Proximity Works

We are looking for a Senior Backend Engineer to build and operate the core AI/ML-backed systems that power large-scale, consumer-facing products. You will work on production-grade AI runtimes, retrieval systems, and ML-adjacent backend infrastructure, making pragmatic tradeoffs across quality, latency, reliability, and cost.

This role is not an entry point into AI/ML. You are expected to already have hands-on experience shipping ML-backed backend systems in production.

At Proximity, you won’t just build APIs - you’ll own critical backend systems end-to-end, collaborate closely with Applied ML and Product teams, and help define the foundations that power intelligent experiences at scale.

Responsibilities -

• Own and deliver end-to-end backend systems for AI product runtime, including orchestration, request lifecycle management, state/session handling, and policy enforcement.
• Design and implement retrieval and memory primitives end-to-end — document ingestion, chunking strategies, embeddings generation, indexing, vector/hybrid search, re-ranking, caching, freshness, and deletion semantics.
• Productionize ML workflows and interfaces, including feature and metadata services, online/offline parity, model integration contracts, and evaluation instrumentation.
• Drive performance, reliability, and cost optimization, owning P50/P95 latency, throughput, cache hit rates, token and inference costs, and infrastructure efficiency.
• Build observability by default, including structured logs, metrics, distributed tracing, guardrail signals, failure taxonomies, and reliable fallback paths.
• Collaborate closely with Applied ML teams on model routing, prompt and tool schemas, evaluation datasets, and release safety gates.
• Write clean, testable, and maintainable backend code, contributing to design reviews, code reviews, and operational best practices.
• Take systems from design → build → deploy → operate, including on-call ownership and incident response.
• Continuously identify bottlenecks and failure modes in AI-backed systems and proactively improve system robustness.

Requirements

• Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• 6–10 years of experience building backend systems in production, with 2–3+ years working on ML/AI-backed products such as search, recommendations, ranking, RAG pipelines, or AI assistants.
• Strong practical understanding of ML system fundamentals, including embeddings, vector similarity, reranking, retrieval quality, and evaluation metrics (precision/recall, nDCG, MRR).
• Proven experience implementing or operating RAG pipelines, covering ingestion, chunking, indexing, query understanding, hybrid retrieval, and rerankers.
• Solid distributed systems fundamentals, including API design, idempotency, concurrency, retries, circuit breakers, rate limiting, and multi-tenant reliability.
• Experience with common ML/AI platform components, such as feature stores, metadata systems, streaming or batch pipelines, offline evaluation jobs, and A/B measurement hooks.
• Strong proficiency in backend programming languages and frameworks (e.g., Go, Java, Python, or similar) and API development.
• Ability to work independently, take ownership of complex systems, and collaborate effectively with cross-functional teams.
• Strong problem-solving, communication, and system-design skills.

Desired Skills -

• Experience with agentic runtimes, including tool-calling or function-calling patterns, structured outputs, and production guardrails.
• Hands-on exposure to vector and hybrid retrieval stacks such as FAISS, Milvus, Pinecone, or Elasticsearch.
• Experience running systems on Kubernetes, with strong knowledge of observability stacks like OpenTelemetry, Prometheus, Grafana, and distributed tracing.
• Familiarity with privacy, security, and data governance considerations for user and model data.

Benefits

• Best in class compensation: We hire only the best, and we pay accordingly.
• Proximity Talks: Meet engineers, designers, and product leaders — and learn from experts across domains.

Keep on learning with a world-class team: Work on real, production AI systems at scale, challenge yourself daily, and grow alongside some of the best minds in the industry.

We are looking for a Data Engineer to help build and scale the data pipelines and core datasets that power analytics, AI model evaluation, safety systems, and business decision-making across Bharat AI’s agentic AI platform.

This role sits at the heart of how data flows through the organization. You will work closely with Product, Data Science, Infrastructure, Marketing, Finance, and AI/Research teams to ensure data is reliable, accessible, and production-ready as the platform scales rapidly.

At Proximity, you won’t just move data — your work will directly influence how AI systems are trained, evaluated, monitored, and improved.

Responsibilities -

• Design, build, and manage scalable data pipelines, ensuring user event data is reliably ingested into the data warehouse.
• Develop and maintain canonical datasets to track key product metrics such as user growth, engagement, retention, and revenue.
• Collaborate with Infrastructure, Data Science, Product, Marketing, Finance, and Research teams to understand data needs and deliver effective solutions.
• Implement robust, fault-tolerant systems for data ingestion, transformation, and processing.
• Participate actively in data architecture and engineering decisions, contributing best practices and long-term scalability thinking.
• Ensure data security, integrity, and compliance in line with company policies and industry standards.
• Monitor pipeline health, troubleshoot failures, and continuously improve reliability and performance.

Requirements

• 3-5 years of professional experience working as a Data Engineer or in a similar role.
• Proficiency in at least one data engineering programming language such as Python, Scala, or Java.
• Experience with distributed data processing frameworks and technologies such as Hadoop, Flink, and distributed storage systems (e.g., HDFS).
• Strong expertise with ETL orchestration tools, such as Apache Airflow.
• Solid understanding of Apache Spark, with the ability to write, debug, and optimize Spark jobs.
• Experience designing and maintaining data pipelines for analytics, reporting, or ML use cases.
• Strong problem-solving skills and the ability to work across teams with varied data requirements.

Desired Skills -

• Hands-on experience working with Databricks in production environments.
• Familiarity with the GCP data stack, including Pub/Sub, Dataflow, BigQuery, and Google Cloud Storage (GCS).
• Exposure to data quality frameworks, data validation, or schema management tools.
• Understanding of analytics use cases, experimentation, or ML data workflows.

Benefits

• Best in class compensation: We hire only the best, and we pay accordingly.
• Proximity Talks: Learn from experienced engineers, data scientists, and product leaders.
• High-impact work: Build data systems that directly power AI models and business decisions.
• Continuous learning: Work with a strong, collaborative team and grow your data engineering skills every day.

Description

We are looking for a Senior React Native Engineer to lead the architecture and delivery of high-quality, performant mobile applications. You will be responsible for defining technical foundations, enforcing engineering standards, and ensuring the mobile stack scales reliably as the product and team grow.

This role requires deep expertise in React Native internals, performance optimization, and mobile platform fundamentals, along with strong ownership and mentorship capabilities.

At Proximity, you won’t just build screens - you’ll shape the mobile architecture, set engineering standards, and mentor teams building products used at meaningful scale.

Responsibilities -

• Define and own application architecture, including navigation, state management, data flow, module boundaries, and error handling strategies.
• Establish and enforce engineering standards, including TypeScript usage, linting, formatting, testing practices, and commit conventions.
• Own the native module strategy, including Bridges, TurboModules, and JSI, while minimizing native code where possible.
• Set, monitor, and enforce performance budgets, covering TTI, bundle size, memory usage, and UI jank; conduct regular profiling and optimization.
• Design and operate CI/CD pipelines for mobile apps, including code signing, build flavors, and over-the-air updates using tools like CodePush.
• Establish strong observability practices, including crash reporting, structured logging, analytics, feature flags, and A/B experimentation.
• Lead architecture design reviews and RFCs, providing technical direction and long-term scalability guidance.
• Mentor engineers, conduct code reviews, and drive knowledge-sharing across the mobile engineering team.
• Collaborate closely with product, design, backend, and QA teams to deliver high-quality mobile experiences.

Requirements

• 5–6 years of professional experience in mobile application development, with strong expertise in React Native.
• Deep understanding of React Native architecture, rendering pipeline, and performance characteristics.
• Strong proficiency in TypeScript, modern JavaScript, and React fundamentals.
• Hands-on experience with state management solutions, navigation libraries, and modular application design.
• Proven experience working with native modules, including Bridges, TurboModules, and JSI.
• Strong understanding of mobile performance optimization, profiling tools, and debugging techniques on iOS and Android.
• Experience setting up and maintaining mobile CI/CD pipelines, including build automation and release workflows.
• Solid understanding of app distribution, code signing, build variants, and OTA update mechanisms.
• Ability to take ownership of features and systems from design through production.
• Strong communication skills and experience working in cross-functional teams.

Desired Skills -

• Experience with CodePush or similar OTA update solutions.
• Familiarity with mobile analytics, experimentation frameworks, and feature flag systems.
• Exposure to monorepo setups and shared codebases across web and mobile.
• Experience contributing to or maintaining internal mobile libraries or design systems.
• Understanding of Agile development methodologies and iterative delivery.

Benefits

• Best in class compensation: We hire only the best, and we pay accordingly.
• Proximity Talks: Learn from experienced engineers, designers, and product leaders across the organization.
• Work with a world-class team: Build scalable mobile products, push technical boundaries, and learn something new every day.

About us -

We are Proximity — a global team of coders, designers, product managers, geeks, and experts. We solve complex problems and build cutting-edge technology at scale.

Our team of Proxonauts is growing quickly, which means your impact on the company’s success will be significant. You’ll work with experienced leaders who have built and led high-performing tech, product, and design teams.

Here’s a quick guide to getting to know us better:

• Watch our CEO, Hardik Jagda, tell you all about Proximity.
• Read about Proximity’s values and meet some of our Proxonauts.
• Explore our website, blog, and design wing — Studio Proximity.
• Get behind the scenes with us on Instagram — follow @ProxWrks and @H.Jagda.

We’re seeking a highly skilled, execution-focused Data Scientist with 4–10 years of experience to join our team. This role demands hands-on expertise in fine-tuning and deploying generative AI models across image, video, and audio domains — with a special focus on lip-sync, character consistency, and automated quality evaluation frameworks. You will be expected to run rapid experiments, test architectural variations, and deliver working model iterations quickly in a high-velocity R&D environment.

Responsibilities

• Run end-to-end fine-tuning experiments on state-of-the-art models (Flux family, LoRA, diffusion-based architectures, context-based composition).
• Develop and optimize generative AI models for audio generation and lip-sync, ensuring high fidelity and natural delivery.
• Extend current language models to support regional Indian languages beyond US/UK English for audio and content generation.
• Enable emotional delivery in generated audio (shouting, crying, whispering) to enhance realism.
• Integrate and synchronize background scores seamlessly with generated video content.
• Work towards achieving video quality standards comparable to Veo3/Sora.
• Ensure consistency in scenes and character generation across multiple outputs.
• Design and implement an automated objective evaluation frameworks to replace subjective human review — for cover images, video frames, and audio clips. Implement scoring systems that standardize quality checks before editorial approval.
• Run comparative tests across multiple model architectures to evaluate trade-offs in quality, speed, and efficiency.
• Drive initiatives independently, showcasing high agency and accountability. Utilize strong first-principle thinking to tackle complex challenges.
• Apply a research-first approach with rapid experimentation in the fast-evolving Generative AI space.

Requirements

• 4-10 years of experience in Data Science, with a strong focus on Generative AI.
• Familiarity with state-of-the-art models in generative AI (e.g., Flux, diffusion models, GANs).
• Proven expertise in developing and deploying models for audio and video generation.
• Demonstrated experience with natural language processing (NLP), especially for regional language adaptation.
• Experience with model fine-tuning and optimization techniques.
• Hands-on exposure to ML deployment pipelines (FastAPI or equivalent).
• Strong programming skills in Python and relevant deep learning frameworks (e.g., TensorFlow, PyTorch).
• Experience in designing and implementing automated evaluation metrics for generative content.
• A portfolio or demonstrable experience in projects related to content generation, lip-sync, or emotional AI is a plus.
• Exceptional problem-solving skills and a proactive approach to research and experimentation.

Benefits

• Best in class salary: We hire only the best, and we pay accordingly.
• Proximity Talks: Meet other designers, engineers, and product geeks — and learn from experts in the field.
• Keep on learning with a world-class team: Work with the best in the field, challenge yourself constantly, and learn something new every day.

About us

Proximity is the trusted technology, design, and consulting partner for some of the biggest Sports, Media, and Entertainment companies in the world! We’re headquartered in San Francisco and have offices in Palo Alto, Dubai, Mumbai, and Bangalore. Since 2019, Proximity has created and grown high-impact, scalable products used by 370 million daily users, with a total net worth of $45.7 billion among our client companies.

Today, we are a global team of coders, designers, product managers, geeks, and experts. We solve complex problems and build cutting-edge tech, at scale. Our team of Proxonauts is growing quickly, which means your impact on the company’s success will be huge. You’ll have the chance to work with experienced leaders who have built and led multiple tech, product, and design teams.

Proximity is fully distributed team of developers, designers, product nerds and geeks building cutting edge tech at the intersection of growth and speed.

We're currently looking for a creative and strategic Social Media Manager to join our growing team. You need to have a talent for telling stories through copy, images, and video, and a deep understanding of how to build and maintain an identity online. As the first hire in our Marketing/Social Media department, you will need to straddle multiple roles, be proactive, and have the ability to work cross-functionally while managing various projects.

• Staying up to date with the latest social media best practices and technologies.
• Creating quick content for social media, as well as more infrequent (but important) long form content for our blogs/newsletters.
• Identifying all the key platforms our brand needs to be active on, and then creating a plan to make it happen.
• Planning/ writing/shooting/scheduling and optimizing daily posts across multiple social platforms. Remember that we are a remote team with few opportunities to meet in-person, conduct photoshoots, etc. You need to be able to create content that humanizes the team regardless of this challenge.
• Maintaining and communicating a consistent brand online. You need to understand who we are and ensure that everything we put out aligns with our identity. You will create content with an elevated aesthetic that is in-line with our brand, and write clear, engaging copy.
• Engaging our audience online in real-time conversation, and identifying more opportunities to do so.
• Delivering data informed performance reports that measure both post level performance trends and broad reach and business impact.
• Working closely with the design, product, and tech teams to create relevant content.
• Designing our growth and awareness strategy with remarkable social campaigns
• Growing the social media and marketing team as needed

• Proven work experience in social media and community management.
• Excellent written communication skills. You can write fun, short captions, as well as clear long form content.
• A great eye for design. Even if you're not a designer, you have an intuitive understanding of what looks good and what does not.
• Basic graphic design and photo editing skills. We have a design team that will provide you with templates and basic brand guidelines, but in general, you will be overseeing and executing all social media content with the support of a visual designer.
• Good judgment and impeccable taste. You have an intuitive understanding of what's cool and what's not. You speak fluent internet, avoid corporate brand speak, and are able to recognize and engage with trends early. You are casual without being frivolous, and never, ever cringey.
• Ideas and opinions about how we can build our online presence, and can offer constructive criticism when you disagree with how things are being done.
• The ability to work independently, be proactive, and thrive in a fast paced environment.

• Illustration or motion/video skills
• Prior experience managing paid marketing campaigns.

• 100% Remote: Work from anywhere you please
• Flexible Timings: Set your own hours, and create a productive schedule that works for you.
• Best in class salary: We hire only the best, and we pay accordingly.
• Keep learning with a world class team: Work with the best in the field, challenge yourself constantly, and learn something new everyday.

Proximity is a fully distributed team of developers, designers, product nerds, and geeks building cutting-edge tech at the intersection of growth and speed.

We are looking for a Senior UI & UX Designer capable of handling product design projects at a high level. You will work closely with both client and in-house product/design/dev teams on mid-to-long term projects. The ideal candidate should be comfortable with all aspects of UI & UX design, have excellent product thinking and problem-solving abilities, good written and verbal communication skills, and a keen aesthetic sense.

• Developing and conceptualizing a comprehensive UI/UX design strategy for the projects you're assigned to.
• Producing high-quality design solutions through wireframes, visual and graphic designs, flow diagrams, storyboards, site maps, and prototypes.
• Creating a distinctive UI language based on visual identity guidelines of the brands you're working with.
• Creating design systems for mobile and web products, along with visual design systems in the form of illustrated/photography-based graphics.
• Testing and evaluating designs and flows using various testing tools.
• Looking at user data and identifying issues and opportunities for improvement.
• Collaborating with the development team to ensure proper implementation of your designs.

• A portfolio of professional UI and UX design work for both web and mobile platforms.
• A thorough understanding of all stages of UI and UX design, with the ability to execute a project from start to finish.
• A basic understanding of various data and analytics tools like Google Analytics, MixPanel, Maze etc.
• Mastery over Figma, Sketch, Photoshop, and Illustrator, and some familiarity with basic motion graphics (After Effects).
• A good understanding of web and mobile technologies. You know how HTML, CSS, JS, iOS, and Android systems work, even if you can't code.
• The ability to be a team player, but you're comfortable working independently too.
• Excellent written and verbal communication skills.
• Good multi-tasking and time-management skills, with the ability to prioritize tasks strategically.
• The ability to learn and pick up new software, plugins, or technologies easily and quickly.
• A keen eye for design standards and quality.
• A strong work ethic, high levels of self-motivation, and a willingness to over-communicate about work in order to make a remote environment more productive.
• The ability to work and collaborate remotely.

• Illustration/art skills
• 3D modeling skills
• Animation/advanced motion graphics skills
• UX Writing or general writing skills
• Brand design skills
• Experience using any other tools like Webflow, Airtable, Zapier, Mailchimp, etc.

• 100% Remote: Work from anywhere you please, as long as you have access to fast internet and a comfortable, distraction-free workspace.
• Flexible Timings: Set your own hours, and create a productive schedule that works for you.
• Best in class salary: We hire only the best, and we pay accordingly.
• Proximity Talks: Meet other designers, engineers, and product geeks — and learn from experts in the field.
• Keep learning with a world-class team: Work with the best in the field, challenge yourself constantly, and learn something new every day.

• Write clean, high-quality, high-performance and maintainable code
• Solve complex technical problems
• Perform an objective analysis of the problem statement and come up with an unbiased technical solution before writing a single line of code
• Coordinate cross-functionally to ensure the project meets business objectives and compliance standards
• Participate in and drive code reviews

• Excellent attention to detail.
• Outstanding written and verbal communication skills.
• Demonstrated expertise in building production-grade and high-performance applications.
• Must be a self-starter who can work well with minimal-to-no guidance in a fluid environment.
• Must be excited by challenges surrounding the development of highly scalable & distributed systems.
• Agility and ability to adapt quickly to changing requirements and scope and priorities.
• Object-oriented software development experience.
• Experience building Android applications in Java/Kotlin using Android SDK.
• Strong focus on high-quality mobile UI experiences.
• Experience building maintainable and testable code bases, including API design and unit testing techniques
• Experience with multithreading programming and mobile memory management.
• Experience with open source libraries like Retrofit, RxJava, Dagger 2, Lottie.

• Experience in Javascript/React JS/Flutter is a plus.
• Bonus points for open-source contributions, side-projects, blog posts, and YT tech videos.

• BS in Computer Science (or related field)
• 4-5 years of relevant work experience