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Senior Software Engineer (Java and/or Python)

Gapstars

Oferta Full-time
Tecnologia Lisboa, PT €1 100 - €1 945/mês mercado Posted 3 weeks ago
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Applications
02/02/2026
Há 3 weeks ago

Description

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About

Gapstars

Gapstars is a Netherlands-based software development services provider that builds remote, agile teams in Sri Lanka and Portugal for innovative tech companies.

Today, we are home to 275+ TechStars and innovative minds, turning scalable software into performance products that shape the future.

Our partners are highly ambitious tech companies that are looking to conquer their respective markets.

Requirements

We are seeking a Senior Software Engineer to help scale a fast-growing FinTech’s cloud-based data and analytics platform used by leading global market participants.

You’ll build reliable, secure, high-quality systems that power large-scale data distribution, with a strong focus on hands-on engineering, automation, and data visualization.

This is a hybrid role.

Based in Lisbon, Portugal.

On a daily basis you will:

Contribute to a rapidly growing fintech .

Understand the business needs and translate high-level objectives into well-architected,

scalable solutions using the best of GCP.

Build robust, secure, and reliable systems, ensuring practical workarounds are in place to

maintain service continuity in case of failures.

Plan and execute well-structured releases with minimal disruption and clear rollback strategies.

Mentor and support junior team members, fostering a culture of learning and growth.

Must Have Skills

A minimum of 5 years of experience in Python and/or Java,

Proficiency in databases or cloud data warehouses (SQL, PostgreSQL, MySQL, or similar).

Experience in data visualization toolkits, such as Plotly, Bokeh, and Matplotlib

You have an ownership mindset and a natural curiosity—you seek to fully understand and take responsibility for both the problem and the solution.

Nice to Have Skills

Experience working in regulated industries (e.g., finance, pharmaceuticals).

Experience with cloud and serverless architectures; familiarity with GCP is a plus.

Dash exposure - strongly beneficial

Experience in data engineering, working with large-scale datasets.

Familiarity with FIX protocol and/or exchange connectivity.

Experience owning or evolving technology stacks.

Ability to collaborate effectively with senior stakeholders.

Interested?

We would love to hear from you.

If this opportunity sounds like a fit, please send your CV to paula@gapstars.net.

Weather on start day

Thursday, 26 de February — Partly cloudy · Max 19° · Min 12° · Rain 10% (0mm) · Wind 8 km/h

Previsão para os dias seguintes

  • Fri, 27 Feb
    Showers
    Max 17° · Min 12°
  • Sat, 28 Feb
    Partly cloudy
    Max 16° · Min 11°
  • Sun, 1 Mar
    Partly cloudy
    Max 17° · Min 10°
  • Mon, 2 Mar
    Showers
    Max 18° · Min 12°

Detalhes

Listing type
Job Offer
Schedule Type
Full-time
Category
Tecnologia
Status
—
Location
Lisboa, PT
Start
02/02/2026
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Salário de Mercado

€1 100 - €1 945/mês