PhD in Computational Geometry and Computational Topology

Introduction
Computational geometry and computational topology are areas of research focused on the design and analysis of algorithms for spatial data. These algorithms typically leverage geometric and topological structure present in the data to obtain efficient solutions. This project focuses on computing similarities between networks in a spatial context, such as networks embedded in the Euclidean plane, or on a terrain. We intend to develop topology- and geometry-aware graph edit distances, drawing inspiration from well-studied variants of the Fréchet distance between curves. The project is led by dr. Tim Ophelders and will employ two PhD students.

Job Description
As a PhD student working on the project, your main task will be to perform research, in close collaboration with your supervisory team and others involved in the project. Each PhD student will be guided by two advisors: dr. Tim Ophelders and prof. dr. Bettina Speckmann. Your tasks as a PhD student also include participating in international conferences and workshops to present your results. Besides working on your research project, you will also assist in some algorithms-related courses, as a teaching assistant (TA).

You will be working in the TU/e Algorithms cluster, one of the largest research groups world-wide that focuses on algorithms research. The cluster currently has 10 faculty members, whose research interests include computational geometry and topology, graph and FPT algorithms, moving object analysis, geo-visualization, and mobile agents; please visit https://algo.win.tue.nl/ for more details on the cluster. The cluster provides a lively and international environment for your research.

As a PhD student, you do need not speak Dutch: it is easy to get by with English, not only at the university (where all courses are taught in English) but also in everyday life.

Job Requirements

• A master’s degree (or an equivalent university degree) in Mathematics or Computer Science, with a strong background in algorithms.
• A passion for research in computational geometry and computational topology.
• An interest in teaching algorithms-related courses.
• Fluent in spoken and written English (C1 level).

Conditions of Employment
A meaningful job in a dynamic and ambitious university, in an interdisciplinary setting and within an international network. You will work on a beautiful, green campus within walking distance of the central train station. In addition, we offer you:

• Full-time employment for four years, with an intermediate assessment after nine months. You will spend a minimum of 10% of your four-year employment on teaching tasks, with a maximum of 15% per year of your employment.
• Salary and benefits (such as a pension scheme, paid pregnancy and maternity leave, partially paid parental leave) in accordance with the Collective Labour Agreement for Dutch Universities, scale P (min. € 3,059 - max. € 3,881).
• A year-end bonus of 8.3% and annual vacation pay of 8%.
• High-quality training programs and other support to grow into a self-aware, autonomous scientific researcher. At TU/e we challenge you to take charge of your own learning process.
• An excellent technical infrastructure, on-campus children's day care and sports facilities.
• Unlimited access to the modern on‑campus TU/e Student Sports Center at an exceptionally affordable rate.
• An allowance for commuting, working from home and internet costs.
• A Staff Immigration Team and a tax compensation scheme (the 30% facility) for international candidates.

On our website you can discover even more information about our conditions of employment. Build on your career at TU/e!

About us
We are a leading international university where scientific curiosity meets a hands-on mindset. We work in an open and collaborative way with high-tech industries to tackle complex societal challenges. Our responsible and respectful approach ensures impact — today and in the future. TU/e is home to over 13,000 students and more than 7,000 staff, forming a diverse and vibrant academic community.

Our university is located in Brainport Eindhoven — a world‑leading tech region with more than 7,000 high‑tech companies and strong R&D activity. Known for breakthroughs in AI, photonics, semiconductors and advanced manufacturing, Brainport is a place where technology serves people and society. Learn more about the Brainport region here.

As one of the largest and most dynamic academic communities in the Netherlands, the department Mathematics and Computer Science (M&CS) brings together more than 140 scientific staff, over 250 PhD and EngD candidates, and nearly 3000 students. We collaborate closely with leading industrial partners in the Brainport Eindhoven region and with universities across the globe—creating a uniquely fertile environment for both fundamental breakthroughs and applied innovation.

Information
Do you recognize yourself in this profile and would you like to know more? Please contact dr. Tim Ophelders (t.a.e.ophelders@tue.nl).

Visit our website for more information about the application process. You can also contact HR Services (hrservices.mcs@tue.nl).

Curious to hear more about what it’s like as a PhD candidate at TU/e? Please view the video.

Are you inspired and would like to know more about working at TU/e? Please visit our career page.

Application
We invite you to submit a complete application by using the apply button. The application should include a:

• Cover letter in which you describe your motivation and qualifications for the position.
• Curriculum vitae, including a list of your publications and the contact information of three references. Kindly note that we may reach out to references at any stage of the recruitment process. We recommend notifying your references upon submitting your application.

Ensure that you submit all the requested application documents. Please note that incomplete applications may not be considered and could be rejected.

We look forward to receiving your application and will screen it as soon as possible. The vacancy will remain open until the position is filled: for full consideration, submit your application by May 31.

Please note

• You can apply online. We will not process applications sent by email and/or post.
• A pre-employment screening (e.g. knowledge security check) can be part of the selection procedure. For more information on the knowledge security check, please consult the National Knowledge Security Guidelines.
• Please do not contact us for unsolicited services.

Freelance Senior Angular Developer

Als Senior Angular Front-end Developer neem je een richtinggevende rol op binnen het front-end team en werk je mee aan de verdere evolutievan een enterprise cockpitomgeving.

Je verantwoordelijkheden omvatten onder andere:

• Uitvoeren van een audit op de bestaande front-end architectuur, kwaliteit en herbruikbaarheid
• Detecteren van verbeterpunten en uitwerken van concrete optimalisaties
• Mee uitbouwen van een schaalbare en onderhoudbare UI-architectuur
• Werken met Angular, TypeScript, HTML/CSS en REST API-integraties
• Opzetten en bewaken van een duidelijke front-end release- en branchingstrategie
• Afstemmen met backend- en platformteams rond compatibiliteit en breaking changes
• Coaching en ondersteuning van andere ontwikkelaars binnen het team
• Actief meewerken binnen een Agile/Scrum omgeving

Customer Service Expert

• Je bent het eerste aanspreekpunt voor klanten en retailers en bouwt sterke, duurzame relaties op.
• Je adviseert klanten professioneel over producten, collecties en promoties en denkt actief mee over hun noden.
• Je detecteert commerciële opportuniteiten en neemt proactief contact op om klanten optimaal te ondersteunen.
• Je beheert klantorders van A tot Z en zorgt voor een nauwkeurige opvolging van administratie, leveringen en retouren.
• Je werkt nauw samen met verschillende interne afdelingen en ondersteunt bij facturatie, betalingen en aftersales.

Teamondersteuner Team Werk & Participatie

Teamondersteuner Team Werk & Participatie
MBO | €2.875 - €4.065 | Schaal 7 | Tijdelijk met uitzicht op een vast dienstverband | 24 uur

Jouw functie
Wil jij een rol waarin je écht het verschil maakt voor inwoners? Als teamondersteuner ben jij de onmisbare schakel achter de schermen. Dankzij jou kunnen consulenten en accountmanagers doen waar zij goed in zijn: mensen begeleiden naar werk en zelfstandigheid.

Werken als Teamondersteuner bij gemeente Haarlemmermeer betekent …

• Ondersteunen van consulenten en accountmanagers bij hun werkzaamheden;
• Afspraken plannen, uitnodigingen versturen en het regelen van gespreksruimtes;
• De administratieve spil zijn waar het team op mag leunen.

Dit ga je doen
Als teamondersteuner van Team Werk & Participatie zorg je voor administratieve ondersteuning. Je regelt dat inwoners tijdig een uitnodiging ontvangen voor een intake- of vervolggesprek, je verwerkt meldingen en terugbelverzoeken en je houdt controlelijsten bij. Je draagt bij aan procesverbetering en denkt actief mee over op welke taken je nog meer ondersteuning kan bieden. Je voelt goed aan wat het team nodig heeft en schakelt snel. Drukke dagen? Daar draai jij je hand niet voor om. Jij houdt overzicht, stelt prioriteiten en blijft rustig.

Werken in het Sociaal Domein
Ons Sociaal Domein is volop in ontwikkeling. We werken in 2026 aan een organisatie die beter kan inspelen op de grote maatschappelijke opgaven van vandaag en morgen en waarbij we per 2027 op een andere manier willen gaan werken.

Daarom verkennen we nieuwe manieren van samenwerken, waarbij we ons organiseren rondom belangrijke thema’s zoals;

• Werk, Inkomen, Schulden
• Wonen, Leefbare Wijken en Migratie
• Jeugd en Onderwijs
• Maatschappelijke Ondersteuning en Welzijn

Binnen deze aanpak werken beleid, uitvoering en ondersteuning nauw met elkaar samen. Door deze verbinding kunnen we sneller inspelen op nieuwe wetgeving en op veranderingen in de behoeften van onze inwoners.

Voor jou betekent dit dat je komt te werken in een dynamische omgeving, waarin samenwerking over teams en thema’s heen vanzelfsprekend is.

Spreekt het je aan om bij te dragen aan deze ontwikkeling en werk je graag in een omgeving die in beweging is? Dan nodigen we je van harte uit om te reageren. Tijdens de procedure vertellen we je graag meer over de actuele ontwikkelingen.

Dit bieden wij

• Een warm welkom, goede begeleiding en grote collegiale betrokkenheid.
• Een salaris tussen de €2.875,- en €4.065,- bruto per maand op basis van een 36-urige werkweek.
• Een individueel keuzebudget van 17,05% van je bruto maandsalaris dat je kunt laten uitbetalen of waarmee je bijvoorbeeld extra vakantiedagen kunt kopen.
• Een goed pakket met secundaire arbeidsvoorwaarden, zoals een ABP-pensioenregeling.
• Gemeente Haarlemmermeer biedt je ruimte om je werk en privé optimaal te combineren. Met flexibele werklocaties en oplossingen werk je net zo eenvoudig vanaf kantoor, huis of projectlocatie. Dit ondersteunen wij met een laptop en telefoon.
• Professionele groei met onze leerportaal Bouw aan Jezelf, loopbaancoaching en Het Goede Gesprek.
• Persoonlijke vitaliteit dankzij het MEERVitaal-programma en uiteenlopende activiteiten, zoals de maand van de vitaliteit, ondersteuning bij mantelzorg, workshops en veel meer.
• Jonge Ambtenaren: een netwerk met en voor alle nieuwe collega’s (jong én oud).
• We stimuleren reizen met het openbaar vervoer en de (elektrische) fiets. Reis je met het OV? Dan vergoeden we dit volledig.
  Kom je met de fiets, dan krijg je € 0,23 per kilometer. Gebruik je je eigen auto of motor, dan kun je € 0,23 per kilometer uitruilen via het IKB (bruto-netto).
  Houd er rekening mee dat de parkeergelegenheid voor eigen rekening is en afhankelijk van locatie beperkt beschikbaar.

Dit neem je mee
Jij bent een echte regelaar met oog voor detail. Je werkt zelfstandig, maar bent ook een teamspeler.

Verder heb je:

• heb je mbo werk- en denkniveau;
• heb je ruime ervaring met administratieve ondersteuning;
• communiceer je helder, zowel mondeling als schriftelijk als telefonisch;
• ben je nauwkeurig, proactief en stressbestendig;
• voel je je thuis in een digitale werkomgeving.

Herken jij je hierin? Dan maken we graag kennis met je
Upload je motivatie – waarin je aangeeft wat jou inspireert in deze functie – en je cv uiterlijk maandag 1 juni 2026 via het sollicitatieformulier.

Meer weten over deze vacature?
Neem contact op met Erlijn Netz, Teammanager-SDV-Werk, via 023-5676154 of Erlijn.Netz@haarlemmermeer.nl. Voor meer informatie over de sollicitatieprocedure kun je contact opnemen met NIck Pijpers, Corporate Recruiter, via 023-5676065 of nick.pijpers@haarlemmermeer.nl.

Procedure
Onze vacature staat open tot en met maandag 1 juni 2026 en wij zijn voornemens om direct in gesprek te gaan met geschikte kandidaten. Wacht daarom niet te lang met wachten omdat wij de vacature mogelijk eerder afsluiten zodra wij een geschikte kandidaat hebben gevonden.

Wat verder goed is om te weten

• Voor indiensttreding vragen wij een Verklaring Omtrent het Gedrag (VOG). Afhankelijk van de functie gaat het om een VOG of een VOG-P. Gemeente Haarlemmermeer bepaalt welke verklaring van toepassing is.
• Lees hier meer over de CAO Gemeenten 2025-2027.
• Lees hier meer over onze arbeidsvoorwaarden, opleidingsmogelijkheden, werktijden, verlof en meer.
• Overige openstaande vacatures in het sociaal domein.

NB. Ongevraagde acquisitie door bemiddelingsbureaus stellen we niet op prijs en kan leiden tot uitsluiting bij onze andere wervingsacties. Ook het ongevraagd sturen van cv’s door bureaus aan onze medewerkers zien we als acquisitie. Deze cv’s nemen wij niet in behandeling

Assistant Professors in Mission-Driven Research on Future-Proof Networks

Introduction
Are you eager to fuel a quantum leap in network mathematics by designing and analyzing Future-Proof Networks that deliver tangible benefits to society? And are you motivated by mission-driven, collaborative research with real-world impact? The Department of Mathematics and Computer Science, Eindhoven University of Technology (TU/e) is looking for three Assistant Professors as founding faculty members of an ambitious moonshot research initiative on Future-Proof Networks. We are looking for researchers who are fully committed to the mission of Future-Proof Networks - networks that are robust, adaptive and sustainable by design. Successful candidates will be able to translate this mission into clear and actionable research goals and will be motivated to demonstrate and validate Future-Proof Networks concepts in practice, bridging fundamental theory and real-world applications.

Job Description
The Department of Mathematics and Computer Science is in the process of formulating and achieving a moonshot research initiative on Future-Proof Networks. The research questions focus on the mathematical foundations of networks, aiming to enable networked systems that are inherently robust, adaptive, and sustainable by design, with the ultimate goal of delivering meaningful societal impact. The moonshot addresses research questions in the mathematics of networks, focusing on how network structure, dynamics, uncertainty, and scale can be understood and controlled to ensure long‑term performance and resilience. The ambition is to advance fundamental theory while creating direct pathways toward practice and societal relevance. The scientific leadership and intellectual inspiration for this moonshot is provided by Prof. Remco van der Hofstad.

We are looking for researchers who embrace interdisciplinary research within the disciplines of mathematics (statistics, stochastic operations research, probability, analysis, discrete mathematics) and across disciplines (e.g., data science, computer science, and the humanities) to achieve the mission of Future-Proof Networks. We expect successful candidates to contribute actively to the development of a mission-driven research program with clear routes to societal impact. Possible contributions include, but are not limited to:

• Develop foundational design paradigms for Future-Proof Networks that embed robustness, adaptability, and sustainability.
• Ensure theoretical guarantees for network functionality, performance, and resilience under uncertainty and change.
• Advancing the scientific community by providing novel theories, methods, and analytical tools for the study of complex networks.
• Facilitate schools nationally and worldwide to deploy our research-based instruments.

The ideal candidate has a research profile that aligns with Network Mathematics, and has research experience in a multidisciplinary environment, and experience with mission-driven research. You will strengthen the moonshot focus areas, and broaden its capacity in addressing societal problems in network mathematics. You will contribute in an essential way to shaping the focus of the moonshot, as well as performing research targeting the moonshot research questions. You also play a leading role in building a community within the Department around the moonshot research questions on Future-Proof Networks. Candidates with a background in statistics and stochastic operations research are particularly encouraged to apply.

Job Requirements

• PhD in Mathematics, Statistics, or a comparable domain.
• Strong communication skills, across the boundaries of your scientific domain.
• Ability to conduct high quality academic research, reflected in demonstratable outputs.
• Experience in successful interdisciplinary research.
• Experience in conducting research with external non-academic partners.
• Motivation to engage in mission-driven research on Future-Proof Networks, with a focus on delivering targets, providing proof-of-concept, and showcasing results, where experience is beneficial.
• Motivated to teach, contribute to teaching processes, and to develop excellent teaching skills.
• Effective communication and leadership skills, including the ability to (co-) supervise PhD candidates, BSc and MSc thesis students, and leading a research project.
• Strong cooperation skills and ability to work in an interdisciplinary team.
• Effective communication and leadership skills, including coaching and mentoring of students and staff, leading a project or chairing a group.
• Ability to develop and deliver research-oriented education.
• Excellent (written and verbal) proficiency in English.

Conditions of Employment
A meaningful job in a dynamic and ambitious university, in an interdisciplinary setting and within an international network. You will work on a beautiful, green campus within walking distance of the central train station. In addition, we offer you:

• Salary in accordance with the Collective Labour Agreement for Dutch Universities, scale 11 (min. € 4728,- max € 6433,-).
• A year-end bonus of 8.3% and annual vacation pay of 8%.
• A dedicated mentoring program to help you get to know the university and the Dutch (research) environment.
• A Development Track with the prospect of becoming an Associate Professor. If you have a more senior profile, a tailor-made career proposal will be considered.
• High-quality training programs for academic leadership and teaching.
• An excellent technical infrastructure, on-campus children's day care and sports facilities.
• Unlimited access to the modern on‑campus TU/e Student Sports Center at an exceptionally affordable rate.
• Partially paid parental leave and an allowance for commuting, working from home and internet costs.
• A Staff Immigration Team is available for international candidates, as are a tax compensation scheme (the 30% facility) and partner career support.

On our website you can discover even more information about our conditions of employment. Build on your career at TU/e!

About us
We are a leading international university where scientific curiosity meets a hands-on mindset. We work in an open and collaborative way with high-tech industries to tackle complex societal challenges. Our responsible and respectful approach ensures impact — today and in the future. TU/e is home to over 13,000 students and more than 7,000 staff, forming a diverse and vibrant academic community.

You will join the Department of Mathematics and Computer Science (M&CS). With over 140 (assistant, associate and full) professors, almost 250 PhD and EngD students, nearly 3000 students, M&CS is the largest department of the TU/e. By performing top-level fundamental and applied research, and maintaining strong ties with industry, M&CS aims to contribute to science and innovation in and beyond the region.

Our university is located in Brainport Eindhoven — a world‑leading tech region with more than 7,000 high‑tech companies and strong R&D activity. Known for breakthroughs in AI, photonics, semiconductors and advanced manufacturing, Brainport is a place where technology serves people and society. Learn more about the Brainport region here.

Information
Do you recognize yourself in this profile and would you like to know more?
Please contact the hiring manager Prof. dr. Remco van der Hofstad, Full professor in Probability, r.w.v.d.hofstad@tue.nl.

Visit our website for more information about the application process. You can also contact Annette van Kamp-Rustenburg, senior recruiter, a.j.v.kamp.rustenburg1@tue.nl.

Curious to hear more about what it is like as a professor at TU/e? Please watch the video.

Are you inspired and would like to know more about working at TU/e? Please visit our career page.

Application
We invite you to submit a complete application. The application should include a:

• Cover letter in which you describe your motivation and qualifications for the position.
• Curriculum vitae, including a list of your publications and the contact information of three references. Kindly note that we may reach out to references at any stage of the recruitment process. We recommend notifying your references upon submitting your application.
• Description of your scientific interests and plans, including a specific proposal of a societal network challenge that you would like to work on (1-2 pages).
• Statement of your teaching goals and experience (1-2 pages).

Ensure that you submit all the requested application documents. Please note that incomplete applications may not be considered and could be rejected.

We look forward to receiving your application and will review all submissions after the vacancy’s closing date.

Please note

• You can apply online. We will not process applications sent by email and/or post.
• A pre-employment screening (e.g. knowledge security check) can be part of the selection procedure. For more information on the knowledge security check, please consult the National Knowledge Security Guidelines.
• Please do not contact us for unsolicited services.