Apply directly to jobs in best companies
Search Companies / Jobs
 

Research Engineer (Safety and Alignment), Post-Training at
Menlo Park, United States


Job Descrption

Joining us as a Safety and Alignment Research Engineer on the Post-Training team, you’ll be building tools to align our models and making sure they meet the highest standards of safety in the real world.

As increasingly powerful AI models get deployed, building tools to align and steer them becomes increasingly important. Your work will directly contribute to our groundbreaking advancements in AI, helping shape an era where technology is not just a tool, but a companion in our daily lives. At Character.AI, your talent, creativity, and expertise will not just be valued—they will be the catalyst for change in an AI-driven future.

About the role

The Post-Training team is responsible for developing our powerful pretrained language models into intelligent, engaging, and aligned products.

As a Post-Training Researcher focused on Safety and Alignment, you will work across teams and our technical stack to improve our model performance. You will get to shape the conversational experience enjoyed by millions of users per day. This will involve close partnership with our Policy, Research, and Data teams and deploying your changes directly to the product.

Example projects:

  • Develop and apply preference alignment algorithms to guide model generations.

  • Train classifiers to identify model failure modes and adversarial usage.

  • Work with annotators and red-teamers to produce useful datasets for alignment.

  • Invent new techniques for guiding model behavior.

Job Requirements

  • Write clear and clean production-facing and training code

  • Experience working with GPUs (training, serving, debugging)

  • Experience with data pipelines and data infrastructure

  • Strong understanding of modern machine learning techniques (reinforcement learning, transformers, etc)

  • Track-record of exceptional research or creative applied ML projects

Nice to Have

  • Experience developing safety systems for UGC/consumer content platforms

  • Experience working on LLM alignment 

  • Publications in relevant academic journals or conferences in the fields of machine learning or recommendation systems

Ready to empower the world with AGI? 🚀

Founded in 2021 by AI pioneers Noam Shazeer and Daniel De Freitas, Character is a full-stack AI powerhouse and ranks among the most utilized AI research platforms globally. Our innovative approach allows users to customize their experience with personalized AI 'Characters.'

In just two years, we achieved unicorn status and were named Google Play's AI App of the Year – a testament to our groundbreaking technology and vision.

Noam co-invented core LLM tech and was recently honored as one of TIME's 100 Most Influential in AI. Daniel created LaMDA, the breakthrough conversational AI now powering Google's Bard.

We encourage you to apply even if you don’t meet all qualifications. Underrepresented individuals often experience imposter syndrome—don’t underestimate yourself.


Our commitment to diversity:
Character values diversity and welcomes applicants of all backgrounds. We are an equal opportunity employer and firmly uphold a non-discrimination policy based on race, religion, national origin, gender, sexual orientation, age, veteran status, or disability. Your unique perspectives are vital to us.


Complete form below to directly Send your CV / Linkedin Profile to Research Engineer (Safety and Alignment), Post-Training at .
@
You will receive all responses from employer on this email
Example: Application for the post of 'Accountant'
Example: Introduce your self and give purpose of your application
*All fields are mandatory.

3 jobs found
Staff Data Engineer - Analytics at
Menlo Park, United States
Research Engineer (Safety and Alignment), Post-Training at
Menlo Park, United States
Engineering Manager, Client Team at
Menlo Park, United States
1
4,962 Other Companies Worldwide
American Hospital Dubai  
Hospitals and Health Care
Dubai, United Arab Emirates
75 hiring managers available
1,001 employees work here
Marriott International  
Hospitality
, United Arab Emirates
2441 hiring managers available
10,001 employees work here
IHG  
Hospitality
, United Arab Emirates
380 hiring managers available
10,001 employees work here
NMC Healthcare  
Hospitals and Health Care
Dubai, United Arab Emirates
242 hiring managers available
10,001 employees work here
Aster DM Healthcare  
Hospitals and Health Care
, United Arab Emirates
25 hiring managers available
10,001 employees work here
Emaar  
Real Estate
, United Arab Emirates
7 hiring managers available
5,001 employees work here
Jumeirah Group  
Hospitality
, United Arab Emirates
272 hiring managers available
10,001 employees work here
Samsung Electronics  
Computers and Electronics Manufacturing
Dubai, United Arab Emirates
95 hiring managers available
10,001 employees work here
Halliburton  
Oil and Gas
Dubai, United Arab Emirates
97 hiring managers available
10,001 employees work here
Mediclinic  
Hospitals and Health Care
, United Arab Emirates
215 hiring managers available
10,001 employees work here
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497