Senior Backend Engineer

🏢 Summary: Build and scale a central policy repository and web-based management tooling that powers content detection, enforcement, and compliance systems. The role combines backend API development, data pipeline engineering, and frontend application development to support policy versioning and regulatory requirements at scale. You will collaborate across safety, legal, and compliance teams to deliver reliable, user-friendly internal tools. 🗂️ Requirements: Experience building and operating backend services and APIs in production at scale, Proficiency in Java, Kotlin, Go or similar backend language, Experience building web frontends with React, TypeScript or similar framework, Understanding of API design, schema evolution and backward compatibility, Experience with data pipelines, real-time and batch processing, Ability to design and build user-friendly interfaces, Experience working in regulated or compliance-sensitive environments, Ability to collaborate across teams and communicate with non-technical stakeholders 📃 Skills: Java, Kotlin, Go, React, TypeScript, APIs, Data, Pipelines, Real-time, Batch 🏢 Description: About the Team We design the consumer experience end-to-end, across every screen, platform, and partner integration. Our goal is to make listening feel effortless, personal, and joyful for hundreds of millions of users around the world. The Policy & Safety group builds the infrastructure that keeps that experience safe at scale. This includes the rule engines, enforcement pipelines, policy configuration systems, and compliance data platforms behind content moderation. We work at the intersection of backend platform engineering, machine learning systems, and regulatory compliance, partnering closely with trust and safety, legal, and content protection teams. Because we sit on the path of every new content type and feature, our work makes safety a default part of the company experience while supporting global regulatory requirements and ongoing product innovation. The Policy Catalog team owns the central policy repository, the single source of truth for how content policies are defined, versioned, and used across detection, enforcement, and compliance. We are building and scaling this system to be the reliable foundation that the entire safety enforcement chain depends on, bringing policies from many areas of the business into one well-structured system. A core part of this work is building the web-based tooling that lets teams manage the policy registry directly, ensuring our systems are as strong on the frontend as they are on the backend. What You'll Do You will build and maintain the APIs and services that expose policy logic consistently across detection, enforcement, and compliance surfaces. You will contribute to the design and development of the central policy repository, expanding its capabilities to cover new use cases including detection, and build data pipelines that feed structured policy data into downstream machine learning models and enforcement systems. Develop and maintain backend services and APIs. Design and implement the internal web application for policy management by non-technical stakeholders. Ensure the full experience is responsive, reliable, and user-friendly. Ingest, structure, version, and ensure the reliability of policies across the business. Collaborate with detection, enforcement, and compliance partners to align on policy definitions. Translate regulatory and compliance requirements into engineering constraints. Write clean, well-tested, and well-documented code across the stack. Key Requirements Solid experience building and operating backend services and APIs in production at scale. Proficiency in a backend language such as Java, Kotlin, Go, or similar. Hands-on experience building web frontends with a modern framework such as React, TypeScript, or similar. Understanding of API design, schema evolution, and backward compatibility. Experience with data pipelines, real-time, and batch processing. Ability to build user-friendly interfaces that simplify complex workflows. Experience in regulated or compliance-sensitive environments. Effective collaboration across teams and clear communication with non-technical partners. Nice to Have Experience in developing internal tooling for non-technical audiences. Familiarity with data modeling for auditability, versioning, and querying. Other Details Start: ASAP/August - 6 months with possibility to extend Workplace: Stockholm, Sweden

🏢 Summary: Backend Software Engineer role focused on building and improving security-sensitive backend services and APIs for a global password and credential management product. The position involves designing robust business logic, access control systems, and integrations while ensuring high standards of security, reliability, and maintainability. Engineers contribute across the full development lifecycle in a collaborative, open-source-driven environment. 🗂️ Requirements: Production experience building backend applications with PHP, Strong knowledge of a modern PHP framework (CakePHP, Symfony or Laravel), Solid backend engineering fundamentals, Ability to design simple, robust solutions for complex problems, Experience with testing and maintaining high code quality, Ability to work on business logic, access control and security-sensitive systems, Collaborative working style with clear communication skills, Interest in security and privacy-focused software development 📃 Skills: PHP, CakePHP, Symfony, Laravel, SQL, PHPUnit, OpenAPI, Git, Docker, Linux, macOS, LDAP, OAuth, JWT, SCIM, WebAuthn, ActiveDirectory, JavaScript, Bash, Python, Go, Rust 🏢 Description: THE CLIENT Our client is a fast-growing cybersecurity product company rethinking how teams manage and share sensitive access. Their platform is trusted by 40,000+ organisations across 50+ countries - and growing fast. This is an engineering-led business: modern architecture, real technical challenges, and a strong focus on open source, privacy, and security. They’re building a fully remote, collaborative team and looking for engineers who take ownership and enjoy solving meaningful problems. If you want to work on a product with real impact at global scale - this is worth a conversation. THE ROLE: Our client is looking for a software engineer to join its Backend team and help build the systems behind its password and credential management products across Community, Enterprise and Cloud editions. This is a backend engineering role in a security-sensitive product environment. The API sits at the centre of how our client handles business logic, access rights, integrations, data integrity and long-term product reliability. The role is well-suited to an engineer who enjoys solving complex product problems, building sustainable systems, and balancing security, simplicity and maintainability. You would contribute across the full development lifecycle: understanding the problem, shaping the technical approach, implementing features, improving the codebase over time, and helping maintain a high standard of quality. This role will suit someone who likes ownership, thinks clearly about impact and trade-offs, and is motivated by building trustworthy software in an open-source environment. RESPONSIBILITIES: Build and improve backend services and API workflows across product suite Translate functional and product requirements into clear, reliable technical solutions Work on business logic, access control, integrations and security-sensitive application flows Help maintain and improve code quality, test coverage, performance and backward compatibility Contribute to technical design discussions and identify opportunities to simplify or strengthen the system over time Collaborate with product, support, security and engineering peers to refine and deliver solutions Contribute to documentation and knowledge sharing across the team CORE REQUIREMENTS: Experience building backend applications in production with PHP Strong backend engineering fundamentals with a modern framework such as CakePHP, Symfony or Laravel Ability to break down complex problems and design simple, robust solutions Good testing habits and attention to quality Comfort working across product, engineering and implementation questions - not just executing tickets Strong collaboration skills, openness to feedback, and a low-ego working style Interest in security, privacy, or building trustworthy software systems NICE TO HAVE: Experience working on security-sensitive applications or authentication / access-control problems Exposure to cryptography-related systems or secure integrations Experience with OpenAPI or well-structured public-facing APIs Experience maintaining long-lived software products Experience with directory integrations or identity systems such as LDAP, Active Directory, OAuth, JWT, SCIM or WebAuthn Experience contributing to open-source projects Familiarity with another language such as JavaScript, Bash, Python, Go or Rust Tools and technologies you’ll work with: You may work across technologies such as PHP, CakePHP, SQL, PHPUnit, OpenAPI, Git and Docker, in Linux and macOS-based development environments. We do not expect candidates to bring experience with every tool listed here. How you work You take ownership of problems, not just tasks You value simplicity and avoid over-engineering You communicate clearly and raise risks early You work well in an environment where feedback is frequent and constructive

🏢 Summary: Backend Software Engineer role focused on building and maintaining secure backend services and APIs for password and credential management products across Community, Enterprise, and Cloud editions. The position involves designing reliable business logic, access control mechanisms, and integrations in a security-sensitive environment. Engineers contribute across the full development lifecycle with strong emphasis on quality, maintainability, and security. 🗂️ Requirements: Commercial experience building backend applications in PHP, Experience with modern PHP frameworks (CakePHP, Symfony or Laravel), Strong backend engineering fundamentals, Ability to design robust solutions for complex problems, Experience writing tests and maintaining code quality, Understanding of security-sensitive systems or access control, Experience working with APIs and backend integrations, Proficiency with SQL and relational databases, Experience using Git for version control, Ability to work in Linux or macOS development environments 📃 Skills: PHP, CakePHP, Symfony, Laravel, SQL, PHPUnit, OpenAPI, Git, Docker, Linux, macOS, LDAP, OAuth, JWT, SCIM, WebAuthn, ActiveDirectory, JavaScript, Bash, Python, Go, Rust 🏢 Description: THE CLIENT Our client is a fast-growing cybersecurity product company rethinking how teams manage and share sensitive access. Their platform is trusted by 40,000+ organisations across 50+ countries - and growing fast. This is an engineering-led business: modern architecture, real technical challenges, and a strong focus on open source, privacy, and security. They’re building a fully remote, collaborative team and looking for engineers who take ownership and enjoy solving meaningful problems. If you want to work on a product with real impact at global scale - this is worth a conversation. THE ROLE: Our client is looking for a software engineer to join its Backend team and help build the systems behind its password and credential management products across Community, Enterprise and Cloud editions. This is a backend engineering role in a security-sensitive product environment. The API sits at the centre of how our client handles business logic, access rights, integrations, data integrity and long-term product reliability. The role is well-suited to an engineer who enjoys solving complex product problems, building sustainable systems, and balancing security, simplicity and maintainability. You would contribute across the full development lifecycle: understanding the problem, shaping the technical approach, implementing features, improving the codebase over time, and helping maintain a high standard of quality. This role will suit someone who likes ownership, thinks clearly about impact and trade-offs, and is motivated by building trustworthy software in an open-source environment. RESPONSIBILITIES: Build and improve backend services and API workflows across product suite Translate functional and product requirements into clear, reliable technical solutions Work on business logic, access control, integrations and security-sensitive application flows Help maintain and improve code quality, test coverage, performance and backward compatibility Contribute to technical design discussions and identify opportunities to simplify or strengthen the system over time Collaborate with product, support, security and engineering peers to refine and deliver solutions Contribute to documentation and knowledge sharing across the team CORE REQUIREMENTS: Experience building backend applications in production with PHP Strong backend engineering fundamentals with a modern framework such as CakePHP, Symfony or Laravel Ability to break down complex problems and design simple, robust solutions Good testing habits and attention to quality Comfort working across product, engineering and implementation questions - not just executing tickets Strong collaboration skills, openness to feedback, and a low-ego working style Interest in security, privacy, or building trustworthy software systems NICE TO HAVE: Experience working on security-sensitive applications or authentication / access-control problems Exposure to cryptography-related systems or secure integrations Experience with OpenAPI or well-structured public-facing APIs Experience maintaining long-lived software products Experience with directory integrations or identity systems such as LDAP, Active Directory, OAuth, JWT, SCIM or WebAuthn Experience contributing to open-source projects Familiarity with another language such as JavaScript, Bash, Python, Go or Rust Tools and technologies you’ll work with: You may work across technologies such as PHP, CakePHP, SQL, PHPUnit, OpenAPI, Git and Docker, in Linux and macOS-based development environments. We do not expect candidates to bring experience with every tool listed here. How you work You take ownership of problems, not just tasks You value simplicity and avoid over-engineering You communicate clearly and raise risks early You work well in an environment where feedback is frequent and constructive

🏢 Summary: Backend engineering role focused on building scalable backend services, APIs, and internal developer platforms in a fully remote environment. The position involves improving system architecture, optimizing distributed systems, and collaborating across the full software development lifecycle. The offer includes influence on technical decisions, modern technologies, and growth opportunities within an experienced engineering team. 🗂️ Requirements: 5+ years of backend software development experience, Proficiency in PHP or experience with Java, Python, Go, Knowledge of RESTful APIs and GraphQL, Experience building scalable distributed backend systems, Experience with SQL/MySQL and database optimization, Experience with automated testing and monitoring, Knowledge of debugging production systems, Familiarity with contract-driven development, English for daily technical communication 📃 Skills: PHP, Java, Python, Go, REST, GraphQL, SQL, MySQL, React, API 🏢 Description: ✅ Your responsibilities: ・Design, develop, and maintain scalable backend services and APIs for third-party integrations. Improve platform architecture, service communication, and internal developer tooling. Collaborate with Product Managers, Designers, and Engineers throughout the entire software development lifecycle. Optimize existing systems for performance, scalability, reliability, and maintainability. Drive engineering best practices, including code quality, testing, and documentation. Participate in architecture discussions and technical decision-making. Mentor engineers through code reviews, pair programming, and knowledge sharing. Continuously improve the developer experience by building reliable internal platforms and tools. 🧠 Our requirements: 5+ years of experience in backend software development. Strong proficiency in PHP (preferred) or solid experience with Java, Python, Go , or similar backend technologies. Strong understanding of RESTful APIs , GraphQL , and API design best practices. Experience designing and building scalable, distributed backend systems. Hands-on experience with SQL/MySQL databases and database optimization. Experience with automated testing, observability, monitoring, and debugging production systems. Familiarity with contract-driven development and modern software development practices. Basic knowledge of frontend technologies such as React is a plus. Strong communication skills and the ability to collaborate across cross-functional teams. Passion for writing clean, maintainable, and high-quality code or AI automation English at a level allowing daily technical communication 🌟 What we offer: 100% remote work. Private healthcare and Multisport. Life insurance. Real influence on technical decisions and system architecture. Opportunity to build scalable backend services and developer platforms. Work with modern technologies in a collaborative engineering environment. Knowledge sharing, mentorship, and professional growth opportunities. Friendly, supportive, and experienced engineering team.

🏢 Summary: Remote backend engineering role focused on building secure, scalable backend services and APIs using Python and Java within a cloud-native, security-driven environment. The position involves developing microservices, managing Kubernetes-based deployments, and integrating with AWS and Splunk for security analytics and monitoring. The engineer will work closely with security and frontend teams in an Agile setup. 🗂️ Requirements: Minimum 3 years of backend engineering experience, Proficiency in Python 3, Proficiency in Java, Experience with RESTful APIs, Experience with microservices architectures, Hands-on experience with AWS (DynamoDB, IAM, Lambda, API Gateway), Strong knowledge of Redis and high-availability configurations, Experience with Docker and Docker Compose, Practical experience with Kubernetes, Experience with Helm, Experience with Splunk Enterprise data ingestion and analytics, Knowledge of HTTP Event Collector configuration, Experience with authentication and IAM, Experience integrating with Identity Providers, Bachelor’s degree in Computer Science, Engineering or equivalent experience 📃 Skills: Python, Java, REST, Microservices, AWS, DynamoDB, IAM, Lambda, APIGateway, Redis, Docker, Kubernetes, Helm, Splunk, SAML, SSO, HTTP, Webhooks, Protobuf, WebSockets 🏢 Description: Location: 100% remote Tasks Design, develop, and maintain scalable backend services and APIs Build secure, high-performance backend systems using Python 3 and Java Implement RESTful APIs and microservices architectures Implement and manage secure authentication flows using SAML 2.0 and SSO Integrate backend services with frontend components and collaborate with React developers Configure and maintain Splunk Enterprise integrations for security event monitoring Build and maintain Splunk dashboards for threat discovery and investigation Collaborate with security teams on Cisco Secure Firewall and Secure Network Analytics integrations Manage containerized deployments using Docker, Docker Compose, and Kubernetes Administer Kubernetes clusters including deployment, scaling, and Helm chart management Optimize Redis caching strategies including session management and pub/sub messaging Develop and maintain AWS DynamoDB data models and access patterns Configure and manage AWS IAM roles and security policies Implement serverless solutions using AWS Lambda and API Gateway Contribute to endpoint security analytics pipelines using Cisco AnyConnect NVM and CESA Configure NVM Collector and Splunk Add-Ons for endpoint analytics Participate in code reviews, architectural discussions, and technical documentation Work in an Agile/Scrum development environment Requirements At least 3 years of backend engineering experience Proficiency in Python 3 and Java Experience with RESTful APIs and microservices architectures Hands-on experience with AWS including DynamoDB, IAM, Lambda, and API Gateway Strong knowledge of Redis including high-availability cluster configurations Experience with Docker and Docker Compose for containerized development Practical experience with Kubernetes and Helm Experience with Splunk Enterprise data ingestion and analytics Knowledge of HTTP Event Collector configuration and webhook integrations Hands-on experience with security topics (IAM, auth) is highly desirable Experience integrating with Identity Providers and Active Directory attribute mapping Experience with Protobuf and WebSockets is an advantage Experience with Duo Network Gateway and secure access to on-premises resources is a plus Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience Strong problem-solving skills and ability to work in a fast-paced environment Offer Multisport card Private healthcare Access to an e‑learning platform Group life insurance

🏢 Summary: Senior backend‑heavy fullstack engineer to build a greenfield prenatal screening diagnostics product, owning features end‑to‑end across backend and frontend. The role focuses on Java/Spring Boot architecture, data modeling, APIs, and AWS infrastructure, with React/TypeScript contributions as needed. AI coding tools are expected as a core part of daily development in a regulated, production environment. 🗂️ Requirements: Strong Java and Spring Boot expertise, Experience designing APIs and domain models, Solid understanding of OOP and SOLID principles, Ability to define service boundaries and system architecture, Working proficiency in React and TypeScript, Proven experience using AI coding tools in daily development, Experience writing unit, integration, and API tests, Experience with PostgreSQL schema design and query optimization, Experience deploying and operating workloads on AWS, Ability to work in greenfield, ambiguous environments 📃 Skills: Java, Spring, SpringBoot, React, TypeScript, PostgreSQL, AWS, ECS, EKS, RDS, Lambda, S3, OOP, SOLID, REST, AI, Claude, Cursor, Testing 🏢 Description: Our client — a global leader in healthcare and diagnostics — is building a new prenatal screening diagnostics product from the ground up. We are looking for a senior backend‑heavy fullstack engineer who can own features end‑to‑end — from data modeling and APIs to the UI. The role offers real ownership within a highly regulated, impact‑driven product environment. Using AI tooling as a core part of daily engineering work is expected — not as an experiment, but as a standard way of building and delivering software. What You'll do: Own features end-to-end: design, implement, test, deploy, and maintain across the full stack. Work split ~80% backend, 20% frontend. Make foundational architectural decisions on a greenfield codebase — data models, API contracts, service boundaries, test strategy Build and maintain the Java/Spring Boot backend that powers the product's core logic Contribute to the React/TypeScript frontend when needed — you're backend-primary, but you ship UI when the team needs it Integrate AI coding tools into your daily workflow to accelerate delivery while maintaining code quality — and help the team adopt these practices Collaborate directly with product stakeholders to refine requirements in a fast-moving, low-ceremony environment Requirements: Strong Java and Spring Boot expertise — clean API design, domain modeling, sound architectural trade-offs. You think in terms of service boundaries, data flow, and maintainability, not just making it work Solid grasp of software design principles — object-oriented programming, SOLID, clean architecture, separation of concerns. You write code that the next person can read, extend, and trust. You know when a pattern helps and when it's ceremony Working proficiency in React and TypeScript — you can pick up frontend tasks, build components, and integrate with backend APIs independently Proven experience integrating AI coding tools (Claude Code, Cursor, or equivalent) into daily development workflow — including prompt design for code generation, output validation, and actively preventing AI-generated technical debt. You can describe concrete examples of where AI accelerated your delivery and where you chose to override it Testing as a professional discipline, not a checkbox — you write unit, integration, and API tests as part of delivery, own the test pyramid decisions, and treat untested code as unfinished code PostgreSQL — schema design, query optimization, migrations in a production context AWS experience — you've deployed and operated production workloads on AWS (ECS/EKS, RDS, Lambda, S3) and can make informed infrastructure decisions Comfort working in ambiguous, greenfield settings — you define scope with stakeholders rather than waiting for pre-scoped tickets Nice-to-Have: Infrastructure as Code (Terraform) Healthcare, diagnostics, or regulated-environment experience Security hardening practice — threat modeling, dependency scanning, secure defaults Observability tooling (CloudWatch, Prometheus, Grafana) CI/CD pipeline design (GitHub Actions or similar) Our offer: Permanent full-time contract (B2B contract) Ability to work entirely remotely or in one of our cool offices around Poland International project environment - challenging and rewarding projects Access to private medical service, life insurance, and multisport card Access to training and certificate courses (including free access to Udemy training platform) Cafeteria Benefits System - vouchers for purchases and sevices Awesome company events and parties

🏢 Summary: The offer is for a Fullstack .NET Developer role focused on building and maintaining digital insurance products used by thousands of customers. The position involves developing backend services and APIs in .NET and frontend applications in React within a cloud-native, microservices-based environment. You will work across multiple systems, contributing to architecture, integrations, and engineering best practices. 🗂️ Requirements: 3+ years commercial software development experience, Strong knowledge of C#, Strong knowledge of .NET ecosystem, Experience designing and building REST APIs, Experience with relational databases, Experience with ORM frameworks, Knowledge of React.js, Experience with TypeScript, Understanding of OOP principles, Understanding of design patterns, Ability to write clean and testable code, Experience working in Agile teams 📃 Skills: C#, .NET, REST, SQL, EntityFramework, React, TypeScript, OOP, Microservices, RabbitMQ, MassTransit, Kafka, Docker, Kubernetes 🏢 Description: Beesafe is one of Poland's fastest-growing digital insurance brands. We combine technology, data, and customer-centric design to create insurance products that are simple, transparent, and digital-first. Our teams build modern solutions using cloud-native technologies, automation, and engineering best practices, helping thousands of customers manage their insurance online every day. At Beesafe, you'll build digital insurance products used daily by thousands of customers across Poland. You'll work with modern technologies, cloud-native architecture, and experienced engineers who care about quality, collaboration, and continuous improvement. This is a role where you can grow technically while having a direct impact on products that matter. What you'll gain Work on real products used by thousands of customers Learn from experienced engineers and architects Develop your skills in microservices, distributed systems, and modern cloud-native development Influence technical decisions and solution design Work in a collaborative environment focused on knowledge sharing Participate in projects that combine technology, customer experience, and business value Gain exposure to both backend and frontend development What you'll be working on You'll join a team responsible for developing and maintaining a portfolio of digital insurance solutions and customer-facing services. Our products include: Health and wellbeing applications (web and mobile) Digital insurance sales journeys Customer self-service solutions (policy changes, data updates, cancellations) Integrations with external partners and industry services Security and compliance initiatives, including DORA-related solutions Rather than being assigned to a single product, you'll have the opportunity to work across multiple systems and business domains, gaining broad technical and business exposure. Your responsibilities Design, develop, and maintain backend services and APIs using .NET Develop and maintain frontend applications using React.js and TypeScript Implement business requirements in collaboration with analysts and product owners Participate in technical design and architecture discussions Build integrations with internal and external systems Write clean, maintainable, and well-tested code Participate in code reviews and knowledge-sharing activities Troubleshoot and resolve production issues when needed Contribute to improving engineering standards, tooling, and development practices Collaborate closely with developers, testers, analysts, and business stakeholders Must-have 3+ years of commercial experience in software development Solid knowledge of C# and the .NET ecosystem Experience designing and building REST APIs Experience working with relational databases Practical knowledge of Entity Framework or similar ORM frameworks Good knowledge of React.js and modern frontend development Experience working with TypeScript Understanding of object-oriented design principles and design patterns Ability to write clean, maintainable, and testable code Experience working in Agile teams Good communication and collaboration skills Proactive attitude and willingness to learn Nice to have Experience with microservices architecture Experience with event-driven systems and messaging platforms Knowledge of RabbitMQ, MassTransit, Kafka, or similar technologies Experience with Docker and containerized environments Familiarity with Kubernetes Understanding of distributed systems concepts Experience building cloud-native applications Experience in insurance, banking, fintech, or other regulated industries Interested? Let's talk and see how we can build the future of digital insurance together Why Join Us? Be part of a dynamic team driving digital innovation in the insurance and eCommerce sectors Opportunity to work in a collaborative and forward-thinking environment Engage in meaningful work that directly impacts business success Join a company that values work-life balance and fosters a positive team culture Comprehensive onboarding, including a dedicated Buddy program Remote work flexibility with hybrid office visits Flexible working hours Access to the latest tools and cloud-native solutions A comprehensive benefits package Employee discounts on insurance products Referral program and sports club memberships

🏢 Summary: The offer is for a Fullstack Developer role focused on building and operating reusable frontend components and backend-for-frontend services to deliver scalable digital solutions. You will develop React and Next.js applications, design and integrate APIs, and contribute plugins to a Backstage-based developer platform within an enterprise environment. The role emphasizes high-quality, secure and maintainable solutions across frontend and backend in an agile setup. 🗂️ Requirements: Degree in Computer Science or comparable qualification, 3+ years of professional software development experience, Hands-on experience with React and Next.js, Strong knowledge of JavaScript or TypeScript, Experience designing and implementing APIs, Experience with synchronous and asynchronous integrations, Understanding of security, scalability and reliability in API design, Experience integrating enterprise CMS systems, Fluent English 📃 Skills: React, Next.js, JavaScript, TypeScript, API, REST, GraphQL, Backstage, Azure, CI/CD, DevOps, Databases, Testing, Scrum 🏢 Description: What we achieve together You will design, build and operate reusable front‑end building blocks for B2B and B2C customer solutions, creating scalable and consistent digital experiences across Vaillant’s product landscape. Your responsibilities will include supporting other development teams by encapsulating reusable functionality into stable, secure and high‑performance backend‑for‑frontend services aligned with clear domain contexts. Together with your colleagues, you will contribute to our Digital Solution Platform by developing and operating plugins for our Backstage developer platform, strengthening developer experience and productivity. You collaborate closely with other developers to build, maintain and operate reusable API services that integrate data from multiple sources of truth in a structured and sustainable way. By applying your experience in Scrum and agile software development, you continuously optimise solutions for business value, quality and long‑term maintainability. Through your hands‑on contribution across frontend and backend, you help shape a modern, future‑ready digital foundation that supports Vaillant’s climate‑focused mission. What makes us successful together Qualification: You hold a degree in computer science or a comparable qualification and bring more than three years of professional experience in software development. Experience: You have hands‑on experience developing React‑based web services using Next.js and JavaScript or TypeScript, ideally in enterprise‑scale environments. Know‑how and skills: You are familiar with enterprise content management system integrations and understand the impact of security, scalability, reliability and sustainability on API design.You bring solid experience in designing and implementing APIs, ideally including complex synchronous and asynchronous integration scenarios in enterprise landscapes. Nice to have: Experience with cloud DevOps practices on Microsoft Azure, building continuous integration and delivery pipelines, working with databases and automated testing, as well as exposure to GraphQL or event‑streaming technologies, is considered an advantage. Personality: You enjoy working collaboratively in cross‑functional teams, communicate openly and reliably, and take ownership of your solutions while continuously striving for improvement. Language skills: You communicate fluently in English, enabling effective collaboration with developers and product owners in an international environment. What you can count on Flexible work model: adjustable starting times (7:30 – 9:00AM), hybrid work 70/30, and up to 30 days of remote work from abroad from selected countries. Health & Wellness support : private medical care (Medicover), sports card subsidy (Multisport), group insurance (Warta), and ergonomic office spaces. Time off & balance: additional paid 2 days off and subsidies for recreation. Financial perks: up to 30% discount on company products, support for commuting and eyewear. Growth & Development: access to internal training, mentoring programs, self-learning platform for languages (eTutor) and international projects. Culture & Community: company events, family friendly activities, and open opportunities within Vaillant Group. What makes us special We take care of a better climate. In every home and our environment. As a successful family business, we have been living up to this claim for over 150 years. We are one of the world's leading providers of heat pumps, digital services and efficient gas heating appliances and offer energy-saving solutions. You will find sustainability everywhere at the Vaillant Group. In the office, at the production sites and on the road. Around 16,000 employees from over 70 countries are committed to this every day. As an international team, we take responsibility - for our future and that of our planet. We promote your personal development so that you can act with passion and together we can ensure a better climate. Become part of the Vaillant Group and help us shape the future of heating! We promote equity and do not tolerate any form of discrimination. We value the uniqueness of each individual and encourage all people to apply.

🏢 Summary: Senior Software Engineer role focused on building and scaling backend systems for real-time and post-transaction fraud detection within a microservices, event-driven architecture. The position involves designing APIs and services, improving system reliability, and collaborating cross-functionally to deliver scalable fraud tooling. Fully remote role based in Poland with on-call responsibilities. 🗂️ Requirements: 5+ years backend development experience, Experience building scalable systems in Python or Kotlin, Experience with distributed systems, Experience with AWS cloud infrastructure, Experience with MySQL or PostgreSQL, Experience with Kubernetes, Strong system design skills, Proficiency in SQL, Experience with CI/CD pipelines, Willingness to participate in on-call rotation 📃 Skills: Python, Kotlin, AWS, MySQL, PostgreSQL, Kubernetes, SQL, CI/CD, Snowflake, dbt, Airflow, Chronosphere 🏢 Description: Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The Fraud Engineering organization builds the foundational and tactical software that enables Affirm to respond strategically to fraud—both in real time and after the transaction. Our mission is to support business growth while protecting Affirm, our buyers, and our merchants. We evaluate risk at critical decision points in the user journey, rapidly adapt to evolving fraud patterns, and equip operations teams with the tools needed to investigate and mitigate fraud at scale. We’re looking for a Senior Software Engineer to join our fully remote team based in Europe. You’ll collaborate closely with stakeholders across North America—including teams in Product, Compliance, Machine Learning, Fraud Operations, Fraud Strategy, and other Fraud Engineering teams. What You'll Do You will be responsible for owning and delivering quarterly goals for your team, leading engineers through ambiguity to solve open-ended problems, and ensuring that everyone is supported throughout delivery. You will design and implement backend services and APIs using Python or Kotlin, operating within Affirm’s microservice and event-driven architecture. You will take an active role in shaping the team’s roadmap, collaborating on technical design, and driving execution across projects that span multiple teams. You will partner with the Engineering Manager and your teammates to elevate quality standards, evolve engineering processes, and represent the team in cross-functional initiatives. You will collaborate cross-functionally with stakeholders in Fraud Ops, Compliance, Product, Machine Learning, and Analytics to build scalable fraud tooling and infrastructure. You will proactively identify opportunities to improve system reliability, team efficiency, or architecture—and lead efforts to address them. You will contribute to operational excellence by maintaining high observability standards, responding to incidents, and participating in the on-call rotation. You will foster a culture of ownership, inclusion, and craftsmanship by mentoring teammates, providing feedback, and upholding high code and design standards. On-Call Rotation - There would be an on-call rotation for this role as a requirement. What We Look For 5+ years of experience building backend systems at scale using Python or Kotlin. Experience with distributed systems and infrastructure using AWS, MySQL/PostgreSQL, and Kubernetes. Strong system design skills and a track record of delivering maintainable, extensible services. Proficiency in SQL and working with data-rich environments. Familiarity with CI/CD practices and safe production deployments. Strong written and verbal communication skills, especially in distributed teams. A proactive, ownership-driven mindset with a focus on learning and team success. Experience with Snowflake, dbt, Airflow, or Chronosphere (nice to have) Background in fraud prevention, risk systems, or post-transaction tooling. (nice to have) Experience working in the fintech sector or other highly regulated environments, with a strong understanding of risk, compliance, and operational constraints. (nice to have) Compensation & Benefits Base Pay Grade - N Equity Grade - 4 Employees new to Affirm typically come in at the start of the pay range. Affirm focuses on providing a simple and transparent pay structure which is based on a variety of factors, including location, experience and job-related skills. Base pay is part of a total compensation package that may include monthly stipends for health, wellness and tech spending, and benefits (including 100% subsidized medical coverage, dental and vision for you and your dependents). In addition, the employees may be eligible for equity rewards offered by Affirm Holdings, Inc. (parent company). POL base pay range per year: 301,000 zł  -  401,000 zł Additional benefits include: Flexible Spending Wallets for tech, food and lifestyle Away Days - wellness days to take off work and recharge Learning & Development programs Parental benefits Employee Resource & Community Groups This role is eligible for creative tax benefits, subject to applicable law and company policy Location - Remote Poland The majority of our roles can be located anywhere in Poland. This job description is not a contractual document, and is not intended to have binding force.

🏢 Summary: Technical Project Manager role leading end-to-end delivery of FinTech and data-driven technology projects, from requirements and backlog through development, UAT, deployment and stabilization. The position bridges finance, trading and operations with IT, data and BI teams, ensuring structured execution, roadmap ownership and production readiness. 🗂️ Requirements: Experience in technology project delivery roles (Technical Project Manager, Delivery Manager, Product Owner, IT Project Manager, Business Analyst), Background in IT/data/software delivery, Strong understanding of SDLC, Understanding of web applications, Understanding of APIs, Understanding of databases, Understanding of BI reporting, Understanding of system integrations, Understanding of production environments, Knowledge of finance or strong interest in trading and financial metrics, Fluent Polish (C2), English minimum B2 📃 Skills: SDLC, Web, API, Databases, BI, Integrations, Reporting, Finance, Trading 🏢 Description: Zakres odpowiedzialności ·  Prowadzenie projektów technologicznych end-to-end: od wymagań, planu i backlogu, przez development, po UAT, wdrożenie i stabilizację. ·  Zarządzanie pracą zespołu FinTech: priorytety, ownerzy, terminy, zależności, follow-up, eskalacje i kontrola dowożenia. ·  Przekładanie potrzeb finansów, tradingu, operacji i analityki na konkretne zadania dla zespołów IT, data, BI i automatyzacji. ·  Budowa i utrzymanie roadmapy: kamienie milowe, ryzyka, blokery, decyzje do podjęcia, zależności i wpływ biznesowy. ·  Zarządzanie backlogiem: user stories, acceptance criteria, definicja done, priorytetyzacja i kontrola postępu prac. ·  Koordynacja współpracy między developerami, data engineerami, data science, DevOps, analitykami i użytkownikami biznesowymi. ·  Regularne raportowanie statusu: postęp, blokery, ryzyka, decyzje, właściciele oraz plan kolejnych działań. ·  Organizacja testów akceptacyjnych, komunikacji wdrożeń, dokumentacji użytkowej i przekazania rozwiązań do pracy operacyjnej. Wymagania ·  Doświadczenie jako Technical Project Manager, Delivery Manager, Product Owner, IT Project Manager, Business Analyst lub podobna rola w projektach technologicznych. ·  Background IT/data/software delivery oraz zdolność rozmowy z zespołem technicznym bez konieczności samodzielnego programowania. ·  Dobre rozumienie SDLC, aplikacji webowych, API, baz danych, raportowania BI, integracji systemowych i środowisk produkcyjnych. ·  Wiedza finansowa lub silne zainteresowanie finansami: trading, rynki energii, P&L, cash flow, marża, ryzyko, ekspozycje i KPI zarządcze. ·  Bardzo dobra organizacja pracy: priorytety, terminy, ownerzy, ryzyka, egzekucja ustaleń, follow-up i dyscyplina projektowa. ·  Umiejętność syntetycznej komunikacji zarządczej: status, ryzyko, decyzja, termin, właściciel i wpływ biznesowy. ·  Polski C2, angielski minimum B2. Mile widziane ·  Doświadczenie w fintech, energetyce, tradingu, finansach, ERP, systemach billingowych, data platforms lub aplikacjach wewnętrznych. ·  Podstawowa znajomość SQL, Power BI, API/Swagger, Git, CI/CD, chmury lub Kubernetes na poziomie umożliwiającym pracę z zespołem technicznym. ·  Praktyka w Jira, Linear, Azure DevOps, GitHub Projects, Confluence lub podobnym narzędziu do zarządzania backlogiem i dokumentacją. ·  Doświadczenie w pracy z Data Engineerami, Data Scientistami, developerami, DevOps i użytkownikami biznesowymi. Co oferujemy ·  Realny wpływ na rozwój zespołu FinTech, wewnętrznych platform technologicznych, procesów danych i automatyzacji biznesowych. ·  Pracę na styku IT, danych, finansów, tradingu i operacji, z ekspozycją na decyzje biznesowe i priorytety zarządcze. ·  Duży zakres ownershipu: od organizacji pracy projektowej, przez priorytetyzację, po wdrożenia i stabilizację rozwiązań. ·  Środowisko, które oczekuje odpowiedzialności, jasnej komunikacji, dobrej organizacji i konsekwentnego dowożenia efektów.