API / Back-end Engineer in Fonoa


    Remote — Freelance

Programming | Senior

Apply now Requires applying in English
Fonoa last checked this job 4 days ago.

At Fonoa, we automate taxes for marketplaces, digital content platforms, ride-sharing, delivery, SaaS, and e-commerce globally.

If you want to launch a business today, there are plenty of products out there to help you get going - from Stripe for payments to Twilio for customer engagement.

How come figuring out taxes is so hard?

Enter Fonoa.

We help clients reduce the cost of operations and manual workload when selling internationally.

Our product suite enables users to automatically assign tax rates to each online transaction, create locally compliant receipts & invoices, and report them to tax authorities.

We are an API-first company and our product suite runs seamlessly with minimum manual work required from the user.

We are expanding our global presence and looking for many new team members to join us! Please have a look at our available roles and consider joining us!

Senior Backend Engineer

As a Senior API / Backend Engineer at Fonoa, your will own several private and public-facing microservices.

You will be expected and empowered to work well beyond features, improvements, and bugs.

You will work on the entire lifecycle of a product. You will have to understand the customer need, currently available solutions in the market, why are they suboptimal and how can we create a superior product.

You will have to think about how to solve a problem by optimizing for the best customer experience and navigating towards business goals.

You will work closely with your product counterpart on designing the product, defining the specs, working on the code, ensuring it's properly tested and deployed.

You will be given a lot of autonomy, trust, and independence to improve every aspect of our product.

We are solving one of the largest yet unsolved problems in global e-commerce and looking for developers with a hunger for a new challenge and drive to solve a ubiquitous problem for companies selling globally.

Our clients range from world-leading marketplaces, e-commerce, delivery to household-name mobility companies.

Qualifications and requirements

You are the right fit if you have

  • Full professional proficiency in English and Spanish and / or Portuguese, written and spoken
  • You have owned a product from an engineering point of view before
  • At least 5 years experience in software development, with at least 3 of them designing and working on high-scale environments.
  • Experience with node.js, Typescript, Java, or C#. If you meet other requirements but are proficient in a different language, that's completely fine. We look at languages as a tool - what's more important are your problem-solving skills.
  • Extensive experience with building modern web applications using microservices architecture principles
  • Experience with big-data processing and high volume queues
  • Experience in building and documenting REST APIs
  • Experience with the full development lifecycle, including understanding customers’ needs, architecture, design, coding, testing, and delivery
  • Hands-on experience with unit, integration, and functional testing
  • Worked in a dynamic start-up or scale-up environment

What to expect in the role

  • Owning end-to-end (from brainstorming and problem solving to deployment on the cloud) of your public or private set of microservices
  • Internalizing the customer pain and working through the entire product lifecycle (from ideation to coding) to deliver a better product for customers
  • Creating +100 of integrations with payment processors, ERPs, accounting tools, and e-commerce enablement tools for both data input and output
  • Collecting and consolidating large and disparate tax datasets for more than 100 countries globally
  • Designing and scaling best of breed API tax infrastructure for internet companies
  • Providing the best user experience to developers and finance teams
  • And many more


  • A very competitive compensation package
  • Ability to work from any place in the world
  • A budget to purchase any equipment you need to do your job properly or access to a co-working space
  • An annual, expenses paid global meetup of the Fonoa team somewhere fun in the world (post-Covid)
  • A place on a rocketship backed by best-in-class VCs and operators innovating in an overlooked and unsexy area and doing it profitably and sustainably
  • A community and culture of builders and problem solvers

Wellness program Fonoa offers or subsidies mental and/or physical health activities.
Fully remote You can work from anywhere in the world.
Flexible hours Flexible schedule and freedom for attending family needs or personal errands.
Company retreats Team-building activities outside the premises.
Computer provided Fonoa provides a computer for your work.
Education stipend Fonoa covers some educational expenses related to the position.
Fitness subsidies Fonoa offers stipends for sports or fitness programs.
Vacation over legal Fonoa gives you paid vacations over the legal minimum.

Remote work policy

Fully remote

Candidates can reside anywhere in the world.

About Fonoa

Apply Requires applying in English