r/fintechdev is a subreddit with 5k members. The most common kinds of discussions are solution requests and advice requests, and the community frequently discusses payment, looking, for, looking for, and fiserv.
Welcome to /r/fintechdev,
the community for engineers and everyone who builds fintech products. We discuss fintech system design, APIs, design patterns, platforms and programming languages, career in fintech
Popular Themes in r/fintechdev
#1
Solution Requests
: "I’m a CFP with no programming background or experience, and I’ve been building a retirement planning tool called Parallax. I’m looking for a technical review by an experienced web application developer or software engineer"
5 posts
#2
Advice Requests
: "I built an open-source Synthetic General Ledger Fuzzer to break accounting pipelines and catch reconciliation bugs (Looking for feedback)"
4 posts
#3
Ideas
: "I’m thinking about building something for stock research and investing discussions"
1 post
#4
Self-Promotion
: "I’m building GoalBay — a personal finance app with family sharing at its core"
1 post
Popular Topics in r/fintechdev
#1
Payment
3 posts
#2
Looking
2 posts
#3
For
2 posts
#4
Looking For
2 posts
#5
Fiserv
1 post
#6
Fintech
1 post
#7
Co Founder
1 post
#8
Looking For Project Partner
1 post
#9
Financial Planning Apps
1 post
Member Growth in r/fintechdev
Yearly
+3k members(181.5%)
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About
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Last updated: September 30, 2026