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Certification Open Source Best Practice · Beginner

Verified · Updated June 2026

FINOS Financial Services Certified Open Source Developer (FSOSD) Coupon Code — 30% OFF (June 2026)

The FINOS Certified Open Source Developer exam is designed for developers contributing to open source projects while working in financial institutions internationally.

30% OFF
$175 $250 Save $75

Coupon code

GOLDEN30
Get this deal →

Apply code GOLDEN30 at checkout on tidd.ly. No need to click to reveal — the code is right here.

How to redeem the FSOSD coupon code

  1. 1 Copy the coupon code GOLDEN30 above.
  2. 2 Click “Get this deal” to open the official FINOS Financial Services Certified Open Source Developer (FSOSD) page on tidd.ly.
  3. 3 Add it to your cart and paste GOLDEN30 into the promo code field at checkout to apply the 30% OFF discount.

Looking for a FSOSD voucher code, promo code or discount? This is the same FINOS Financial Services Certified Open Source Developer (FSOSD) offer — one verified code that works on the certification exam, saving you $75.

FSOSD coupon — FAQ

Is there a coupon code for FINOS Financial Services Certified Open Source Developer (FSOSD)? +

Yes. Use code GOLDEN30 to get 30% OFF on FINOS Financial Services Certified Open Source Developer (FSOSD), bringing the price from $250 down to $175 (you save $75). Apply the code at checkout on the Linux Foundation training site.

How much does FSOSD cost with the discount? +

FINOS Financial Services Certified Open Source Developer (FSOSD) normally costs $250. With coupon GOLDEN30 (30% off) you pay about $175.

How do I redeem the FSOSD coupon code? +

Add FINOS Financial Services Certified Open Source Developer (FSOSD) to your cart on tidd.ly, then enter GOLDEN30 in the coupon/promo code field at checkout. The 30% discount is applied to the order total before payment.

Does the FSOSD discount code expire? +

Coupon codes can change over time. We verify and update the codes on this page regularly, so the code shown here reflects the latest working FINOS Financial Services Certified Open Source Developer (FSOSD) offer we have available.

Ready to save on FINOS Financial Services Certified Open Source Developer (FSOSD)?

Apply GOLDEN30 at the Linux Foundation →