Backend Software Engineer - Core Domain

Backend Software Engineer - Consumer Wealth DomainAbout SatispayAt Satispay, we are dedicated to transforming the way people handle payments, ensuring they are simple, fair, and accessible. Our mission extends beyond payments; we aim to redefine the future of money itself. Join a movement that empowers millions, where each team member contributes to tackling significant challenges. We are just beginning this journey.As part of the Business Team, you will help businesses optimize their financial operations through Satispay. We are responsible for the financial backbone, encompassing fees, payouts, invoicing, compliance, and more. If a business relies on Satispay for timely and accurate payments, our team is the driving force behind it.We thrive in a fast-paced environment, encourage bold thinking, and foster a culture of trust and collaboration. If you seek more than a job and wish to make a meaningful impact alongside a talented team, look no further.Your ResponsibilitiesAs a Backend Software Engineer in the Consumer Wealth team, you will play a critical role in developing services that enable our users to save and invest effectively. You will focus on crucial features that simplify wealth management and help millions achieve their financial aspirations. Your daily activities will include:Feature Lifecycle Management: Design, build, test, and maintain backend services for savings and investment products—from conception to production—utilizing Java, Spring Boot, and PostgreSQL.Develop Scalable Wealth Products: Create and sustain essential functionalities, including the 'Invested Money Box', automated savings goals, and investment portfolios, ensuring reliability and consistency in transactions.Manage Modern Tech Stack: Oversee our AWS-based infrastructure (EC2/ECS, S3, Lambda, Kinesis) and contribute to architectural enhancements for seamless integration across wealth-related microservices.AI-Driven Solutions: Utilize AI tools to write and optimize code, accelerate root cause analysis, and create documentation, elevating engineering efficiency.Address Complex Financial Challenges: Transform financial requirements into scalable technical solutions, balancing speed with the accuracy necessary for wealth management.Cross-Functional Collaboration: Engage with Product and UX teams to ensure quality and alignment with business objectives.

About SatispaySatispay is transforming the payment landscape by making everyday transactions simple, fair, and accessible to all. Our vision extends beyond just payments; we strive to reshape the future of money itself.Join a movement that empowers millions, where our collective ambition drives us to tackle significant challenges. At Satispay, we embrace agility, bold thinking, and a culture of trust that encourages questioning the status quo, fostering an environment of continuous learning and growth.As part of the Core Team, you will work on vital systems including external bank interactions, payment orchestration, and foundational infrastructure for Identity and Access Management (IAM). The team also oversees risk-related services, notably credit risk management and fraud detection.If you are eager to contribute to impactful projects that lay the groundwork for all our product teams, you’ve come to the right place.Your RoleAs a Senior Backend Software Engineer within our Core Team, you will be instrumental in engineering the backbone of our payment platform. You will ensure the technical excellence and timely delivery of complex systems that affect various services and product teams across the organization.Your daily responsibilities will include:Engineering Core Platform Domains: You will play a key role in designing and evolving our most critical systems, such as the Transaction Ledger, Identity & Access Management (IAM), and Payment Orchestration, ensuring high performance, scalability, and functionality for integration by product teams.Scaling Risk & Financial Engines: You will enhance and implement services dedicated to bank integrations, credit risk assessment, and real-time fraud detection, building robust logic to protect our data integrity and secure Satispay’s financial ecosystem.Cross-Team Technical Leadership: You will lead technical analyses for projects that cross multiple services, spearhead technical discussions, and create high-quality documentation (Smart Papers) to ensure your designs are robust and well understood by stakeholders and engineering teams.Promoting Engineering Excellence: You will maintain technical quality through rigorous testing strategies and ensure safe rollouts, contributing to our commitment to excellence.

Backend Software Engineer - Consumer Growth TeamAbout SatispaySatispay is on a mission to transform everyday payments, making them simple, equitable, and accessible for all. Our vision extends to shaping the future of finance, empowering millions with innovative solutions to tackle significant challenges. Join us in this exciting journey as we continue to grow and make an impact.As part of our Business Team, you'll help businesses optimize their finances through Satispay's services. We manage the financial core, encompassing fees, payouts, invoicing, compliance, and more, ensuring that businesses receive timely and accurate payments.We value speed, bold thinking, and mutual trust, fostering an environment where challenging the status quo is encouraged as we learn and evolve together. If you seek more than just a job and want to build something meaningful with a talented team, you’ve found the right place.Your RoleAs a Backend Software Engineer within the Consumer Growth Team, you will be instrumental in creating the future of digital payments by designing and implementing scalable features that drive user growth. Your responsibilities will include:Overseeing the Story Lifecycle: Take complete ownership of the entire lifecycle—from technical design to production deployment—ensuring product stories are robust, scalable, and align with user needs.Enhancing Activation & Trust: Develop and optimize high-reliability systems for onboarding, document verification, and security processes, ensuring users can transact safely within minutes.Boosting Engagement & Discovery: Improve the app experience by creating essential backend services for shop discovery, transaction management, and personalized consumer journeys via CRM integrations.Scaling Loyalty & Monetization: Contribute to our subscription plans, referral initiatives, and loyalty mechanisms (points and rewards), establishing a technical framework for long-term user retention.Mastering a Modern Tech Stack: Manage our AWS-based infrastructure (EC2/ECS, S3, Lambda, Kinesis) and engage in architectural advancements across our growth-oriented microservices.Collaborating in an AI-Driven Environment: Utilize AI technologies to enhance user experiences and drive innovation.

Backend Software Engineer - Consumer Features DomainAbout SatispaySatispay is on a mission to transform everyday payments, making them straightforward, equitable, and accessible to all. As we continue to innovate, our vision extends to shaping the future of finance. We empower millions of individuals through a collective purpose to address significant challenges, and we’re just getting started.Joining our Business Team means being part of a group dedicated to enhancing business finances through Satispay. We manage the financial framework that includes fees, payouts, invoicing, compliance, and everything in between. If a business counts on Satispay for accurate and timely payments, our team ensures it happens.We thrive in a fast-paced environment, embrace bold thinking, and support each other in challenging the status quo while learning and evolving together. If you're seeking more than just a job—if you aspire to create something meaningful with a talented group—you've found your place.Your ResponsibilitiesAs a Backend Software Engineer in the Consumer Features team, you will be instrumental in developing and scaling the services our users engage with every day. You will focus on critical features that enhance app engagement, boost transaction volumes, and streamline financial management for millions of users. Here’s what your daily activities will include:End-to-End Lifecycle Management: Design, build, test, and maintain essential consumer features—from technical design to production—utilizing Java, Spring Boot, and PostgreSQL.Develop & Scale High-Impact Features: Create and sustain core functionalities such as our BNPL (

About SatispaySatispay is on a mission to transform everyday payments by making them straightforward, equitable, and accessible for everyone. Our vision extends even further as we aim to redefine the future of financial transactions. As a collective, we empower millions of individuals, united by a common goal to address significant challenges in the payments landscape. We are just beginning this exciting journey.Joining the Core Team means you'll be working on pivotal systems that manage interactions with external banking institutions, orchestrate seamless payments, and establish the critical infrastructure for Identity and Access Management (IAM). Our team also oversees vital risk management services, including credit risk assessment and fraud detection.We thrive in a fast-paced environment, embracing bold ideas and trusting one another to challenge conventions, fostering a culture of continuous learning and growth. If you seek more than just a job – if you aspire to create something meaningful alongside a skilled team – you have found the right place.Your Role and ResponsibilitiesAs a Staff Software Engineer within the Core Team, your contributions will be vital in shaping the infrastructure of our payment platform. You will engage with mission-critical systems that drive Satispay, guaranteeing reliability, consistency, and security for millions of users.Your daily tasks will include:Defining Technical Strategy: You will outline the long-term technical direction for our core domains, architecting complex subsystems that underpin the entire organization while balancing cross-product demands with the need for exceptional speed and dependability.Architecting Core Financial Systems: You will engineer and scale high-throughput engines that manage our transaction ledger, payment orchestration, and integrate with external banks, ensuring our data remains accurate and readily accessible.Owning Identity & Security Infrastructure: You will establish the foundational infrastructure for Identity and Access Management (IAM), building and maintaining the authentication and authorization layers to safeguard our users.Engineering Risk & Fraud Solutions: You will devise and enhance sophisticated services aimed at managing credit risk and fraud detection, implementing real-time protection mechanisms for the company.Providing Technical Thought Leadership: You will play a key role in the product development lifecycle, actively defining requirements and guiding the team through complex challenges.

About SatispaySatispay is on a mission to transform everyday transactions by making payments simple, equitable, and accessible to everyone. Our vision is not just about payments; we aim to redefine the future of finance. We empower millions of individuals, united by a common goal to address significant challenges. And we are just beginning our journey.We embrace speed, bold thinking, and mutual trust, encouraging each other to challenge the norm while learning and evolving along the way. If you seek more than just a job – if you aspire to create something impactful with a talented group – you’ve found the right place.Your RoleAs a Staff Software Engineer within the Consumer Wealth team, you will play a pivotal role in shaping how our users save and invest. You’ll be the key technical resource in the Consumer domain, leading initiatives that enable millions to enhance their financial health through our savings products, invested money box, and investment solutions.Your daily responsibilities will include:Defining Technical Strategy: Establish the technical strategy for the Consumer Wealth domain, architecting complex subsystems that enhance savings and investment features, while considering cross-product impacts.Advancing Architecture: Design and develop scalable, high-quality systems that tackle intricate financial engineering challenges, simplifying complex back-end systems for effective savings and wealth management.Technical Thought Leadership: Foster relationships across the organization to ensure technical alignment, represent our technical vision both externally and internally, and stay ahead of emerging trends in FinTech and wealth management.Developing Talent: Nurture the next generation of technical leaders while promoting a culture of excellence in engineering and continuous improvement.Generating Impact: Contribute significantly to user wealth growth and financial goal attainment through your work on the Consumer Wealth back-end infrastructure, directly supporting Satispay's mission.Expect challenges, collaboration, and the freedom to bring your innovative ideas to fruition. Our technology stack includes PostgreSQL, Java, and Spring Boot, with AWS powering our infrastructure through microservices deployed on EC2/ECS.

Backend Software EngineerAbout SatispayFounded to transform everyday transactions, Satispay is dedicated to making payments simple, equitable, and universally accessible. Our vision extends beyond just payments; we aim to redefine the future of money itself. As part of a movement that empowers millions, we are united by a common goal to tackle significant challenges. And this is only the beginning of our journey.We value speed, bold thinking, and mutual trust, fostering an environment where challenging the status quo is encouraged, and growth is continuous. If you aspire to contribute to something meaningful with a talented team, you've found the right opportunity.Your ResponsibilitiesAs a Backend Software Engineer, you will be instrumental in shaping the landscape of digital payments by designing and developing scalable, high-performance systems. Your daily tasks will include:Manage the Story Lifecycle: Oversee the complete lifecycle of user stories from inception to production, ensuring all requirements are fulfilled.Drive Technical Excellence: Perform technical analyses for standard projects and implement resilient, scalable backend solutions.Develop Technical Leadership: Begin mentoring peers and junior staff, particularly in technical implementations, while ensuring that the service/component-level technical vision aligns with the roadmap.Guarantee Quality and Stability: Provide accurate effort estimates and promptly address blockers. Participate in incident resolution, including root cause analysis and preventive measures, ensuring transparency in your technical scope.Document and Collaborate: Prepare detailed technical documentation for developed features and engage with stakeholders.Anticipate challenges, enjoy collaboration, and have the freedom to bring your innovative ideas to fruition. Our technology stack includes (but is not limited to) PostgreSQL, Java, and Spring Boot. We utilize AWS for our infrastructure, deploying microservices on EC2/ECS, S3 for storage, AWS Lambda for serverless functions, and leveraging Kinesis and ElasticSearch for log streaming. You will take ownership of your projects from start to finish.

About SatispayAt Satispay, we are redefining everyday transactions, making them straightforward, equitable, and accessible to everyone. Our vision extends beyond payments; we aim to pioneer the future of monetary transactions.As a movement, we empower millions by uniting under a common mission to address significant challenges. Our journey has just begun. We embrace speed, bold thinking, and mutual trust, encouraging each other to break boundaries while continuously learning and evolving.If you're in search of more than just a job, and aspire to create something meaningful with a talented team, you've found your place.ResponsibilitiesAs a Senior Backend Software Engineer within the Business Team, you will be pivotal in shaping the future of digital welfare payments. Your role encompasses everything from employer benefits to intricate products, ensuring a seamless journey for both employers and employees while maintaining long-term satisfaction. You will guide the technical direction, quality, and delivery of complex systems that enhance services across teams, empowering thousands of employers to manage their corporate welfare effectively. Your daily tasks will include:Develop Multi-Service Solutions: Lead the technical analysis for medium to large projects impacting multiple services in the Employer domain. You will design comprehensive, highly-available solutions with a focus on scalability, security, and maintainability, integral to our welfare core products.Uphold Technical Excellence: You will implement rigorous testing strategies, balancing automation with manual processes, and oversee gradual rollouts with careful monitoring to maintain precision and reliability in welfare distributions.Identify and Resolve Challenges: Proactively foresee and address technical blockers, fostering knowledge sharing throughout your organization. You'll tackle the unique challenges of B2B registration flows and high-volume benefit distributions while ensuring code quality through active reviews.Ownership and Execution: Take full ownership of your projects, delivering features that truly cater to user needs—from the moment an employer signs up to when an employee utilizes their welfare benefits—through efficient back-end integration.Mentorship: Provide mentorship and technical support to junior and mid-level engineers, significantly contributing to their professional development.

Join our innovative team at Casavo as a Senior Backend Engineer, where you'll play a pivotal role in designing and implementing high-performance backend solutions. You will work closely with cross-functional teams to deliver exceptional products that enhance our users' experience.

fiskaly develops technology that secures digital receipts and ensures legally compliant transactions for millions of users each day. By applying digital signatures, the company helps prevent tax fraud and supports merchants with a streamlined, paperless solution. The team is dedicated to simplifying receipts for everyone. Role overview This Senior Backend Engineer (Golang) position is a full-time, permanent role open to candidates based in or near Vienna, or within a two-hour time zone difference. The company is not considering freelancers for this role. What you will do Serve as a System Architect within a focused squad, developing API-first SaaS products. Lead backend development using Golang and other object-oriented languages, contributing throughout the software lifecycle. Apply modern tools, including AI coding assistants and automation, to minimize repetitive tasks and tackle complex problems. Design, build, and maintain distributed systems for fiskaly's fiscalization platform. Shape the architecture and scalability of the unified digital receipts interface. Requirements Minimum 5 years of backend development experience, with a strong background in Golang and object-oriented programming. Fluency in both German and English. Located in or near Vienna, or within a two-hour time zone difference. Available for full-time employment (no freelance contracts). Salary and contract Gross annual salary: €45,000 – €70,000 Full-time, permanent position

Lexroom builds AI-driven solutions for legal professionals, aiming to set a new standard for efficiency and productivity in the legal sector. Based in Milan, the team focuses on empowering lawyers, law firms, and corporations through advanced technology. Lexroom’s vision is to become Italy’s most innovative AI firm and to raise the bar for B2B sales excellence. The company values collaboration and growth, encouraging team members to take on meaningful challenges and contribute directly to products that reshape how legal practitioners work. What you will do Design and develop scalable APIs and backend services using Python, working with Django or FastAPI. Take ownership of backend architecture, from data modeling through deployment. Optimize database performance across SQL, NoSQL, and vector storage to support AI-driven features. Build and refine backend services that integrate LLM and NLP capabilities into Lexroom’s platform. Work closely with frontend and product teams to define and maintain clear API contracts. Uphold strong engineering practices through code reviews, testing, and CI/CD workflows. Requirements Proficiency in Python and experience with Django or FastAPI. Strong grasp of database design and optimization. Experience with cloud services and deployment processes. Comfort working collaboratively within a team setting. Why join Lexroom? Be part of a team leading AI transformation in the legal industry. Collaborate with experienced professionals in a creative, growth-focused environment. Directly influence how legal work is done worldwide. Lexroom offers a path filled with learning, impact, and purpose for those ready to help shape the future of legal technology.

fiskaly is looking for a Staff Backend Engineer with strong Golang experience. This position focuses on designing, building, and maintaining scalable backend services that form the foundation of fiskaly’s products. Collaboration with colleagues from various teams is a key part of the role, with a shared goal of improving system performance and setting technical standards. Locations Berlin, Germany Madrid, Spain Milano, Italy Vienna, Austria What you will do Design, develop, and maintain backend services using Golang Work closely with teams across disciplines to deliver reliable solutions Drive improvements in system performance Help establish and promote technical quality and best practices within the backend team

Join our dynamic team at docplanner as a Backend Engineer focusing on AI integration! We are looking for innovative minds who are passionate about technology and eager to contribute to the healthcare sector using artificial intelligence. In this role, you will work closely with cross-functional teams to develop robust backend systems that enhance our AI capabilities and improve user experiences.

Join Us in Empowering Global Connections!At Kong, we value diverse experiences and encourage you to apply even if you don’t meet every single requirement. We're searching for candidates who are particularly strong in certain areas while displaying interest and capabilities in others.Role Overview:As a vital member of our Runtime Organization, you will contribute to the development of our Data Plane products, which serve as the cornerstone of our API platform: Kong Gateway, Kong AI Gateway, Kong Mesh, and Kong Event Gateway. We are seeking a proactive Staff Engineer specializing in security to enhance the security across our Data Plane offerings, collaborating with various engineering teams to fortify our code and infrastructure. This hands-on technical leadership position requires a unique combination of deep technical knowledge and outstanding communication skills.Key Responsibilities:Serve as a bridge between the Kong Runtime engineering teams and the security organization to define innovative requirements for the security roadmap.Promote security best practices throughout the Kong Runtime engineering organization.Research, design, implement, and maintain security-oriented frameworks and features aimed at hardening Kong’s Data Plane and safeguarding our customers.Provide routine security engineering designs and conduct code reviews for sensitive pathways.Dismantle complex challenges into manageable tasks while swiftly prototyping and contributing to security initiatives through agile methodologies.Mentor and coach Kong Runtime engineers on security best practices..Qualifications:8+ years of experience in leading teams to develop, deliver, and maintain sophisticated software solutions, with a strong emphasis on security.Proficiency in Golang or Rust.In-depth knowledge of security across all levels of the TCP/IP stack.Solid grasp of concepts such as Test-Driven Development, Secure SDLC, and Secure Code Reviews, along with the ability to identify and mitigate threats and vulnerabilities in code and infrastructure.Familiarity with cloud service providers like AWS and GCP.

Join Us in Powering Global Connections!At Kong, we believe that innovation knows no bounds. If you’re excited about the prospect of transforming how businesses interact with AI technologies, we invite you to apply. Don’t worry if you don't meet every single qualification; we value diverse experiences and are eager to find strong candidates who can grow with us.Your Role:As a Senior Software Engineer in our AI Gateway Team, you will play a pivotal role in developing the Kong AI gateway, which empowers organizations and developers worldwide to manage every aspect of their AI and LLM innovations. You will be responsible for key functionalities such as multi-LLM routing, semantic caching, and much more.Your Responsibilities:Design, develop, and maintain software for API management tailored for AI and LLMs.Architect innovative features, including proxy capabilities and load balancing, to expand Kong AI Gateway’s offerings.Troubleshoot bugs, optimize performance, and implement low-level enhancements.Bridge the gap between Kong and third-party deployment tools.Mentor junior team members, fostering their growth and development.Execute additional tasks as assigned by management.Your Qualifications:A minimum of 5 years of experience in server-side application programming.Proven experience in designing, prototyping, and building scalable applications.Strong technical skills in Linux systems troubleshooting and profiling.Expertise in distributed systems, Linux networking, and programming related to API transport protocols.Ability to work seamlessly in a remote, distributed team environment.Excellent communication skills, both verbal and written; documentation is a key aspect of the role.Familiarity with AI and LLM concepts is a plus.

Position Overview:Are you passionate about creating exceptional products? As a Senior Software Engineer at accesso, you will collaborate with a talented team of engineers, leveraging your skills to enhance the accesso Horizon ticketing and visitor management system. This platform boasts a comprehensive feature set, global functionality, and robust scalability, enabling attractions to streamline their ticket sales, distribution, and redemption processes. Location: Based in Milan, Italy, this role primarily requires in-office presence, but we offer a flexible hybrid schedule allowing you to work from home 1-2 days a week.Reports to: Software Development ManagerTravel Requirement: Up to 20%. While travel is infrequent, occasional visits to accesso client sites may be necessary, and this travel could be global.

Role overview Speechify is looking for a Software Engineer focused on Data Infrastructure & Acquisition in Milan. This role involves designing and building systems that handle how data is acquired and processed. The work plays a key part in scaling and refining Speechify’s data operations. What you will do Design and implement data infrastructure to support acquisition and processing needs Develop systems that boost efficiency and reliability in data workflows Contribute to ongoing improvements as data requirements expand Location This position is based in Milan, Italy.

Are you ready to empower global connectivity?If you feel you don’t meet all the qualifications listed below but are eager to apply, we encourage you to do so. We value diverse experiences and are interested in candidates who excel in specific areas while demonstrating a willingness to grow in others.About the RoleAs a Software Engineer at Kong, you will be instrumental in the development and maintenance of our innovative API gateway and cloud-native connectivity solutions. You will contribute to high-performance software that enables organizations to adeptly manage APIs and microservices across various environments: cloud, on-premise, and hybrid.At Kong, we are pioneering API connectivity with both open-source and enterprise-grade solutions that serve some of the most demanding applications globally. Our flagship products, Kong Gateway Operator and Kong Ingress Controller, facilitate seamless, secure, and intelligent service connectivity for modern infrastructure, including Kubernetes, multi-cloud, and service mesh deployments. If you are passionate about distributed systems and cloud-native technologies and are eager to expand your expertise in high-performance APIs, we would love to connect with you!What You’ll Be DoingContributing to the development and upkeep of Kong’s Gateway Operator and Ingress Controller to ensure optimal reliability and performance.Delivering tasks that meet acceptance criteria, working on moderate-scope problems requiring analysis of various factors.Writing clear, maintainable, and thoroughly tested code in Golang, ensuring code quality through automated testing and engaging in peer reviews.Collaborating with cross-functional teams (engineering, product, DevOps) to create new features and foster effective internal relationships.Participating in the design of components within a larger system, understanding trade-offs of different approaches and articulating your reasoning.Debugging and resolving issues within your area of the codebase, exercising judgment within established procedures and practices.Engaging with the open-source community under the mentorship of senior team members.What You’ll Bring1-2+ years of professional software engineering experience (or equivalent).Strong proficiency in Golang (or strong proficiency in C/C++/Java/Python with a willingness to learn Golang).

Are you excited to enhance global connections?At Kong, we believe in the power of collaboration. If you feel you may not meet every requirement listed below but are enthusiastic about this opportunity, we encourage you to apply. We're seeking candidates who excel in key areas while having an interest in others.About the Role:Join our rapidly expanding Event Gateway team at Kong, where we are revolutionizing how events interact with our platform. As developers and architects leverage Kong's Event Gateway for diverse applications, your contributions will help shape our product through valuable feedback.As a Software Engineer on the Event Gateway team, you will focus on developing core functionalities, beginning with the Kafka proxy and later branching out to MQTT, AMQP, and additional event protocols. You'll collaborate closely with engineers from various runtimes and the Konnect SaaS platform.Your Responsibilities:Design and maintain a high-performance Kafka protocol proxy.Architect, design, and implement innovative features to enhance the Event Proxy's capabilities.Troubleshoot bugs, optimize performance, and conduct low-level enhancements.Collaborate with other data plane engineers to elevate the Kong runtime platform.Complete additional tasks as assigned by your manager.What You Bring:A minimum of 2 years of experience in server-side applications and components.At least 2 years of Rust programming experience, with a solid grasp of async Rust.Proven experience in distributed systems and Linux networking, with an understanding of L7 and L4 APIs and protocols.Ability to thrive in a remote, distributed team environment.A strong sense of ownership and excellent communication skills, both verbal and written, as documentation is a key aspect of our engineering culture.Bonus Points:Practical experience with Tokio.Contributions to Rust open-source projects.Hands-on experience with various event-driven architectures.