Mid-Level Ruby Developer, Koinly
Crypto API Integrations, Contractor
$50-55k
More information about location
Tax management platform for cryptocurrency traders
Posted today
Tax management platform for cryptocurrency traders
21-100 employees
Posted today
$50-55k
More information about location
21-100 employees
Company mission
To provide a secure and compliant cryptocurrency tax solution, giving peace of mind and confidence in tax reporting.
Role
Who you are
- 3+ years of professional experience with Ruby
- Experience integrating third-party services and RESTful APIs
- Excellent troubleshooting and problem-solving skills
- You like digging through data until things make sense
- Able to make pragmatic decisions in complex, ambiguous situations
- Clear, concise written and verbal communication in English
- Eagerness to work with a high-standard engineering team, CI/CD, and testing
- Comfort with feedback loops and a high-ownership mindset
What the job involves
- As a Ruby software engineer in the Integrations team, you'll be the bridge between app development and customer support
- It's a maintenance-heavy, user-impactful, API-wrangling role
- You’ll troubleshoot weird bugs, tame chaotic data, and make things work where most would give up
- A great entry point into the crypto space for someone who’s curious but not yet deep in it
- An opportunity to grow fast. We give feedback, and we’re structured to help mid-level devs improve
- A high-impact position. Your work directly improves the experience for over 1.5M+ users worldwide
- Lower entry bar than senior roles, with equally high standards for quality and ownership
- Team size: 10 engineers in a 37-person company
- You’ll be part of the Integrations squad: the team responsible for keeping Koinly running smoothly across over 900+ crypto platforms
- That means a lot of APIs, edge cases, and data quirks
- Your work will form the invisible layer that makes crypto tax reporting feel effortless to our users
- At the core: Maintain and improve the systems that sync crypto data for 1.5M+ users worldwide
- Reproduce, troubleshoot, and resolve complex technical problems (under SLA)
- Develop new integrations and improve the quality of the existing ones
- Monitor and resolve application errors
- Add support for new data formats
- Partner with Customer Support when technical expertise is needed
- You may occasionally be part of an on-call rotation
- Your first month
- Your first few weeks at Koinly are all about mutual discovery
- You’ll receive hands-on tasks that help us understand your technical strengths and how you operate in our async-first, ownership-driven environment
- At the same time, you’ll get to explore whether our way of working challenges and supports you in the right ways
- We’re big on clarity, autonomy, and getting things done — and we hold our own product to the same standards
- We expect our users to get their taxes done in under 20 minutes — and we aim to build with that same focus and confidence
- A good benchmark
- Try Koinly yourself
- If the product doesn’t click for you quickly, building it won’t be easier
Application process
- An initial call with the talent team (30 mins)
- A take-home task (~3 hours)
- Technical interview with live-coding and architecture problems (90 mins)
- Final call with the founder (30 mins)
Our take
Trading cryptocurrencies has become a lucrative profession for many investors, but one that is difficult to remain compliant within. The nature of the assets leads to constant price fluctuations and trading of many cryptocurrencies spread across multiple wallets, and its decentralised nature makes this activity difficult to track and analyse for tax calculations.
Koinly provides a tax management platform for cryptocurrency traders, allowing users to import cryptocurrency transaction records directly from ledgers, and aggregate it all into a tax report. The platform also helps users to track their portfolios, ROI, and capital gains within a minimalist dashboard, helping them to identify how to reduce taxes for the next year.
Many different cryptocurrency platforms aim to help traders analyse markets and make smart investment decisions, but the complications of tax reporting for crypto remain untackled. Koinly has recognised this gap in the market, claiming that its platform helps reduce the amount of time and money it takes to produce a crypto earning tax report, whilst identifying tax issues and ultimately ensuring compliance.
Steph
Company Specialist at Welcome to the Jungle
Insights
-44% employee growth in 12 months
Company
Company benefits
- 💸 Workplace pension scheme
- 🌅 25 days holiday a year
- 💆 Power down week
- 👪 Parental leave
- 😷 Paid sick leave
- 💻 Choice of laptop and working equipment
- 🏢 CBD office, with hybrid and flexible work arrangements minimum 3 days in the office
- 🚀 Work within one of the most rapidly growing industries in the world
- 🎒 Perks, including Koinly swag
- ☕ Free drinks & snacks
- 🎉 Regular and fun team social events!
Company HQ
London, UK
Leadership
Robin Singh
(Founder)Professional Associate at the National Association of Tax Professionals since 2019.
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