.net developer

python software engineer Jobs in Amsterdam

python software engineer

senior python backend developer Jobs in Amsterdam

senior python backend developer

python developer

Futurewhiz

<div>Amsterdam - Hybrid (minimum 50% at the office)<ul><li>️ 36-40 hours per week</li></ul>
 &euro;4900 - &euro;5600 per month
 Futurewhiz is a B Corp
Just a small heads-up regarding logistics: we aren't able to offer visa sponsorship for this role, so we can only consider candidates who already hold a valid work permit for the Netherlands or the EU.
At Futurewhiz, we have one mission that unites us all:<h3 class="jobSectionHeader">
Empowering every child to grow by shaping the future of personalized learning for the next generation.</h3>
Every day, we create digital learning products that challenge, motivate, and help children aged 3 to 18 grow. Futurewhiz is looking for a Senior Backend Developer! Do you want to help hundreds of thousands of children learn through play while ensuring responsible screen time? Then we are looking for you!
 About Futurewhiz, Squla and StudyGo
For over 16 years, Futurewhiz has been the market leader in EdTech in the Netherlands. Our brands, including Squla and StudyGo, help children and teenagers aged 3 to 18 learn and grow at their own level and pace. Our mission is clear: &quot;Empowering every child to grow.&quot; We've been a certified B Corp since 2020, which means we strive for a strong balance between purpose and profit.
Squla is a popular educational brand among (primary school) children, parents and teachers. Every day, more than 160,000 children at home and more than half a million children play the best games and quizzes at school in the classroom. Our mission? Helping children progress through play! We do this by staying close to children's experiences, and by using gaming elements, attractive UX designs and current, changing content.
StudyGo (formerly WRTS) is the go-to online platform for secondary school students to prepare for exams. From vocabulary practice and assignments to chatting with tutors and attending group lessons, we offer a comprehensive toolkit to help students succeed. With over 650,000 annual users, StudyGo has become one of the key digital platforms for secondary education.
 What will you do?
As a Senior Backend Developer in our Primary Education team, you'll build Squla, the platform that helps hundreds of thousands of children learn through play every day, and you'll shape both its technical direction and the way our engineering team works. This is a role with real ownership, autonomy, and space for creativity. Your ideas and decisions will directly influence the product and how we build it.
AI is changing what senior engineering means, and we're changing with it. As coding agents handle more of the implementation, the leverage shifts to judgment: deciding what to build, designing systems that stay healthy, and shaping ways of working that let a whole team get more from AI without lowering the quality bar. That last part is genuinely yours to define here: how we use agents, what our guardrails look like, what good engineering means in this new mode. You'll combine hands-on development with technical leadership, mentoring, and architectural decision-making. If you've already rebuilt your own workflow around delegating to agents, this is a chance to do the same for a team.
 Your role and impact<ul><li>
Lead backend planning and technical decision-making together with the PM and your multidisciplinary team</li><li>
Define how we use AI in engineering: design workflows around agent delegation, parallel execution and review guardrails so the team gains speed without losing quality or accountability</li><li>
Own significant technical areas and stay accountable for technical quality, system health and maintainability over time</li><li>
Set up the guardrails, reviews and architecture that allow colleagues from other disciplines to contribute safely, including AI-assisted contributions headed for production</li><li>
Work broadly across the stack where it keeps momentum high: backend first, frontend, data and infrastructure when useful</li><li>
Take ownership of team results: you ship, measure whether it moved learning and business outcomes, and act on what you find</li><li>
Act as a technical mentor and sparring partner for the team</li><li>
Foster a strong engineering culture through code reviews, knowledge sharing, and collaboration</li></ul>
Our stack is:<ul><li>
Python back-end</li><li>
React front-end</li><li>
AWS</li></ul> 
 Who are you?
You enjoy taking ownership, making technical decisions, and helping others grow. You thrive in an environment where your ideas matter, your expertise is trusted, and your work has visible impact. You're energized rather than threatened by how fast AI is changing engineering, and you want to help define what good looks like.
You bring:<ul><li>
Solid experience as a Senior Backend Developer building production systems</li><li>
Strong Python experience and confidence owning technical decisions from idea to production and beyond</li><li>
You've made agent-driven development your daily reality: you delegate complete tasks to coding agents, often several in parallel, you know where they shine and where they quietly fail, and you have ideas about what a team-wide agentic workflow should look like</li><li>
Experience designing API-driven backend architectures and data modeling at scale, especially with relational databases like MySQL</li><li>
A deep understanding of software design patterns, automated testing, and clean code practices</li><li>
The judgment to balance speed against maintainability, security and technical risk</li><li>
Experience mentoring engineers and reviewing production-bound work from others</li><li>
Comfort working from goals and ambiguity in a multidisciplinary team</li><li>
Fluency in English, written and spoken</li></ul>
Nice to have:<ul><li>
Hands-on experience with AWS or other cloud platforms</li></ul>
 What do we offer?<ul><li>
24 vacation days + 3 assigned days off + 1 skipping school day</li><li>
Collective pension and health insurance</li><li>
A &euro;600 annual learning budget for your professional development</li><li>
Unlimited access to external coaches through Inuka Coaching</li><li>
Unlimited access to Goodhabitz training programs for professional and personal growth</li></ul>
Additionally:<ul><li>
Lifetime access to StudyGo and Squla accounts</li><li>
Office next to Bijlmer Arena station (with the possibility of getting a Swapfiets or an OV business card if you live over 7km from the office)</li><li>
A MacBook for work</li><li>
Payroll Giving option to contribute to a good cause</li><li>
Healthy lunches at the office, unlimited good coffee, fresh fruit, and snacks</li><li>
A Culture Crew that organizes fun activities like outings, pub quizzes, ski trips, and laser tag</li></ul>
 Who are we?
We're a passionate and diverse team, brought together by a shared mission: helping children thrive in their learning journey, and empowering them to grow through personalised education.
Our culture is welcoming and authentic. We believe the best work happens when people can be themselves. Whether you're into book clubs, monthly socials, movie nights, cake-baking contests, Mario Kart showdowns, or ski trips, you'll find a community that feels like home. Here at Futurewhiz, there's something for everyone, and we can't wait to welcome you!
Our platforms are for everyone, and the same applies to our workplace.
The beauty lies in the diverse backgrounds, ideas, experiences, and perspectives of our people. This diversity enables us to help all young learners realize their educational potential, regardless of who they are, or who we are. At Futurewhiz, we actively embrace each other's differences, fostering an authentic environment where people can truly be themselves. This makes it easier for others to do the same. We're committed to nurturing a diverse and inclusive culture that starts here in our office and extends across all our platforms, and everyone is welcome on this journey.
 Our use of AI
At Futurewhiz, we believe in fully embracing AI in our way of working.
AI is transforming our roles, and we'll shape this future together. We use AI to accelerate our mission: to move faster, go further, and improve our support to children, parents, and teachers.
Do you have any questions about AI and our use of it in the recruitment process? Send us a message to recruitment@futurewhiz.com<h2 class="jobSectionHeader">
Will you be our new Senior Python Backend Developer?</h2>
We'd love to hear from you, even if you don't check every box! If you're excited about the role, just be yourself and go for it. We value diverse perspectives and are always curious to learn what makes you unique.
A quick tip: above all, just be yourself! We truly celebrate diversity in all our colleagues and are genuinely excited to hear your unique perspective.
Just a small heads-up regarding logistics: we aren't able to offer visa sponsorship for this role, so we can only consider candidates who already hold a valid work permit for the Netherlands or the EU.
Ready to join us? Simply upload your CV and a short motivation via the application button, and we'll be in touch soon. We can't wait to meet you!</div>

Senior Python Backend Developer

IMC Trading

<div>
 At IMC, technology is not a department; it&rsquo;s at the heart of everything we do. Developed in-house, our innovative software makes millions of trading decisions daily, and we win by making better and faster decisions than our competition. Our various Python Development teams create scalable business-critical applications, tools and automated tasks to equip IMC&rsquo;s Amsterdam, London, Zug and Mumbai trading and business support teams.
 
 
 
 Your Core Responsibilities
 
 
 
 IMC uses a wide variety of technologies. Python is widely used across our tech stack, notably to make it more accessible to our traders, researchers and analysts. As a Python Software Engineer at IMC Amsterdam, you will take part in the development of high-performance trading systems, analytical tools, signals generation, backtesting frameworks, trade management UIs or regulatory surveillance &amp; risk monitoring. Therefore your role will involve collaborating directly and closely with the business and other tech teams, from initially gathering requirements to short iteration cycles to refine the implementation, to integrate user feedback, to voice and implement your improvements and ideas.
 
 
 All the software you&rsquo;ll be building is for internal use only, there are no external clients/users and therefore no non-sense requests: the users of your work sit a few meters from you and you have control over the whole development cycle. Curiosity and interest into the trading and financial markets is a key success factor in this role, as you will be working directly on the business logic, in an environment where understanding the business context is primordial.
 
 
 
 Responsibilities
 
 
 
 At IMC we believe in giving a lot of responsibilities quickly, you&rsquo;ll be working on your goals with a high degree of independence, yet supported by a solid network of mentors, teammates and trading team highly motivated to make sure you are successful and share their passion for trading and technology. In this role, you might end up working on are a wide range of tasks - for example:
 
 
 <ul>
 <li>
 Adding a new signal a trader came up with to our framework.
 </li>
 <li>
 Supporting a trading desk in building the data analytics and visualisation tools they need.
 </li>
 <li>
 Troubleshooting, debugging or deep diving into performance analysis.
 </li>
 <li>
 Teaching others how to use our tech in their own scripts.
 </li>
 <li>
 Building and distributing internal python libraries.
 </li>
 <li>
 Starting whole new full-stack projects from scratch.
 
 
 </li>
 </ul>
 
 Your Skills And Experience
 
 
 
 <ul>
 <li>
 We care about 4+ years of working experience as a Software Engineer.
 </li>
 <li>
 Deep technical knowledge of Python, you understand its internal workings and know its strength and limitation. We use a range of Python libraries and frameworks (such as FastAPI (AsyncIO), APScheduler, Pandas, Polars, RQ, Pytest, Tensorflow, scipy, xgboost, scikit-learn, numpy, numba, celery).
 </li>
 <li>
 Experience with DevOps, databases, big data or frontend frameworks is a plus. (Some examples of tools we frequently work with: Kubernetes, Helm, Docker, Gitlab CI, TypeScript, React, Redis, PostgreSQL, Mongo, Dremio, Apache Iceberg, HDFS, Kafka, Apache Arrow/Parquet).
 </li>
 <li>
 A critical mindset and the ability to challenge ideas and solutions, to not take things for granted, validate assumptions and dig into the details to find and cover all corner cases. You&rsquo;re not afraid to ask questions and to speak up.
 </li>
 <li>
 Experience working with financial data is a must, ideally in the financial services industry. The nature of this role requires both affinity and experience to this type of data.
 
 
 </li>
 </ul>
 Our tech stack includes an ever-evolving range of systems and technologies, and our engineers have the freedom to choose the best solution for the problem at hand. If a new technology has the potential to add value, we&rsquo;ll actively invest in exploring, adopting and developing it.
 
 
 
 About Us
 
 
 
 IMC is a global trading firm powered by a cutting-edge research environment and a world-class technology backbone. Since 1989, we&rsquo;ve been a stabilizing force in financial markets, providing essential liquidity upon which market participants depend. Across our offices in the US, Europe, Asia Pacific, and India, our talented quant researchers, engineers, traders, and business operations professionals are united by our uniquely collaborative, high-performance culture, and our commitment to giving back. From entering dynamic new markets to embracing disruptive technologies, and from developing an innovative research environment to diversifying our trading strategies, we dare to continuously innovate and collaborate to succeed.
</div>

Python Software Engineer

Hoppinger

<div><ul><li>Engineering
</li><li>32-40 uur</li></ul>
<div></div><div><div><div><div><div><div>Wij zoeken een ervaren .NET-developer die het bouwen en live brengen van robuuste software als vak ziet, en die graag voorop loopt als het gaat om nieuwe technologie. Iemand met een stevige basis in C#/.NET, die kwaliteit en onderhoudbaarheid vooropstelt, en die onze beweging naar een AI-first manier van werken niet afwacht maar mede vormgeeft. Het zwaartepunt van deze rol ligt bij development. Je schrijft code, bouwt features en lost vraagstukken op binnen de platformen die we voor onze klanten ontwikkelen. Daarnaast denk je actief mee over hoe we ons werk en onze oplossingen beter maken met nieuwe technologie. AI speelt daarin een steeds grotere rol, en we zoeken iemand die die ontwikkeling met plezier oppakt.</div><div><div><div><div><h2 class="jobSectionHeader">
Groeien met Hoppinger</h2>
We zijn eerlijk over waar we staan. Onze platformen voor bedrijfskritische processen in zorg, housing, kennis en onderwijs en industrie zijn gebouwd op een stevige softwarebasis, met C#/.NET als belangrijk fundament. Dat fundament blijft de komende jaren leidend, en daar hebben we ervaren developers voor nodig.
Tegelijk groeien we naar een AI-first manier van werken. We investeren in kennis, tooling en concrete AI-toepassingen binnen onze platformen, en onderzoeken doorlopend hoe AI ons werk verbetert. AI is voor deze rol geen hoofdtaak, maar wel een onderdeel dat groeit. We verwachten niet dat je daar al expert in bent. We zoeken wel iemand die die transformatie aandurft, het in de praktijk toepast en mee wil groeien terwijl we die stap als organisatie zetten.<h2 class="jobSectionHeader">
Jouw rol</h2>
Je werkt in een multidisciplinair team aan platformen voor onze opdrachtgevers. Je vertaalt functionele wensen naar werkende software, bewaakt de kwaliteit van wat je oplevert en denkt mee over de technische aanpak. Je staat met beide benen in de code, en je houdt van vernieuwen waar dat de oplossing beter maakt.
Je dagen bestaan onder andere uit:<ul><li>
Het ontwerpen, bouwen en testen van features in C#/.NET</li><li>
Het schrijven van onderhoudbare, goed geteste code en het meedenken over de architectuur van onze platformen</li><li>
Het meedraaien in code reviews en het delen van kennis met je teamgenoten</li><li>
Het werkend houden van software in productie: stabiliteit, performance en beveiliging</li><li>
Het verkennen en toepassen van nieuwe technologie, waaronder AI, van slimmere ontwikkeltooling tot AI-functionaliteit in onze oplossingen</li><li>
Het samenwerken met andere engineers, experience architects en data-analisten</li></ul><h2 class="jobSectionHeader">
Wie ben jij</h2>
Je bent een ervaren software engineer met een sterke .NET-achtergrond. Je hebt aantoonbaar software gebouwd en live gebracht, en je hecht aan kwaliteit. Je bent nieuwsgierig naar nieuwe technologie en je wacht niet tot anderen die hebben uitgeprobeerd. De stap naar AI-first die wij als organisatie zetten, zie jij als een kans om aan mee te bouwen.
Je herkent jezelf hierin:<ul><li>
Ruime ervaring in softwareontwikkeling, met C#/.NET als vaste waarde in je gereedschapskist. Dit is een harde eis</li><li>
Kennis van softwarearchitectuur: API-design, microservices, event-driven architectuur en containerisatie</li><li>
Oog voor kwaliteit: testbaarheid, onderhoudbaarheid en het meedenken over technische keuzes</li><li>
Een innovatiegedreven instelling: je volgt nieuwe ontwikkelingen en past ze toe waar ze waarde toevoegen</li><li>
Nieuwsgierigheid naar AI en de bereidheid om dit een groeiend onderdeel van je werk te maken. Ervaring is een pr&eacute;, geen eis</li><li>
Het vermogen om in een multidisciplinair team te werken en je kennis te delen</li></ul><h2 class="jobSectionHeader">
Wat bieden wij</h2>
Veel vrijheid en een ambitieuze cultuur waar persoonlijke ontwikkeling centraal staat. Natuurlijk draait niet alles om werk, en bovenop alle gebruikelijke benefits die je mag verwachten bieden we ook:<ul><li>
Salaris: een marktconform salaris (medior t/m senior schaal) op basis van 40 uur en afhankelijk van ervaring</li><li>
Celebration Leave: ruil 3 nationale feestdagen in voor jouw eigen feestdagen</li><li>
Alleo: kies extra benefits op basis van je eigen interesses</li><li>
100% doorbetaald partnerverlof: voor een goede start van je gezin</li><li>
Hybride werken: flexibiliteit om te werken vanuit onze inspirerende kantoren in Rotterdam en Utrecht (De Bilt) of vanuit huis</li><li>
Multidisciplinaire teams: werk samen met ambitieuze collega's</li><li>
Opleidingsbudget: voor jouw persoonlijke en professionele ontwikkeling</li><li>
Lerende organisatie: groei in een omgeving vol kennisdeling en innovatie</li><li>
Gratis lunch: met aandacht voor gezond eten, samen lunchen en vaste tradities zoals Krokettenwoensdag</li></ul><h2 class="jobSectionHeader">
Even kort over Hoppinger</h2>
Hoppinger is een Digital Partner die organisaties helpt versnellen in hun digitale groei en innovatie. Wij gidsen opdrachtgevers bij strategische keuzes en de ontwikkeling van platformen voor bedrijfskritische klant- en kernprocessen. Door onze expertise over meerdere disciplines, sectorervaring en bewezen methodieken realiseren we digitale oplossingen die waarde cre&euml;ren voor organisaties, medewerkers en eindgebruikers. Voor nu, en in de toekomst.
We werken voor organisaties in impactvolle sectoren zoals zorg, educatie, industrie en dienstverlening.<h2 class="jobSectionHeader">
 nu</h2>
Wil je ons team versterken als .NET Developer? Dan horen we graag van je.
Heb je vooraf nog vragen, neem gerust contact op via 010-2210190 of mail Carlijn van den Bos via [email protected].
Voldoe je niet aan 100% van de genoemde eisen? Laat je daar niet door tegenhouden. We leren je liever kennen dan dat we een goede match mislopen.<h2 class="jobSectionHeader">
Direct interesse? Solliciteer hier</h2></div></div></div></div></div></div></div></div><div><div><h2 class="jobSectionHeader">
Vragen of direct solliciteren?</h2><div>
Zie je jezelf bij ons werken? Stuur dan direct je CV, we leren je graag kennen! Liever nog even sparren over deze functie met een toekomstig collega? Mag ook! Neem dan even contact op.</div></div></div></div></div><div></div>

.NET developer

Group-IB

<div>
 Founded in 2003 and headquartered in Singapore, Group-IB is a leading creator of cybersecurity technologies to investigate, prevent, and fight digital crime. Combating cybercrime is in the company&rsquo;s DNA, shaping its technological capabilities to defend businesses, citizens, and support law enforcement operations.
 
 
 Group-IB&rsquo;s Digital Crime Resistance Centers (DCRCs) are located in the Middle East, Europe, Central Asia, and Asia-Pacific to help critically analyze and promptly mitigate regional and country-specific threats. These mission-critical units help Group-IB strengthen its contribution to global cybercrime prevention and continually expand its threat-hunting capabilities.
 
 
 
 About The Role
 
 
 
 In this role, you will be instrumental in the engineering and end-to-end development of analytical services designed to provide advanced fraud intelligence. You will leverage your experience in production-grade Python development to enhance our strategic fraud detection capabilities through the analysis of session and network data, development of sophisticated fraud detection logic, and implementation of predictive modeling and scoring methodologies across diverse web entities.
 
 
 
 YOUR MISSION
 
 
 
 <ul>
 <li>
 Execute data collection and analysis from disparate sources to establish and maintain robust ETL pipelines.
 </li>
 <li>
 Perform advanced research into methodologies for fraud mitigation and anomaly detection within transactional and sessional data environments.
 </li>
 <li>
 Develop and integrate machine learning models and mathematical algorithms into the Fraud Protection ecosystem.
 </li>
 <li>
 Engineer and validate AI Agents tailored for complex analytical operations.
 </li>
 <li>
 Analyze session and network data to develop sophisticated fraud detection logic.
 </li>
 <li>
 Implement predictive modeling and scoring methodologies across diverse web entities.
 </li>
 <li>
 Synthesize research findings into comprehensive documentation and formal presentations.
 
 
 </li>
 </ul>
 
 What We Are Looking For
 
 
 
 <ul>
 <li>
 Strong foundation in tabular data analysis.
 </li>
 <li>
 Experience writing production-ready, asynchronous Python code (Python 3.10+).
 </li>
 <li>
 Experience with Python data analysis and machine learning libraries, including pandas and scikit-learn.
 </li>
 <li>
 Proficiency with Git; experience with Docker is a plus.
 </li>
 <li>
 Proficiency in IDE and terminal-based development.
 </li>
 <li>
 Experience building ETL pipelines.
 </li>
 <li>
 Experience orchestrating AI coding agents efficiently.
 </li>
 <li>
 Research-oriented mindset.
 </li>
 <li>
 Database experience with Elasticsearch, Cassandra, or ClickHouse is highly preferred.
 
 
 </li>
 </ul>
 
 What Sets You Apart
 
 
 
 <ul>
 <li>
 Prior experience within the cybersecurity or anti-fraud sectors.
 </li>
 <li>
 Experience implementing AI agents end-to-end.
 </li>
 <li>
 Strong documentation and presentation skills.
 </li>
 <li>
 Experience working with Elasticsearch, Cassandra, or ClickHouse.
 </li>
 <li>
 Good understanding of networking concepts (hosting, VPN, etc.).
 </li>
 <li>
 Understanding of fraud prevention and network protection.
 
 
 </li>
 </ul>
 
 WHY CHOOSE GROUP-IB
 
 
 
 Group-IB is a global leader in cybersecurity technologies that investigate, predict, prevent, and fight digital crime. We help organizations reduce risk and protect trust. Trusted by governments, major industries, and law enforcement, we deliver adversary-focused, predictive threat intelligence and cyber fraud fusion solutions that detect, analyse, and mitigate regional and country-specific digital crimes.
 
 
 <ul>
 <li>
 Work with real stakes. Group-IB investigates active cybercriminal groups, responds to breaches affecting critical infrastructure, and develops technologies used by law enforcement agencies including INTERPOL, Europol, and Afripol across 60+ countries. We've conducted 1,550+ cybercrime investigations alongside 600+ enterprise customers globally. When you join Group-IB, your work directly disrupts digital crime.
 </li>
 <li>
 Grow your way. Choose your own path: deepen your craft as a technical expert, step into leadership, move across to another team, or relocate to one of our Digital Crime Resistance Centers across the Americas, Europe, the Middle East &amp; Africa, Central Asia, and the Asia-Pacific. Your growth is our growth &mdash; Group-IB's expansion across 60+ active country operations means real career acceleration.
 </li>
 <li>
 We fund professional certifications at company expense &mdash; whether you're pursuing CEH, CISSP, OSCP, or specialized certifications in forensics and penetration testing. You don't have to choose between doing the job and advancing your credentials.
 </li>
 <li>
 Work alongside industry leaders. Our Unified Risk Platform &mdash; Threat Intelligence, Digital Risk Protection, Attack Surface Management, Managed XDR, and more &mdash; is recognized by Gartner, Forrester, KuppingerCole, and Datos Insights. Frost &amp; Sullivan named us a 2025 Global Technology Innovation Leader. When you work here, you're building technologies that set the industry standard.
 </li>
 <li>
 Real challenges, real expertise. You'll take on complex, real-world problems alongside adversary-centric researchers and incident response experts spread across six continents. We've built 21+ years of proprietary telemetry through 1,500+ joint investigations. No two threats look alike &mdash; and neither do the skills you'll develop.
 </li>
 <li>
 A team that is genuinely international. Our people come from different countries, speak different languages, and bring different perspectives. What connects us is a shared mission: fighting cybercrime and making the world safer. We care about your wellbeing and happiness as much as your output.
 </li>
 </ul>
</div>

Data Scientist

myTomorrows

<div>About myTomorrows
myTomorrows is a global health tech company dedicated to breaking down barriers for patients seeking treatment options.
We strive to enable earlier and better treatment access by bridging the gap between those searching for possible options, and the companies who develop them. We work closely with patients, healthcare professionals, trial sites, patient advocacy groups, and BioPharma &ndash; connecting key stakeholders in the drug development ecosystem.
We&rsquo;ve developed a cutting-edge AI-powered technology platform that simplifies and streamlines access to drugs in development. To support our users and clients, we have a range of industry-expert specialized teams ready to help. Our services include clinical trial patient recruitment, Expanded Access Program management and Real-World Data collection.
With a global footprint spanning 134 countries, to date we&rsquo;ve supported over 17,000 patients, 3,000 physicians and 350 sites, earning the trust of 60+ BioPharma companies. In October 2025, we closed a &euro;25M investment with Avego Healthcare Capital to fuel our global ambitions and scale the business.
Join us in shaping the future of treatment access - making tomorrow&rsquo;s therapies accessible for people who need them today.
The opportunity: Fullstack Engineer
As a Full Stack Engineer, you will take primary ownership of our frontend experience while being capable of making the backend changes needed to unblock yourself and your team. You'll work closely with Backend Engineers, DevOps Engineers, and stakeholders to deliver scalable, reliable, and high-performance products end-to-end, from pixel to API.
Given that most of our team is located in the Netherlands, we only consider candidates for this position who live within commuting distance of our office in Amsterdam.<h2 class="jobSectionHeader">
What you'll do in this role</h2><ul><li>
Design, develop, and maintain frontend components in Angular (and Lit HTML where applicable), ensuring optimal performance, responsiveness, and usability.</li><li>
Own the integration layer between frontend and backend: consume and contribute to OpenAPI-defined APIs, handle data contracts, and wire up microservices cleanly.</li><li>
Make targeted backend changes, new endpoints, tweaks to existing services, minor data model updates, so you can ship features without always depending on a dedicated backend engineer.</li><li>
Contribute to architectural discussions across the full stack, from UI component structure to API design and data access patterns.</li><li>
Participate actively in code reviews, providing feedback on both frontend and backend code quality, adherence to standards, and performance.</li><li>
Mentor and support junior engineers across the stack.</li><li>
Stay current with evolving frontend and full-stack best practices.</li></ul><h2 class="jobSectionHeader">
What you bring to the table</h2><ul><li>
3+ years of experience in frontend or full stack engineering.</li><li>
Strong proficiency in Angular and experience with component-based frameworks such as Lit HTML.</li><li>
Solid understanding of responsive design, UX/UI principles, and a keen eye for design detail.</li><li>
Proven experience integrating with APIs and microservices, you understand HTTP, REST conventions, auth flows, and error handling deeply.</li><li>
Working proficiency in Python, enough to navigate a FastAPI codebase, add or adjust endpoints, and write Pydantic models and SQLAlchemy queries.</li><li>
Familiarity with relational databases (MySQL/PostgreSQL) at the query and schema level.</li><li>
Experience with containerised workflows using Docker.</li><li>
Excellent problem-solving skills; comfortable working independently and collaboratively.</li><li>
Strong English communication skills and ability to work across disciplines.</li><li>
Comfortable using AI-assisted development tools (e.g. Claude Code, Cursor, or similar) as part of daily workflow.</li><li>
Familiarity with LLM API integration (OpenAI, Anthropic, or similar) and an understanding of the UX patterns specific to AI-powered features.</li></ul><h2 class="jobSectionHeader">
What success in the first 6 months looks like</h2><ul><li>
You've built trust with Backend, DevOps, and Product peers and taken clear ownership of 2&ndash;3 frontend domains, including their design system consistency and API integration contracts.</li><li>
You've delivered frontend features end-to-end, from UX design discussion through Angular implementation, API wiring, tests, and documentation, without needing hand-holding at either layer.</li><li>
You've unblocked yourself (and others) by making safe, well-reviewed backend changes: adding an endpoint, adjusting a response model, or optimising a query, rather than waiting in a queue.</li><li>
You've raised frontend quality: responsive across devices, accessible, consistent with our design system, and validated against real API contracts rather than mocks.</li><li>
You've contributed to meaningful observability on the frontend, error tracking, performance budgets, and linked them to backend SLIs where relevant.</li><li>
You've shared knowledge through documentation, code reviews, and mentoring, so the team's frontend capability grows with you.</li></ul><h2 class="jobSectionHeader">
Current tech stack</h2>
We're fully cloud-native on AWS, with a lean, API-first product development approach.
Frontend: Angular &middot; Lit HTML &middot; Headless Wagtail &middot; WordPress
Backend: Python &middot; FastAPI &middot; Pydantic &middot; SQLAlchemy &middot; MySQL &middot; Neo4j
Platform: AWS &middot; Kubernetes &middot; Terraform &middot; Docker &middot; GitHub Actions &middot; ruff &middot; UV &middot; pre-commit &middot; Renovate
Our platform runs on Kubernetes-managed services and Terraform for infrastructure as code. We continue expanding capabilities in knowledge graphs (Neo4j) and modern data access patterns.
What we offer:<ul><li>
Impactful work that helps patients gain access to potentially lifesaving treatments.</li><li>
International work environment, scale-up energy and a flat organizational structure that encourages creativity and accountability.</li><li>
Competitive salary, annual performance bonus and an Employee Stock Option Plan.</li><li>
Great career development opportunities in a fast-growing company.
</li><li>Learning and development budget alongside internal knowledge sharing sessions.</li><li>
Attractive pension plan, full premium covered by myTomorrows.</li><li>
Hybrid working model.</li><li>
Policies to support working parents.</li><li>
Healthy lunch at the thriving Amsterdam office.
</li><li>Unlimited access to professional guidance by certified psychologists via OpenUp
</li><li>Enjoy monthly events hosted by our vibrant Culture Club as well as an annual &lsquo;myTomorrowland&rsquo; company-wide celebration!</li></ul> 
Equal opportunities
myTomorrows is an Equal Opportunity Employer and, beyond upholding discrimination-free practices, we are committed to cultivating a workplace where difference and diversity are protected and celebrated. The best work comes from our best selves, and we go to great lengths in supporting our team members to be just that.</div>

Fullstack 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

JetBrains

<div><div><div><div>JetBrains is a global software company that creates intelligent tools for software developers and teams. Since 2000, we have built products that help developers work more productively, write higher-quality code, and stay focused on solving real problems.

The JetBrains Research team is looking for a Senior Research Engineer to work on Code World Models: models that learn how software systems behave, change, execute, and interact with developer tools.

This role is focused on model pre-training and mid-training for code-centric foundation models. You will work on data, training pipelines, evaluation, and experiments that improve how models understand programs, repositories, execution, tests, and software engineering workflows.
<h2 class="jobSectionHeader">
In this role, you will:</h2>
<ul><li>Design and run pre-training, continued pre-training, and mid-training experiments for code models.</li>
<li>Build and improve data pipelines for large-scale model training, including filtering, deduplication, mixture design, and dataset quality checks.</li>
<li>Work with code corpora, repositories, tests, execution traces, and synthetic data.</li>
<li>Develop evaluations for complex repository-level code reasoning tasks.</li>
<li>Collaborate with researchers and engineers working on ML for code and AI developer tools.</li>
</ul><h2 class="jobSectionHeader">We&rsquo;ll be happy to have you on our team if you:</h2>
<ul><li>Have hands-on experience with model pre-training, continued training, or mid-training.</li>
<li>Have strong engineering skills in Python and experience with modern ML frameworks.</li>
<li>Understand large-scale ML training workflows, including data processing, distributed training, checkpointing, evaluation, experiment tracking, and debugging.</li>
<li>Have experience working with large datasets and care about data quality, contamination, sampling, and reproducibility.</li>
<li>Have a background in NLP, ML for software engineering, or a similar domain.</li>
<li>Enjoy working on research problems with high uncertainty and turning ideas into working experiments.</li>
</ul><h2 class="jobSectionHeader">It would be a plus if you:</h2>
<ul><li>Have experience training or adapting models for code generation, code understanding, software agents, program repair, test generation, or repository-level reasoning.</li>
<li>Have worked with execution-based data, such as unit tests, traces, logs, compiler feedback, runtime states, or sandboxed code execution.</li>
<li>Have experience with large-scale distributed training of models with 70B+ parameters.</li>
<li>Understand evaluation challenges for code models, including benchmark contamination, flaky tests, execution-based scoring, and long-horizon task evaluation.</li>
<li>Have contributed to ML infrastructure, open-source projects, or research systems.</li>
</ul></div></div><div><div>#LI-KP1</div>
</div></div><div>
We are an equal opportunity employer 
 
We know great ideas can come from anyone, anywhere. That&rsquo;s why we do our best to create an open and inclusive workplace &ndash; one that welcomes everyone regardless of their background, identity, religion, age, accessibility needs, or orientation.

We process the data provided in your job application in accordance with the Recruitment Privacy Policy.</div></div>

Senior Research Engineer (Code World Models)

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