Senior Software Engineer

Thunes Ltd; Barcelona; On-site; EUR 85,000 - 110,000; Full time

Benefits offered by this job

Performance bonus

Health insurance

Life Insurance

Hybrid working policy

Office near Sagrada Familia

Learning budget

Global team

25 days holidays

Thunes Out Days

Community days

Job summary

Thunes is seeking a Senior Software Engineer (Golang) to join our European Engineering team, based in Barcelona. You will help scale our global payments platform, delivering high‑throughput services and resilient APIs that connect thousands of partners.

You will work on architecture, deployment automation, and performance optimization, collaborating with product, security, and data teams in a fast-growing FinTech environment across continents.

Qualifications

• Proficient in Golang and scalable backend systems.
• Experience with event-driven design and message brokers.
• Strong API development and database experience.

Responsibilities

• Build highly available backend services exposed via APIs.
• Design and ship new products to internal and external stakeholders.
• Deliver testable, secure, and scalable software with proper docs.
• Follow agile practices: code reviews, sprints, pair programming.
• Evaluate new technologies and initiatives.

Skills

Golang

Event-Driven Architecture

Kafka

PostgreSQL

APIs

Education

Bachelor's degree in IT/Engineering/CS

Tools

AWS SNS/SQS

RabbitMQ

Docker

Job description

About Thunes

Thunes is the Smart Superhighway to move money around the world. Thunes' proprietary Direct Global Network allows Members to make payments in real-time in over 130 countries and more than 80 currencies.

Thunes' network connects directly to over 7 billion mobile wallets and bank accounts worldwide, as well as 15 billion cards via more than 320 different payment methods, such as GCash, M-Pesa, Airtel, MTN, Orange, JazzCash, Easypaisa, AliPay, WeChat Pay and many more.

Thunes' Direct Global Network differentiates itself through its worldwide reach, in-house SmartX Treasury System and Fortress Compliance Platform, ensuring Members of the network receive unrivaled speed, control, visibility, protection and cost efficiencies when making real-time payments, globally.

Members of Thunes' Direct Global Network include gig economy giants like Uber and Deliveroo, super-apps like Grab and WeChat, MTOs, fintechs, PSPs and banks.

Headquartered in Singapore, Thunes has offices in 14 locations, including Abidjan, Barcelona, Beijing, Dubai, Hong Kong, Johannesburg, London, Manila, Nairobi, Paris, Riyadh, San Francisco and Shanghai.

For more information, visit: https://www.thunes.com/

Context of the role

We're looking for a Senior Software Engineer (Golang) who is passionate about the FinTech industry, wants to work in a disruptive, fast-growing and exciting environment. As part of the Engineering team, based in Europe, this role will bring you great opportunities to work on various projects, technologies, with a diverse range of teams.

The Engineering team is responsible for developing our core business products and getting them to production in the most efficient and fastest way possible. We architect solutions, tools and platforms to solve business needs and tools around provisioning, configuration, CICD, monitoring, SLA, performance and uptime. Our team is passionate about the details and we work very closely with a wide range of stakeholders. Processing millions of transactions per month and interconnecting hundreds of partners from all around the world, Thunes is continuously growing its coverage and footprint in the industry.

Responsibilities

We're looking for a highly driven, self-motivated, technically excellent engineer who is truly excited about having a meaningful impact within the company and payments industry. In this role, you will combine a startup mindset with the scale of an industry leader. Working on our core platform and services you will help us to create the future of the company, by ensuring the scalability and performance of the platform, delivering new functionalities, automating and improving development processes.

• Work on highly available services, exposed mainly by APIs
• Participate in the design, implementation and shipping of new products to internal and external stakeholders
• Deliver high quality, testable, secure, readable, scalable and documented software
• Understand, apply and champion the principles of the agile methodology (code reviews, sprint planning, pair programming, daily stand-ups, etc..)
• Assist in the evaluation of new technologies and initiatives

What We Are Looking For

• Preferably a degree in Information Technology, Engineering Computer Science or related fields
• Software engineers that are motivated, curious and have an appetite for learning
• Proficient in Golang
• Experience with Event-Driven Architecture and message brokers (e.g., AWS SNS/SQS, Apache Kafka, RabbitMQ)
• Experience with relational databases (e.g, PostgreSQL, MySQL)
• Passionate about Agile Methodology and practices (TDD, CI, CD, etc..)
• Experience designing and developing web and API solutions
• Interest in the Fintech Industry and market innovations

Benefits

• Great compensation package, including performance & company bonus
• Private Health insurance for you and your family
• Life Insurance
• Work life balance (flexibility and hybrid working policy)
• Great offices close to Sagrada Familia
• Learning & Development budget
• Our team is global, you will work with 40 different nationalities spread across 5 continents
• 25 days of holidays 2 Thunes Out Days 2 Community days

We can offer you an environment where we have a culture of learning and feedback. You will be challenged to own your code - write, test, deploy it, multiple times per day. Our technology is used 24/7 and around the world, it needs to be reliable, secure and massively scalable. You will also need to interface with technology teams in different countries. Our environment and packages match the ambition of the company - building world class engineering teams.