backend engineer

Workato

<div>
 
 About Workato
 
 
 
 Workato delivers enterprise infrastructure for the agentic era, redefining iPaaS and helping enterprises unify data, applications, processes, and AI into a single, governed platform. A leader in Enterprise MCP and trusted by 50% of the Fortune 500, Workato&rsquo;s cloud-native architecture connects every application, data source, and process to power real-time orchestration at scale. With enterprise-grade security and continuous innovation at its core, Workato provides the trusted foundation for organizations to automate with confidence and operationalize AI across the business. To learn more, visit www.workato.com
 
 
 
 Why join us?
 
 
 
 Ultimately, Workato believes in fostering a
 
 flexible, trust-oriented culture that empowers everyone to take full ownership of their roles
 
 . We are driven by
 
 innovation
 
 and looking for
 
 team players
 
 who want to actively build our company.
 
 
 But, we also believe in
 
 balancing productivity with self-care
 
 . That&rsquo;s why we offer all of our employees a vibrant and dynamic work environment along with a multitude of benefits they can enjoy inside and outside of their work lives.
 
 
 If this sounds right up your alley, please submit an application. We look forward to getting to know you!
 
 
 
 Also, Feel Free To Check Out Why
 
 
 
 <ul>
 <li>
 Business Insider named us an &ldquo;enterprise startup to bet your career on&rdquo;
 </li>
 <li>
 Forbes&rsquo; Cloud 100 recognized us as one of the top 100 private cloud companies in the world
 </li>
 <li>
 Deloitte Tech Fast 500 ranked us as the 17th fastest growing tech company in the Bay Area, and 96th in North America
 </li>
 <li>
 Quartz ranked us the #1 best company for remote workers
 
 
 </li>
 </ul>
 
 Responsibilities
 
 
 
 We are looking for a
 
 Staff AI Engineer
 
 to play a key role in building the core of our AI platform. In this position, you will design and develop production-grade systems that power intelligent automation, agentic workflows, and large-scale retrieval services. This is a highly technical, hands-on role that involves close collaboration with product and platform teams to transform advanced AI concepts into reliable, scalable, and secure solutions used across our enterprise ecosystem. You will also be responsible to:
 
 
 <ul>
 <li>
 Design, build, and maintain AI-powered services and APIs, leveraging LLMs (OpenAI, Anthropic, Qwen, OSS models) and custom ML models.
 </li>
 <li>
 Develop an enterprise-grade agentic framework that enables orchestration, retrieval, and collaboration between multiple AI agents.
 </li>
 <li>
 Implement and optimize knowledge retrieval systems and agentic search capabilities using vector databases such as Qdrant and ElasticSearch.
 </li>
 <li>
 Write well-structured, efficient, and testable Python code for production services, experimentation, and internal developer tools.
 </li>
 <li>
 Build and maintain shared Python libraries and SDKs used across multiple applications and microservices.
 </li>
 <li>
 Collaborate with cross-functional teams on architecture, internal protocols, and API standards to ensure consistency and reliability across the platform.
 </li>
 <li>
 Develop and enhance monitoring, validation, and observability for production-grade AI solutions.
 </li>
 <li>
 Drive the full software development lifecycle - from design and implementation to deployment, monitoring, and continuous improvement.
 </li>
 <li>
 Identify and resolve performance bottlenecks, reliability issues, and scaling challenges in complex, data-intensive environments.
 </li>
 <li>
 Participate in code reviews and technical discussions, mentoring other engineers and contributing to a culture of excellence.
 
 
 </li>
 </ul>
 
 Example Projects
 
 
 
 <ul>
 <li>
 Building an evaluation and observability framework for AI model performance and reliability.
 </li>
 <li>
 Developing an agentic orchestration platform that enables collaboration among multiple AI agents and tools.
 </li>
 <li>
 Implementing semantic retrieval and agentic search capabilities over large enterprise knowledge bases.
 </li>
 <li>
 Designing AI services that process and reason over high-volume real-world data at scale.
 
 
 </li>
 </ul>
 
 Requirements
 
 
 
 
 Qualifications / Experience / Technical Skills
 
 
 
 <ul>
 <li>
 Bachelor&rsquo;s or Master&rsquo;s degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
 </li>
 <li>
 5+ years of experience as a Software Engineer, with strong proficiency in Python.
 </li>
 <li>
 Proven track record of building and maintaining production-grade systems using Python.
 </li>
 <li>
 Strong understanding of distributed systems, API design, and data-driven architectures.
 </li>
 <li>
 Experience with relational and non-relational databases (PostgreSQL, Elastic, Qdrant, or similar).
 </li>
 <li>
 Familiarity with AI/ML system design, including LLM integration and evaluation pipelines.
 </li>
 <li>
 Knowledge of DevOps and observability practices (CI/CD, monitoring, metrics, and model validation).
 </li>
 <li>
 Python
 </li>
 <li>
 FastAPI
 </li>
 <li>
 LLM APIs (OpenAI, Anthropic, Qwen, OSS)
 </li>
 <li>
 LiteLLM
 </li>
 <li>
 Qdrant
 </li>
 <li>
 PostgreSQL
 </li>
 <li>
 ElasticSearch
 </li>
 <li>
 Langfuse
 </li>
 <li>
 Kubernetes
 </li>
 <li>
 GitHub Actions
 </li>
 <li>
 ArgoCD
 
 
 </li>
 </ul>
 
 Preferred Skills
 
 
 
 <ul>
 <li>
 Experience working with multiple LLM providers (OpenAI, Anthropic, Qwen, open-source models).
 </li>
 <li>
 Background in developer platforms or AI infrastructure services.
 </li>
 <li>
 Familiarity with vector databases, semantic retrieval, and knowledge graph architectures.
 </li>
 <li>
 Exposure to Langfuse, LiteLLM, LangChain, or similar frameworks.
 </li>
 <li>
 Experience developing enterprise-scale SaaS or distributed backend systems.
 </li>
 <li>
 Contributions to open-source projects in Python, AI, or infrastructure engineering.
 
 
 </li>
 </ul>
 
 Soft Skills / Personal Characteristics
 
 
 
 <ul>
 <li>
 Excellent communication skills, with the ability to convey complex technical ideas clearly to both technical and non-technical audiences.
 </li>
 <li>
 Collaborative and proactive approach, comfortable working across teams in a dynamic environment.
 </li>
 <li>
 Strong analytical and problem-solving abilities, with a focus on continuous improvement and innovation.
 </li>
 <li>
 Curiosity and a genuine interest in emerging AI technologies and modern backend architectures.
 
 
 </li>
 </ul>
 
 (REQ ID: 2460)
 
</div>

Staff AI Engineer

Katanox

<div>
 
 About Katanox
 
 
 
 
 
 Katanox is building the infrastructure layer for hospitality: software that connects hotels and travel buyers and moves money between them. Our platform brings&nbsp;
 
 distribution and payments
 
 &nbsp;into one workflow (contracting, connectivity, reconciliation, and settlement), so partners can operate with less fragmentation and fewer manual handoffs.
 
 
 
 
 
 For engineers, this means building reliable systems that handle complex B2B workflows and real financial constraints, with a focus on data integrity, auditability, security, and operational excellence. We&rsquo;re headquartered in Amsterdam with hubs in London and New York.
 
 
 
 
 
 Why join Katanox
 
 
 
 
 <ul>
 <li>
 
 Build software that moves real money
 
 : Work on Kotlin services that sit on the critical path for payments, reconciliation, and settlement.
 </li>
 <li>
 
 Solve hard problems, end-to-end
 
 : Own outcomes across data models, APIs, and the production realities (observability, reliability, compliance).
 </li>
 <li>
 
 High-trust team, high standards
 
 : Direct communication, strong engineering fundamentals, and a bias toward shipping and learning.
 </li>
 <li>
 
 In-person collaboration (hub model)
 
 : We do our best work together, spending regular time in Amsterdam, London, or New York to move faster and build trust.
 </li>
 <li>
 
 Growth-stage ownership
 
 : The surface area is big, and the team is lean; your decisions will shape the platform.
 </li>
 </ul>
 
 
 
 
 How we work
 
 
 
 
 
 A cornerstone of our culture is in‑person collaboration. We follow a &ldquo;hub&rdquo; model with unique hubs in Amsterdam, London, and New York, where we regularly collaborate face‑to‑face, onboard customers and colleagues, hold design sessions, and host events.
 
 
 
 
 
 We do not hire for strictly remote roles. We expect people to spend meaningful time in our hubs because this is how we maintain our culture, build trust, and move quickly together.
 
 
 
 
 
 We&rsquo;re also a&nbsp;
 
 financially regulated
 
 &nbsp;company. That means high standards for security, auditability, and decision-making. This means your work ships with the rigor and reliability you&rsquo;d expect from systems that move real money.
 
 
 
 
 
 Our values
 
 
 
 
 
 At Katanox, our values are the blueprint for how we work together and build our product.
 
 <ul>
 <li>
 
 Team over the individual, no ego:&nbsp;
 
 We prioritize the success of the whole team over individual agendas. We win together, share credit, and leave egos at the door.
 </li>
 <li>
 
 Data beats excitement:&nbsp;
 
 We welcome bold ideas, but we commit based on evidence. We use data, experimentation, and clear hypotheses to decide what to build.
 </li>
 <li>
 
 Dare to do:&nbsp;
 
 We are proactive, take smart risks, and move from talking to doing. We learn by shipping and improve through iteration.
 </li>
 <li>
 
 See it, own it, and close it:&nbsp;
 
 When we spot a problem or opportunity, we take responsibility to drive it to completion instead of assuming someone else will.
 </li>
 <li>
 
 We apply radical candor:&nbsp;
 
 We care personally and challenge directly. We give and receive honest feedback so we can grow faster as individuals and as a team.
 </li>
 <li>
 
 In person first, call second:&nbsp;
 
 We prioritize in‑person collaboration in our hubs to build trust, move quickly, and solve hard problems together.
 </li>
 <li>
 
 Build collaboratively:&nbsp;
 
 We actively involve the right people, share context early, and co‑create solutions across teams and disciplines.
 </li>
 <li>
 
 Iterate fast and pragmatically:&nbsp;
 
 We ship small, learn quickly, and avoid over‑engineering. We focus on solutions that work in reality, not just in theory.
 </li>
 </ul>
 
 
 
 
 About the role
 
 
 
 
 
 You'll work on the backend systems at the core of Katanox. These are the services that move money between hotels, travel buyers, and payment networks, and the infrastructure that keeps bookings, pricing, and reconciliation consistent across a fragmented industry. Expect to ship Kotlin services that handle real transactions, in real time, for real customers.
 
 
 
 
 
 This role is for someone who likes ownership and depth. You'll help shape architecture with other engineers, ship iteratively, and raise the bar for reliability and correctness in a regulated environment where a missed event is a failed reservation or a misrouted payout.
 
 
 
 
 
 What you will work on
 
 
 
 
 <ul>
 <li>
 Building distributed systems that move real money and real bookings between hotels, the world's largest travel agents, and payment networks, where a dropped event isn't a bug ticket, it's a failed reservation or a misrouted payout.
 </li>
 <li>
 Designing and operating high-availability components in a regulated environment, where "it usually works" isn't good enough. Think idempotency, exactly-once semantics, graceful degradation, and the kind of observability that lets you sleep at night.
 </li>
 <li>
 Working on the parts of the platform where scale is non-trivial: millions of searches per day, connectivity to a long tail of supplier and acquirer systems, and pricing/availability flows that have to stay correct under load.
 </li>
 <li>
 Going deep on a single domain (payments, distribution, contracting, reconciliation) while still understanding how the whole platform fits together, because the interesting problems at Katanox usually sit at the seams between two of them.
 </li>
 <li>
 Shaping architecture decisions, not just implementing them. We're still early enough that the choices you make this quarter will be load-bearing for years to come.
 </li>
 <li>
 Owning what you ship end-to-end: design, build, deploy, monitor, and improve. No throw-it-over-the-wall culture.
 </li>
 </ul>
 
 
 
 
 What we are looking for
 
 
 
 
 <ul>
 <li>
 You've built and operated production systems that mattered. Ideally distributed, ideally with real availability and consistency requirements. You know the difference between "passes the tests" and "behaves well at 3 am on a Sunday."
 </li>
 <li>
 Strong Kotlin or Java experience, and you're opinionated about why. You care about code that's simple, testable, and boring in the best way.
 </li>
 <li>
 You enjoy reasoning about hard problems like concurrency, failure modes, data consistency, system boundaries, and you can turn ambiguous business requirements into something that actually works.
 </li>
 <li>
 You want to work with smart, low-ego people who push you. We hire for genuine curiosity and craft, not credentials, and we expect you to make the people around you better.
 </li>
 <li>
 You're genuinely interested in the domain. Payments and travel distribution are messy, regulated, and full of edge cases. If that sounds tedious rather than interesting, this probably isn't the right role.
 </li>
 <li>
 You take ownership. When something is broken or unclear, you pick it up rather than file it under "someone else's problem."
 </li>
 <li>
 Solid fundamentals: data structures, algorithms, system design, testing.
 </li>
 <li>
 Fluent in English.
 </li>
 </ul>
 
 
 
 
 Tech stack snapshot
 
 
 
 
 <ul>
 <li>
 Backend: Kotlin, Ktor, Arrow-kt, Jooq, Postgres
 </li>
 <li>
 Frontend: React
 </li>
 <li>
 Infra: AWS, K8S
 </li>
 </ul>
 
 
 
</div>

Software Engineer

Varrlyn

<div>Company Description 
Varrlyn is a consulting firm which was founded in 2010 and is based in The Netherlands. We help financial institutions with system implementations and provide some serious application support, concentrating on the way they process transactions and deploy reporting applications.
Varrlyn has a proven track record: we have worked for financial institutions in Amsterdam, Brussels, London, Paris, New York, Frankfurt, and Sydney. We help improve cost efficiency, simplify application architecture, optimize time to market, enhance straight-through processing, and ensure compliance with financial regulations. In other words: You do the deal, we&rsquo;ll do the project. 
Job Description 
Build the future of AI-driven banking
Our client's Agentic AI Centre of Excellence is building the next generation of AI-powered products and engineering capabilities. We are looking for engineers who don't just implement AI solutions&mdash;they shape how they are designed, validated, and scaled across one of Europe's largest banks.
You are someone who naturally experiments, challenges assumptions, and turns ideas into working software. You don't wait for perfect requirements. You reduce uncertainty by building, testing, measuring and iterating.
What you'll do<ul><li>
Design and build production-grade Agentic AI applications.</li><li>
Architect AI systems using modern orchestration frameworks such as LangGraph or similar.</li><li>
Design reusable AI platform capabilities that can be adopted by multiple engineering teams.</li><li>
Build scalable cloud-native services using modern software engineering principles.</li><li>
Evaluate AI systems using quantitative metrics and continuously improve their performance.</li><li>
Translate prototypes into secure, reliable enterprise solutions.</li><li>
Challenge existing ways of working and help shape engineering best practices across the organization.</li></ul> 

Qualifications 
Must-have requirements:<ul><li>
5+ years of hands-on software engineering experience with a strong foundation in backend or full-stack development.</li><li>
Proven experience building production-grade Agentic AI or LLM applications, not just prototypes.</li><li>
Deep understanding of AI architecture, including orchestration, design trade-offs, and scalable AI system design.</li><li>
Hands-on experience with LangGraph, LangChain or similar agent frameworks, combined with Python.</li><li>
Strong cloud and platform engineering skills, preferably Azure, Kubernetes, Docker and CI/CD.</li><li>
Experience building scalable microservices and distributed systems in an enterprise environment.</li><li>
Able to measure and optimize AI performance, using metrics, evaluation frameworks and continuous improvement.</li><li>
Strong bias toward action, with experience rapidly prototyping, validating ideas and driving change in ambiguous environments.</li><li>
Demonstrated ownership and measurable business impact, with clear examples of technical decisions that improved products or processes.</li><li>
Excellent communication skills, able to explain technical decisions, challenge existing approaches and inspire confidence through enthusiasm and curiosity.</li></ul> 

Additional Information 
Acquisition in response to this vacancy is not appreciated.</div>

Senior Full-Stack AI Engineer

Adyen

<div>
 
 This is Adyen
 
 
 
 Adyen provides payments, data, and financial products in a single solution for customers like Facebook, Uber, H&amp;M, and Microsoft - making us the financial technology platform of choice. At Adyen, everything we do is engineered for ambition.
 
 
 For our teams, we create an environment with opportunities for our people to succeed, backed by the culture and support to ensure they are enabled to truly own their careers. The people of Adyen are motivated individuals who tackle unique technical challenges at scale and solve them as a team. Together, we deliver innovative and ethical solutions that help businesses achieve their ambitions faster.
 
 
 
 Unified Platform
 
 
 
 The Unified Platform Is At The Heart Of Adyen&rsquo;s Infrastructure, Bringing Together Accounting, Reporting, Billing, Pricing, Reconciliation, And Configuration Into One Streamlined Experience. It Enables Us To Stay Agile And Innovative While Running a Scalable, Efficient Business. As Part Of This Initiative, We&rsquo;re Rethinking Five Core Product Areas
 
 
 <ul>
 <li>
 Platform experience &ndash; Creating a unified and intuitive backend experience across Adyen products
 </li>
 <li>
 Accounting systems &ndash; Defining a cohesive and high-performing financial architecture
 </li>
 <li>
 Reporting &amp; reconciliation &ndash; Making financial data more accurate, accessible, and satisfying for customers and regulators
 </li>
 <li>
 Billing &amp; pricing infrastructure &ndash; Simplifying pricing and automating invoicing at scale
 </li>
 <li>
 Observability &amp; tooling &ndash; Strengthening visibility and control of money movement through advanced tooling
 
 
 </li>
 </ul>
 We&rsquo;re hiring Software Engineers at both Mid and Senior levels, and have several teams actively looking for new colleagues. While all roles share a strong technical foundation, each team brings a unique focus in scaling our unified platform, We'll explore the best team fit together throughout the interview process.
 
 
 
 What You&rsquo;ll Do
 
 
 
 <ul>
 <li>
 Work on complex technical projects from requirements analysis through design, implementation, testing and launch into production.
 </li>
 <li>
 Be hands-on and contribute to the implementation.
 </li>
 <li>
 Identify and improve parts of the platform to make it more robust and scalable.
 </li>
 <li>
 Bring your own point of view on best engineering practices.
 </li>
 <li>
 Your code will be used at scale and you are expected to think in that mindset when building features.
 </li>
 <li>
 We launch fast and iterate often. Concretely, this means that within your first few weeks, you will bring live functionalities that impact many merchants and shoppers.
 </li>
 <li>
 Build APIs and tooling according to quality principles such as performance and code quality.
 </li>
 <li>
 Collaborate across teams and time zones to get projects over the finish line.
 
 
 </li>
 </ul>
 
 Who You Are
 
 
 
 <ul>
 <li>
 Familiar with complex large scale distributed systems.
 </li>
 <li>
 You have experience with Java, Web Services, REST Apis, Webhooks and SQL/PostgreSql.
 </li>
 <li>
 You have a good understanding of Software Engineering practices and interest in product knowledge.
 </li>
 <li>
 You enjoy working in a cross-functional team with roles like Data Science, Frontend, and Product.
 </li>
 <li>
 You value involving other people to hear different perspectives.
 </li>
 <li>
 You have an experimental mindset with a launch fast and iterate mentality.
 
 
 </li>
 </ul>
 
 Minimum Qualifications
 
 
 
 <ul>
 <li>
 5+ years of experience in software development industry in a fast paced tech environment
 </li>
 <li>
 Full professional proficiency in English
 </li>
 <li>
 This role is based out of our Amsterdam office. We are an office-first company and value in-person collaboration; we do not offer remote-only roles.
 
 
 </li>
 </ul>
 
 Our Diversity, Equity and Inclusion commitments
 
 
 
 Our unique approach is a product of our diverse perspectives. This diversity of backgrounds and cultures is essential in helping us maintain our momentum. Our business and technical challenges are unique, and we need as many different voices as possible to join us in solving them - voices like yours. No matter who you are or where you&rsquo;re from, we welcome you to be your true self at Adyen.
 
 
 Studies show that women and members of underrepresented communities apply for jobs only if they meet 100% of the qualifications. Does this sound like you? If so, Adyen encourages you to reconsider and apply. We look forward to your application.
 
 
 
 What&rsquo;s next?
 
 
 
 Ensuring a smooth and enjoyable candidate experience is critical for us. We aim to get back to you regarding your application within 5 business days. Our interview process tends to take about 4 weeks to complete, but may fluctuate depending on the role. Learn more about our hiring process here. Don&rsquo;t be afraid to let us know if you need more flexibility.
</div>

Software Engineer (Java) - Unified Platform

Insify

<div>
 
 About Insify
 
 
 We are a high-growth scale-up backed by &euro;43M in total funding from world-class investors like Accel, Munich Re Ventures, and Formula 1 champion Nico Rosberg. While we started our journey five years ago in the Netherlands, we have since expanded into France and Germany, and we&rsquo;re just getting started. Our mission is to dominate the European market and become a global leader in AI-powered SME insurance.
 
 
 We aren't just building a company; we&rsquo;re leading a revolution. Our culture is intense, high-stakes, and mission-driven. We hire smart, ambitious "owners" who possess a relentless drive to win. This is an environment for those who thrive on challenges, value intellectual honesty, and share our mindset of becoming a global category leader.
 
 
 Our founding team consists of seasoned entrepreneurs who have previously built iconic businesses like HelloFresh, Bloomon, and SumUp. We combine that deep fintech and e-commerce expertise with cutting-edge AI to stay ahead of the curve.
 
 
 In this role, your mission is simple but demanding: to take ownership of a meaningful part of Insify&rsquo;s journey and deliver results that move the company forward.
 
 
 We're looking for a Software Engineer with 3+ years of experience to join the Billing team. You'll help design and build a scalable, multi-country billing platform: payment scheduling, invoicing, dunning, fees, taxes and reconciliation across legal entities, products and markets. You'll work shoulder-to-shoulder with product, finance, legal and our insurance carriers (Axeria, Hiscox, HDI, iptiQ, Chubb, Wakam). You'll own systems end-to-end, from the data model to production behaviour, and you'll be the engineer the rest of the company trusts when money is involved.
 
 
 
 What you'll be doing:
 
 
 
 <ul>
 <li>
 Build a billing platform that scales from two countries to six. Make the right abstractions now so adding a new market is a config change, not a rewrite
 </li>
 <li>
 Design and ship core billing capabilities: annual and monthly payment schedules, the Insify platform fee, VAT logic across jurisdictions, fee waiver rules, pro-rata refunds and renewals
 </li>
 <li>
 Own our dunning flow across Adyen (credit card) and Twikey (SEPA): failure classification, retries, settling checks, partial payments and country-specific legal compliance (NL 14-day statutory warning, FR mise en demeure, and whatever comes next)
 </li>
 <li>
 Build resilient integrations with payment, banking and tax providers, and keep them observable, secure and easy to swap out
 </li>
 <li>
 Handle multi-entity invoicing across Insify B.V., Insify Holding B.V., Insify NLD Agent B.V. and the entities we will add as we expand
 </li>
 <li>
 Partner with finance, legal and compliance to turn regulatory and accounting requirements into clean, testable systems. Be the engineer in the room who can credibly push back when something doesn't make sense
 </li>
 <li>
 Set the bar for engineering quality in the billing domain: idempotency, correctness, observability, recoverability. This is a domain where bugs cost real money
 </li>
 <li>
 Own incidents and operational health. When something breaks in billing, the business notices, and you'll be one of the people who fixes it
 
 
 
 
 </li>
 </ul>
 
 What you'll need:
 
 
 
 <ul>
 <li>
 3+ years of professional software engineering experience, ideally with TypeScript and AWS (Lambda, DynamoDB, event-driven architectures)
 </li>
 <li>
 A serious bar for correctness. You think in terms of edge cases, idempotency, consistency, retries, partial states and audit trails. You understand that "mostly works" is not acceptable when money moves
 </li>
 <li>
 Strong fundamentals in distributed systems, data modelling and API design. You can spot the abstraction that will hold up across five countries and four payment providers
 </li>
 <li>
 Comfort with complexity and ambiguity. Billing sits at the intersection of code, accounting, tax and law. You enjoy that instead of running from it
 </li>
 <li>
 Ownership instinct. You think of the system as yours, not as someone else's ticket queue
 </li>
 <li>
 Clear communicator. You can sit with finance, legal or a carrier and translate fuzzy requirements into a working system
 </li>
 <li>
 AI in your workflow. You actively use AI for coding, debugging and tooling to move faster
 
 
 
 
 </li>
 </ul>
 
 Nice to have:
 
 
 
 <ul>
 <li>
 Experience with payment providers (Adyen, Stripe, Mollie, Twikey or similar), SEPA and card payment flows
 </li>
 <li>
 Background in fintech, insurtech, billing, subscriptions or accounting systems at scale
 </li>
 <li>
 Experience expanding a product or platform into new countries, including localisation of payments, tax and invoicing
 </li>
 <li>
 Familiarity with VAT and multi-entity invoicing across EU markets
 </li>
 <li>
 Strong observability instincts (Sentry, Datadog) and a track record of operating
 
 
 
 
 </li>
 </ul>
 
 We offer:
 
 
 
 <ul>
 <li>
 Competitive compensation that reflects responsibility and impact. For mid-level engineer we have a range between 65-85k per year.
 </li>
 <li>
 Trust and autonomy: you&rsquo;ll have real ownership and room to make decisions Space to grow and shape your role as Insify evolves
 </li>
 <li>
 A steep learning curve, with support from experienced teammates
 </li>
 <li>
 The opportunity to share in what we&rsquo;re building, with equity for eligible roles once there&rsquo;s mutual conviction on fit and impact
 </li>
 <li>
 A welcoming, central Amsterdam HQ where we work closely together: shared lunches, dogs in the office, whiteboards, and fun end-of-week drinks
 </li>
 <li>
 An international, ambitious team that enjoys building meaningful things together
 
 
 </li>
 </ul>
</div>

Software Engineer, Payments Platform

Hi Tech-IT

<div>
 
 
 DevOps Engineer
 
 
 
 Bouw mee aan innovatieve IT-oplossingen
 
 
 Ben jij een DevOps Engineer die graag software ontwikkelt &eacute;n infrastructuur automatiseert? Werk je graag met moderne technologie&euml;n en wil je een belangrijke rol spelen in het ontwikkelen van schaalbare en betrouwbare oplossingen? Dan is dit een functie waarin je veel technische uitdaging en vrijheid vindt.
 
 
 Wat ga je doen?
 
 
 Als DevOps Engineer werk je binnen een multidisciplinair team aan de ontwikkeling en verbetering van software die wordt ingezet binnen complexe IT-omgevingen. Je bent betrokken bij het volledige ontwikkelproces: van ontwerp en implementatie tot automatisering en optimalisatie.
 
 
 
 
 
 Je werkzaamheden bestaan onder andere uit:
 
 <ul>
 <li>
 Ontwikkelen van backend applicaties en API's.
 </li>
 <li>
 Bouwen en verbeteren van CI/CD pipelines.
 </li>
 <li>
 Automatiseren van deployment- en beheerprocessen.
 </li>
 <li>
 Werken met containers en cloud-native technologie&euml;n.
 </li>
 <li>
 Integreren van verschillende systemen en platformen.
 </li>
 <li>
 Optimaliseren van prestaties, stabiliteit en schaalbaarheid.
 </li>
 <li>
 Samenwerken met softwareontwikkelaars, cloud engineers en infrastructuurspecialisten.
 </li>
 <li>
 Actief meedenken over technische verbeteringen en nieuwe oplossingen.
 </li>
 </ul>
 
 
 
 
 Wat neem je mee?
 
 <ul>
 <li>
 HBO- of WO-werk- en denkniveau.
 </li>
 <li>
 Ervaring met softwareontwikkeling, bij voorkeur in Python, Go of Java.
 </li>
 <li>
 Ervaring met Git en CI/CD tooling.
 </li>
 <li>
 Goede kennis van Linux.
 </li>
 <li>
 Ervaring met Docker en Kubernetes.
 </li>
 <li>
 Kennis van Infrastructure as Code, zoals Terraform of Ansible, is een pr&eacute;.
 </li>
 <li>
 Je bent analytisch, zelfstandig en houdt van technische uitdagingen.
 </li>
 <li>
 Goede beheersing van de Nederlandse taal.
 </li>
 </ul>
 
 
 
 
 Wat krijg je ervoor terug?
 
 <ul>
 <li>
 Een uitstekend salaris afhankelijk van jouw kennis en ervaring.
 </li>
 <li>
 Leaseauto of mobiliteitsbudget.
 </li>
 <li>
 Hybride werken met veel flexibiliteit.
 </li>
 <li>
 Laptop en telefoon van de zaak.
 </li>
 <li>
 Uitstekende pensioenregeling.
 </li>
 <li>
 Opleidingsbudget en volop certificeringsmogelijkheden.
 </li>
 <li>
 Werken met de nieuwste technologie&euml;n binnen uitdagende projecten.
 </li>
 <li>
 Veel ruimte voor eigen initiatief en persoonlijke ontwikkeling.
 </li>
 <li>
 Een informele organisatie met korte lijnen en een collegiale werksfeer.
 </li>
 </ul>
 
 
 
 
 Waarom deze functie?
 
 
 Je komt terecht in een technisch gedreven organisatie waar innovatie, automatisering en kwaliteit centraal staan. Je krijgt veel verantwoordelijkheid, werkt met moderne tooling en hebt alle ruimte om jezelf verder te ontwikkelen als DevOps Engineer.
 
 
 Interesse? Neem contact op voor meer informatie of solliciteer direct.
 
</div>

DevOps Engineer

Alignerr

<div>
 
 About The Role
 
 
 
 What if the code you write could directly power the AI systems shaping how millions of people interact with technology? We're looking for Back End Developers in Amsterdam to design, build, and optimize the server-side systems and APIs that drive cutting-edge AI products &mdash; from data pipelines and model-serving infrastructure to scalable microservices that handle real-world traffic at scale.
 
 
 This is a fully remote, flexible contract role. Whether you're a seasoned engineer looking for meaningful project work or a strong developer ready to apply your skills to AI-adjacent infrastructure, this is your chance to build things that matter.
 
 
 <ul>
 <li>
 Organization: Alignerr
 </li>
 <li>
 Type: Hourly Contract
 </li>
 <li>
 Location: Remote
 </li>
 <li>
 Commitment: 10&ndash;40 hours/week
 
 
 </li>
 </ul>
 
 What You'll Do
 
 
 
 <ul>
 <li>
 Design, develop, and maintain robust back end services, APIs, and data pipelines
 </li>
 <li>
 Build scalable, high-performance server-side architecture to support AI training and inference workloads
 </li>
 <li>
 Write clean, well-documented, and testable code following engineering best practices
 </li>
 <li>
 Integrate with databases, message queues, cloud services, and third-party APIs
 </li>
 <li>
 Optimize system performance, reliability, and scalability as usage grows
 </li>
 <li>
 Collaborate asynchronously with distributed teams of engineers, researchers, and product leads
 </li>
 <li>
 Troubleshoot production issues, conduct code reviews, and contribute to architectural decisions
 </li>
 <li>
 Work independently on task-based and project-based assignments on your own schedule
 
 
 </li>
 </ul>
 
 Who You Are
 
 
 
 <ul>
 <li>
 Proficient in one or more back end languages &mdash; Python, Go, Java, Node.js, Rust, or similar
 </li>
 <li>
 Solid understanding of RESTful API design, microservices architecture, and distributed systems
 </li>
 <li>
 Experienced with relational and/or NoSQL databases (PostgreSQL, MongoDB, Redis, etc.)
 </li>
 <li>
 Comfortable working with cloud platforms such as AWS, GCP, or Azure
 </li>
 <li>
 Familiar with version control (Git), CI/CD pipelines, and containerization (Docker, Kubernetes)
 </li>
 <li>
 Strong problem-solving skills and the ability to debug complex systems independently
 </li>
 <li>
 Self-motivated, reliable, and effective when working asynchronously without close supervision
 </li>
 <li>
 Clear communicator who can document decisions and collaborate across time zones
 
 
 </li>
 </ul>
 
 Nice to Have
 
 
 
 <ul>
 <li>
 Experience building infrastructure for machine learning or AI systems
 </li>
 <li>
 Familiarity with data processing frameworks (Apache Kafka, Spark, Airflow, or similar)
 </li>
 <li>
 Background in performance optimization, caching strategies, or high-throughput systems
 </li>
 <li>
 Knowledge of authentication, authorization, and security best practices
 </li>
 <li>
 Experience with serverless architectures or event-driven design patterns
 </li>
 <li>
 Contributions to open-source projects or a strong portfolio of personal/professional work
 
 
 </li>
 </ul>
 
 Why Join Us
 
 
 
 <ul>
 <li>
 Work on cutting-edge AI infrastructure projects alongside leading research labs
 </li>
 <li>
 Fully remote and flexible &mdash; set your own hours and work from anywhere
 </li>
 <li>
 Freelance autonomy with access to meaningful, technically challenging work
 </li>
 <li>
 Build systems at the intersection of software engineering and artificial intelligence
 </li>
 <li>
 Collaborate with a global network of talented engineers and researchers
 </li>
 <li>
 Potential for ongoing work and contract extension as new projects launch
 </li>
 </ul>
</div>

Back End Developer (AI Infrastructure)

Explore 55+ Backend engineer in Amsterdam this July. Find roles across top companies and apply now to boost your career.