exciting opportunity to work on large-scale distributed systems, shape technical direction, and help build reliable software that supports Agoda's global platform. In this Role, you'll get to Lead the development of product features, experiments, technical initiatives, and complex systems. Act as a technical leader by shaping architecture decisions, mentoring engineers, and guiding technology choices. Continuously improve system architecture and drive better software design and engineering practices. Play a key role in strengthening agile and scrum ways of working. Collaborate closely with backend, client-side, and infrastructure teams to deliver the best technical solutions. Proactively identify opportunities to enhance products, code quality, and development processes. Write high-quality, maintainable code while supporting others in doing the same. Influence and drive important technical decisions across the organization. What You'll Need to Succeed 7+ years of experience building and maintaining performance-critical applications in production environments using Scala, Java, or C#. Proven experience leading projects, technical initiatives, and/or teams, with end-to-end ownership of systems. Familiarity with data platforms such as SQL, Cassandra, or Hadoop, with a solid understanding of how different use cases require different data solutions. Strong foundation in algorithms and data structures. Excellent coding and problem-solving skills. Genuine passion for software engineering, with a continuous desire to learn and improve. Strong verbal and written communication skills in English. It's Great If You Have Experience working in Scrum or Agile environments. Experience building large-scale distributed systems or products. Familiarity with core engineering tools such as Git, TeamCity, and Puppet. Hands-on experience with technologies such as Kafka, RabbitMQ, ActiveMQ, MSMQ, Spark, Hadoop, Cassandra, MongoDB, Play Framework, or Akka. #india #newdelhi #Bangalore #Bengaluru #Pune #Hyderabad #Chennai #Kolkata #Lucknow #IT #ENG #4 #Mumbai #Delhi #Noida Please review our Hiring Process Guidelines before your interview — click here to learn how interviewing at Agoda works. Discover more about working at Agoda Agoda Careers https://careersatagoda.com Facebook https://www.facebook.com/agodacareers/ LinkedIn https://www.linkedin.com/company/agoda YouTube https://www.youtube.com/agodalife Equal Opportunity Employer At Agoda, we pride ourselves on being a company represented by people of all different backgrounds and orientations. We prioritize attracting diverse talent and cultivating an inclusive environment that encourages collaboration and innovation. Employment at Agoda is based solely on a person's merit and qualifications. We are committed to providing equal employment opportunity regardless of sex, age, race, color, national origin, religion, marital status, pregnancy, sexual orientation, gender identity, disability, citizenship, veteran or military status, and other legally protected characteristics. We will keep your application on file so that we can consider you for future vacancies and you can always ask to have your details removed from the file. For more details please read our privacy policy. Disclaimer We do not accept any terms or conditions, nor do we recognize any agency's representation of a candidate, from unsolicited third-party or agency submissions. If we receive unsolicited or speculative CVs, we reserve the right to contact and hire the candidate directly without any obligation to pay a recruitment fee.

🏢 Summary: Senior Backend Engineer role to architect and build the core systems of a next-generation AdTech platform, focusing on high-throughput, low-latency services for campaign delivery, targeting, and attribution. The position involves defining system architecture from the ground up using Python, Django, Kubernetes, and AWS in a distributed, scalable environment. Engineers will drive technical direction, optimize performance, and provide leadership in a fast-paced, product-driven setting. 🗂️ Requirements: 5+ years of software development experience building scalable backend systems, Strong knowledge of algorithms, data structures, networking, and databases, Proven experience designing and scaling distributed systems, Experience with backend programming languages (e.g. Java, .NET, Python, Node.js), Ability to design high-throughput, low-latency systems, Experience with system architecture and technical decision-making, Availability to work until 1pm EST, Upper-intermediate English level 📃 Skills: Python, Django, Kubernetes, AWS, PostgreSQL, Java, .NET, Node.js, ETL, OpenRTB, Prebid.js, GoogleAdManager, AmazonUAM, DSP, SSP 🏢 Description: ID68432 AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards. Why join us If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you! :) About the role We are looking for a Senior Backend Engineer to architect and build the core systems of a next-generation AdTech platform that embeds products directly into visual experiences. You will design high-throughput, low-latency services for campaign delivery, targeting, attribution, and partner integrations using Python, Django, Kubernetes, and AWS. This is an early-stage initiative where senior engineers define the technical direction and system architecture from the ground up. What you will do Architect, build, and evolve core systems for the Ads platform; Design APIs and services supporting campaign management, targeting, delivery, attribution, and reporting; Build and optimize high-throughput, low-latency systems processing large volumes of events and data; Own critical systems end-to-end, including design, implementation, deployment, monitoring, and ongoing improvements; Drive architectural decisions and establish patterns that support scalability, reliability, and developer productivity; Collaborate closely with product, data, and partner teams to translate business requirements into robust technical solutions; Provide technical leadership through design reviews, system discussions, and mentoring other engineers; Contribute to engineering best practices, documentation, and long-term platform vision; Participate in hiring and help grow a strong, high-performing team. Must haves 5 years of software development experience building scalable systems using backend programming languages/frameworks (e.g. Java , .NET , Python , Node.js , etc); Deep understanding of computer science fundamentals, including algorithms, data structures, networking, and databases; Proven experience designing and scaling distributed systems with a focus on performance, observability, and fault tolerance; Strong architectural instincts and the ability to make high-leverage technical decisions that impact multiple teams and systems; Demonstrated ability to influence and mentor senior engineers, guide teams through ambiguity, and elevate engineering practices across the board; Exceptional ownership mindset; Availability to work till 1pm EST (till 8 pm Kyiv time) ; Excellent communication and cross-functional collaboration skills; Comfortable operating in a fast-paced, high-autonomy, product-driven environment; Experience with e-commerce and catalog management is preferred; Familiarity with Python , Django , Kubernetes , PostgreSQL , and AWS is strongly preferred, but deep expertise in analogous systems and a willingness to learn are welcome; Upper-intermediate English level. Nice to haves Strong experience with complex ETL flows and high-throughput systems is highly preferred; Experience with AdTech (This may include experience with DSPs, SSPs, ad exchanges, affiliate programs, Prebid.js, Prebid Server, Google Ad Manager, Amazon UAM/TAM, OpenRTB, identity and addressability solutions, as well as ad operations workflows.) The benefits of joining us Professional growth: Accelerate your professional journey with mentorship, TechTalks, and personalized growth roadmaps Competitive compensation: We match your ever-growing skills, talent, and contributions with competitive USD-based compensation and budgets for education, fitness, and team activities A selection of exciting projects: Join projects with modern solutions development and top-tier clients that include Fortune 500 enterprises and leading product brands Flextime: Tailor your schedule for an optimal work-life balance, by having the options of working from home and going to the office – whatever makes you the happiest and most productive. Meet Our Recruitment Process Asynchronous stage – An automated, self-paced track that helps us move faster and give you quicker feedback: Short online form to confirm basic requirements 30–60 minute skills assessment via Codility – a platform founded in Poland that helps us provide quicker feedback and streamline this stage of the process. 5-minute introduction video Synchronous stage – Live interviews Technical interview with our engineering team (scheduled at your convenience) Final interview with your future teammates If it’s a match — you’ll get an offer!

🏢 Summary: Senior Backend Engineer role to architect and build the core systems of a next-generation AdTech platform embedding products into visual experiences. The position focuses on designing high-throughput, low-latency distributed services for campaign delivery, targeting, attribution, and reporting using Python, Django, Kubernetes, and AWS. Engineers define system architecture from the ground up and drive scalability, reliability, and performance. 🗂️ Requirements: 3–4 years of experience building scalable systems, Experience in AdTech domain, Strong knowledge of algorithms, data structures, networking, databases, Experience designing and scaling distributed systems, Focus on performance, observability, fault tolerance, Experience with Python and Django or other backend languages, Experience with Kubernetes, Experience with PostgreSQL, Experience with AWS, Ability to design system architecture, Upper-intermediate English 📃 Skills: Python, Django, Kubernetes, PostgreSQL, AWS, AdTech, ETL, APIs, DistributedSystems, Algorithms, DataStructures, Networking, Databases 🏢 Description: ID52365 AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards. Why join us If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you! :) About the role Join as a Senior Backend Developer (AdTech) to help build a next-generation advertising platform powered by scalable backend systems, real-time data processing, and distributed architectures. You will work with technologies such as Python, Django, Kubernetes, PostgreSQL, and AWS while contributing to technical direction and engineering standards in an early-stage environment. This role offers strong ownership, collaboration with experienced engineers, and the opportunity to create products used by millions of people. What you will do Architect, build, and evolve core systems for the Ads platform; Design APIs and services supporting campaign management, targeting, delivery, attribution, and reporting; Build and optimize high-throughput, low-latency systems processing large volumes of events and data; Own critical systems end-to-end, including design, implementation, deployment, monitoring, and ongoing improvements; Drive architectural decisions and establish patterns that support scalability, reliability, and developer productivity; Collaborate closely with product, data, and partner teams to translate business requirements into robust technical solutions; Provide technical leadership through design reviews, system discussions, and mentoring other engineers; Contribute to engineering best practices, documentation, and long-term platform vision; Participate in hiring and help grow a strong, high-performing team. Must haves 5 years of software development experience building scalable systems (backend programming languages/frameworks, e.g. Java , .NET , Python , Node.js etc); Experience with AdTech ; Experience with DSPs, SSPs, ad exchanges, affiliate programs, Prebid.js, Prebid Server, Google Ad Manager, Amazon UAM/TAM, OpenRTB, identity and addressability solutions, as well as ad operations workflows; Deep understanding of computer science fundamentals (algorithms, data structures, networking, databases); Proven experience designing and scaling distributed systems focusing on performance, observability, and fault tolerance; Strong architectural instincts and the ability to make high-leverage technical decisions that impact multiple teams and systems; Demonstrated ability to influence and mentor senior engineers, guide teams through ambiguity, and elevate engineering practices across the board; Exceptional ownership mindset — you drive initiatives forward, raise the bar, and deliver lasting impact; Excellent communication and cross-functional collaboration skills; Comfortable operating in a fast-paced, high-autonomy, product-driven environment; Experience with e-commerce and catalog management is preferred; Familiarity with Python , Django , Kubernetes , PostgreSQL , AWS is strongly preferred, but deep expertise in analogous systems and a willingness to learn are welcome; Upper-intermediate English level. Nice to haves Strong experience with complex ETL flows and high-throughput systems is highly preferred. The benefits of joining us Professional growth Accelerate your professional journey with mentorship, TechTalks, and personalized growth roadmaps Competitive compensation We match your ever-growing skills, talent, and contributions with competitive USD-based compensation and budgets for education, fitness, and team activities A selection of exciting projects Join projects with modern solutions development and top-tier clients that include Fortune 500 enterprises and leading product brands Flextime Tailor your schedule for an optimal work-life balance, by having the options of working from home and going to the office – whatever makes you the happiest and most productive. Meet Our Recruitment Process Asynchronous stage – An automated, self-paced track that helps us move faster and give you quicker feedback: Short online form to confirm basic requirements 30–60 minute skills assessment via Codility – a platform founded in Poland that helps us provide quicker feedback and streamline this stage of the process. 5-minute introduction video Synchronous stage – Live interviews Technical interview with our engineering team (scheduled at your convenience) Final interview with your future teammates If it’s a match — you’ll get an offer!

🏢 Summary: Senior Backend Engineer role focused on leading a large-scale migration from a monolithic database to multiple domain-specific data stores within Google Cloud Platform. The position involves designing and implementing complex data operations, including backfills, data mapping, and Change Data Capture using GCP Datastream and Dataflow. Strong expertise in data migration within cloud environments is essential. 🗂️ Requirements: 6+ years of professional backend engineering experience, Proven expertise in large-scale data migration, Strong experience with GCP data services, Hands-on experience with Datastream and Dataflow, Proficiency in Kotlin or Java, Experience designing and implementing data backfills and Change Data Capture processes 📃 Skills: Kotlin, Java, GCP, Datastream, Dataflow, SQL, ChangeDataCapture, DataMigration, Databases, Backfills 🏢 Description: ID63544 AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards. Why join us If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you! :) About the role We are looking for a Senior Backend Engineer to lead a critical migration from a monolithic database to multiple domain-specific data stores within Google Cloud Platform. You will design and implement data operations including backfills, data mapping, and Change Data Capture using GCP Datastream and Dataflow, working in Kotlin or Java. The role prioritizes demonstrated expertise in large-scale data migration over specific language fluency. What you will do Drive the migration from a single monolithic database to multiple domain-specific data stores within the Google Cloud Platform; Implement solutions for complex data operations, including one-time backfills, data mapping, filtering, and ongoing Change Data Capture to propagate data changes; Leverage expertise in GCP technologies, specifically Datastream and Dataflow. Must haves 6+ years of professional experience , ideally at a Senior or Lead level; Demonstrated deep expertise in data migration ; Extensive experience with Google Cloud Platform (GCP) data services, especially Datastream and Dataflow ; Proficiency in a modern programming language, such as Kotlin or Java ; Upper-intermediate English level. Nice to haves Experience with artificial intelligence (AI) to help optimize data workflows. The benefits of joining us Professional growth Accelerate your professional journey with mentorship, TechTalks, and personalized growth roadmaps Competitive compensation We match your ever-growing skills, talent, and contributions with competitive USD-based compensation and budgets for education, fitness, and team activities A selection of exciting projects Join projects with modern solutions development and top-tier clients that include Fortune 500 enterprises and leading product brands Flextime Tailor your schedule for an optimal work-life balance, by having the options of working from home and going to the office – whatever makes you the happiest and most productive. Meet Our Recruitment Process Asynchronous stage – An automated, self-paced track that helps us move faster and give you quicker feedback: Short online form to confirm basic requirements 30–60 minute skills assessment via Codility – a platform founded in Poland that helps us provide quicker feedback and streamline this stage of the process. 5-minute introduction video Synchronous stage – Live interviews Technical interview with our engineering team (scheduled at your convenience) Final interview with your future teammates If it’s a match — you’ll get an offer!

🏢 Summary: Senior Backend Engineer role focused on architecting and building the core systems of a next-generation AdTech platform, designing high-throughput, low-latency services for campaign delivery, targeting, and attribution. The position involves defining system architecture from scratch, scaling distributed systems, and providing technical leadership in a fast-paced environment. Strong experience with scalable backend development and AdTech ecosystems is required. 🗂️ Requirements: 5+ years of experience building scalable backend systems, Experience in AdTech (DSPs, SSPs, ad exchanges, Prebid, Google Ad Manager, OpenRTB, etc.), Strong knowledge of algorithms, data structures, networking, and databases, Proven experience designing and scaling distributed systems, Experience with backend programming languages (Java, .NET, Python, Node.js), Ability to design high-throughput, low-latency systems, Upper-intermediate English level, Availability to work until 1pm EST, Experience mentoring engineers and driving architectural decisions 📃 Skills: Python, Django, Kubernetes, AWS, PostgreSQL, Java, .NET, Node.js, OpenRTB, Prebid.js, Prebid, GoogleAdManager, AmazonUAM, AmazonTAM, ETL 🏢 Description: ID52365 AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in areas like application development and AI/ML, and our people-first culture has earned us multiple Best Place to Work awards. Why join us If you're looking for a place to grow, make an impact, and work with people who care, we'd love to meet you! :) About the role We are looking for a Senior Backend Engineer to architect and build the core systems of a next-generation AdTech platform that embeds products directly into visual experiences. You will design high-throughput, low-latency services for campaign delivery, targeting, attribution, and partner integrations using Python, Django, Kubernetes, and AWS. This is an early-stage initiative where senior engineers define the technical direction and system architecture from the ground up. What you will do Architect, build, and evolve core systems for the Ads platform; Design APIs and services supporting campaign management, targeting, delivery, attribution, and reporting; Build and optimize high-throughput, low-latency systems processing large volumes of events and data; Own critical systems end-to-end, including design, implementation, deployment, monitoring, and ongoing improvements; Drive architectural decisions and establish patterns that support scalability, reliability, and developer productivity; Collaborate closely with product, data, and partner teams to translate business requirements into robust technical solutions; Provide technical leadership through design reviews, system discussions, and mentoring other engineers; Contribute to engineering best practices, documentation, and long-term platform vision; Participate in hiring and help grow a strong, high-performing team. Must haves 5 years of software development experience building scalable systems (backend programming languages/frameworks, e.g. Java , .NET , Python , Node.js etc); Experience with AdTech (This may include experience with DSPs, SSPs, ad exchanges, affiliate programs, Prebid.js, Prebid Server, Google Ad Manager, Amazon UAM/TAM, OpenRTB, identity and addressability solutions, as well as ad operations workflows); Deep understanding of computer science fundamentals (algorithms, data structures, networking, databases); Proven experience designing and scaling distributed systems focusing on performance, observability, and fault tolerance; Strong architectural instincts and the ability to make high-leverage technical decisions that impact multiple teams and systems; Demonstrated ability to influence and mentor senior engineers, guide teams through ambiguity, and elevate engineering practices across the board; Exceptional ownership mindset — you drive initiatives forward, raise the bar, and deliver lasting impact; Excellent communication and cross-functional collaboration skills; Availability to work till 1pm EST (till 8 pm Kyiv time) ; Comfortable operating in a fast-paced, high-autonomy, product-driven environment; Experience with e-commerce and catalog management is preferred; Familiarity with Python , Django , Kubernetes , PostgreSQL , and AWS is strongly preferred, but deep expertise in analogous systems and a willingness to learn are welcome; Upper-intermediate English level. Nice to haves Strong experience with complex ETL flows and high-throughput systems is highly preferred. The benefits of joining us Professional growth Accelerate your professional journey with mentorship, TechTalks, and personalized growth roadmaps Competitive compensation We match your ever-growing skills, talent, and contributions with competitive USD-based compensation and budgets for education, fitness, and team activities A selection of exciting projects Join projects with modern solutions development and top-tier clients that include Fortune 500 enterprises and leading product brands Flextime Tailor your schedule for an optimal work-life balance, by having the options of working from home and going to the office – whatever makes you the happiest and most productive. Meet Our Recruitment Process Asynchronous stage – An automated, self-paced track that helps us move faster and give you quicker feedback: Short online form to confirm basic requirements 30–60 minute skills assessment via Codility – a platform founded in Poland that helps us provide quicker feedback and streamline this stage of the process. 5-minute introduction video Synchronous stage – Live interviews Technical interview with our engineering team (scheduled at your convenience) Final interview with your future teammates If it’s a match — you’ll get an offer!

🏢 Summary: Senior Backend Engineer role focused on transforming a mission-critical e-commerce domain supporting subscriptions and purchasing journeys for millions of users. The position centers on migrating a monolithic system to scalable microservices, improving performance and reliability, and shaping the future architecture of a global platform. Engineers will work with event-driven systems and modern AI tools while owning solutions end-to-end. 🗂️ Requirements: 5+ years of professional backend engineering experience, Strong experience designing and operating microservices architectures, Experience modernising legacy systems and decomposing monoliths, Solid understanding of distributed systems and scalable backend design, Commercial experience with Go, Java, Kotlin or Scala, Hands-on experience with Kafka or similar event-streaming technologies, Hands-on experience with PostgreSQL, Hands-on experience with Docker and Kubernetes, Experience with CI/CD pipelines, Practical experience using AI coding assistants (Claude Code, Cursor, Copilot or similar), Ability to review and validate AI-generated code, Comfortable owning solutions from idea to production 📃 Skills: Go, Golang, Java, Kotlin, Scala, Kafka, PostgreSQL, Docker, Kubernetes, CI/CD, GraphQL, DDD, TDD, BDD, Microservices 🏢 Description: Join a global e-commerce technology organisation serving millions of customers across multiple international markets. As a Senior Backend Engineer, you will become part of a team responsible for one of the company's most critical customer-facing domains. The platform supports customer subscriptions, plans, and purchasing journeys used daily by millions of users. This is not a maintenance role. The team is actively transforming a mission-critical domain, modernising legacy systems, reducing technical debt, and building the next generation of scalable services that will support future growth. You will play a key role in migrating core functionality from a monolithic architecture to modern microservices while helping shape the future architecture of a global platform. What You'll Do Build & Scale Core Services Design, develop, and maintain scalable backend services within a distributed microservices architecture. Build reliable systems supporting millions of customer interactions. Improve performance, reliability, and scalability across critical customer-facing services. Drive Modernisation Lead the migration of key business domains from monolithic systems to modern microservices. Reduce technical debt and improve long-term maintainability. Design solutions that support future platform growth. Shape Architecture Participate in architecture discussions and technical decision-making. Design orchestration layers supporting complex customer journeys and business processes. Help define engineering standards and best practices. Work with Event-Driven Systems Build and operate services powered by event-driven architectures. Work extensively with Kafka and real-time lifecycle events. Design resilient and observable distributed systems. Raise Engineering Standards Conduct code reviews and support other engineers through technical guidance. Promote best practices across software development, testing, deployment, and observability. Contribute to a strong culture of ownership and continuous improvement. AI-Powered Engineering Use modern AI tools and coding agents throughout the software development lifecycle. Leverage AI for onboarding, architecture exploration, implementation, testing, debugging, and productivity improvements. Apply engineering judgement to validate, verify, and safely integrate AI-generated outputs. What We're Looking For Backend Engineering Expertise 5+ years of professional backend engineering experience. Strong experience designing and operating microservices architectures. Experience modernising legacy systems and decomposing monoliths. Solid understanding of distributed systems and scalable backend design. Technical Stack Commercial experience with Go (Golang), Java, Kotlin or Scala Engineers coming from a JVM background should be open to working in a Go-driven environment. Hands-on experience with: Kafka or similar event-streaming technologies PostgreSQL Docker Kubernetes CI/CD pipelines Product & Ownership Mindset Comfortable owning solutions from idea through production. Strong problem-solving skills and ability to make technical trade-offs. Experience collaborating with product, business, and engineering stakeholders. AI Fluency Practical experience using AI coding assistants such as Claude Code, Cursor, Copilot, or similar tools. Understanding of how context, prompts, constraints, and validation influence AI-generated outputs. Ability to critically review and verify AI-generated solutions. Nice to Have Experience with subscription-based products. Experience in e-commerce environments. GraphQL knowledge. Familiarity with DDD, TDD, and BDD practices. What We Offer Opportunity to build systems used by millions of customers globally. High-impact engineering work with significant architectural ownership. International collaboration across distributed engineering teams. End-to-end ownership from idea to production. Hybrid working model (3 days per week in the Warsaw office). B2B cooperation model. 30 days of paid annual leave. Modern office located in Warsaw city centre. Continuous learning and professional growth opportunities.

🏢 Summary: The offer is for a Backend Developer role focused on building and maintaining high-performance, low-latency systems for advertising and e-commerce platforms. The position involves developing scalable microservices and APIs using Kotlin and Spring Boot, working with real-time event processing, and contributing to system architecture and scalability. The role also includes production support and collaboration within cross-functional engineering teams. 🗂️ Requirements: 3+ years of professional experience in Java backend development, Very good knowledge of Kotlin, Very good knowledge of Spring Boot, Hands-on experience with microservices architecture, Practical experience with NoSQL databases, Experience with MongoDB, Experience building and maintaining backend systems and APIs, Understanding of system design and scalable architecture principles, Experience with high-performance and high-scale systems, English level B2, Polish level C1, Experience with AI-powered coding assistants, Work permit for EU and ability to work from EU region, Availability for occasional visits to Warsaw office 📃 Skills: Java, Kotlin, Spring, SpringBoot, Microservices, MongoDB, NoSQL, REST, API, AI, Claude, Copilot, Cursor 🏢 Description: 🟣 You will be: developing and maintaining backend systems for advertising and e-commerce platforms, building low-latency, high-performance services processing large volumes of data, developing scalable microservices and APIs using Kotlin and Spring Boot, working on real-time event processing and advertising targeting mechanisms, contributing to architecture design and system scalability improvements, collaborating with stakeholders and supporting engineering best practices, including code reviews and code quality standards, participating in technical readiness/on-call support for production incidents a few days per month. 🟣 Your profile: 3+ years of professional experience in Java backend development, very good knowledge of Kotlin and Spring Boot, openness to occasional visits to the Warsaw office (1–2 days per quarter), hands-on experience with microservices architecture, practical experience working with NoSQL databases, especially MongoDB, experience building and maintaining backend systems and APIs, understanding of system design and scalable architecture principles, experience working with high-performance and high-scale systems, strong analytical thinking and problem-solving skills, ability to collaborate effectively with stakeholders and engineering teams, good communication skills in English (B2) and Polish (C1), practical experience using AI-powered assistants (e.g. Claude Code, GitHub Copilot, Cursor) to improve productivity, quality, or decision-making in software delivery. immediate availability or a short notice period is preferred. Work from the European Union region and a work permit are required. 🟣 Nice to have: experience applying GenAI in a more structured way within the SDLC, including defined workflows, prompt patterns, or tool integrations embedded into daily work, interest in and familiarity with emerging AI-driven practices (e.g. agent-based workflows, automation patterns, AI-augmented development), with a willingness to explore and experiment beyond standard approaches. 🟣 Recruitment Process: CV review – HR call – Technical Interview – Client Interview – Decision 🎁 Benefits 🎁 ✍ Development: development budgets of up to 6,800 PLN, we fund certifications e.g.: AWS, Azure, access to Udemy, O'Reilly (formerly Safari Books Online) and more, events and technology conferences, technology Guilds, internal training, Xebia Upskill. 🩺 We take care of your health: private medical healthcare, multiSport card - we subsidise a MultiSport card, mental Health Support. 🤸‍♂️ We are flexible: B2B or employment contract, contract for an indefinite period.

🏢 Summary: The role involves developing and maintaining high-performance backend systems for advertising and e-commerce platforms, focusing on scalable microservices and real-time data processing using Kotlin and Spring Boot. You will design low-latency services, contribute to system architecture, and support production environments in a high-scale setting. The position also emphasizes AI-assisted development practices and collaboration within engineering teams. 🗂️ Requirements: 3+ years of backend development experience, Very good knowledge of Kotlin, Very good knowledge of Spring Boot, Hands-on experience with microservices architecture, Experience with NoSQL databases, Experience with MongoDB, Experience building and maintaining backend systems and APIs, Understanding of system design and scalable architecture, Experience with high-performance and high-scale systems, English B2 level, Polish C1 level, Work permit in the European Union, Openness to occasional visits to Warsaw office, Experience using AI-powered coding assistants 📃 Skills: Kotlin, SpringBoot, MongoDB, NoSQL, Microservices, REST, APIs, GenAI, Claude, GitHubCopilot, Cursor, AWS, Azure 🏢 Description: 🟣 You will be: developing and maintaining backend systems for advertising and e-commerce platforms, building low-latency, high-performance services processing large volumes of data, developing scalable microservices and APIs using Kotlin and Spring Boot, working on real-time event processing and advertising targeting mechanisms, contributing to architecture design and system scalability improvements, collaborating with stakeholders and supporting engineering best practices, including code reviews and code quality standards, participating in technical readiness/on-call support for production incidents a few days per month. 🟣 Your profile: 3+ years of professional experience in backend development, very good knowledge of Kotlin and Spring Boot, openness to occasional visits to the Warsaw office (1–2 days per quarter), hands-on experience with microservices architecture, practical experience working with NoSQL databases, especially MongoDB, experience building and maintaining backend systems and APIs, understanding of system design and scalable architecture principles, experience working with high-performance and high-scale systems, strong analytical thinking and problem-solving skills, ability to collaborate effectively with stakeholders and engineering teams, good communication skills in English (B2) and Polish (C1), practical experience using AI-powered assistants (e.g. Claude Code, GitHub Copilot, Cursor) to improve productivity, quality, or decision-making in software delivery. Work from the European Union region and a work permit are required. 🟣 Nice to have: experience applying GenAI in a more structured way within the SDLC, including defined workflows, prompt patterns, or tool integrations embedded into daily work, interest in and familiarity with emerging AI-driven practices (e.g. agent-based workflows, automation patterns, AI-augmented development), with a willingness to explore and experiment beyond standard approaches. 🟣 Recruitment Process: CV review – HR call – Technical Interview – Client Interview – Decision 🎁 Benefits 🎁 ✍ Development: development budgets of up to 6,800 PLN, we fund certifications e.g.: AWS, Azure, access to Udemy, O'Reilly (formerly Safari Books Online) and more, events and technology conferences, technology Guilds, internal training, Xebia Upskill. 🩺 We take care of your health: private medical healthcare, multiSport card - we subsidise a MultiSport card, mental Health Support. 🤸‍♂️ We are flexible: B2B or employment contract, contract for an indefinite period.

🏢 Summary: Engineering leadership role responsible for managing and mentoring a team of engineers, overseeing project delivery, and driving engineering strategy in an e-commerce environment. The position focuses on ensuring high-quality, timely execution of technical initiatives while improving development processes and aligning with business goals. 🗂️ Requirements: Minimum 8 years of experience in engineering, At least 3 years of experience managing engineering teams, Proficiency in GoLang, Java, Scala, JavaScript or PHP, Experience with ReactJS and/or GoLang, Strong project management skills, Understanding of SLO and SLI concepts, Experience with development metrics, Strong English communication skills 📃 Skills: GoLang, Java, Scala, JavaScript, PHP, ReactJS, SLO, SLI, DX, ProjectManagement 🏢 Description: We are an e-commerce platform in Poland and a network of travel agencies offering a wide range of travel products. We are part of Wirtualna Polska Holding – Poland’s largest group of media and e-commerce companies. Alongside Wakacje.pl and the Invia brands, we scale our impact across the CEE market, driven by a shared #TravelMindset. In our daily work, we #Explore better ways to grow, #Engage through real ownership and teamwork, and #Enjoy building experiences that people genuinely look forward to. Send us your CV and… see you at Travelplanet.pl ! ✈️ Your responsibilities Lead and mentor a team of engineers, fostering a collaborative and innovative work environment. Oversee the planning, execution, and delivery of engineering projects. Develop and implement engineering strategies aligned with company goals. Ensure projects are completed on time, within scope, and within budget. Collaborate with cross-functional teams to define project requirements and deliverables. Continuously improve engineering processes and workflows. Provide technical guidance and support to team members. Conduct performance evaluations and support the professional development of team members. Our requirements Minimum 8 years of experience in the engineering industry. At least 3 years of experience in a leadership role, managing engineering teams. Proficiency in one of the following programming languages: GoLang, Java, Scala, JavaScript or PHP. Experience with ReactJS and/ or GoLang is as big plus. Can-do attitude with a proactive and solution-oriented approach. Excellent project management skills, with the ability to handle multiple topics simultaneously. Understanding of developer experience (DX) and familiarity with concepts such as SLO (Service Level Objectives) and SLI (Service Level Indicators). Experience with metrics used by development teams. Strong command of English, both written and spoken, to ensure effective communication with international teams. Strong desire for continuous learning and development. Excellent communication and interpersonal skills. Strong problem-solving skills and ability to work effectively under pressure. Our offer Competitive Salary :  commensurate with skills and experience Paid time off : is included in the service fee Flexible Working Hours : Our core hours are 9 AM to 3 PM Hybrid Work Model: Work 2 days in the office and 3 days from home Health and Wellness: Shared costs for sports activities and private medical care Professional Development: Shared costs for training and courses Life Insurance : Comprehensive coverage for peace of mind Employee Discounts: Access to corporate products and services at discounted prices If the above sounds like an interesting opportunity we would be more than happy to hear from you! Please send your resume in English.