Open-source projects for senior systems engineers

This view ranks 1,276 projects for senior systems engineers. It weighs criticality 35%, governance 25%, rigor 20%, responsiveness 15% and accessibility 5%.

Ranked1276 Not ranked9724

Rated321929.3%Gated529948.2%Unrated248222.6%Hidden by this lens (1943)

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Rank	Repository	Score	Coverage	Tier	First reply (median)	No reply in 14 days	Quadrant	Δ rank	Audited stars

1	prometheus/prometheusGo	88.64	69% · Ceiling B	B (capped)	—	—	—	—	—
2	containerd/containerdGo	87.57	69% · Ceiling B	B (capped)	—	—	—	—	—
3	react/reactJavaScript	87.36	61% · Ceiling B	B (capped)	—	—	—	—	—
4	ray-project/rayPython	83.78	69% · Ceiling B	B (capped)	—	—	—	—	—
5	sympy/sympyPython	83.65	69% · Ceiling B	B (capped)	—	—	—	—	—
6	vllm-project/vllmPython	83.52	61% · Ceiling B	B (capped)	—	—	—	—	—
7	scikit-learn/scikit-learnPython	83.35	69% · Ceiling B	B (capped)	—	—	—	—	—
8	argoproj/argo-cdGo	82.62	69% · Ceiling B	B (capped)	—	—	—	—	—
9	huggingface/transformersPython	82.61	69% · Ceiling B	B (capped)	—	—	—	—	—
10	jaegertracing/jaegerGo	82.18	69% · Ceiling B	B (capped)	—	—	—	—	—
11	ethereum/go-ethereumGo	81.95	69% · Ceiling B	B (capped)	—	—	—	—	—
12	ggml-org/llama.cppC and C++	81.93	61% · Ceiling B	B (capped)	—	—	—	—	—
13	mlflow/mlflowPython	81.78	69% · Ceiling B	B (capped)	—	—	—	—	—
14	envoyproxy/envoyC and C++	81.19	69% · Ceiling B	B (capped)	—	—	—	—	—
15	onnx/onnxPython	81.04	69% · Ceiling B	B (capped)	—	—	—	—	—
16	apache/datafusionRust	80.95	61% · Ceiling B	B (capped)	—	—	—	—	—
17	external-secrets/external-secretsGo	80.83	69% · Ceiling B	B (capped)	—	—	—	—	—
18	supabase/supabaseJavaScript	79.90	69% · Ceiling B	B (capped)	—	—	—	—	—
19	matplotlib/matplotlibPython	79.72	69% · Ceiling B	B (capped)	—	—	—	—	—
20	vitejs/viteJavaScript	79.68	69% · Ceiling B	B (capped)	—	—	—	—	—
21	rust-lang/libcRust	79.45	95% · Ceiling A	A (capped)	3.3 hours	11%	Sweet Spot	▼18	—
22	kornia/korniaPython	78.89	69% · Ceiling B	B (capped)	—	—	—	—	—
23	eslint/eslintJavaScript	78.82	95% · Ceiling A	A (capped)	5.7 hours	0%	Sweet Spot	▼15	—
24	apache/arrowC and C++	78.72	69% · Ceiling B	B (capped)	—	—	—	—	—
25	deepspeedai/DeepSpeedPython	78.69	61% · Ceiling B	B (capped)	—	—	—	—	—
26	django/djangoPython	78.45	69% · Ceiling B	B (capped)	—	—	—	—	—
27	crosspoint-reader/crosspoint-readerC and C++	78.43	61% · Ceiling B	B (capped)	—	—	—	—	—
28	PrefectHQ/prefectPython	77.91	69% · Ceiling B	B (capped)	—	—	—	—	—
29	servo/rust-smallvecRust	77.61	96% · Full	A	0.6 hours	1%	Sweet Spot	▼28	—
30	cloudflare/workers-sdkJavaScript	77.53	61% · Ceiling B	B (capped)	—	—	—	—	—
31	open-telemetry/opentelemetry-collectorGo	77.50	69% · Ceiling B	B (capped)	—	—	—	—	—
32	typescript-eslint/typescript-eslintJavaScript	77.31	69% · Ceiling B	B (capped)	—	—	—	—	—
33	vercel/next.jsJavaScript	77.25	69% · Ceiling B	B (capped)	—	—	—	—	—
34	lance-format/lanceRust	77.11	61% · Ceiling B	B (capped)	—	—	—	—	—
35	FreeCAD/FreeCADC and C++	76.75	69% · Ceiling B	B (capped)	—	—	—	—	—
36	huggingface/diffusersPython	76.54	69% · Ceiling B	B (capped)	—	—	—	—	—
37	langchain-ai/langchainjsJavaScript	76.31	61% · Ceiling B	B (capped)	—	—	—	—	—
38	prometheus/client_golangGo	76.17	100% · Full	A	25.9 hours	32%	Sweet Spot	▼34	—
39	tracel-ai/burnRust	76.12	61% · Ceiling B	B (capped)	—	—	—	—	—
40	maplibre/maplibre-gl-jsJavaScript	76.05	69% · Ceiling B	B (capped)	—	—	—	—	—
41=	open-telemetry/opentelemetry-goGo	76.05	69% · Ceiling B	B (capped)	—	—	—	—	—
42	ansible/ansiblePython	76.02	68% · Ceiling B	B (capped)	—	—	—	—	—
43	scipy/scipyPython	75.98	69% · Ceiling B	B (capped)	—	—	—	—	—
44	huggingface/peftPython	75.93	61% · Ceiling B	B (capped)	—	—	—	—	—
45	withastro/astroJavaScript	75.86	61% · Ceiling B	B (capped)	—	—	—	—	—
46	kyverno/kyvernoGo	75.85	69% · Ceiling B	B (capped)	—	—	—	—	—
47	zephyrproject-rtos/zephyrC and C++	75.77	69% · Ceiling B	B (capped)	—	—	—	—	—
48	apache/opendalRust	75.71	61% · Ceiling B	B (capped)	—	—	—	—	—
49	vitessio/vitessGo	75.41	69% · Ceiling B	B (capped)	—	—	—	—	—
50	shadps4-emu/shadPS4C and C++	75.25	61% · Ceiling B	B (capped)	—	—	—	—	—

#169% · Ceiling B

prometheus/prometheusGo

Score 88.64 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#269% · Ceiling B

containerd/containerdGo

Score 87.57 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#361% · Ceiling B

react/reactJavaScript

Score 87.36 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#469% · Ceiling B

ray-project/rayPython

Score 83.78 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#569% · Ceiling B

sympy/sympyPython

Score 83.65 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#661% · Ceiling B

vllm-project/vllmPython

Score 83.52 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#769% · Ceiling B

scikit-learn/scikit-learnPython

Score 83.35 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#869% · Ceiling B

argoproj/argo-cdGo

Score 82.62 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#969% · Ceiling B

huggingface/transformersPython

Score 82.61 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#1069% · Ceiling B

jaegertracing/jaegerGo

Score 82.18 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#1169% · Ceiling B

ethereum/go-ethereumGo

Score 81.95 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#1261% · Ceiling B

ggml-org/llama.cppC and C++

Score 81.93 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#1369% · Ceiling B

mlflow/mlflowPython

Score 81.78 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#1469% · Ceiling B

envoyproxy/envoyC and C++

Score 81.19 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#1569% · Ceiling B

onnx/onnxPython

Score 81.04 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#1661% · Ceiling B

apache/datafusionRust

Score 80.95 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#1769% · Ceiling B

external-secrets/external-secretsGo

Score 80.83 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#1869% · Ceiling B

supabase/supabaseJavaScript

Score 79.90 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#1969% · Ceiling B

matplotlib/matplotlibPython

Score 79.72 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#2069% · Ceiling B

vitejs/viteJavaScript

Score 79.68 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#2195% · Ceiling A

rust-lang/libcRust

Score 79.45 · A (capped)

First reply (median) 3.3 hours · No reply in 14 days 11%

Sweet Spot ▼18

#2269% · Ceiling B

kornia/korniaPython

Score 78.89 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#2395% · Ceiling A

eslint/eslintJavaScript

Score 78.82 · A (capped)

First reply (median) 5.7 hours · No reply in 14 days 0%

Sweet Spot ▼15

#2469% · Ceiling B

apache/arrowC and C++

Score 78.72 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#2561% · Ceiling B

deepspeedai/DeepSpeedPython

Score 78.69 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#2669% · Ceiling B

django/djangoPython

Score 78.45 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#2761% · Ceiling B

crosspoint-reader/crosspoint-readerC and C++

Score 78.43 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#2869% · Ceiling B

PrefectHQ/prefectPython

Score 77.91 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#2996% · Full

servo/rust-smallvecRust

Score 77.61 · A

First reply (median) 0.6 hours · No reply in 14 days 1%

Sweet Spot ▼28

#3061% · Ceiling B

cloudflare/workers-sdkJavaScript

Score 77.53 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#3169% · Ceiling B

open-telemetry/opentelemetry-collectorGo

Score 77.50 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#3269% · Ceiling B

typescript-eslint/typescript-eslintJavaScript

Score 77.31 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#3369% · Ceiling B

vercel/next.jsJavaScript

Score 77.25 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#3461% · Ceiling B

lance-format/lanceRust

Score 77.11 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#3569% · Ceiling B

FreeCAD/FreeCADC and C++

Score 76.75 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#3669% · Ceiling B

huggingface/diffusersPython

Score 76.54 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#3761% · Ceiling B

langchain-ai/langchainjsJavaScript

Score 76.31 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#38100% · Full

prometheus/client_golangGo

Score 76.17 · A

First reply (median) 25.9 hours · No reply in 14 days 32%

Sweet Spot ▼34

#3961% · Ceiling B

tracel-ai/burnRust

Score 76.12 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#4069% · Ceiling B

maplibre/maplibre-gl-jsJavaScript

Score 76.05 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#41=69% · Ceiling B

open-telemetry/opentelemetry-goGo

Score 76.05 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#4268% · Ceiling B

ansible/ansiblePython

Score 76.02 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#4369% · Ceiling B

scipy/scipyPython

Score 75.98 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#4461% · Ceiling B

huggingface/peftPython

Score 75.93 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#4561% · Ceiling B

withastro/astroJavaScript

Score 75.86 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#4669% · Ceiling B

kyverno/kyvernoGo

Score 75.85 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#4769% · Ceiling B

zephyrproject-rtos/zephyrC and C++

Score 75.77 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#4861% · Ceiling B

apache/opendalRust

Score 75.71 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#4969% · Ceiling B

vitessio/vitessGo

Score 75.41 · B (capped)

First reply (median) — · No reply in 14 days —

— —

#5061% · Ceiling B

shadps4-emu/shadPS4C and C++

Score 75.25 · B (capped)

First reply (median) — · No reply in 14 days —

— —