{"id":1272373,"url":"https://alion.io/job/unloadbox-senior-java-developer","title":"Senior Java Developer","company":{"id":3800381,"name":"Unloadbox","domain":"unloadbox.com","url":"https://alion.io/company/unloadbox","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bengaluru, India","Hyderabad, India","Gurgaon, India","India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":17000,"max_usd":40000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":139},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Git","optional":false},{"name":"Gradle","optional":false},{"name":"Java","optional":false},{"name":"Linux","optional":false},{"name":"Maven","optional":false},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-09-02T11:52:12Z","employer_posted_date":null,"last_verified_at":"2026-09-02T11:52:12Z","board_verified":false,"closed_at":null,"days_open":43,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":43},"description":"Position Summary :\n\nGemini Solutions is looking for a Senior Java Developer with 5 - 10 years of experience in Electronic Trading and Capital Markets. The ideal candidate should possess strong expertise in Java backend development, low-latency distributed systems, and trading connectivity. Candidates should have hands-on experience working with FIX Protocol, electronic trading platforms, real-time market connectivity, and high-performance backend systems supporting front-office trading operations. The role involves designing and developing scalable trading platforms, integrating global trading venues, and contributing to the modernization of electronic trading infrastructure across global markets.\n\nPosition Responsibilities :\n\n- Design, develop, and maintain high-performance Java backend applications for electronic trading platforms.\n\n- Build scalable, low-latency services supporting pricing, order execution, trade processing, and market connectivity.\n\n- Design and implement connectivity solutions using FIX Protocol and proprietary/vendor APIs.\n\n- Integrate trading platforms with exchanges, ECNs, brokers, and global trading venues.\n\n- Support Dealer-to-Client (D2C) and Dealer-to-Dealer (D2D) connectivity initiatives.\n\n- Participate in modernization and migration of legacy trading platforms to strategic architectures.\n\n- Optimize applications for latency, throughput, scalability, and operational resilience.\n\n- Troubleshoot production issues and provide support for mission-critical trading applications.\n\n- Collaborate with front-office stakeholders, architects, and global engineering teams to deliver high-quality solutions.\n\n- Contribute to system stability, observability, and continuous platform improvements.\n\nExperience And Required Skill Set :\n\nTechnical Skills :\n\n- 5 - 10 years of hands-on experience in Java backend development.\n\n- Strong expertise in Core Java, Multithreading, Concurrency, Collections, and JVM Performance Tuning.\n\n- Proven experience developing low-latency, high-throughput distributed systems.\n\n- Hands-on experience with Electronic Trading or Capital Markets platforms.\n\n- Strong understanding of Order Lifecycle Management, Trade Execution, and Trade Processing workflows.\n\n- Experience working with FIX Protocol and trading connectivity architectures.\n\n- Experience integrating with Exchanges, ECNs, Brokers, or Trading Venues.\n\n- Knowledge of gateway architectures and FIX session management.\n\n- Strong understanding of Data Structures, Algorithms, and System Design.\n\n- Experience with Linux, Git, Maven/Gradle, and enterprise development practices.\n\nPreferred Skills :\n\n- Experience in Rates Trading products (Swaps, Bonds, Futures, Options).\n\n- Exposure to vendor-managed FIX connectivity platforms.\n\n- Working knowledge of Python for analytics or downstream integrations.\n\n- Experience integrating Pricing Engines or Quantitative Models.\n\n- Understanding of regulatory frameworks such as MiFID.\n\n- Experience with cloud technologies and containerized deployments is an added advantage.\n\n- Excellent analytical and problem-solving abilities.\n\n- Strong communication and stakeholder management skills.\n\n- Ability to work effectively in fast-paced front-office trading environments.\n\n- High ownership, accountability, and attention to detail.\n\n- Ability to collaborate with globally distributed teams.\n\nEducation :\n\n- Bachelors degree or masters in computer science, Engineering\nSkills\nJava, Trading Systems, Electronic Trading Systems, Backend Architecture, System Design, Data Structure, Algorithm","description_format":"text","description_chars":3559,"description_truncated":false,"requirements":{"experience_years_min":5,"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":[],"lifecycle":[{"event":"open","at":"2026-09-26T00:07:01Z"}],"visa":[],"liveness":{"score":16,"band":"cold","label":"Long shot","p_open":0.6,"p_active":0.576,"p_room":0.45,"age_days":42,"expected_fill_days":23,"reasons":["seen:42","win:tail"],"computed_at":"2026-10-15T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/unloadbox-senior-java-developer","json_url":"https://alion.io/job/unloadbox-senior-java-developer.json","meta":{"generated_at":"2026-10-16T03:13:02Z","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":4863,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-17T00:00:00Z"}},"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":3800381},"rest":"https://alion.io/mcp/rest/get_company?id=3800381"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Funloadbox-senior-java-developer"},{"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%2Funloadbox-senior-java-developer"},{"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%2Funloadbox-senior-java-developer"},{"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/unloadbox-senior-java-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Funloadbox-senior-java-developer"}]}