{"id":2764670,"url":"https://alion.io/job/juspay-software-development-engineer-backend-2","title":"Software Development Engineer Backend","company":{"id":59416,"name":"Juspay","domain":"juspay.io","url":"https://alion.io/company/juspay","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Career site","truth_index":null},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"internship","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Mumbai, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Digital Twin","optional":false},{"name":"Knowledge Graph","optional":false},{"name":"Kubernetes","optional":false},{"name":"Linux","optional":false},{"name":"Multi-Agent Systems","optional":false},{"name":"OpenStack","optional":false},{"name":"Rust","optional":false},{"name":"Tokenization","optional":false},{"name":"WhatsApp","optional":false}],"status":"live","first_seen_at":"2026-10-17T03:35:55Z","employer_posted_date":"2026-10-17","last_verified_at":"2026-10-18T00:06:04Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"About Juspay\nJuspay is a leading global payments technology company, powering superior conversion rates, scalable and cost-effective infrastructure, and seamless customer experiences at scale for 500+ top global enterprises and banks. Founded in 2012, Juspay processes over 350M+ of India’s daily digital transactions, exceeding an annualized TPV of $1 trillion with 99.999% availability. Headquartered in Bangalore, India, Juspay’s global network of 1500+ payment experts operates across San Francisco, Dublin, São Paulo, and Singapore.\nJuspay offers a modular, interoperable payment suite for merchants, banks and payment networks, covering open-source payment orchestration, authentication, offer management, subscription, tokenization, fraud & risk management, global payouts, reconciliation, and analytics. For banks, Juspay delivers real-time payment infrastructure (UPI stacks) and end-to-end white-label merchants acquiring solutions and payment gateways. Our marquee partners include Google Pay, Amazon Pay, Flipkart, IRCTC, Navi, Swiggy, WhatsApp Pay, Mastercard, Visa, NPCI, and more.\nNationwide Impact & Ecosystem Building\nOver the past decade, Juspay has been a core enabler of India’s digital payments revolution by building infrastructure, protocols and frameworks that now serve billions of users. We work as a Technology Service Provider (TSP), connecting merchants, banks, and fintechs through secure, interoperable, and scalable payment systems.\nKey Highlights:\nBHIM & UPI Infrastructure: Partnered with NPCI to develop the UPI Common Library SDK and BHIM UPI App, enabling seamless and reliable UPI transactions across India. Juspay also designed the UPI Common Pin Page, now used for every UPI transaction nationwide.\nOpen Ecosystem Platforms: Built open-source frameworks like HyperSwitch (a goal towards ‘Linux for Payments’), HyperSDK, and HyperCheckout, empowering developers and merchants with flexibility, transparency, and full control.\nNational Digital Initiatives: Contributed to India’s open network efforts through projects like OCEN / HyperCredit (digital credit infrastructure) and ONDC / Namma Yatri (open mobility platform on the Beckn protocol).\nEngineering at Juspay\nAt Juspay, engineering is our core differentiator. We design high-assurance, real-time systems that power over 350M+ daily transactions with 99.999% availability. Our engineering organization is structured around Centers of Excellence (CoEs) that focus on the dual goals of framework innovation (the Ideal) and business enablement (the Practical).\nSDK Engineering: From Presto to HyperSDK, we build secure, native frameworks that power seamless payment experiences for partners like Google Pay & Amazon Pay.\nBackend Systems: Our in-house KvDB (write-back cache db) sustains 100× traffic spikes with zero downtime, ensuring reliable performance during India-scale surges.\nIntelligence Systems: Juspay’s AI engine turns live payment data into real-time routing decisions, using control-theoretic feedback loops and multi-arm RL bandits to dynamically steer transactions toward the most reliable gateways and continuously optimize success rates. (Read more in the published research paper: “A Control-Theoretic Approach to Dynamic Payment Routing for Success Rate Optimization”)\nInfrastructure & Platform: Multi-region, active-active architectures, on-prem + cloud deployments, and internal frameworks like InfraSwitch, A/B & ART on production data ensure always-on reliability and zero-downtime evolution.\nWhat Will Your Work Look Like?\nAt Juspay, you’ll work on deep-tech projects that blend AI, systems engineering, and first-principles design to solve challenges at the intersection of finance, infrastructure, and intelligence.\n1. JusTrust - National Fraud & Trust Intelligence System Building India’s nationwide fraud management and trust infrastructure, a federated, privacy-preserving platform for real-time fraud\ndetection (\n2. Xyne Spaces - AI-Native Workspace\nBuilding an AI-native enterprise workspace that unifies knowledge, conversations, tickets, workflows and other signals into an intelligence context layer (Org Brain). Xyne Spaces enables humans & AI agents to collaborate seamlessly through multi-agent orchestration, dynamic knowledge graphs, and context-aware interfaces. You’ll design agentic systems, reasoning pipelines, execution frameworks and build domain specific models that transform fragmented enterprise data into structured, actionable intelligence for teams to search & act within a single adaptive workspace.\n3. Namma Cloud - Sovereign Infrastructure DSL\nYou will work on building a sovereign cloud platform powered by Namma DSL, a Rust-based language for declarative infrastructure that acts as a digital twin of the entire data center. This aims to run on-premises and within regulated bank environments, spanning the entire stack from bare metal to applications, orchestrated by OpenStack, Ceph, and Kubernetes.\nWho Are We Looking For?\nWe’re seeking forward deployed engineers, researchers, and system thinkers who aren’t afraid to operate at the edge of complexity, where AI, large-scale data systems, and societal-scale infrastructure intersect. You’ll be joining a team that builds foundational systems for India’s digital trust, payments, and intelligence network where every line of code carries real-world impact.\nWe’re looking for people who:\nThink from first principles: You can translate complex theory in math, systems, or AI into elegant, scalable, and reliable implementations.\nForward Deployed Engineers (FDE): Engage actively with external stakeholders to translate complex domain requirements into scalable technical solutions with right abstraction.\nBuild 0 → 1 systems: You’re excited to pioneer in AI/ML, Agentic AI, or real-time distributed systems, turning abstract ideas into working frameworks.\nUnderstand Samaaj-Sarkaar-Bazaar: You appreciate the interplay between society, governance, & markets, and can design within the constraints of real-world institutions.","description_format":"text","description_chars":6026,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Payment Processing & Gateways"],"lifecycle":[{"event":"open","at":"2026-10-17T03:35:55Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":20,"reasons":["conf:2","win:early"],"computed_at":"2026-10-17T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/juspay-software-development-engineer-backend-2","json_url":"https://alion.io/job/juspay-software-development-engineer-backend-2.json","meta":{"generated_at":"2026-10-18T01:18:11Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":2169,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-19T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":59416},"rest":"https://alion.io/mcp/rest/get_company?id=59416"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fjuspay-software-development-engineer-backend-2"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fjuspay-software-development-engineer-backend-2"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fjuspay-software-development-engineer-backend-2"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/juspay-software-development-engineer-backend-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fjuspay-software-development-engineer-backend-2"}]}