Senior Backend Engineer (Golang/go)

Ogłoszenie numer: 6939630, from 2022-05-14


The Rain Instant Pay app provides early wage access for employees at mid to large-sized organizations to improve financial wellness and increase employee productivity.

With 63% of Americans living paycheck to paycheck, financial wellness tools are an important part of any employee benefits package. Rain works by giving advances on upcoming paychecks; it is not a loan and there is no interest. Employees pay a small fee for this service, which is healthier than payday loans.

Rain’s mission is to regrow financial freedom by giving people full control over their income and to put an end to predatory financial products, replacing them with on-demand pay.

Senior Backend Engineer (Golang/go)

Location: Warszawa


Job description

 Rain is a venture-backed fintech with a mission to kill predatory financial products like payday loans. Our first product gives employees instant access to their wages, which solves a major problem for real people (115 million American workers are living paycheck-to-paycheck). Rain is the fastest-growing startup in the category and was incubated with QED Capital, a top fintech venture fund.

Our team culture is rooted in a deep commitment to Shokunin, the Japanese philosophy of giving your very best for the general welfare of people. Other core values at Rain: radical transparency and zero ego.

We are looking for a Senior Software Engineer . This position is remote but we consider candidates from Poland, Portugal, Spain, UK, Germany. The candidate will be responsible for managing various areas of our backend platform, including API integrations with 3rd-party vendors and partners.

As a Senior Software Engineer with Rain, you will play a central role as we scale to 1M+ users. You will work with our US based product and engineering teams to implement quickly and contribute in all phases of the development lifecycle. Our ideal candidate is excited to tackle tough technical challenges and looking for opportunities to contribute to our strategic thinking.



  • Translate business requirements into technical solutions, recommend alternative technical and business approaches, and lead engineering efforts to meet aggressive timelines
  • Operational Excellence - monitoring & operation of production services including implementation of adequate resilience and high-availability models to support 24x7 operational availability
  • Manage backend API integrations with 3rd-party vendors and partners
  • Manage integration of user-facing elements developed by our front-end developers with server side logic
  • Build reusable code and libraries for future use
  • Optimize Rain application for maximum speed and scalability
  • Design and implementation of data storage solutions


  • Proficient knowledge of back-end programming languages, Go / Golang is a MUST. (at least 4 years of experience) 
  • Basic understanding of front-end technologies and platforms, especially React and React Native
  • Solid understanding of REST API design and development with experience building REST APIs
  • Experience with API security standards and implementation (OAuth,)
  • Good experience with API frameworks
  • Integration of multiple data sources and databases into one system
  • Management of hosting environment, including database administration and scaling an application to support load changes
  • Data migration, transformation, and scripting
  • Setup and administration of backups
  • Creating database schemas that represent and support business processes
  • Fluent in English

Note: Examples of past work will be required as part of the hiring process***

We offer

  • Work on a complex and interesting IT project
  • Comfortable office in the center of the city or a remote job
  • Competitive salary
  • Medical insurance
  • Bonuses
  • Flexible working hours
  • Partial compensation for English classes
  • Сorporate and teambuilding events
  • Opportunity for professional growth and career development
  • Pleasant atmosphere and a friendly team
Please add the following clause: I agree to the processing of my personal data for the needs necessary in the recruitment process.

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