Software Engineer III

Talent Octopusventures

Greater London

Hybrid

GBP 42,000 - 70,000

Full time

14 days+
Application generator

A complete application in a minute — tailored resume and cover letter, ready to send.

Get past ATS filters

Benefits offered by this job

Hybrid work
Flexible hours
Remote work abroad up to 20 days/year
Competitive salary
In-house gym

Job summary

Nextens is seeking a Software Engineer to join Team Fiscal in Amsterdam. You will build and enhance the Dutch tax filing platform, developing APIs and front-end components to ensure a scalable, reliable solution.

Bring 2-5 years of experience with .NET Core and Azure, plus a degree in computer science or a related field. English fluency is required; Dutch reading helps. This hybrid role offers growth in a high-stakes domain.

Qualifications

  • 2-5 years of hands-on software development experience, ideally with .NET Core and Azure.
  • Degree in Computer Science, Software Engineering, or equivalent experience.
  • Interest in AI-assisted development tools as part of daily work.
  • Fluent English; reading Dutch requirements is helpful but not essential.

Responsibilities

  • Build and enhance core modules for tax filing and compliance used by thousands.
  • Develop back-end and front-end components (APIs, interfaces, integrations) for a scalable platform.
  • Collaborate with domain experts and product owners to translate regulations into software.
  • Ensure quality through testing, refactoring, and continuous improvement.

Skills

.NET Core
Azure
English fluency
Angular
React

Education

Bachelor's degree in Computer Science or equivalent

Tools

Angular
React

Job description

Software Engineer – .NET/Azure Tax Platform

Amsterdam | Hybrid Work Model | Full-Time

Taxes are complex. We make them manageable.

Nextens develops the leading tax and compliance platform for professionals in the Netherlands. Trusted by thousands of experts, our software helps organizations stay compliant, operate efficiently, and deliver accurate results. Each year, we process over a million filings, handling evolving tax rules, performance at scale, and complex data workflows with precision and reliability.

Built on deep domain expertise and a commitment to continuous innovation, Nextens not only ensures compliance, we set the standard for how tax professionals work.

Your Role

As a Software Engineer at Nextens, you work on a business‑critical platform used daily by thousands of professionals. You develop new functionality, expand existing modules, and ensure that our software remains reliable, well‑tested, and future‑proof.

You enjoy technical challenges and have a strong eye for quality and sustainability. Together with domain experts, fellow engineers, and product owners, you build software that our customers can trust completely.

You will join Team Fiscal, a product engineering team responsible for key parts of our Dutch tax filing platform. Together with fiscal experts and product colleagues, the team translates changing legislation into reliable software for tax professionals across the Netherlands.

Key responsibilities include:
  • Build and enhance core modules for tax filing and compliance, used by thousands of professionals every year.
  • Use modern engineering practices, including AI‑assisted development tools where appropriate, to improve productivity, quality, and maintainability.
  • Develop back‑end and front‑end components (APIs, interfaces, integrations) to ensure a scalable and stable platform, even with large data volumes and complex tax logic.
  • Contribute to new features and innovations, such as integrations with external systems and tools for tax advisory workflows.
  • Work closely with domain experts and product owners to translate regulations and customer needs into reliable software solutions.
  • Safeguard quality and maintainability through testing, refactoring, and continuous improvement of both new and existing code.
What You Bring
  • A bachelor's degree in Computer Science, Software Engineering, or equivalent experience.
  • 2-5 years of hands‑on software development experience, ideally with .NET Core and Azure.
  • Interest in using AI‑assisted development tools responsibly as part of everyday engineering work.
  • Strong analytical and problem‑solving skills, especially when working with complex logic or data.
  • A collaborative mindset — you enjoy working closely with engineers and domain experts to create practical, high‑quality solutions.
  • A focus on clean, maintainable code and a habit of writing tests to ensure quality.
  • Fluency in English is required. You can read and understand Dutch requirements texts; spoken Dutch is helpful but not essential.
Why Join Us

At Nextens, your work powers the backbone of professional Dutch tax processing and helps thousands of professionals work smarter, faster, and more confidently. Our customers trust us not only for accuracy and compliance, but also because we innovate and improve how they work.

What makes this role unique:
  • Technical challenges - scalable systems, evolving regulations, and high‑volume data processing.
  • Real impact - your solutions directly support over 1 million filings every year.
  • Ownership - take responsibility for meaningful parts of the platform and contribute to technical choices.
  • Growth opportunity - deepen your technical expertise and expand your skills in a high‑stakes domain.
What we offer you:
  • Hybrid flexibility - combine working from home with collaboration at our modern Amsterdam office.
  • Work‑life balance - flexible hours, generous vacation days, and up to 20 days of remote work abroad per year.
  • Competitive package - a strong salary, attractive benefits, and professional development opportunities.
  • Great environment - a collaborative workplace, fully equipped in‑house gym, and regular team‑building activities.

Ready to Build What Matters? If you're eager to tackle complex engineering problems and shape how tax professionals work, we’d like to hear from you. Build software where precision matters and your expertise leads the way.

Software Engineer – .NET/Azure Tax Platform

Amsterdam | Hybride werkmodel | Fulltime

Belastingen zijn complex. Wij maken ze beheersbaar.

Nextens ontwikkelt het toonaangevende platform voor fiscale software en compliance in Nederland. Duizenden belastingadviseurs en financiële professionals vertrouwen dagelijks op onze oplossingen om te voldoen aan wet‑en regelgeving, efficiënter te werken en zorgeloos aangifte te doen.

Onze software verwerkt jaarlijks meer dan 1 miljoen aangiftes en ondersteunt organisaties bij het omgaan met grote hoeveelheden data en steeds veranderende fiscale regels. Dankzij onze diepe domeinkennis en voortdurende innovatie zijn wij niet alleen een betrouwbare partner, maar ook een richtinggever voor hoe professionals in de toekomst werken.

Jouw rol

Als Software Engineer bij Nextens werk je aan onderdelen van een platform dat dagelijks door duizenden professionals wordt gebruikt. Je ontwikkelt nieuwe functionaliteiten, breidt bestaande modules uit en zorgt ervoor dat onze software betrouwbaar, goed testbaar en toekomstvast blijft.

Je krijgt energie van technische uitdagingen en hebt oog voor kwaliteit en toekomstbestendigheid. Samen met domeinexperts, andere engineers en productowners bouw je software waar onze klanten blind op kunnen vertrouwen.

Je komt terecht in Team Fiscal, een product engineering team dat verantwoordelijk is voor belangrijke onderdelen van ons Nederlandse belastingaangifteplatform. Samen met fiscale experts en productcollega’s vertaalt het team veranderende wet‑en regelgeving naar betrouwbare software voor belastingprofessionals in heel Nederland.

Je werkzaamheden:
  • Bouwen aan core modules voor belastingaangifte en compliance, waarmee jaarlijks duizenden professionals werken.
  • Moderne engineeringpraktijken toepassen, waaronder AI‑ondersteunde ontwikkeltools waar passend, om productiviteit, kwaliteit en onderhoudbaarheid te verbeteren.
  • Ontwikkelen van back‑end en front‑end componenten (API's, interfaces, integraties) voor een schaalbaar en stabiel platform, ook bij grote datavolumes en complexe belastinglogica.
  • Meewerken aan nieuwe features en innovaties, zoals koppelingen met externe‑pakketten, of integratie van tools voor fiscale advisering.
  • Samenwerken met domeinexperts en product owners om regels en klantwensen te vertalen naar betrouwbare software.
  • Zorgen voor kwaliteit en onderhoudbaarheid via testen, refactoring en het verbeteren van nieuwe en bestaande code.
Wat jij meebrengt
  • Een afgeronde hbo‑ of wo‑opleiding in informatica, software engineering of vergelijkbaar.
  • 2-5 jaar ervaring in softwareontwikkeling met .NET Core en Azure.
  • Kennis van moderne webtechnologieën, zoals Angular, React of vergelijkbare frameworks.
  • Interesse om AI‑ondersteunde ontwikkeltools verantwoord in te zetten als onderdeel van dagelijks engineeringwerk.
  • Een gestructureerde, analytische manier van denken.
  • Een samenwerkende instelling: je zoekt actief de samenwerking op om tot praktische, elegante oplossingen te komen.
  • Je beheerst Engels goed en kunt Nederlandstalige teksten lezen en begrijpen; Nederlands spreken is mooi meegenomen, maar geen vereiste.
Waarom Nextens

Bij Nextens werk je aan software die echt het verschil maakt. Onze klanten vertrouwen op ons voor nauwkeurigheid en verwachten dat wij blijven innoveren. Hier bouw je niet alleen mee aan het huidige platform, maar ook aan de manier waarop professionals in de toekomst werken.

Wat deze rol bijzonder maakt:
  • Technische uitdaging - complexe algoritmes, hoge datavolumes en veranderende fiscale regels.
  • Zichtbare impact - jouw oplossingen ondersteunen jaarlijks meer dan 1 miljoen aangiftes.
  • Eigenaarschap - je neemt verantwoordelijkheid voor betekenisvolle onderdelen van het platform en draagt bij aan technische keuzes.
  • Persoonlijke groei - ontwikkel je technische expertise en vaardigheden binnen een hoogwaardig domein.
Wat wij jou bieden:
  • Hybride werken - combineer thuiswerken met samenwerken op ons moderne kantoor in Amsterdam.
  • Goede werk‑privébalans - flexibele werktijden, ruim aantal vakantiedagen en de mogelijkheid om 20 dagen per jaar vanuit het buitenland te werken.
  • Sterk arbeidsvoorwaardenpakket - competitief salaris, aantrekkelijke secundaire voorwaarden en ruimte voor professionele ontwikkeling.
  • Fijne werkomgeving - collegiale sfeer, volledig uitgeruste in‑house gym en regelmatige teamactiviteiten.

Klaar om te bouwen aan wat ertoe doet?

Wil jij werken aan complexe technische uitdagingen én invloed hebben op hoe belastingprofessionals hun werk doen? Sluit je dan aan bij Nextens en bouw mee aan oplossingen waar precisie telt en jouw expertise het verschil maakt.

Primary Location Base Pay Range: NLD Amsterdam (Radarweg) €49,000 - €81,700.

We know your well‑being and happiness are key to a long and successful career. We are delighted to offer country specific benefits.

We are committed to providing a fair and accessible hiring process. If you have a disability or other need that requires accommodation or adjustment, please let us know by completing our Applicant Request Support Form or please contact 1-855-833-5120.

We are an equal opportunity employer: qualified applicants are considered for and treated during employment without regard to race, color, creed, religion, sex, national origin, citizenship status, disability status, protected veteran status, age, marital status, sexual orientation, gender identity, genetic information, or any other characteristic protected by law.

USA Job Seekers: EEO Know Your Rights.

Get your free, confidential resume review.

or drag and drop your file here.

Similar jobs

Similar jobs worth comparing

Senior Software Engineer I
Senior Software Engineer I

Talent Octopusventures • Greater London

Hybrid
GBP 56,000 - 93,000
Hybrid flexibility
Remote days abroad
Competitive package
+1
Senior .NET/Azure Tax Platform Engineer
Senior .NET/Azure Tax Platform Engineer

Talent Octopusventures • Greater London

Hybrid
GBP 42,000 - 70,000
Hybrid work
Flexible hours
Remote work abroad up to 20 days/year
+2
Senior .NET Engineer — Hybrid Tax Platform
Senior .NET Engineer — Hybrid Tax Platform

Talent Octopusventures • Greater London

Hybrid
GBP 56,000 - 93,000
Hybrid flexibility
Remote days abroad
Competitive package
+1
Technical Lead (Python, AWS, Terraform Experience)
Technical Lead (Python, AWS, Terraform Experience)

Netcompany • Greater London

On-site
GBP 90,000 - 120,000
Hybrid working model
Private Medical Health care via Vitaly
Pension contribution
+4
Full Stack Software Engineer (Frontend-leaning)
Full Stack Software Engineer (Frontend-leaning)

United States Digital Space LLC • Greater London

On-site
GBP 90,000 - 140,000
Competitive salary
Generous EMI options
100% book subsidy
+3
Tax Engineer
Tax Engineer

Hackajob Ltd • City Of London

On-site
GBP 90,000 - 130,000
Senior Sales & Business Development Representative
Senior Sales & Business Development Representative

Wolters Kluwer - Financial Services Solutions • Kingston

Hybrid
GBP 70,000 - 120,000
AWS/Python Software Engineer
AWS/Python Software Engineer

E.ON Next • City Of London

On-site
GBP 90,000 - 150,000
26 days annual leave
Generous pension
Life cover
+3
Senior Data Scientist I - LeapSpace
Senior Data Scientist I - LeapSpace

Elsevier • City Of London

On-site
GBP 70,000 - 100,000
Holiday allowance
Health screening
Life assurance
+7
MES/MOM/MSB CoE IT Specialist (MSB)
MES/MOM/MSB CoE IT Specialist (MSB)

GKN • Bristol

Hybrid
GBP 34,000 - 50,000
Hybride werken
8% vakantiegeld
40 betaalde vakantiedagen
+3